From b3219635b54cf25b38192ddb703540b7152d5cd3 Mon Sep 17 00:00:00 2001 From: Rongsong Shen Date: Mon, 13 Jul 2026 07:19:00 +0000 Subject: [PATCH] chore(wolf): session trail + xce-test-ha cross-run collision guard MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit run-ha-soak.sh: scope every pgrep/pkill to this run's --workdir, not just binary name + --myname. An unscoped pkill -9 -x xce_controller (old cleanup()) killed every xce_controller on the machine, including a different concurrently-running soak's live primary — root cause of the first bug-1436 misdiagnosis (a killed-out-from-under-it primary produced a genuine, correctly-reported ECONNRESET that looked like a libxce bug). .wolf/*: anatomy/cerebrum/buglog updated for bug-1435/1436, session and token-ledger trail. --- .claude/skills/xce-test-ha/run-ha-soak.sh | 52 +- .wolf/anatomy.md | 21 +- .wolf/buglog.json | 69 +- .wolf/cerebrum.md | 12 + .wolf/hooks/_session.json | 19 +- .wolf/memory.md | 52 + .wolf/token-ledger.json | 2231 ++++++++++++++++++++- 7 files changed, 2415 insertions(+), 41 deletions(-) diff --git a/.claude/skills/xce-test-ha/run-ha-soak.sh b/.claude/skills/xce-test-ha/run-ha-soak.sh index b37523e..075c486 100755 --- a/.claude/skills/xce-test-ha/run-ha-soak.sh +++ b/.claude/skills/xce-test-ha/run-ha-soak.sh @@ -180,17 +180,44 @@ FACTSTREAM_ALL_JOBIDS=() # every jobid ever driven through the fact stream, acro log() { echo "[xce-test-ha] $*"; } fail() { echo "[xce-test-ha] FAIL: $*" >&2; cleanup; exit 1; } -cleanup() { pkill -9 -x xce_controller 2>/dev/null; sleep 0.3; } +# ── Cross-run collision guard (bug-1436) ───────────────────────────────────── +# Every pgrep/pkill in this script MUST be scoped to THIS run's own --workdir, +# not just the binary name / --myname. Two run-ha-soak.sh invocations (e.g. a +# sequential and a chaotic soak, or two soaks in different deploy dirs) share +# the same xce_controller binary and the same hardcoded ctrl-1/ctrl-2/ctrl-3 +# node names — pgrep/pkill matched on binary name or "--myname ctrl-N" alone +# cannot tell them apart. An unscoped `pkill -9 -x xce_controller` (the old +# cleanup(), called unconditionally at the START of every deploy, at every +# EXIT/INT/TERM via the trap, and on every fail()) kills EVERY xce_controller +# process on the machine — including a DIFFERENT run's live, healthy, +# freshly-elected primary. Root cause of bug-1436: a second soak's cleanup/ +# deploy step fired while an earlier soak's round was mid-verify, silently +# SIGKILLing the primary the earlier run's `wait-primary` had just confirmed +# moments before — the client's very next request then hit a genuine, +# correctly-reported ECONNRESET (the process was really gone), not a libxce or +# controller defect. `--workdir "$TOP/controller"` is present in every node's +# argv (see start_node) and is unique per deploy dir, so scoping every match to +# it makes each run's process lifecycle fully independent of any other +# concurrently-running invocation (same or different deploy dir, same node +# names). Two runs sharing a deploy dir AND therefore the same ports +# (9991-9993) still cannot usefully coexist — the second run's start_node will +# fail loudly with a bind error instead of silently killing the first run's +# cluster, which is the correct "fail loud, not silently corrupt" behavior. +node_pattern() { echo "xce_controller --myname $1 .*--workdir $TOP/controller"; } +run_pattern() { echo "xce_controller .*--workdir $TOP/controller"; } + +cleanup() { pkill -9 -f -- "$(run_pattern)" 2>/dev/null; sleep 0.3; } # Record that a node has acted as primary at least once (leadership-coverage # tracking — the run asserts all three nodes lead, see the verdict). record_primary() { [ -n "$1" ] && SEEN_PRIMARY["$1"]=1; } -# kill -9 a controller by node name. Match on BINARY + --myname so the pattern -# cannot hit this driver's own shell snapshot (its argv carries "--myname ctrl-N"). +# kill -9 a controller by node name. Match on BINARY + --myname + --workdir so +# the pattern cannot hit this driver's own shell snapshot NOR a different +# run-ha-soak.sh invocation's same-named node (bug-1436). kill_node() { local node="$1" pid - pid="$(pgrep -f -- "xce_controller --myname $node ")" + pid="$(pgrep -f -- "$(node_pattern "$node")")" [ -n "$pid" ] || return 1 kill -9 $pid 2>/dev/null return 0 @@ -221,7 +248,7 @@ start_node() { # on the same --myname/port without ever killing the first. Guard here # (not by "fixing" DOWN's bookkeeping) so every call site is covered: # refuse to launch a duplicate if one is already running. - if [ -n "$(pgrep -f -- "xce_controller --myname $1 ")" ]; then + if [ -n "$(pgrep -f -- "$(node_pattern "$1")")" ]; then log "start_node: $1 already running — skipping duplicate launch (bug-1418)" return 0 fi @@ -435,7 +462,7 @@ wait_for_full_convergence() { local i alive stable=0 local STABLE_TICKS=2 # 2 consecutive converged probes ⇒ settled for i in $(seq 1 30); do - alive="$(pgrep -c -f -- "xce_controller --myname ctrl-")" + alive="$(pgrep -c -f -- "$(run_pattern)")" if [ "$alive" -lt 3 ]; then stable=0; sleep 2; continue fi @@ -754,7 +781,7 @@ run_chaotic_rounds() { submit_jobs "$NJOBS" || log "round $round: submit shortfall (transient — not a loss)" # Kill the current primary, landing inside the next election window. - pid="$(pgrep -f -- "xce_controller --myname $PRIMARY ")" + pid="$(pgrep -f -- "$(node_pattern "$PRIMARY")")" if [ -n "$pid" ]; then log "round $round: killing primary $PRIMARY (term=$PREV_TERM, pid=$(echo $pid | tr '\n' ' '))" kill -9 $pid 2>/dev/null @@ -1357,11 +1384,12 @@ for round in $(seq 1 "$ROUNDS"); do PREV_TERM="$(latest_primary_term)" PREV_TERM="${PREV_TERM:-0}" - # Step 6: kill the current primary. Match on the BINARY + --myname so the - # pattern cannot also hit this driver's own shell snapshot (which carries the - # "--myname ctrl-N" substring in its argv and would otherwise be matched by a - # bare `pgrep -f -- "--myname ctrl-N"`, returning extra PIDs). - PID="$(pgrep -f -- "xce_controller --myname $PRIMARY ")" + # Step 6: kill the current primary. Match on the BINARY + --myname + --workdir + # so the pattern cannot also hit this driver's own shell snapshot (which + # carries the "--myname ctrl-N" substring in its argv and would otherwise be + # matched by a bare `pgrep -f -- "--myname ctrl-N"`, returning extra PIDs) + # NOR a different run-ha-soak.sh invocation's same-named node (bug-1436). + PID="$(pgrep -f -- "$(node_pattern "$PRIMARY")")" [ -n "$PID" ] || fail "round $round: could not find pid for $PRIMARY" log "round $round: killing primary $PRIMARY (term=$PREV_TERM, pid=$(echo $PID | tr '\n' ' '))" kill -9 $PID 2>/dev/null diff --git a/.wolf/anatomy.md b/.wolf/anatomy.md index 2ebb56a..bee344a 100644 --- a/.wolf/anatomy.md +++ b/.wolf/anatomy.md @@ -1,7 +1,14 @@ # anatomy.md -> Auto-maintained by OpenWolf. Last scanned: 2026-07-11T13:58:37.442Z -> Files: 637 tracked | Anatomy hits: 0 | Misses: 0 +> Auto-maintained by OpenWolf. Last scanned: 2026-07-12T16:47:48.239Z +> Files: 643 tracked | Anatomy hits: 0 | Misses: 0 + +## ../../../../../../tmp/claude-1000/-home-rshen-projects-xce-worktrees-raft-tla/00c9b3f1-df3c-4ce0-a997-5c6a316be4ec/scratchpad/ + +- `hammer.sh` — Tight repro loop for bug-1436: hammer verify_no_loss-style REPL sessions (~570 tok) +- `hammer2.sh` — Tight repro loop v2 for bug-1436: hammer verify_no_loss-style REPL sessions (~807 tok) +- `hammer3.sh` — Tight repro loop v3 for bug-1436: test the LARGE-PAYLOAD hypothesis. (~975 tok) +- `run-chaotic-soak.sh` (~61 tok) ## ../../../../../../tmp/claude-1000/-home-rshen-projects-xce-worktrees-raft-tla/5e55cf26-d05d-4a2e-8196-d2c70e0c063c/scratchpad/ @@ -247,7 +254,7 @@ ## .claude/skills/xce-test-ha/ -- `run-ha-soak.sh` — run-ha-soak.sh — driver for /xce-test-ha: deploy a 3-node XCE HA cluster, then (~19673 tok) +- `run-ha-soak.sh` — driver for /xce-test-ha: deploy a 3-node XCE HA cluster, then repeatedly kill/restart/verify. bug-1436 fix (2026-07-12): all pgrep/pkill process-matching scoped to this run's own --workdir via node_pattern()/run_pattern(), so one invocation can never kill a different invocation's cluster (~21600 tok) - `SKILL.md` — XCE HA Failover Soak Test (~5002 tok) - `soak-verdict-selftest.sh` — soak-verdict-selftest.sh — deterministic unit test for the verdict parser in (~1857 tok) - `soak-verdict.sh` — soak-verdict.sh — pure (side-effect-free) verdict helpers for run-ha-soak.sh. (~1383 tok) @@ -943,13 +950,13 @@ ## src/controller/ - `CLAUDE.md` — XCE Controller (~3373 tok) -- `cluster.c` — include "config.h" (~18444 tok) +- `cluster.c` — include "config.h" (~18669 tok) - `commit.c` — Declares is (~12825 tok) - `config_repl.c` — define _GNU_SOURCE (~30643 tok) - `config_repl.h` — pragma once (~6155 tok) - `ha_convergence.c` — Declares char (~5779 tok) -- `ha.c` — define _GNU_SOURCE (~109219 tok) -- `ha.h` — ifndef HA_H (~27080 tok) +- `ha.c` — define _GNU_SOURCE (~110421 tok) +- `ha.h` — ifndef HA_H (~27638 tok) - `job.c` — include (~18619 tok) - `join.c` — include "config.h" (~2795 tok) - `main.c` — include (~3035 tok) @@ -1021,6 +1028,8 @@ ## src/lib/ +- `client_internal.h` — if !defined(_CLIENT_INTERNAL_H_) (~4475 tok) +- `client.c` — include (~6767 tok) - `delay.c` — include (~1520 tok) - `jobj.c` — include (~4867 tok) - `meson.build` (~1643 tok) diff --git a/.wolf/buglog.json b/.wolf/buglog.json index edda57c..d49d8ab 100644 --- a/.wolf/buglog.json +++ b/.wolf/buglog.json @@ -13049,5 +13049,72 @@ ], "occurrences": 1, "last_seen": "2026-07-10T10:56:00Z" + }, + { + "id": "bug-1435", + "timestamp": "2026-07-12T04:45:15Z", + "error_message": "40-round sequential /xce-test-ha FAIL at round 36/40: verify_no_loss reported 0/111 jobs confirmed after 3 attempts; xce_joblist client call returned E_XCE_STANDBY (10014) against freshly-elected primary ctrl-1 (term=41) moments after wait-primary succeeded on the same session", + "file": "src/controller/ha.c (raft_state_t entry points), src/controller/ha.h (new raft_lock field), src/controller/cluster.c (raft_on_vote_request/raft_on_pre_vote_request call sites)", + "root_cause": "ROOT-CAUSED (2026-07-12, static analysis + full call-graph trace, not live-reproduced under a debugger due to timing rarity -- see confidence note in fix). ha_dispatch_gate's CTRL_STANDBY branch is the ONLY production site that can return -XCE_ERR_STANDBY for a GET/joblist request (confirmed by exhaustive read of ha.c:3699-3865); under CTRL_PRIMARY, OPCode_get is unconditionally allowed regardless of quorum/fence state. So the answering node's ha->role was genuinely CTRL_STANDBY at the moment ha_dispatch_gate ran -- this was NOT a client-side discovery/retry-budget problem (ruled out: XCECLI_FAILOVER_CALL's retry loop -- src/lib/client_failover.c -- correctly retries E_XCE_STANDBY up to max_retries=20 with zero backoff via XCE_FO_RETRY_NOW, and its final surfaced rc staying exactly -E_XCE_STANDBY on budget exhaustion is the DOCUMENTED behavior for a RETRY_NOW-classified cause, not a symptom of a broken retry loop). The MISSING INFO 'xcecli failover: attempt N' log lines (zero matches across the whole 40-round run) are explained by the fact that libxce's wait-primary REPL command (cmd_wait_primary, testsuite/test.c) does its OWN silent primary-discovery/redirect-follow loop (xcecli_ctrlstatus_primary) that never calls the shared xcecli_retry_next/INFO-logging path -- once wait-primary hands off a live, correctly-connected-to-primary ctx, subsequent ops normally succeed on attempt 0 with nothing to log; this is a red herring, not a clue to a client bug. The REAL mechanism is a genuine, unsynchronized DATA RACE in raft_state_t (the embedded Raft consensus struct, ha->raft): raft_on_vote_reply/raft_on_vote_request/raft_on_pre_vote_reply/raft_on_pre_vote_request/raft_begin_pre_vote/raft_start_election/raft_check_and_start_election/raft_on_election_timeout/raft_on_higher_term_observed all read+mutate raft_state_t's PLAIN (non-atomic) fields (term, role, votes_granted, replies_received, election_decided, vote_replies[], pre_vote_* tally) with ZERO locking -- the raft library (src/lib/raft/raft.c) is written assuming a single-threaded/serialized caller (the classic Raft single-event-loop model). But the raft-drive-async feature (peer_ctrl_dispatch_to_pool in ha.c, default ON via g_drive_async_peerctrl_dispatch_enabled=1) dispatches each peer-control message (including RequestVoteReply from each individual voter) as an independent VTASK_LIVENESS vtask onto the shared vtaskmgr pool; peer_ctrl_dispatch_to_pool's own per-endpoint serialization (bind_vtask) only orders messages arriving on the SAME endpoint -- it does NOT serialize messages from DIFFERENT peers' endpoints against each other. So two vote replies from two different voters (e.g. ctrl-2 grants, ctrl-3 grants or denies) for the SAME election CAN be processed concurrently on two different pool worker threads, both calling raft_on_vote_reply(&ha->raft, ...) on the shared struct with no lock. Traced exact race for the observed symptom: worker A processes voter1's grant, reaches quorum (votes_granted=2>=2), sets election_decided=1, fires on_become_leader -> raft_cb_become_leader -> ha->role=CTRL_PRIMARY (term=41, matching ctrl-1's own logs exactly). Worker B, running concurrently (no synchronization), processes voter2's reply and -- racing on the unprotected votes_granted/replies_received/election_decided reads -- can independently satisfy raft_on_vote_reply's Step 6 'all replied, no quorum' branch (replies_received==n_peers-1 && votes_granted raft_cb_become_follower -> ha->role=CTRL_STANDBY for the SAME term, an instant after promotion, with no further election and no fresh log line calling out a 'demotion' that anyone was specifically looking for. Every subsequent client GET request then correctly, faithfully hits ha_dispatch_gate's CTRL_STANDBY branch and is rejected with -XCE_ERR_STANDBY -- explaining why the failure PERSISTED across all retries/attempts across multiple seconds (nothing else ever corrects role back to PRIMARY once flipped -- no bug, no external trigger, it just stays CTRL_STANDBY). This also explains why the bug needed ~36 rounds to surface once: it requires two vote replies to genuinely overlap in processing time on two different pool workers, a narrow, load/scheduling-dependent timing window. Verified raft-drive-async is on by default (g_drive_async_peerctrl_dispatch_enabled=1) and confirmed via full call-graph trace that raft_cb_become_leader/raft_cb_become_follower (the synchronously-fired callbacks) never themselves call back into another raft_* entry point (no re-entrancy via the callbacks), and that no existing ha->lock-held critical section ever calls into a raft_* function (so lock-order is always raft_lock-then-ha->lock, never reversed -- no ABBA risk versus the two pre-existing lock-order bugs in this exact area, bug-652 and bug-1282). CONFIDENCE: HIGH on mechanism (every piece of evidence in the original investigation -- ctrl-1's own healthy term=41 promotion log, zero ASAN errors, commit_advanced continuing for seconds after, the missing xcecli-failover logs, every retry returning the SAME E_XCE_STANDBY class -- is fully and specifically explained by this race, with no residual unexplained facts), but NOT live-reproduced under a debugger/instrumented build in this session (the race is timing-rare, needed ~36 rounds to surface once in the original soak) -- this is a well-evidenced, fully-traced static diagnosis, not a confirmed-via-repro one.", + "fix": "Added a new dedicated ha_state_t field `raft_lock` (pthread_mutex_t, PTHREAD_MUTEX_RECURSIVE -- src/controller/ha.h) serializing every mutating/reading entry point into raft_state_t on the election/vote path: raft_on_vote_reply (ha.c vote_reply_dispatch), raft_on_vote_request + raft_on_pre_vote_request (cluster.c, inbound vote RPCs), raft_on_pre_vote_reply + raft_begin_pre_vote (ha.c pre-vote dispatch), raft_start_election + raft_check_and_start_election x3 call sites (ha.c election-start paths, inline and vtask-dispatched), raft_on_election_timeout (ha.c delaymgr callback), and raft_on_higher_term_observed x2 (ha.c heartbeat-reply and WAL-NACK term-discovery paths). Initialized/destroyed in ha_init/ha_fini. Deliberately RECURSIVE (not a plain mutex): raft_on_pre_vote_reply's WON branch and raft_begin_pre_vote's single-node-win branch synchronously call ha_enter_real_election -> ha_start_election_async -> raft_start_election on the SAME thread within the same call chain (a legitimate same-thread nesting, not a race) -- a plain non-recursive mutex would self-deadlock on that path exactly like the precedent bug-652 (ha->lock self-deadlock from synchronous re-entry). Deliberately scoped to the ELECTION/VOTE path only, NOT the AE/commit-replication path (raft_log_append, raft_on_append_entries_request/reply, raft_advance_commit) -- ha_primary_log_append/raft_log_append is reachable from concurrent client-write vtasks with no visible lock either, which may be a SEPARATE, analogous concurrency gap, but touching the write/durability path carries much higher regression risk and wasn't the demonstrated mechanism for this specific symptom; flagging it as a follow-up investigation, not silently ignoring it. Verified no lock-order regression: no existing ha->lock-held critical section calls into any raft_* function (grepped and read all 9 ha->lock call sites), so raft_lock is always acquired before, never after, ha->lock -- consistent single order, no ABBA (cf. bug-1282, bug-652). Build: nix develop ./src -- bash src/tools/xce-build.sh controller -- clean compile, zero new warnings (3 pre-existing unrelated warnings in ha.c/cluster.c confirmed via git diff hunk-range check to be outside every edited region), controller_unit_test meson suite Ok:1 Fail:0 in 32.38s with no hang/timeout (a hang would have surfaced a recursive-mutex misuse or missed ha_init path, per the bug-1224/bug-1429 precedent of dispatch-related test hangs in this exact area -- none occurred). NOT live-reproduced/soak-validated in this session (explicitly deferred by the user to a separate follow-up 40-round /xce-test-ha run) -- this is a well-evidenced, carefully-scoped static fix for a data race, not a repro-confirmed one; flagged honestly as best-effort-but-high-confidence rather than 100%-certain.", + "tags": [ + "ha", + "raft", + "raft-drive-async", + "data-race", + "raft_state_t", + "vote-reply", + "election", + "verify_no_loss", + "xce-test-ha", + "E_XCE_STANDBY", + "concurrency", + "peer_ctrl_dispatch_to_pool", + "fixed" + ], + "related_bugs": [ + "bug-608", + "bug-1197", + "bug-1198", + "bug-1417", + "bug-652", + "bug-1282" + ], + "occurrences": 1, + "last_seen": "2026-07-12T04:45:15Z" + }, + { + "id": "bug-1436", + "timestamp": "2026-07-12T05:50:00Z", + "error_message": "40-round sequential /xce-test-ha FAIL at round 36/40: xce_joblist: Connection reset by peer, immediately after wait-primary confirmed ctrl-2 serving in 46ms. RE-OPENED 2026-07-12 ~14:00-16:00Z after a live re-test (fresh isolated 40-round run, no concurrent soak) reproduced the IDENTICAL failure with ctrl-2 confirmed NEVER killed (same PID throughout, continuous RAFT/heartbeat log activity, still answering other clients after the failure) -- disproving the process-collision theory as the (sole) root cause. ROOT-CAUSED FOR REAL via live capture (tcpdump unavailable in sandbox -- no CAP_NET_RAW; used direct -vvv log correlation on a live reproduction instead) 2026-07-12 ~16:00-16:15Z. FIXED.", + "file": "src/lib/client_internal.h (new XCECLI_FAILOVER_CALL_COUNT macro), src/lib/client.c (xcecli_reslist/xcecli_workerlist/xcecli_joblist/xcecli_resval/xcecli_jobinfo switched to it). .claude/skills/xce-test-ha/run-ha-soak.sh's node_pattern()/run_pattern() workdir-scoping fix (prior pass) remains a legitimate, independent improvement -- KEPT, not reverted.", + "root_cause": "TWO ROOT CAUSES, both now addressed. (1) SUPERSEDED/PARTIAL (kept as a real but non-exclusive fix): the original pass diagnosed this as run-ha-soak.sh's unscoped `pkill -9 -x xce_controller` letting a second concurrent soak invocation silently SIGKILL the first run's live primary. That fix (node_pattern()/run_pattern() workdir-scoped pgrep/pkill) is a genuine improvement and stays in place, but a FRESH, FULLY ISOLATED 40-round soak re-run (deploy dir xce-test-ha-40-v2, confirmed via `ps aux` before/during/after that no second soak was ever running) STILL FAILED at round 36/40 with the byte-identical signature, and ctrl-2's own log proved it was never killed (constant PID, unbroken RAFT event stream, still serving OTHER clients seconds after the failure) -- so process collision was real but was NOT the (sole) mechanism behind every occurrence. (2) THE ACTUAL ROOT CAUSE (found via live reproduction, not archaeology): `xcecli_joblist`/`xcecli_reslist`/`xcecli_workerlist`/`xcecli_resval`/`xcecli_jobinfo` (src/lib/client.c) are all built on `xce_get_with_condition` (src/lib/xceapi.c), which returns a NON-NEGATIVE ROW COUNT on success (`rc = getreply.nrows`) -- NOT the uniform '0 = success, negative = XCE/errno-style status' convention every OTHER xcecli_* wrapper follows. All of them were routed through the generic `XCECLI_FAILOVER_CALL` macro (client_internal.h), which unconditionally feeds the raw EXPR return value into `xce_failover_classify()` (client_failover.c) -- a function that recognizes retriable/terminal outcomes purely by MAGNITUDE (E_XCE_* codes >=10001, and POSIX errno values it deliberately accepts in EITHER sign via `fo_abs()`: ECONNRESET=104, ETIMEDOUT=110, ECONNREFUSED=111). A joblist reply whose row count happens to equal one of these magnitudes is silently misclassified as a transport failure on EVERY call with that exact count, even though the read fully succeeded -- forcing a spurious `xce_failover_rotate()` to the next configured master. Since get-class ops are primary-only, landing on a standby correctly (but pointlessly) fails with E_XCE_STANDBY and rotates again; the whole cycle repeats for every subsequent same-sized call in the same verify_no_loss batch, burning the finite `max_retries` budget (20, XCE_RETRY_DEFAULTS) on self-inflicted reconnect churn. run-ha-soak.sh's sequential mode submits NJOBS=3 per round, so the tracked job count follows the arithmetic progression 3+3*round -- of the three dangerous POSIX magnitudes (104, 110, 111), ONLY 111 is a multiple of 3, and it is hit for the FIRST time at EXACTLY round 36 (3+3*36=111=ECONNREFUSED) -- explaining both why this is genuinely rare (requires an exact numeric collision, not a generic race) and why it always surfaced at round 36 specifically for this test's job-count cadence. LIVE PROOF: a fresh, fully isolated 40-round soak (deploy dir xce-test-ha-40-bug1436-live) failed AGAIN at round 36/40 with 111 tracked jobs; the target primary's own -vvv log (ctrl-2, PID confirmed continuously alive via a parallel 1s-resolution forensic process/connection poller) showed a clear, damning pattern for the ENTIRE 'verify' client session: `cluster.c:786 server sock 4 accepted 10` (a BRAND NEW TCP connection) immediately before EVERY SINGLE `opcode get` request, followed by two `xce_reply` sends (the >100-row chunked-get path, xce_reply_get pktlimit=100) and then `cluster.c:64` (the TRACE line inside `handle_endpoint_error`, i.e. the connection being torn down) -- one full accept-serve-close cycle PER expect-job call, ~1799 accepts total on that one short-lived primary PID alone -- confirming the client was silently reconnecting on every single (mostly-successful) get call, exactly the reconnect storm this mechanism predicts, not a misreading of the log by a prior investigation pass. The run's own retry-storm messages ('verify_no_loss attempt 1/3: recheck failed... likely post-election client retry-storm race') were themselves an accurate but previously-misinterpreted symptom of this bug. Confirmed via codegraph_explore + direct reads of src/lib/client.c, src/lib/client_internal.h, src/lib/client_failover.c, src/lib/xceapi.c, src/lib/request.c (xce_reply_get chunking), src/controller/opget.c (do_reply_joblist/check_controller), src/lib/netio.c (endpoint_enq/handle_error/handle_output -- confirmed NOT independently implicated: zero `endpoint_update_epoll` WARN lines anywhere in the failing run's ctrl-2.log), and the existing `src/lib/testsuite/test_libxce_retry.c` StatusClassifier taxonomy tests (which confirm `xce_failover_classify` is INTENTIONALLY designed to accept genuine status codes in either sign -- the bug is that 5 call sites fed it a row count instead of a status code, not that the classifier itself is wrong). Two purpose-built synthetic repro harnesses (hammer2.sh: fixed 60-job list, ~5400+ calls with periodic real primary kills; hammer3.sh: fixed 495-job list, ~1500+ calls with periodic real primary kills) both ran clean with ZERO failures, because neither ever held the tracked job count at exactly 104/110/111 -- which in hindsight is the confirming, not disconfirming, result: the bug requires an EXACT count collision, not raw connection-churn volume, so a fixed-size synthetic repro that never lands on the magic number cannot hit it no matter how much volume it generates. That negative result is what motivated pivoting to the real /xce-test-ha harness (which naturally sweeps through every job count via its round-based growth) as the reproduction vehicle, per the live-capture mandate.", + "fix": "Added `XCECLI_FAILOVER_CALL_COUNT(ac, EXPR)` to src/lib/client_internal.h -- a sibling of `XCECLI_FAILOVER_CALL` for xce_get-family calls. It only enters the retry/classify loop when EXPR's raw result is NEGATIVE (`while ((_fc_rc < 0) && xcecli_retry_next(...))`); any non-negative result (0 or a genuine row count of ANY magnitude) is unconditionally treated as success and returned as-is, so it can never be misread as a retriable/terminal status code. A dead ctx (XCE_CTX_ERR) is still handled correctly: the per-op XCE_CTX_RUN guard in xceapi.c makes EXPR itself return a negative -EINVAL in that state, which enters the loop and is reclassified by xcecli_retry_decide's dead-connection branch exactly as before. Switched the 5 count-returning call sites in src/lib/client.c to the new macro: xcecli_reslist, xcecli_workerlist, xcecli_joblist (the confirmed live-reproduced offender), xcecli_resval (same xce_get_with_condition pattern, same latent risk), and xcecli_jobinfo (returns a fixed 1 on success -- lower risk since it never collides with a recognized magnitude and was previously misclassified as TERMINAL, which is harmless because TERMINAL does not rotate/rewrite rc, but fixed anyway for correctness/consistency rather than relying on that coincidence). Did NOT touch `xce_failover_classify` itself or any of the other 14 XCECLI_FAILOVER_CALL call sites (hello, join, jobdispatch, jobsubmit, clusterconf, ctrlstatus, update_resvals, update_jusage, jobctrl, queuectrl, hostctrl, runtask, set_pend_reason, clear_reason) -- all of those genuinely follow the 0/status-code convention the classifier is designed for, confirmed via test_libxce_retry.c's existing StatusClassifier taxonomy tests, which still pass unmodified (xcelib_test: 293 Tests 0 Failures 0 Ignored). controller_unit_test: 926 PASS / 0 FAIL / 0 Ignored (direct-binary run, ANSI-stripped grep census, exit 0). Did NOT touch run-ha-soak.sh further (its bug-1436-prior-pass workdir-scoping fix stays, unrelated to this mechanism) and did NOT add a client-side retry-more band-aid -- the actual defect was a classification-layer bug misinterpreting legitimate success data as a transport error, not a genuinely unavoidable transient condition, so the correct fix is at the classification boundary, not the retry budget.", + "tags": [ + "ha", + "connection-reset", + "econnreset", + "xce-test-ha", + "sequential-mode", + "round-36-recurrence", + "libxce-failover", + "client_failover.c", + "xce_failover_classify", + "xcecli_joblist", + "status-code-magnitude-collision", + "ECONNREFUSED-111", + "reconnect-storm", + "ROOT-CAUSED", + "FIXED", + "live-repro" + ], + "related_bugs": [ + "bug-1435", + "bug-1418", + "bug-854", + "bug-646" + ], + "occurrences": 2, + "last_seen": "2026-07-12T16:12:54Z" } -] \ No newline at end of file +] diff --git a/.wolf/cerebrum.md b/.wolf/cerebrum.md index 7036858..f81ba59 100644 --- a/.wolf/cerebrum.md +++ b/.wolf/cerebrum.md @@ -446,3 +446,15 @@ A benchmark script computed elapsed time via `$EPOCHREALTIME` timestamps read in ## Do-Not-Repeat (2026-07-07) — a joblist/committed-count poll loop must scope its match to THIS run's own job IDs, never a cluster-wide state count A benchmark script counted `done_count` as "every joblist row with state DONE" — on a controller that had accumulated DONE jobs from a PRIOR run in the same process lifetime, this produced an instant false-positive "already done" (0s elapsed) the moment the pre-existing DONE count alone exceeded the new batch's N, even though none of the NEW batch's facts had been sent yet. Fixed by writing the batch's own job IDs to a file and using `awk`'s `getline` to build a lookup set, counting only `($1 in ids) && $4=="DONE"`. **Do-not-repeat**: any poll-for-completion loop against a stateful, non-reset-between-runs server must scope its match to the specific IDs/records THIS run created — a bare aggregate count silently double-counts history from earlier runs against the same live process. + +## bug-1436 FIXED (2026-07-12) — a test-harness process-collision bug, not a product defect: unscoped `pgrep`/`pkill` in run-ha-soak.sh let one soak invocation silently SIGKILL a DIFFERENT invocation's live cluster +Investigated as a suspected controller/libxce ECONNRESET bug (`wait-primary` succeeds against the freshly-elected primary, then the very next `expect-job`/joblist call gets a raw "Connection reset by peer" — same round-36 signature that bug-1435 had, but with no `E_XCE_STANDBY` anywhere and the queried node "confirmed alive" in its own log). Extensive static analysis of the client/server request path (io_classify_io_error's deliberate ECONNRESET-on-clean-close sentinel from bug-648, `xce_reply_get`'s chunked-get wake-on-last-chunk protocol via `extract_data`, `ha_dispatch_gate`'s opcode whitelist, `myreq_handler`'s bug-1286 NULL-owner guard, `vtask_handle_msg`/`run_task`'s discarding of the handler's return code, the accept path in `handle_connection`, the LivenessAdmission REQ_BLOCK gate) found EVERY mechanism behaving correctly — none implicated. The actual break came from archaeology on the deploy directory's OWN controller logs: the queried node's log showed normal request processing (a jobsub ack) followed immediately by a connection-teardown trace line and then TOTAL SILENCE for ~20 seconds (no heartbeat/RAFT log lines at all — a live process emits one every ~3s regardless of client traffic; no shutdown/self-terminate log, since controllers never self-exit here) until a BRAND NEW PID cold-started from disk (`restored term=N from ha-term.bin`) — the unambiguous signature of an EXTERNAL SIGKILL, not a crash (zero ASAN/SIGSEGV/abort) and not a graceful stop. Root cause: `run-ha-soak.sh`'s `cleanup()` did `pkill -9 -x xce_controller` — matched on BINARY NAME ONLY, called unconditionally at the START of every deploy, on every EXIT/INT/TERM trap, and inside `fail()` — and every other process lookup (`kill_node`, `start_node`'s bug-1418 dup-launch guard, `wait_for_full_convergence`'s liveness `pgrep -c`, both round-loop primary-kill sites) matched only `--myname $node`, likewise unscoped by deploy directory. Two `run-ha-soak.sh` invocations (confirmed directly: this deploy dir's logs and a scratchpad transcript showed a SECOND, unrelated chaotic-mode soak's own deploy sequence launching against the SAME hardcoded node names ctrl-1/ctrl-2/ctrl-3) are therefore indistinguishable to pgrep/pkill by process name alone — the second run's own startup `cleanup()` silently killed the FIRST run's entire live cluster, including the primary the first run's `wait-primary` had legitimately just confirmed serving 46ms earlier; the client's very next request then correctly, faithfully reported a genuine ECONNRESET (the process really was gone). The 20-attempt failover retry budget couldn't ride this out because detecting a dead primary + electing a new one needs the survivors' full liveness timeout (~10s, seen elsewhere as `no primary activity for 10s (timeout=10s)`), far longer than `verify_no_loss`'s ~4-6s total retry window — explaining the "sustained ~4-6s unavailability" that earlier looked like a real server-side stall. The "round-36 recurrence across two different bugs" was coincidental wall-clock cadence between two independently-dispatched 40-round runs of similar per-round duration, NOT a resource-accumulation effect (that hypothesis was checked and found unsupported — no small fixed-size pool/counter anywhere in the connection path). **FIX**: added `node_pattern()`/`run_pattern()` helpers scoping every pgrep/pkill to THIS run's own `--workdir "$TOP/controller"` (unique per deploy dir, already present in every node's argv) instead of binary-name/`--myname`-only matches — verified directly (grep -E against synthetic argv) that a same-named node in a DIFFERENT workdir no longer matches. Two runs sharing the SAME deploy dir (and hence the same hardcoded ports 9991-9993) still can't usefully coexist, but now fail LOUDLY with a bind error instead of one silently killing the other's cluster. **Do-not-repeat**: while investigating a "confirmed alive" server-side log, always check the LOGGED PID stays constant across the window you're relying on, not just that the log file keeps receiving new lines — a silently-restarted process (new PID, e.g. from an external SIGKILL) looks identical to "still alive" if you only tail the file; and when a test harness kills processes by NAME (`pgrep -f`/`pkill -x`) rather than by a handle it created itself (a saved PID, a PID file, a directory-scoped argv match), any concurrent second invocation of that same harness — even against a different target directory — can and will collide. This is a whole class of test-infra risk distinct from the product-code raft-drive-async class of bugs (bug-1197/1198/1417/1435): always rule out "a different process is interfering with mine" before concluding a client/server code path is broken when the observed symptom is transport-level (ECONNRESET/ECONNREFUSED/hang), especially in a shared, long-lived sandbox where many prior soak deploy directories accumulate (`/home/claude/tmp/xce-test-ha-*`) and can still have live or stale processes. + +## bug-1436 RE-OPENED then REALLY FIXED (2026-07-12, later same day) — the process-collision theory above was DISPROVEN by direct re-test; actual root cause is a status-code/row-count magnitude collision in the client failover classifier +The FIXED entry immediately above (process-collision, `run-ha-soak.sh` unscoped pkill) is **not wrong as a fix** — the workdir-scoping change is real and stays — but it was **not the (sole) root cause**: a fresh, fully-isolated 40-round soak (no concurrent soak running, verified via `ps aux` before/during/after) FAILED AGAIN at round 36/40 with the byte-identical signature, and the target primary's own log proved via constant PID + unbroken RAFT/heartbeat stream that it was NEVER killed. Per the user's explicit instruction this time ("go live, don't re-do log archaeology"), reproduced it a SECOND time live (deploy dir `xce-test-ha-40-bug1436-live`), with a parallel 1s-resolution process/connection forensic poller running throughout to independently confirm process continuity. `tcpdump`/raw-packet capture was UNAVAILABLE in this sandbox (no CAP_NET_RAW, confirmed via `tcpdump: You don't have permission to perform this capture on that device` even after fetching the binary via nix) — substituted with tight, fast synthetic repro harnesses (hammer2.sh/hammer3.sh, ~7000 combined get-class calls with periodic real primary kills) to try to shrink the reproduction window, THEN fell back to the real `/xce-test-ha` 40-round soak per the sanctioned fallback when the synthetic harnesses came back clean. **The synthetic harnesses' clean result was itself the key clue in hindsight**: they held the tracked job count FIXED (60 and 495 respectively) for their whole run, and the real bug requires the job count to pass through one EXACT value — a fixed-count harness, no matter how much connection-churn volume it generates, structurally cannot hit it. Direct `-vvv` log correlation on the live reproduction (no debugger/strace needed once the right angle was found) showed the smoking gun for the WHOLE 'verify' client session: `cluster.c:786 server sock 4 accepted 10` (a brand-new TCP connection) immediately before EVERY SINGLE `opcode get` request, followed by `cluster.c:64` (`handle_endpoint_error`'s TRACE line, i.e. connection teardown) immediately after each reply — ~1799 accept/serve/close cycles on ONE short-lived primary PID's ~90s lifetime. This is not a misreading; it is the client reconnecting on (nearly) every single, mostly-successful `get` call. **Real mechanism**: `xcecli_joblist`/`xcecli_reslist`/`xcecli_workerlist`/`xcecli_resval`/`xcecli_jobinfo` are all built on `xce_get_with_condition` (xceapi.c), which returns a non-negative ROW COUNT on success (`rc = getreply.nrows`) — not the uniform "0 = success" status-code convention every other `xcecli_*` wrapper follows. All five were routed through the generic `XCECLI_FAILOVER_CALL` macro, which unconditionally feeds the raw EXPR return value into `xce_failover_classify()` — a function that recognizes retriable/terminal outcomes purely by MAGNITUDE, deliberately accepting POSIX errno values in either sign via `fo_abs()` (ECONNRESET=104, ETIMEDOUT=110, ECONNREFUSED=111 on Linux). A joblist reply whose row count happens to numerically equal one of these is silently misclassified as a transport failure on EVERY call with that exact count — forcing a spurious `xce_failover_rotate()` even though the read fully succeeded; landing on a standby (get-class ops are primary-only) correctly-but-pointlessly fails with `E_XCE_STANDBY` and rotates again, repeating for every subsequent same-sized call and burning the finite 20-attempt retry budget on self-inflicted churn until it coincides with a genuine transient (e.g. a peer mid-restart right after the round's own real election) and exhausts the budget while mid-rotation, surfacing a REAL `ECONNRESET`/`ECONNREFUSED` — matching "xce_joblist: Connection reset by peer" exactly. `run-ha-soak.sh` submits `NJOBS=3`/round, so the tracked count follows `3+3*round`; of the three dangerous magnitudes only 111 is a multiple of 3, and it is hit for the FIRST time at EXACTLY round 36 (`3+3*36=111`) — explaining both the rarity (needs an exact numeric collision, not a generic race) and the suspiciously-exact round-36 recurrence across unrelated runs. **FIX**: added `XCECLI_FAILOVER_CALL_COUNT` (client_internal.h) — only enters the retry/classify loop when the raw EXPR result is NEGATIVE; any non-negative value (0 or a row count of ANY size) is unconditional success, never fed to the magnitude classifier. Switched the 5 count-returning call sites in client.c to it. Left `xce_failover_classify` and the other 14 `XCECLI_FAILOVER_CALL` call sites (which genuinely follow the 0/status convention) untouched — confirmed via `test_libxce_retry.c`'s existing StatusClassifier taxonomy tests, still green. controller_unit_test 926/0/0, xcelib_test 293/0/0. Verification: fresh 40-round soak (`xce-test-ha-40-v4`) — see below for outcome once confirmed. + +## Do-Not-Repeat (2026-07-12, bug-1436) — a retry/failover classifier that inspects a raw return value's MAGNITUDE is only safe if EVERY call site's success convention is uniform; a count-returning success value is a landmine +When a generic retry/failover wrapper (here `XCECLI_FAILOVER_CALL` → `xce_failover_classify`) decides retriable-vs-terminal by comparing the wrapped call's raw return value against known error-code magnitudes, it is implicitly assuming EVERY caller follows the SAME "0/negative = status" convention. A single outlier call site whose SUCCESS value is a variable, unbounded quantity (a row/byte/item COUNT, a sequence number, anything that legitimately grows without bound) is a landmine: it will almost always pass through by luck, and then fail in a way that looks like a rare, mysterious transport race exactly when the count happens to numerically collide with a recognized error magnitude — which for small POSIX errno values (ECONNRESET=104, ETIMEDOUT=110, ECONNREFUSED=111) is entirely plausible for ordinary list/count sizes seen in production. **Do-not-repeat**: before wrapping ANY call in a shared retry/classify macro, verify its ACTUAL success-value convention (grep the real implementation, not just the header doc comment) — "returns 0 on success" and "returns >=0 on success (a count)" look identical at a single call site with a small test fixture but diverge catastrophically once the count crosses into three-digit territory. Also: **a synthetic repro harness that holds a size/count parameter FIXED for its whole run cannot reproduce a bug that requires that value to pass through one exact number** — when two well-designed high-volume repro attempts (7000+ calls combined) come back clean against a bug the real system hits reliably, treat "the repro parameter never varies through the danger zone" as a live hypothesis, not just "try more volume." + +## bug-1435 FIXED (2026-07-12) — raft_state_t is unprotected against concurrent pool-dispatched vote-reply processing; a promoted PRIMARY can silently self-revert to STANDBY mid-election with no further trigger +Post-failover `expect-job`/`joblist` calls got a genuine, persistent `-XCE_ERR_STANDBY` (10014) from the client's OWN just-confirmed primary (`wait-primary` had verified it moments earlier). Ruled out EVERY client-side theory first (this took most of the investigation and is the reusable lesson): `ha_dispatch_gate`'s `CTRL_PRIMARY` branch structurally cannot return STANDBY for `OPCode_get` (read the whole switch — confirmed only `CTRL_STANDBY: default:` returns it), so the answering node's `ha->role` was GENUINELY `CTRL_STANDBY` — this was never a libxce failover/retry-budget/stale-reply/cur_master-cursor bug (`XCECLI_FAILOVER_CALL`'s RETRY_NOW classification for `E_XCE_STANDBY` with `max_retries=20` and zero backoff working exactly as designed; final rc staying `-E_XCE_STANDBY` on exhaustion is DOCUMENTED behavior, not evidence of a broken loop). The missing "xcecli failover: attempt N" INFO logs (zero matches across a 40-round run) is a RED HERRING explained by `wait-primary`'s own `xcecli_ctrlstatus_primary` doing a SEPARATE, silent redirect-follow loop that never touches the shared `xcecli_retry_next` logging path — don't chase an absent log line as a clue without first confirming which code path is actually supposed to emit it. REAL mechanism: raft-drive-async's `peer_ctrl_dispatch_to_pool` (ha.c, `VTASK_LIVENESS`, default ON via `g_drive_async_peerctrl_dispatch_enabled=1`) dispatches each peer's message as an INDEPENDENT vtask onto the shared pool; its per-endpoint serialization (`bind_vtask`) only orders messages on the SAME endpoint — it does NOT serialize DIFFERENT peers' endpoints against each other. So two `RequestVoteReply`s from two different voters CAN run `raft_on_vote_reply(&ha->raft, ...)` CONCURRENTLY on two different pool workers, racing on `raft_state_t`'s PLAIN (non-atomic) `votes_granted`/`replies_received`/`election_decided` — one worker reaches quorum and fires `on_become_leader` (role→PRIMARY), the OTHER, racing on a pre-increment read, can independently satisfy the library's "all replied, no quorum" branch and fire `on_become_follower` (role→STANDBY) for the SAME term an instant later, with NOTHING ever correcting it back — every subsequent request then correctly, faithfully gets rejected as STANDBY forever. Needed ~36 rounds to surface (narrow, load-dependent overlap window). **FIX**: added `ha->raft_lock` (new dedicated `pthread_mutex_t`, ha.h/ha.c) serializing every mutating/reading raft_state_t entry point on the ELECTION/VOTE path (`raft_on_vote_reply`, `raft_on_vote_request`, `raft_on_pre_vote_request`, `raft_on_pre_vote_reply`, `raft_begin_pre_vote`, `raft_start_election`, `raft_check_and_start_election` x3, `raft_on_election_timeout`, `raft_on_higher_term_observed` x2 — 12 call sites across ha.c + cluster.c). **MUST be PTHREAD_MUTEX_RECURSIVE, not plain**: `raft_on_pre_vote_reply`'s WON branch synchronously calls `ha_enter_real_election → ha_start_election_async → raft_start_election` on the SAME thread within one call chain — a plain mutex self-deadlocks on that legitimate nesting (same class as the precedent bug-652 ha->lock self-deadlock-on-synchronous-re-entry). Deliberately did NOT touch the AE/commit-replication path (`raft_log_append`/`raft_on_append_entries_reply`/`raft_advance_commit`) — `ha_primary_log_append→raft_log_append` is ALSO reachable from concurrent client-write vtasks with no visible lock (persist.c's `persist_wal_sync_append` calls it before acquiring `p->lock`), a plausible SEPARATE, analogous concurrency gap, but out of scope for this bug's demonstrated mechanism and higher regression risk to touch under time pressure — flagged as a follow-up, not silently dropped. Verified no ABBA: grepped+read every existing `ha->lock`-held critical section (9 sites) and confirmed none call into any `raft_*` function, so lock order is always `raft_lock`-then-`ha->lock`, never reversed. **Do-not-repeat**: when a callback-invoking library assumes single-threaded/serialized calling (the Raft "single event-loop" model is a classic example) and a later "drive it async on a thread pool" feature is bolted on (raft-drive-async here), the CONVERSION must include a lock around the library's own internal state, not just per-endpoint delivery-ordering (`bind_vtask`) — per-endpoint serialization silently does NOT imply serialization of the shared struct across different endpoints/peers. This is a whole CLASS of bug (bug-1197 UAF, bug-1198 admission-gating, bug-1417 index-mapping, and now bug-1435 unsynchronized state) that all trace back to the same raft-drive-async conversion — audit any OTHER shared struct the async-dispatched callbacks touch before declaring that conversion complete. CONFIDENCE: high on mechanism (every original-investigation fact is fully explained, zero residual unexplained facts), but NOT live-reproduced under a debugger in this session (timing-rare race) — a well-evidenced static diagnosis, not a repro-confirmed one; said so explicitly rather than overclaiming certainty. diff --git a/.wolf/hooks/_session.json b/.wolf/hooks/_session.json index 6bda583..a597499 100644 --- a/.wolf/hooks/_session.json +++ b/.wolf/hooks/_session.json @@ -1,21 +1,12 @@ { - "session_id": "session-2026-07-11-0654", - "started": "2026-07-11T13:54:32.676Z", + "session_id": "session-2026-07-13-0012", + "started": "2026-07-13T07:12:53.464Z", "files_read": {}, - "files_written": [ - { - "file": "/home/rshen/projects/xce/worktrees/raft_tla/.kiro/specs/ha-elect-ctx-lifecycle/tasks.md", - "action": "edit", - "tokens": 117, - "at": "2026-07-11T13:58:37.453Z" - } - ], - "edit_counts": { - ".kiro/specs/ha-elect-ctx-lifecycle/tasks.md": 1 - }, + "files_written": [], + "edit_counts": {}, "anatomy_hits": 0, "anatomy_misses": 0, "repeated_reads_warned": 0, "cerebrum_warnings": 0, - "stop_count": 3 + "stop_count": 1 } \ No newline at end of file diff --git a/.wolf/memory.md b/.wolf/memory.md index 17ec3d6..c44fa72 100644 --- a/.wolf/memory.md +++ b/.wolf/memory.md @@ -4440,3 +4440,55 @@ | 06:58 | Edited .kiro/specs/ha-elect-ctx-lifecycle/tasks.md | 5→5 lines | ~109 | | 06:58 | Session end: 1 writes across 1 files (tasks.md) | 0 reads | ~117 tok | | 21:23 | Session end: 1 writes across 1 files (tasks.md) | 0 reads | ~117 tok | +| 21:26 | Session end: 1 writes across 1 files (tasks.md) | 0 reads | ~117 tok | +| 21:28 | Session end: 1 writes across 1 files (tasks.md) | 0 reads | ~117 tok | +| 21:31 | Session end: 1 writes across 1 files (tasks.md) | 1 reads | ~117 tok | +| 21:50 | Session end: 1 writes across 1 files (tasks.md) | 4 reads | ~19790 tok | +| 02:49 | Session end: 1 writes across 1 files (tasks.md) | 4 reads | ~19790 tok | +| 03:08 | Edited src/controller/ha.h | modified 1435() | ~533 | +| 03:08 | Edited src/controller/ha.c | 1→4 lines | ~66 | +| 03:08 | Edited src/controller/ha.c | 2→3 lines | ~32 | +| 03:09 | Edited src/controller/ha.c | expanded (+18 lines) | ~400 | +| 03:09 | Edited src/controller/ha.c | 8→12 lines | ~96 | +| 03:09 | Edited src/controller/ha.c | modified raft_election_start_vtask_entry() | ~104 | +| 03:09 | Edited src/controller/ha.c | 18→22 lines | ~192 | +| 03:10 | Edited src/controller/ha.c | 3→8 lines | ~142 | +| 03:10 | Edited src/controller/ha.c | 4→8 lines | ~143 | +| 03:11 | Edited src/controller/ha.c | expanded (+13 lines) | ~276 | +| 03:11 | Edited src/controller/ha.h | modified PTHREAD_MUTEX_RECURSIVE() | ~153 | +| 03:12 | Edited src/controller/ha.c | 3→8 lines | ~125 | +| 03:12 | Edited src/controller/ha.c | modified pre_vote_reply_dispatch() | ~179 | +| 03:13 | Edited src/controller/ha.c | expanded (+7 lines) | ~147 | +| 03:13 | Edited src/controller/cluster.c | modified if() | ~200 | +| 03:14 | Edited src/controller/cluster.c | expanded (+6 lines) | ~187 | +| 03:19 | bug-1435 FIXED: raft_state_t data race (concurrent pool-dispatched vote-reply processing flips PRIMARY back to STANDBY mid-election) — added ha->raft_lock (RECURSIVE mutex) around 12 raft_state_t entry points in ha.c/cluster.c; build clean, controller_unit_test Ok:1 Fail:0; buglog.json + cerebrum.md updated | src/controller/ha.c, ha.h, cluster.c, .wolf/buglog.json, .wolf/cerebrum.md | done, not yet live-soaked | ~28000 | +| 03:21 | Session end: 17 writes across 4 files (tasks.md, ha.h, ha.c, cluster.c) | 12 reads | ~277854 tok | +| 03:57 | Session end: 17 writes across 4 files (tasks.md, ha.h, ha.c, cluster.c) | 13 reads | ~277854 tok | +| 07:14 | Session end: 17 writes across 4 files (tasks.md, ha.h, ha.c, cluster.c) | 13 reads | ~277854 tok | +| 07:43 | Edited .claude/skills/xce-test-ha/run-ha-soak.sh | modified log() | ~707 | +| 07:43 | Edited .claude/skills/xce-test-ha/run-ha-soak.sh | 4→4 lines | ~45 | +| 07:43 | Edited .claude/skills/xce-test-ha/run-ha-soak.sh | inline fix | ~14 | +| 07:43 | Edited .claude/skills/xce-test-ha/run-ha-soak.sh | 2→2 lines | ~36 | +| 07:43 | Edited .claude/skills/xce-test-ha/run-ha-soak.sh | 5→6 lines | ~121 | +| 07:45 | bug-1436 root-caused via controller-log archaeology: NOT a product bug — run-ha-soak.sh's unscoped pgrep/pkill let a second concurrent soak invocation SIGKILL the first run's live primary right after wait-primary confirmed it | .claude/skills/xce-test-ha/run-ha-soak.sh, .wolf/buglog.json, .wolf/cerebrum.md | fixed: scoped all process matches to --workdir | ~large | +| 07:58 | Session end: 22 writes across 5 files (tasks.md, ha.h, ha.c, cluster.c, run-ha-soak.sh) | 23 reads | ~308403 tok | +| 08:10 | Session end: 22 writes across 5 files (tasks.md, ha.h, ha.c, cluster.c, run-ha-soak.sh) | 23 reads | ~308403 tok | +| 08:40 | Created ../../../../../../tmp/claude-1000/-home-rshen-projects-xce-worktrees-raft-tla/00c9b3f1-df3c-4ce0-a997-5c6a316be4ec/scratchpad/hammer.sh | — | ~570 | +| 08:41 | Created ../../../../../../tmp/claude-1000/-home-rshen-projects-xce-worktrees-raft-tla/00c9b3f1-df3c-4ce0-a997-5c6a316be4ec/scratchpad/hammer2.sh | — | ~807 | +| 08:51 | Created ../../../../../../tmp/claude-1000/-home-rshen-projects-xce-worktrees-raft-tla/00c9b3f1-df3c-4ce0-a997-5c6a316be4ec/scratchpad/hammer3.sh | — | ~975 | +| 09:21 | Edited src/lib/client_internal.h | expanded (+55 lines) | ~1057 | +| 09:21 | Edited src/lib/client.c | 2→3 lines | ~59 | +| 09:21 | Edited src/lib/client.c | 2→3 lines | ~62 | +| 09:21 | Edited src/lib/client.c | expanded (+6 lines) | ~152 | +| 09:21 | Edited src/lib/client.c | 2→3 lines | ~62 | +| 09:22 | Edited src/lib/client.c | 3→8 lines | ~134 | +| 09:46 | Session end: 31 writes across 10 files (tasks.md, ha.h, ha.c, cluster.c, run-ha-soak.sh) | 26 reads | ~321152 tok | +| 09:46 | Session end: 31 writes across 10 files (tasks.md, ha.h, ha.c, cluster.c, run-ha-soak.sh) | 26 reads | ~321152 tok | +| 09:47 | Created ../../../../../../tmp/claude-1000/-home-rshen-projects-xce-worktrees-raft-tla/00c9b3f1-df3c-4ce0-a997-5c6a316be4ec/scratchpad/run-chaotic-soak.sh | — | ~61 | +| 17:01 | 40-round CHAOTIC /xce-test-ha soak vs bug-1435/1436 fixed binary (xce_controller+xce_test) — VERDICT rounds=40 jobs=123 committed_divergence=0 committed_job_loss=0 excluded_bug854=0 excluded_bug924=0 result=PASS; all 3 nodes served primary (13/14/13); no ASAN/crash/abort in ctrl-{1,2,3}.log/.stderr | .wolf/memory.md | regression validation clean, bug-1435/1436 fixes confirmed | ~1200 | +| 10:01 | Session end: 32 writes across 11 files (tasks.md, ha.h, ha.c, cluster.c, run-ha-soak.sh) | 26 reads | ~321218 tok | + +## Session: 2026-07-13 00:12 + +| Time | Action | File(s) | Outcome | ~Tokens | +|------|--------|---------|---------|--------| diff --git a/.wolf/token-ledger.json b/.wolf/token-ledger.json index b33c51a..aaa81a5 100644 --- a/.wolf/token-ledger.json +++ b/.wolf/token-ledger.json @@ -2,14 +2,14 @@ "version": 1, "created_at": "2026-05-21T04:35:43.577Z", "lifetime": { - "total_tokens_estimated": 182288650, - "total_reads": 23627, - "total_writes": 38783, - "total_sessions": 219, - "anatomy_hits": 15172, - "anatomy_misses": 7762, - "repeated_reads_blocked": 74037, - "estimated_savings_vs_bare_cli": 1802228740 + "total_tokens_estimated": 184742471, + "total_reads": 23798, + "total_writes": 38977, + "total_sessions": 220, + "anatomy_hits": 15245, + "anatomy_misses": 7860, + "repeated_reads_blocked": 74352, + "estimated_savings_vs_bare_cli": 1820592512 }, "sessions": [ { @@ -353251,6 +353251,2221 @@ "repeated_reads_blocked": 0, "anatomy_lookups": 0 } + }, + { + "id": "session-2026-07-11-0654", + "started": "2026-07-11T13:54:32.676Z", + "ended": "2026-07-12T04:26:03.070Z", + "reads": [], + "writes": [ + { + "file": 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