lei.chen/myxce
1
0
Fork 1
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

feat(ha): reference-counted ha_elect_ctx_t lifecycle (ha-elect-ctx-lifecycle)

Browse source 
Replace the deliberate election-carrier leak with an atomic refcount:
a bias reference held by ha->elect_ctx plus one reference per captured
vote endpoint, released via a new endpoint_t.on_fini teardown-completion
hook (fired once, before ep->data is freed). Both real-election and
PreVote capture sites (raft_cb_send_vote_request,
raft_cb_send_pre_vote_request) increment on capture; both publish sites
(ha_start_election_async, ha_start_prevote_async) now atomic_exchange
the outgoing carrier and release it instead of leaking or freeing
outright, so a still-outstanding vote endpoint keeps the superseded
carrier alive until its own teardown completes.

Verified: 758+ controller tests green, isolated LeakSanitizer run shows
zero ha_elect_ctx_t leaks across many election/PreVote rounds, no
premature-free/UAF under supersession, and a live 10-round HA soak
(36 jobs, zero loss, all 3 nodes served as primary).
This commit is contained in:
Rongsong Shen 2026-07-12 04:25:42 +00:00
parent 58e047f533
commit 6529dcf08f
14 changed files with 879 additions and 22 deletions
Download patch file Download diff file Expand all files Collapse all files

2
src/lib/testsuite/test.c
View file

@ -36,6 +36,7 @@ extern void test_cluster(void);
extern void test_cluster_parse(void);
extern void test_libxce_retry(void);
extern void test_netio_on_connected(void);
extern void test_netio_on_fini(void);
extern void test_netio_arm_failure(void);
extern void test_netio_close_propagation(void);
extern void test_netio_bounded_connect(void);
@ -149,6 +150,7 @@ int main(int argc, char* argv[])
TEST(test_cluster_parse);
TEST(test_libxce_retry);
TEST(test_netio_on_connected);
TEST(test_netio_on_fini);
TEST(test_netio_arm_failure);
TEST(test_netio_close_propagation);
TEST(test_netio_bounded_connect);