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[opt] add defensive code in PalfHandleImpl::disable_vote

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This commit is contained in:
BinChenn
2023-08-17 12:26:46 +00:00
committed by ob-robot
parent ddbb83148a
commit d78e7ce778
2 changed files with 20 additions and 2 deletions
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16
src/logservice/palf/palf_handle_impl.cpp
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@ -1621,14 +1621,26 @@ int PalfHandleImpl::disable_vote(const bool need_check_log_missing)
//step 1: check vote status.
bool vote_disabled = false;
do {
common::ObMemberList memberlist;
int64_t replica_num = 0;
AccessMode access_mode;
RLockGuard guard(lock_);
if (!state_mgr_.is_allow_vote()) {
if (OB_FAIL(config_mgr_.get_curr_member_list(memberlist, replica_num))) {
PALF_LOG(WARN, "get_curr_member_list failed", KPC(this));
} else if (OB_FAIL(mode_mgr_.get_access_mode(access_mode))) {
PALF_LOG(WARN, "get_access_mode failed", K(ret), KPC(this));
} else if (state_mgr_.is_leader_active() &&
(1 == replica_num || AccessMode::APPEND == access_mode)) {
ret = OB_ERR_UNEXPECTED;
PALF_LOG(ERROR, "can not disable_vote in leader", KPC(this),
K(memberlist), K(replica_num), K(access_mode));
} else if (!state_mgr_.is_allow_vote()) {
PALF_LOG(INFO, "vote has already been disabled", KPC(this));
vote_disabled = true;
}
} while(0);
if (!vote_disabled) {
if (OB_SUCC(ret) && !vote_disabled) {
if (OB_FAIL(election_.add_inner_priority_seed_bit(new_election_inner_priority_seed)) && OB_ENTRY_EXIST != ret) {
// Because this interface is idempotent, so we need ignore err code OB_ENTRY_EXIST.
PALF_LOG(WARN, "election add_inner_priority_seed_bit for rebuild failed", KPC(this));