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!1762 [bugfix] 修复host_standby=off/wal_level=archive场景下failover/switchover出现tuple concurrently updated的问题

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Merge pull request !1762 from 周斌/gsc_hoststandby
This commit is contained in:
opengauss-bot
2022-05-26 01:31:22 +00:00
committed by Gitee
parent b335ef9af7 572d99d03c
commit 1d7eadd778
1 changed files with 20 additions and 0 deletions
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20
src/common/backend/utils/cache/knl_globalsysdbcache.cpp vendored
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@ -659,7 +659,27 @@ void GlobalSysDBCache::InitSysCacheRelIds()
*/ */
void GlobalSysDBCache::RefreshHotStandby() void GlobalSysDBCache::RefreshHotStandby()
{ {
if (!EnableGlobalSysCache()) {
return;
}
hot_standby = (t_thrd.postmaster_cxt.HaShmData->current_mode != STANDBY_MODE || XLogStandbyInfoActive()); hot_standby = (t_thrd.postmaster_cxt.HaShmData->current_mode != STANDBY_MODE || XLogStandbyInfoActive());
if (hot_standby || !m_is_inited) {
return;
}
/* clean all */
for (int hash_index = 0; hash_index < m_nbuckets; hash_index ++) {
PthreadRWlockRdlock(LOCAL_SYSDB_RESOWNER, &m_db_locks[hash_index]);
for (Dlelem * elt = DLGetTail(m_bucket_list.GetBucket(hash_index)); elt != NULL;) {
GlobalSysDBCacheEntry *entry = (GlobalSysDBCacheEntry *)DLE_VAL(elt);
elt = DLGetPred(elt);
entry->ResetDBCache<true>();
}
PthreadRWlockUnlock(LOCAL_SYSDB_RESOWNER, &m_db_locks[hash_index]);
}
if (m_global_shared_db_entry != NULL) {
m_global_shared_db_entry->ResetDBCache<true>();
}
} }
void GlobalSysDBCache::Init(MemoryContext parent) void GlobalSysDBCache::Init(MemoryContext parent)