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add force freeze before medium

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This commit is contained in:
obdev
2022-12-30 12:08:12 +00:00
committed by ob-robot
parent 6447906ef3
commit 193d0cd143
3 changed files with 40 additions and 9 deletions
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31
src/storage/compaction/ob_partition_merge_policy.cpp
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@ -868,7 +868,8 @@ int ObPartitionMergePolicy::check_need_medium_merge(
storage::ObTablet &tablet,
const int64_t medium_snapshot,
bool &need_merge,
bool &can_merge)
bool &can_merge,
bool &need_force_freeze)
{
int ret = OB_SUCCESS;
need_merge = false;
@ -883,9 +884,31 @@ int ObPartitionMergePolicy::check_need_medium_merge(
need_merge = last_major->get_snapshot_version() < medium_snapshot;
if (need_merge
&& is_tablet_data_status_complete
&& tablet.get_tablet_meta().max_serialized_medium_scn_ >= medium_snapshot
&& ObTenantTabletScheduler::check_weak_read_ts_ready(medium_snapshot, ls)) {
can_merge = true;
can_merge = tablet.get_snapshot_version() >= medium_snapshot;
if (!can_merge) {
ObTabletMemtableMgr *memtable_mgr = nullptr;
ObTableHandleV2 memtable_handle;
memtable::ObMemtable *last_frozen_memtable = nullptr;
if (OB_ISNULL(memtable_mgr = static_cast<ObTabletMemtableMgr *>(tablet.get_memtable_mgr()))) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("memtable mgr is unexpected null", K(ret), K(tablet));
} else if (OB_FAIL(memtable_mgr->get_last_frozen_memtable(memtable_handle))) {
if (OB_ENTRY_NOT_EXIST == ret) { // no frozen memtable, need force freeze
need_force_freeze = true;
ret = OB_SUCCESS;
} else {
LOG_WARN("failed to get last frozen memtable", K(ret));
}
} else if (OB_FAIL(memtable_handle.get_data_memtable(last_frozen_memtable))) {
LOG_WARN("failed to get last frozen memtable", K(ret));
} else {
need_force_freeze = last_frozen_memtable->get_snapshot_version() < medium_snapshot;
if (!need_force_freeze) {
LOG_INFO("tablet no need force freeze", K(ret), K(tablet_id), K(medium_snapshot), KPC(last_frozen_memtable));
}
}
}
}
}
@ -894,7 +917,7 @@ int ObPartitionMergePolicy::check_need_medium_merge(
K(need_merge), K(can_merge), K(medium_snapshot), K(is_tablet_data_status_complete));
ADD_SUSPECT_INFO(MAJOR_MERGE, tablet.get_tablet_meta().ls_id_, tablet_id,
"need major merge but can't merge now",
K(medium_snapshot), K(is_tablet_data_status_complete),
K(medium_snapshot), K(is_tablet_data_status_complete), K(need_force_freeze),
"max_serialized_medium_scn", tablet.get_tablet_meta().max_serialized_medium_scn_);
}
return ret;