supratimdeka commented on a change in pull request #1319: HDDS-1981: Datanode
should sync db when container is moved to CLOSED or QUASI_CLOSED state
URL: https://github.com/apache/hadoop/pull/1319#discussion_r316138954
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File path:
hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/keyvalue/KeyValueContainer.java
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@@ -318,6 +326,8 @@ public void close() throws StorageContainerException {
// It is ok if this operation takes a bit of time.
// Close container is not expected to be instantaneous.
compactDB();
+ // We must sync the DB after close operation
+ flushAndSyncDB();
Review comment:
updateContainerData takes care to revert the state of the container in case
of failure.
Won't that be a problem with flushDB? If flush fails, don't we want the
container to remain Open?
Also, related question : what should be the relative order - sync first and
then change state to close, both with the writeLock held
Same question applies to quasiClose as well.
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