lokeshj1703 commented on a change in pull request #1072: HDDS-1766.
ContainerStateMachine is unable to increment lastAppliedTermIndex. Contributed
by Mukul Kumar Singh.
URL: https://github.com/apache/hadoop/pull/1072#discussion_r302098470
##########
File path:
hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/common/transport/server/ratis/ContainerStateMachine.java
##########
@@ -554,12 +556,12 @@ private ByteString getCachedStateMachineData(Long
logIndex, long term,
}
} catch (Exception e) {
metrics.incNumReadStateMachineFails();
- LOG.error("unable to read stateMachineData:" + e);
+ LOG.error("{} unable to read stateMachineData:", gid, e);
return completeExceptionally(e);
}
}
- private void updateLastApplied() {
+ private synchronized void updateLastApplied() {
Review comment:
@mukul1987 Thanks for working on this! The patch looks good to me.
I think we can avoid using synchronized by using a concurrent sorted map.
Each applyTransaction removes its corresponding entry from the map and we
update lastApplied based on the first entry in the map?
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