neuyilan commented on a change in pull request #2635:
URL: https://github.com/apache/iotdb/pull/2635#discussion_r571512990
##########
File path:
cluster/src/main/java/org/apache/iotdb/cluster/metadata/CMManager.java
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@@ -623,13 +648,16 @@ public void setCoordinator(Coordinator coordinator) {
result = SyncClientAdaptor
.getUnregisteredMeasurements(client, partitionGroup.getHeader(),
seriesList);
} else {
- SyncDataClient syncDataClient =
- metaGroupMember.getClientProvider().getSyncDataClient(node,
- RaftServer.getReadOperationTimeoutMS());
- result =
syncDataClient.getUnregisteredTimeseries(partitionGroup.getHeader(),
seriesList);
- ClientUtils.putBackSyncClient(syncDataClient);
+ SyncDataClient syncDataClient = null;
+ try {
+ syncDataClient =
metaGroupMember.getClientProvider().getSyncDataClient(node,
+ RaftServer.getReadOperationTimeoutMS());
+ result = syncDataClient
+ .getUnregisteredTimeseries(partitionGroup.getHeader(),
seriesList);
+ } finally {
+ ClientUtils.putBackSyncClient(syncDataClient);
Review comment:
null client value can not be put back to the client pool, this is
guaranteed in function putBackSyncClient in ClientUtils,
if the client is null, the two if in the judgment condition is not tenable,
so it will not be put back.
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