Matteo Bertozzi created HBASE-15746: ---------------------------------------
Summary: RegionCoprocessor preClose() called 3 times Key: HBASE-15746 URL: https://issues.apache.org/jira/browse/HBASE-15746 Project: HBase Issue Type: Bug Components: Coprocessors, regionserver Affects Versions: 0.98.19, 1.1.4, 1.2.1, 2.0.0, 1.3.0 Reporter: Matteo Bertozzi Priority: Minor The preClose() region coprocessor call gets called 3 times via rpc. The first one is when we receive the RPC https://github.com/apache/hbase/blob/master/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/RSRpcServices.java#L1329 The second time is when ask the RS to close the region https://github.com/apache/hbase/blob/master/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegionServer.java#L2852 The third time is when the doClose() on the region is executed. https://github.com/apache/hbase/blob/master/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegion.java#L1419 I'm pretty sure the first one can be removed since, there is no code between that and the second call. and they are a copy-paste. The second one explicitly says that is to enforce ACLs before starting the operation, which leads me to the fact that the 3rd one in the region gets executed too late in the process. but the region.close() may be called by someone other than the RS, so we should probably leave the preClose() in there (e.g. OpenRegionHandler on failure cleanup). any idea? -- This message was sent by Atlassian JIRA (v6.3.4#6332)