Samarth Jain created PHOENIX-4041:
-------------------------------------
Summary: CoprocessorHConnectionTableFactory should not open a new
HConnection when shutting down
Key: PHOENIX-4041
URL: https://issues.apache.org/jira/browse/PHOENIX-4041
Project: Phoenix
Issue Type: Bug
Reporter: Samarth Jain
It is wasteful to possibly establish a new HConnection when the
CoprocessorHConnectionTableFactory is shutting down.
{code}
@Override
public void shutdown() {
try {
getConnection(conf).close();
} catch (IOException e) {
LOG.error("Exception caught while trying to close the
HConnection used by CoprocessorHConnectionTableFactory");
}
}
{code}
In fact, in one of the test runs I saw that the region server aborted when
getConnection() call in shutDown() ran into an OOM.
{code}
org.apache.hadoop.hbase.regionserver.HRegionServer(1950): ABORTING region
server asf921.gq1.ygridcore.net,43200,1500441052416: Caught throwable while
processing event M_RS_CLOSE_REGION
java.lang.RuntimeException: java.lang.OutOfMemoryError: unable to create new
native thread
at
org.apache.hadoop.hbase.regionserver.handler.CloseRegionHandler.process(CloseRegionHandler.java:165)
at
org.apache.hadoop.hbase.executor.EventHandler.run(EventHandler.java:129)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.OutOfMemoryError: unable to create new native thread
at java.lang.Thread.start0(Native Method)
at java.lang.Thread.start(Thread.java:714)
at org.apache.zookeeper.ClientCnxn.start(ClientCnxn.java:406)
at org.apache.zookeeper.ZooKeeper.<init>(ZooKeeper.java:450)
at org.apache.zookeeper.ZooKeeper.<init>(ZooKeeper.java:380)
at
org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper.checkZk(RecoverableZooKeeper.java:141)
at
org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper.<init>(RecoverableZooKeeper.java:128)
at org.apache.hadoop.hbase.zookeeper.ZKUtil.connect(ZKUtil.java:135)
at
org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher.<init>(ZooKeeperWatcher.java:171)
at
org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher.<init>(ZooKeeperWatcher.java:145)
at
org.apache.hadoop.hbase.client.ZooKeeperKeepAliveConnection.<init>(ZooKeeperKeepAliveConnection.java:43)
at
org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.getKeepAliveZooKeeperWatcher(HConnectionManager.java:1872)
at
org.apache.hadoop.hbase.client.ZooKeeperRegistry.getClusterId(ZooKeeperRegistry.java:82)
at
org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.retrieveClusterId(HConnectionManager.java:926)
at
org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.<init>(HConnectionManager.java:711)
at
org.apache.hadoop.hbase.client.CoprocessorHConnection.<init>(CoprocessorHConnection.java:113)
at
org.apache.phoenix.hbase.index.write.IndexWriterUtils$CoprocessorHConnectionTableFactory.getConnection(IndexWriterUtils.java:124)
at
org.apache.phoenix.hbase.index.write.IndexWriterUtils$CoprocessorHConnectionTableFactory.shutdown(IndexWriterUtils.java:137)
at
org.apache.phoenix.hbase.index.write.ParallelWriterIndexCommitter.stop(ParallelWriterIndexCommitter.java:228)
at
org.apache.phoenix.hbase.index.write.IndexWriter.stop(IndexWriter.java:225)
at org.apache.phoenix.hbase.index.Indexer.stop(Indexer.java:222)
at
org.apache.hadoop.hbase.coprocessor.CoprocessorHost$Environment.shutdown(CoprocessorHost.java:755)
at
org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost$RegionEnvironment.shutdown(RegionCoprocessorHost.java:148)
at
org.apache.hadoop.hbase.coprocessor.CoprocessorHost.shutdown(CoprocessorHost.java:318)
at
org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost$5.postEnvCall(RegionCoprocessorHost.java:518)
at
org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost.execOperation(RegionCoprocessorHost.java:1746)
at
org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost.postClose(RegionCoprocessorHost.java:511)
at
org.apache.hadoop.hbase.regionserver.HRegion.doClose(HRegion.java:1280)
at org.apache.hadoop.hbase.regionserver.HRegion.close(HRegion.java:1141)
at
org.apache.hadoop.hbase.regionserver.handler.CloseRegionHandler.process(CloseRegionHandler.java:151)
{code}
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