Arup Malakar created HCATALOG-541:
-------------------------------------
Summary: The meta store client throws TimeOut exception if ~1000
clients are trying to call listPartition on the server
Key: HCATALOG-541
URL: https://issues.apache.org/jira/browse/HCATALOG-541
Project: HCatalog
Issue Type: Improvement
Environment: Hadoop 0.23.4
Hcatalog 0.4
Oracle
Reporter: Arup Malakar
Error on the client:
{code}
2012-10-24 21:44:03,942 INFO [pool-12-thread-2]
org.apache.hcatalog.hcatmix.load.tasks.Task: Error listing partitions
org.apache.thrift.transport.TTransportException:
java.net.SocketTimeoutException: Read timed out
at
org.apache.thrift.transport.TIOStreamTransport.read(TIOStreamTransport.java:129)
at org.apache.thrift.transport.TTransport.readAll(TTransport.java:84)
at
org.apache.thrift.transport.TSaslTransport.readLength(TSaslTransport.java:345)
at
org.apache.thrift.transport.TSaslTransport.readFrame(TSaslTransport.java:422)
at
org.apache.thrift.transport.TSaslTransport.read(TSaslTransport.java:404)
at
org.apache.thrift.transport.TSaslClientTransport.read(TSaslClientTransport.java:37)
at org.apache.thrift.transport.TTransport.readAll(TTransport.java:84)
at
org.apache.hadoop.hive.thrift.TFilterTransport.readAll(TFilterTransport.java:62)
at
org.apache.thrift.protocol.TBinaryProtocol.readAll(TBinaryProtocol.java:378)
at
org.apache.thrift.protocol.TBinaryProtocol.readI32(TBinaryProtocol.java:297)
at
org.apache.thrift.protocol.TBinaryProtocol.readMessageBegin(TBinaryProtocol.java:204)
at org.apache.thrift.TServiceClient.receiveBase(TServiceClient.java:69)
at
org.apache.hadoop.hive.metastore.api.ThriftHiveMetastore$Client.recv_get_partitions(ThriftHiveMetastore.java:1208)
at
org.apache.hadoop.hive.metastore.api.ThriftHiveMetastore$Client.get_partitions(ThriftHiveMetastore.java:1193)
at
org.apache.hadoop.hive.metastore.HiveMetaStoreClient.listPartitions(HiveMetaStoreClient.java:631)
at
org.apache.hcatalog.hcatmix.load.tasks.HCatListPartitionTask.doTask(HCatListPartitionTask.java:45)
at
org.apache.hcatalog.hcatmix.load.TaskExecutor.call(TaskExecutor.java:79)
at
org.apache.hcatalog.hcatmix.load.TaskExecutor.call(TaskExecutor.java:39)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:619)
Caused by: java.net.SocketTimeoutException: Read timed out
at java.net.SocketInputStream.socketRead0(Native Method)
at java.net.SocketInputStream.read(SocketInputStream.java:129)
at
org.apache.thrift.transport.TIOStreamTransport.read(TIOStreamTransport.java:127)
{code}
Error on the server:
{code}
Exception in thread "pool-1-thread-3206" java.lang.OutOfMemoryError: unable to
create new native thread
at java.lang.Thread.start0(Native Method)
at java.lang.Thread.start(Thread.java:597)
at org.datanucleus.store.query.Query.performExecuteTask(Query.java:1891)
at
org.datanucleus.store.rdbms.query.JDOQLQuery.performExecute(JDOQLQuery.java:613)
at org.datanucleus.store.query.Query.executeQuery(Query.java:1692)
at org.datanucleus.store.query.Query.executeWithArray(Query.java:1527)
at org.datanucleus.jdo.JDOQuery.execute(JDOQuery.java:266)
at
org.apache.hadoop.hive.metastore.ObjectStore.listMPartitions(ObjectStore.java:1521)
at
org.apache.hadoop.hive.metastore.ObjectStore.getPartitions(ObjectStore.java:1268)
at sun.reflect.GeneratedMethodAccessor12.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org.apache.hadoop.hive.metastore.RetryingRawStore.invoke(RetryingRawStore.java:111)
at $Proxy7.getPartitions(Unknown Source)
at
org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.get_partitions(HiveMetaStore.java:1468)
at
org.apache.hadoop.hive.metastore.api.ThriftHiveMetastore$Processor$get_partitions.getResult(ThriftHiveMetastore.java:5318)
at
org.apache.hadoop.hive.metastore.api.ThriftHiveMetastore$Processor$get_partitions.getResult(ThriftHiveMetastore.java:5306)
at org.apache.thrift.ProcessFunction.process(ProcessFunction.java:32)
at org.apache.thrift.TBaseProcessor.process(TBaseProcessor.java:34)
at
org.apache.hadoop.hive.thrift.HadoopThriftAuthBridge20S$Server$TUGIAssumingProcessor$1.run(HadoopThriftAuthBridge20S.java:555)
at
org.apache.hadoop.hive.thrift.HadoopThriftAuthBridge20S$Server$TUGIAssumingProcessor$1.run(HadoopThriftAuthBridge20S.java:552)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:396)
at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1212)
at
org.apache.hadoop.hive.thrift.HadoopThriftAuthBridge20S$Server$TUGIAssumingProcessor.process(HadoopThriftAuthBridge20S.java:552)
at
org.apache.thrift.server.TThreadPoolServer$WorkerProcess.run_aroundBody0(TThreadPoolServer.java:176)
at
org.apache.thrift.server.TThreadPoolServer$WorkerProcess.run_aroundBody1$advice(TThreadPoolServer.java:101)
at
org.apache.thrift.server.TThreadPoolServer$WorkerProcess.run(TThreadPoolServer.java:1)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:619)
{code}
The graph for concurrent usage of list partition can be seen here:
https://cwiki.apache.org/confluence/download/attachments/30740331/hcatmix_list_partition_loadtest_25min.html
The table has 2000 partitions.
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