[TAJO-523] ExecuttionBlock hangs

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Cannot Reproduce
• Affects Version/s: 0.8.0
• Component/s: distributed query plan
• Assignee: Unassigned
• Reporter: Min Zhou
• Created: 20/Jan/14 00:11
• Updated: 14/Sep/14 13:35
• Resolved: 14/Sep/14 13:35

Description

Run select count(1) from supplier the second time, an execution block eb_1390174658728_0006_000002 hung, and the client stuck at 14%.

Here is the log

2014-01-19 23:58:30,745 INFO  querymaster.SubQuery (SubQuery.java:getNonLeafTaskNum(688)) - Table's volume is approximately 1 MB
2014-01-19 23:58:30,745 INFO  querymaster.SubQuery (SubQuery.java:getNonLeafTaskNum(691)) - The determined number of non-leaf tasks is 1
2014-01-19 23:58:30,744 INFO  master.ContainerProxy (TajoContainerProxy.java:stopContainer(114)) - Release TajoWorker Resource: eb_1390174658728_0006_000001,container_1390174658728_0006_01_000041, state:RUNNING
2014-01-19 23:58:30,747 INFO  querymaster.SubQuery (SubQuery.java:transition(518)) - 1 objects are scheduled
2014-01-19 23:58:30,747 INFO  master.DefaultTaskScheduler (DefaultTaskScheduler.java:start(88)) - Start TaskScheduler
2014-01-19 23:58:30,748 INFO  querymaster.SubQuery (SubQuery.java:allocateContainers(733)) - Request Container for eb_1390174658728_0006_000002 containers=1
2014-01-19 23:58:30,748 INFO  querymaster.Query (Query.java:transition(311)) - Scheduling SubQuery:eb_1390174658728_0006_000002
2014-01-19 23:58:30,749 INFO  worker.TajoResourceAllocator (TajoResourceAllocator.java:run(231)) - Start TajoWorkerAllocationThread
2014-01-19 23:58:30,792 INFO  worker.TajoResourceAllocator (TajoResourceAllocator.java:run(348)) - Stop TajoWorkerAllocationThread
2014-01-19 23:58:30,792 INFO  querymaster.SubQuery (SubQuery.java:transition(848)) - SubQuery (eb_1390174658728_0006_000002) has 1 containers!
2014-01-19 23:58:30,820 INFO  master.ContainerProxy (TajoContainerProxy.java:launch(61)) - Launched Container:eb_1390174658728_0006_000002,44,container_1390174658728_0006_01_000044,esv4-hcl284.grid.linkedin.com:28091, pullServer=34396
2014-01-19 23:58:30,820 INFO  worker.TajoResourceAllocator (TajoResourceAllocator.java:run(190)) - ContainerProxy started:container_1390174658728_0006_01_000044

Issue Links

• is related to: TAJO-522 OutOfMemoryError: unable to create new native thread