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Task #3259 (closed)

Opened 13 years ago

Closed 13 years ago

Bug: testng hangs and consumes CPU though controller is dead

Reported by:	jamoore	Owned by:
Priority:	critical	Milestone:	OMERO-Beta4.3
Component:	Performance	Version:	n.a.
Keywords:	n.a.	Cc:	ajpatterson
Resources:	n.a.	Referenced By:	n.a.
References:	n.a.	Remaining Time:	n.a.
Sprint:	n.a.

Description

A very odd testng process was found on Hudson consuming substantial resources:

top - 07:41:21 up 88 days, 15:08,  1 user,  load average: 1.07, 1.12, 1.21
Tasks: 197 total,   1 running, 196 sleeping,   0 stopped,   0 zombie
Cpu(s): 13.2%us,  0.2%sy,  0.0%ni, 86.6%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
Mem:  16432140k total, 14940524k used,  1491616k free,  1551380k buffers
Swap:  4008208k total,  1477428k used,  2530780k free,  6022284k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND                                                                                                
26872 hudson    20   0 1149m 288m 9380 S   97  1.8   5545:46 java 
...

though no job was running on hudson. The stack trace (attached) should execution in IceSSL.

At the moment, there will be little we can do to reproduce this, but we should watch for similar states.

References

Attachments (1)

jstack.26872 (39.1 KB) - added by jmoore 13 years ago.

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Change History (3)

Changed 13 years ago by jmoore

Attachment jstack.26872 added

comment:1 Changed 13 years ago by jmoore

The relevant thread:

23	"Thread-2" prio=10 tid=0x000000004103f000 nid=0x59c9 runnable [0x00002b3927b79000]
24	   java.lang.Thread.State: RUNNABLE
25	        at com.sun.net.ssl.internal.ssl.SSLEngineImpl.wrap(SSLEngineImpl.java:1047)
26	        at javax.net.ssl.SSLEngine.wrap(SSLEngine.java:452)
27	        at IceSSL.TransceiverI.writeNonBlocking(TransceiverI.java:537)
28	        at IceSSL.TransceiverI.write(TransceiverI.java:150)
29	        at Ice.ConnectionI.sendMessage(ConnectionI.java:1757)
30	        at Ice.ConnectionI.initiateShutdown(ConnectionI.java:1519)
31	        at Ice.ConnectionI.setState(ConnectionI.java:1488)
32	        at Ice.ConnectionI.setState(ConnectionI.java:1351)
33	        at Ice.ConnectionI.destroy(ConnectionI.java:149)
34	        - locked <0x00002b38eaafd9f8> (a Ice.ConnectionI)
35	        at IceInternal.OutgoingConnectionFactory.destroy(OutgoingConnectionFactory.java:37)
36	        - locked <0x00002b38eab50d70> (a IceInternal.OutgoingConnectionFactory)
37	        at IceInternal.Instance.destroy(Instance.java:895)
38	        at Ice.CommunicatorI.destroy(CommunicatorI.java:17)
39	        at omero.client.closeSession(client.java:829)
40	        at omero.client.__del__(client.java:431)
41	        at omero.client$1.run(client.java:92)

comment:2 Changed 13 years ago by jmoore

Milestone changed from Unscheduled to OMERO-Beta4.3
Resolution set to worksforme
Status changed from new to closed

Closing as we haven't seen this again. As the ticket mentions, we should watch for it occuring again, in which case this ticket may become useful.

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