10:12 a.m.
[
https://issues.jboss.org/browse/ISPN-1838?page=com.atlassian.jira.plugin....
]
RH Bugzilla Integration commented on ISPN-1838:
-----------------------------------------------
prabhat jha <pjha(a)redhat.com> made a comment on [bug
786202|https://bugzilla.redhat.com/show_bug.cgi?id=786202]
Technical note updated. If any revisions are required, please edit the "Technical
Notes" field
accordingly. All revisions will be proofread by the Engineering Content Services
team.
Diffed Contents:
@@ -1,3 +1,3 @@
-When JBoss Data Grid operates with four nodes, if the second node crashes and then is
brought up again, the subsequent state transfer takes a very long time to conclude. This
occurs despite a mild data load (5% of heap and client load). The data load concludes
within a minute while the state transfer unexpectedly requires more time than this.
+With JBoss Data Grid cluster of size 4 nodes or higher, if a node crashes and then is
brought up again, the subsequent state transfer takes a very long time to conclude. This
occurs despite a mild data load (5% of heap and client load). The data load concludes
within a minute while the state transfer unexpectedly requires more time than this.
</para><para>
-This problem has only occurred once and has not been reproduced in tests since. It is a
low risk performance problem, if it occurs within JBoss Data Grid.+This problem has only
occurred once and has not been reproduced in tests since. It is a low risk performance
problem.
State transfer takes more than 10 minutes with only 10K entries.
----------------------------------------------------------------
Key: ISPN-1838
URL: https://issues.jboss.org/browse/ISPN-1838
Project: Infinispan
Issue Type: Bug
Components: State transfer
Affects Versions: 5.1.2.FINAL
Reporter: Michal Linhard
Assignee: Dan Berindei
Attachments: apply_state.log, apply_state.txt, dan.xml, retransmissions.txt,
uuperf-tcp.txt, uuperf-udp.txt, uuperf-unicast1.txt
This could be categorized as a performance problem.
It happened in resilience test run:
http://hudson.qa.jboss.com/hudson/view/EDG6/view/EDG-REPORTS-RESILIENCE/j...
originally to verify ISPN-1826
It was run with infinispan special build from Galder's branch
(https://github.com/galderz/infinispan/tree/t_1826_5)
http://hudson.qa.jboss.com/hudson/view/EDG6/view/EDG-QE/job/edg-60-build-...
test starts 4 nodes, kills node2, starts node2 and sees what happens
trace logging on server side was on. there were two runs
200 clients, 10K entries
http://hudson.qa.jboss.com/hudson/view/EDG6/view/EDG-REPORTS-RESILIENCE/j...
20 clients, 1K entries
http://hudson.qa.jboss.com/hudson/view/EDG6/view/EDG-REPORTS-RESILIENCE/j...
in run 24 everyting looks nice:
http://hudson.qa.jboss.com/hudson/view/EDG6/view/EDG-REPORTS-RESILIENCE/j...
in run 23 the state transfer takes forever (more than 10 min)
these important views are installed on coordinator (node03):
{code}
2012-02-02 05:11:00,560 TRACE [BaseStateTransferManagerImpl] (transport-thread-1)
Received new cache view: testCache CacheView{viewId=6, members=[edg-perf04-45788,
edg-perf03-36944, edg-perf02-51026, edg-perf01-47003]}
2012-02-02 05:15:13,591 TRACE [BaseStateTransferManagerImpl] (transport-thread-9)
Received new cache view: testCache CacheView{viewId=7, members=[edg-perf04-45788,
edg-perf03-36944, edg-perf01-47003]}
2012-02-02 05:18:17,219 TRACE [BaseStateTransferManagerImpl] (transport-thread-1)
Received new cache view: testCache CacheView{viewId=8, members=[edg-perf04-45788,
edg-perf03-36944, edg-perf01-47003, edg-perf02-21799]}
2012-02-02 05:28:17,511 TRACE [BaseStateTransferManagerImpl] (transport-thread-22)
Received new cache view: testCache CacheView{viewId=10, members=[edg-perf04-45788,
edg-perf03-36944, edg-perf01-47003, edg-perf02-21799]}
{code}
viewId=8 is the one that takes 10 min to prepare and after that the prepare fails:
{code}
2012-02-02 05:28:17,219 ERROR [CacheViewsManagerImpl]
(CacheViewInstaller-9,edg-perf03-36944) ISPN000172: Failed to prepare view
CacheView{viewId=8, members=[edg-perf04-45788, edg-perf03-36944, edg-perf01-47003,
edg-perf02-21799]} for cache testCache, ro..
java.util.concurrent.TimeoutException
at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:228)
at java.util.concurrent.FutureTask.get(FutureTask.java:91)
at
org.infinispan.cacheviews.CacheViewsManagerImpl.clusterPrepareView(CacheViewsManagerImpl.java:319)
at
org.infinispan.cacheviews.CacheViewsManagerImpl.clusterInstallView(CacheViewsManagerImpl.java:250)
at
org.infinispan.cacheviews.CacheViewsManagerImpl$ViewInstallationTask.call(CacheViewsManagerImpl.java:877)
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)
{code}
viewId=10 is a retry and that succeeds quite quickly but the test is already ending about
that time.
It might be worth looking at the tracelogs since they're already there...
10K entries and 200 clients isn't such a big load ...
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