Hi Monika,
You didn't mention what version of DSpace you are using, nor what
activities (if any) were going on at the time (if you can narrow that
down at all).
If you are not yet on 5.4, there were two significant Solr memory
leaks/spikes resolved in 5.4:
https://jira.duraspace.org/browse/DS-2869
https://jira.duraspace.org/browse/DS-2832
(Though these were both on the search/browse side of things, not on Solr
Statistics)
There was also a Solr logging issue resolved, which seemed to be causing
Solr to do odd things with its logs:
https://jira.duraspace.org/browse/DS-2790
Anything appear in your DSpace or Solr logs during this time? I'm
assuming you are likely seeing an OutOfMemory error in one/both?
- Tim
On 1/21/2016 8:39 AM, Monika Mevenkamp wrote:
Looking at the output of jstack I see 7 blocks of
"ajp-bio-8009-exec-224" daemon prio=10 tid=0x00007f159c9ad000
nid=0x5076 runnable [0x00007f14a3343000]
java.lang.Thread.State: RUNNABLE
….
at
org.apache.solr.client.solrj.SolrServer.add(SolrServer.java:102)
at *org.dspace*.statistics.SolrLogger.postView(SolrLogger.java:229)
at
*org.dspace*.statistics.SolrLoggerUsageEventListener.receiveEvent(SolrLoggerUsageEventListener.java:42)
at
*org.dspace*.services.events.SystemEventService.fireLocalEvent(SystemEventService.java:144)
at
*org.dspace*.services.events.SystemEventService.fireEvent(SystemEventService.java:86)
at
*org.dspace*.app.webui.servlet.BitstreamServlet.doDSGet(BitstreamServlet.java:116)
at
*org.dspace*.app.webui.servlet.DSpaceServlet.processRequest(DSpaceServlet.java:130)
at
*org.dspace*.app.webui.servlet.DSpaceServlet.doGet(DSpaceServlet.java:75)
...
at
*org.dspace*.utils.servlet.DSpaceWebappServletFilter.doFilter(DSpaceWebappServletFilter.java:78)
….
Theses are the only dspace related entries in the stack dump
Looking at the Solr Admin UI I see
JVM 35% full 351.18 MBof 989.88 MB
Physical Mem 95.8% 1.72GB of 1.79GB
The JVM args shown in the solr admin UI are
-Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager
-Djava.util.logging.config.file=/usr/share/tomcat/conf/logging.properties
-Djava.io.tmpdir=/var/cache/tomcat/temp
-Djava.endorsed.dirs=
-Dcatalina.home=/usr/share/tomcat
-Dcatalina.base=/usr/share/tomcat
-Dfile.encoding=UTF-8
-XX:MaxPermSize=128M
-Xmx1024M
-Xms1024M
To give you a sense of the solr index; running a du -hm on the
/dspace/solr dir I get
du -s -hm solr
3495solr
So that is about 5.5GB
The stats core has 3579463 docs
The search core has 70372 docs
I am not sure what solr means with physical memory here
I probably should increase it - but how ?
Monika
________________
Monika Mevenkamp
mo.me...@gmail.com <mailto:mo.me...@gmail.com>
http://mo-meven.tumblr.com/
http://mcmprogramming.com/mo.meven/
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