I have not done any statistics maintenance for several years. Data is
growing and I did:
1. stopped DSpace and backed up /dspace/DSPACE/solr/statistics/data/
2. optimize:
./dspace stats-util -o
SOLR Optimize -- Process Started:1570563559015
Exception: background merge hit exception: _3epm(4.10.4):C5192613
_2nyj(4.10.4):C4234562
The whole exception is in the end
3. split by years:
./dspace stats-util -s
Moving: 437373 into core statistics-2016
Moving: 4822733 into core statistics-2017
Exception: No space left on device
org.apache.solr.client.solrj.impl.HttpSolrServer$RemoteSolrException: No
space left on device
This created directories statistics-2016, statistics-2017 and hundreds of
tempxxx.csv files in the DSPACE/temp directory
4. I deleted the directories and the files. Then DSpace created again
statistics-2017 with some data files in it.
5. I stopped DSpace, deleted statistics-2017,
/dspace/DSPACE/solr/statistics/data/ and restored the initial
/dspace/DSPACE/solr/statistics/data/
6. Now statistics does not work. The log file says
2019-10-09 08:37:21,160 ERROR org.apache.solr.core.CoreContainer @ Error
creating core [statistics]: Error opening new searcher
org.apache.solr.common.SolrException: Error opening new searcher
. . .
Caused by: java.nio.file.NoSuchFileException:
/dspace/DSPACE/solr/statistics/data/index/segments_21us
My concern is:
1. How to make the statistics work again?
2. How does "stats-util -s" work? I mean - If I provide more disk space for
the DSPACE/temp directory, will this be enough for the "stats-util -s" to
finish successfully? Does it move everything temporarily to DSPACE/temp? Or
should there be space for some overlap of the old statistics and the new
populated statistics-2016, statistics-2017, ...?
Best regards
=========== the exception during optimize:
[root@dspace6 bin]# ./dspace stats-util -o
SOLR Optimize -- Process Started:1570563559015
Exception: background merge hit exception: _3epm(4.10.4):C5192613
_2nyj(4.10.4):C4234562 _1yg5(4.10.4):C3952629 _xme(4.10.2):C2658195
_3yb6(4.10.4):C2239573 _3mtu(4.10.4):C598509 _3hb8(4.10.4):C448155 into
_3ybb [maxNumSegments=1]
org.apache.solr.client.solrj.impl.HttpSolrServer$RemoteSolrException:
background merge hit exception: _3epm(4.10.4):C5192613
_2nyj(4.10.4):C4234562 _1yg5(4.10.4):C3952629 _xme(4.10.2):C2658195
_3yb6(4.10.4):C2239573 _3mtu(4.10.4):C598509 _3hb8(4.10.4):C448155 into
_3ybb [maxNumSegments=1]
at
org.apache.solr.client.solrj.impl.HttpSolrServer.executeMethod(HttpSolrServer.java:552)
at
org.apache.solr.client.solrj.impl.HttpSolrServer.request(HttpSolrServer.java:210)
at
org.apache.solr.client.solrj.impl.HttpSolrServer.request(HttpSolrServer.java:206)
at
org.apache.solr.client.solrj.request.AbstractUpdateRequest.process(AbstractUpdateRequest.java:124)
at
org.apache.solr.client.solrj.SolrServer.optimize(SolrServer.java:204)
at
org.apache.solr.client.solrj.SolrServer.optimize(SolrServer.java:158)
at
org.dspace.statistics.SolrLoggerServiceImpl.optimizeSOLR(SolrLoggerServiceImpl.java:1161)
at
org.dspace.statistics.util.StatisticsClient.main(StatisticsClient.java:96)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at
org.dspace.app.launcher.ScriptLauncher.runOneCommand(ScriptLauncher.java:229)
at
org.dspace.app.launcher.ScriptLauncher.main(ScriptLauncher.java:81)
[root@dspace6 bin]#
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