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From Trilok Prithvi <>
Subject OutOfMemoryError
Date Tue, 16 Dec 2014 16:55:09 GMT
We are getting OOME pretty often (every hour or so). We are restarting
nodes to keep up with it.

Here is our setup:
SolrCloud 4.10.2 (2 shards, 2 replicas) with 3 zookeepers.

Each node has:
2GB JVM (Xmx 2048, Xms 1024)
~100 Million documents (split among 2 shards - ~50M on each shard)
Solr Core is about ~16GB of data on each node.

*Physical Memory is almost always 99% full.*

The commit setup is as follows:

<updateHandler class="solr.DirectUpdateHandler2"> <updateLog> <str name=
"dir">${solr.ulog.dir:}</str> </updateLog> <autoCommit> <maxTime>300000</
maxTime> <maxDocs>100000</maxDocs> <openSearcher>false</openSearcher>
autoCommit> <autoSoftCommit> <maxTime>5000</maxTime> </autoSoftCommit>
Rest of the solrconfig.xml setup is all default.

Some of the errors that we see on Solr ADMIN Logging is as follows:

java.lang.OutOfMemoryError: Java heap space

org.apache.solr.common.SolrException: no servers hosting shard:

org.apache.http.TruncatedChunkException: Truncated chunk ( expected
size: 8192; actual size: 7222)

Please let me know if you need anymore information.


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