Devansh Dhutia created SOLR-5850:
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Summary: Race condition in ConcurrentUpdateSolrServer
Key: SOLR-5850
URL: https://issues.apache.org/jira/browse/SOLR-5850
Project: Solr
Issue Type: Bug
Components: search, SolrCloud, update
Affects Versions: 4.6
Reporter: Devansh Dhutia
Priority: Critical
Possibly related to SOLR-2308, we are seeing a Queue Full error message when
issuing thousands of writes to the Solr Cloud.
Each Update has 200 documents, and a commit is issued after 2000 documents have
been added.
The writes are spread out to all the servers in the cloud (2 in this case) and
following is the stack trace from Solr:
{code:xml}
<?xml version="1.0" encoding="UTF-8"?>
<response>
<lst name="responseHeader"><int name="status">500</int><int
name="QTime">101</int></lst><lst name="error"><str name="msg">Queue
full</str><str name="t
race">java.lang.IllegalStateException: Queue full
at java.util.AbstractQueue.add(Unknown Source)
at
org.apache.solr.client.solrj.impl.ConcurrentUpdateSolrServer$Runner$1.writeTo(ConcurrentUpdateSolrServer.java:181)
at org.apache.http.entity.EntityTemplate.writeTo(EntityTemplate.java:72)
at
org.apache.http.entity.HttpEntityWrapper.writeTo(HttpEntityWrapper.java:98)
at
org.apache.http.impl.client.EntityEnclosingRequestWrapper$EntityWrapper.writeTo(EntityEnclosingRequestWrapper.java:108)
at
org.apache.http.impl.entity.EntitySerializer.serialize(EntitySerializer.java:122)
at
org.apache.http.impl.AbstractHttpClientConnection.sendRequestEntity(AbstractHttpClientConnection.java:271)
at
org.apache.http.impl.conn.ManagedClientConnectionImpl.sendRequestEntity(ManagedClientConnectionImpl.java:197)
at
org.apache.http.protocol.HttpRequestExecutor.doSendRequest(HttpRequestExecutor.java:257)
at
org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:125)
at
org.apache.http.impl.client.DefaultRequestDirector.tryExecute(DefaultRequestDirector.java:715)
at
org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:520)
at
org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:906)
at
org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:805)
at
org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:784)
at
org.apache.solr.client.solrj.impl.ConcurrentUpdateSolrServer$Runner.run(ConcurrentUpdateSolrServer.java:232)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
</str><int name="code">500</int></lst>
</response>
{code}
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