solrj (CommonsHttpSolrServer) in production caught frozen forever
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Key: SOLR-709
URL: https://issues.apache.org/jira/browse/SOLR-709
Project: Solr
Issue Type: Bug
Components: clients - java
Affects Versions: 1.3
Environment: solrj 1.3 i beleive latest snapshot
Reporter: Paul Mokbel
Priority: Blocker
I know for a fact that CommonsHttpSolrServer::setConnectionTimeout() works
because I've tested it in the past but yesterday night my "SolrUpdateThread"
stopped processing its queue.
Luckily I was able to JConsole into the running process and check the state of
the thread. It was blocked with the following trace:
java.net.SocketInputStream.socketRead0(Native Method)
java.net.SocketInputStream.read(SocketInputStream.java:129)
java.io.BufferedInputStream.fill(BufferedInputStream.java:218)
java.io.BufferedInputStream.read(BufferedInputStream.java:237)
org.apache.commons.httpclient.HttpParser.readRawLine(HttpParser.java:78)
org.apache.commons.httpclient.HttpParser.readLine(HttpParser.java:106)
org.apache.commons.httpclient.HttpConnection.readLine(HttpConnection.java:1116)
org.apache.commons.httpclient.MultiThreadedHttpConnectionManager$HttpConnectionAdapter.readLine(MultiThreadedHttpConnectionManager.java:1413)
org.apache.commons.httpclient.HttpMethodBase.readStatusLine(HttpMethodBase.java:1973)
org.apache.commons.httpclient.HttpMethodBase.readResponse(HttpMethodBase.java:1735)
org.apache.commons.httpclient.HttpMethodBase.execute(HttpMethodBase.java:1098)
org.apache.commons.httpclient.HttpMethodDirector.executeWithRetry(HttpMethodDirector.java:398)
org.apache.commons.httpclient.HttpMethodDirector.executeMethod(HttpMethodDirector.java:171)
org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:397)
org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:323)
org.apache.solr.client.solrj.impl.CommonsHttpSolrServer.request(CommonsHttpSolrServer.java:303)
org.apache.solr.client.solrj.impl.CommonsHttpSolrServer.request(CommonsHttpSolrServer.java:155)
org.apache.solr.client.solrj.request.UpdateRequest.process(UpdateRequest.java:220)
org.apache.solr.client.solrj.SolrServer.commit(SolrServer.java:102)
org.apache.solr.client.solrj.SolrServer.commit(SolrServer.java:91)
It had been blocking for a few hours when i found it this way, and I initiate
CommonsHttpSolrServer::setConnectionTimeout(2000); at startup ! The software
using this is getting ready to go into production environment so this is real
scary for me.
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