We have a separate Java process indexing to Solr using SolrJ. We are
using Solr 3.4.0, and Jetty version 8.0.1.v20110908. We experienced
Solr hanging today. For a period of approximately 10 minutes, it did
not respond to queries. Our indexer sends a query to build a
spellcheck index after committing once it's added all new documents
(because we have auto-commits that we don't want to trigger rebuilding
the spellcheck, we don't use buildOnCommit), and then sends a query to
build the suggest component index. We see this from the Solr log
during the period it was hung (we attempted to send several queries
during this time, but they do not appear in the log, or appear after
waiting for several minutes):
2011-09-28 13:18:03,217 [qtp10884088-13] INFO
org.apache.solr.core.SolrCore - [report] webapp= path=/select
params={spellcheck=true&qt=dismax&wt=javabin&rows=0&spellcheck.build=true&version=2}
hits=98772 status=0 QTime=173594
2011-09-28 13:28:18,857 [qtp10884088-89] INFO
org.apache.solr.spelling.suggest.Suggester - build()
...
2011-09-28 13:29:02,873 [qtp10884088-89] INFO
org.apache.solr.core.SolrCore - [report] webapp= path=/suggest
params={spellcheck=true&qt=/suggest&wt=javabin&spellcheck.build=true&version=2}
status=0 QTime=44016
In our indexer log, we see just after this (13:28:19,217) the call to
build our suggestion index (which comes right after building the
spellcheck index) times out and throws a NoHttpResponseException: The
server localhost failed to respond.
Any ideas? Anything else we should look at to help diagnose?
---
Stephen Duncan Jr
www.stephenduncanjr.com
