Hello list,
We are on solr 3.4. After running a shard for some time (1w or so), we
sometimes need to shut it down for changing schema or move it around.
We have noticed the following memory leak related messages in the tomcat
logs. Could this be a sign of us doing something wrong or solr. Or can they
be safely ignored?
If not, does the memory leak happen during running and manifest itself in
the logs on shutdown only? It is clear, that if JVM with tomcat has been
shutdown, it shouldn't leak anything as such.
INFO: Closing Searcher@1e58744d main
fieldValueCache{lookups=0,hits=0,hitratio=0.00,inserts=0,evictions=0,size=0,warmupTime=0,cumulative_lookups=0,cumulative_hits=0,cumulative_hitratio=0.00,cumulative_inserts=0,cumulative_evictions=0}
filterCache{lookups=0,hits=0,hitratio=0.00,inserts=0,evictions=0,size=0,warmupTime=0,cumulative_lookups=0,cumulative_hits=0,cumulative_hitratio=0.00,cumulative_inserts=0,cumulative_evictions=0}
queryResultCache{lookups=0,hits=0,hitratio=0.00,inserts=0,evictions=0,size=0,warmupTime=0,cumulative_lookups=0,cumulative_hits=0,cumulative_hitratio=0.00,cumulative_inserts=0,cumulative_evictions=0}
documentCache{lookups=0,hits=0,hitratio=0.00,inserts=0,evictions=0,size=0,warmupTime=0,cumulative_lookups=0,cumulative_hits=0,cumulative_hitratio=0.00,cumulative_inserts=0,cumulative_evictions=0}
Apr 11, 2013 6:38:14 AM org.apache.catalina.loader.WebappClassLoader
clearReferencesThreads
SEVERE: The web application [/solr] appears to have started a thread named
[MultiThreadedHttpConnectionManager cleanup] but has failed to stop it.
This is very likely to create a memory leak.
Apr 11, 2013 6:38:14 AM org.apache.catalina.loader.WebappClassLoader
clearThreadLocalMap
SEVERE: The web application [/solr] created a ThreadLocal with key of type
[org.apache.solr.schema.DateField.ThreadLocalDateFormat] (value
[org.apache.solr.schema.DateField$ThreadLocalDateFormat@deae877]) and a
value of type [org.apache.solr.schema.DateField.ISO8601CanonicalDateFormat]
(value [org.apache.solr.schema.DateField$ISO8601CanonicalDateFormat@6b2ed43a])
but failed to remove it when the web application was stopped. This is very
likely to create a memory leak.
Apr 11, 2013 6:38:14 AM org.apache.catalina.loader.WebappClassLoader
clearThreadLocalMap
SEVERE: The web application [/solr] created a ThreadLocal with key of type
[org.apache.solr.schema.DateField.ThreadLocalDateFormat] (value
[org.apache.solr.schema.DateField$ThreadLocalDateFormat@deae877]) and a
value of type [org.apache.solr.schema.DateField.ISO8601CanonicalDateFormat]
(value [org.apache.solr.schema.DateField$ISO8601CanonicalDateFormat@6b2ed43a])
but failed to remove it when the web application was stopped. This is very
likely to create a memory leak.
Apr 11, 2013 6:38:14 AM org.apache.catalina.loader.WebappClassLoader
clearThreadLocalMap
SEVERE: The web application [/solr] created a ThreadLocal with key of type
[org.apache.solr.schema.DateField.ThreadLocalDateFormat] (value
[org.apache.solr.schema.DateField$ThreadLocalDateFormat@deae877]) and a
value of type [org.apache.solr.schema.DateField.ISO8601CanonicalDateFormat]
(value [org.apache.solr.schema.DateField$ISO8601CanonicalDateFormat@6b2ed43a])
but failed to remove it when the web application was stopped. This is very
likely to create a memory leak.
Apr 11, 2013 6:38:14 AM org.apache.catalina.loader.WebappClassLoader
clearThreadLocalMap
SEVERE: The web application [/solr] created a ThreadLocal with key of type
[org.apache.solr.schema.DateField.ThreadLocalDateFormat] (value
[org.apache.solr.schema.DateField$ThreadLocalDateFormat@deae877]) and a
value of type [org.apache.solr.schema.DateField.ISO8601CanonicalDateFormat]
(value [org.apache.solr.schema.DateField$ISO8601CanonicalDateFormat@6b2ed43a])
but failed to remove it when the web application was stopped. This is very
likely to create a memory leak.
Apr 11, 2013 6:38:14 AM org.apache.catalina.loader.WebappClassLoader
clearThreadLocalMap
SEVERE: The web application [/solr] created a ThreadLocal with key of type
[org.apache.solr.schema.DateField.ThreadLocalDateFormat] (value
[org.apache.solr.schema.DateField$ThreadLocalDateFormat@deae877]) and a
value of type [org.apache.solr.schema.DateField.ISO8601CanonicalDateFormat]
(value [org.apache.solr.schema.DateField$ISO8601CanonicalDateFormat@6b2ed43a])
but failed to remove it when the web application was stopped. This is very
likely to create a memory leak.
Apr 11, 2013 6:38:14 AM org.apache.coyote.http11.Http11Protocol destroy
INFO: Stopping Coyote HTTP/1.1 on http-port_number
