[SOLR-2357] Thread Local memory leaks on restart

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Abandoned
• Affects Version/s: 1.4.1
• Component/s: contrib - Solr Cell (Tika extraction), search
• Labels: memory_leak threadlocal

Environment

Windows Server 2008, Apache Tomcat 7.0.8, Java 1.6.23

• Assignee: Unassigned
• Reporter: Gus Heck
• Created: 10/Feb/11 16:46
• Updated: 10/Mar/16 18:10
• Resolved: 10/Mar/16 17:08

Description

Restarting solr (via a changed to a watched resource or via manager app for example) after submitting documents with Solr-Cell, gives the following message (many many times), and causes Tomcat to shutdown completely.

SEVERE: The web application [/solr] created a ThreadLocal with key of type [org.
apache.solr.common.util.DateUtil.ThreadLocalDateFormat] (value [org.apache.solr.
common.util.DateUtil$ThreadLocalDateFormat@dc30dfa]) and a value of type [java.t
ext.SimpleDateFormat] (value [java.text.SimpleDateFormat@5af7aed5]) but failed t
o remove it when the web application was stopped. Threads are going to be renewe
d over time to try and avoid a probable memory leak.
Feb 10, 2011 7:17:53 AM org.apache.catalina.loader.WebappClassLoader checkThread
LocalMapForLeaks

Issue Links

• is related to: SOLR-1899 dates prior to 1000AD are not formatted properly in responses