Bug 43995 - Sendfile thread uses 100% cpu for long periods
Summary: Sendfile thread uses 100% cpu for long periods
Status: RESOLVED FIXED
Alias: None
Product: Tomcat 5
Classification: Unclassified
Component: Native:Integration (show other bugs)
Version: 5.5.25
Hardware: Other other
: P2 normal (vote)
Target Milestone: ---
Assignee: Tomcat Developers Mailing List
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2007-11-29 06:22 UTC by Michiel Thuys
Modified: 2008-01-06 15:17 UTC (History)
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Description Michiel Thuys 2007-11-29 06:22:51 UTC 
Issue 42925 that was reported for Tomcat 6 also applies to Tomcat 5.5. When
using the Apache Portable Runtime, the sendfile thread can take 100% CPU load
when a poll descriptor time-out occurs. This happens because Poll.maintain() is
never called for the sendfile thread.

The proposed patch (http://issues.apache.org/bugzilla/attachment.cgi?id=20930)
can also be applied to Tomcat 5.5.
Comment 1 Michiel Thuys 2007-11-29 06:24:28 UTC 
Link to the original issue: http://issues.apache.org/bugzilla/show_bug.cgi?id=42925
Comment 2 Mark Thomas 2007-11-29 15:13:09 UTC 
A port of the TC6 fix has been formerly proposed.
Comment 3 Mark Thomas 2008-01-06 15:17:09 UTC 
Fixed in 5.5.x and will be included in 5.5.26 onwards.