'All threads (150) are currently busy, waiting. Increase maxThreads (150) or check the servlet status' Due to High Volume Transactions

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症状

On Confluence instances with many concurrent users, the following error may appear in the catalina.out log file:

SEVERE: All threads (150) are currently busy, waiting. Increase maxThreads (150) or check the servlet status

原因

A large number of concurrent users are using all of the available threads.

ソリューション

Note that this may be the sign of a poorly performing system with hung threads. Check Common causes for Jira Server crashes and performance issues for a root cause diagnosis. 

If you're running a high-load installation of Confluence, increase the number of maxThreads in your server.xml file:

From 150:

        <Connector port="8080" maxHttpHeaderSize="8192"
                   maxThreads="150" minSpareThreads="25" maxSpareThreads="75"
                   enableLookups="false" disableUploadTimeout="true"
                   URIEncoding="UTF-8"/>

To 200 or greater:

        <Connector port="8080" maxHttpHeaderSize="8192"
                   maxThreads="200" minSpareThreads="25" maxSpareThreads="75"
                   enableLookups="false" disableUploadTimeout="true"
                   URIEncoding="UTF-8"/>

The higher you increase the maxThreads, the more resources your Confluence instance will consume.

最終更新日: 2016 年 2 月 26 日

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