Confluence is Not Accessible with a 502 Proxy Error
プラットフォームについて: Data Center - この記事は、Data Center プラットフォームのアトラシアン製品に適用されます。
このナレッジベース記事は製品の Data Center バージョン用に作成されています。Data Center 固有ではない機能の Data Center ナレッジベースは、製品のサーバー バージョンでも動作する可能性はありますが、テストは行われていません。サーバー*製品のサポートは 2024 年 2 月 15 日に終了しました。サーバー製品を利用している場合は、アトラシアンのサーバー製品のサポート終了のお知らせページにて移行オプションをご確認ください。
*Fisheye および Crucible は除く
症状
Confluence starts up fine but is not accessible via the browser. It redirects you to a "502 Proxy Error" message.
The following IndexOutOfBoundsException appears in catalina.out:
SEVERE: Error, processing connection
java.lang.IndexOutOfBoundsException
at java.io.BufferedInputStream.read(Unknown Source)
at org.apache.jk.common.ChannelSocket.read(ChannelSocket.java:628)
at org.apache.jk.common.ChannelSocket.receive(ChannelSocket.java:585)
at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:693)
at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:898)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:690)
at java.lang.Thread.run(Unknown Source)
Sep 19, 2013 4:03:46 AM org.apache.jk.common.MsgAjp processHeader
SEVERE: BAD packet signature 18245
Sep 19, 2013 4:03:46 AM org.apache.jk.common.ChannelSocket processConnection
SEVERE: Error, processing connection
java.lang.IndexOutOfBoundsException
at java.io.BufferedInputStream.read(Unknown Source)
at org.apache.jk.common.ChannelSocket.read(ChannelSocket.java:628)
at org.apache.jk.common.ChannelSocket.receive(ChannelSocket.java:585)
at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:693)
at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:898)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:690)
at java.lang.Thread.run(Unknown Source)
診断
The error is clearly related to Apache Tomcat, and there is some sort of proxy in place. To quickly isolate the proxy as the source of the problem, replace the existing <confluence-install-directory>/conf/server.xml with a default server.xml file (with default settings), and access Confluence via localhost:<port>, as configured in the default server.xml. If you can access Confluence successfully after this change, the proxy is indeed the culprit. Identify what proxy is in use (e.g. mod_proxy or mod_jk).
原因
There is an AJP connection set in server.xml even though the server is actually configured to use mod_proxy. This causes a conflict.
ソリューション
- Remove the AJP connection in
server.xml - Confluence を再起動します。
It's always good to check on the proxy setting in <confluence-install>/conf/server.xml and compare it against the recommendations is Using Apache with mod_proxy. From here, you'd be able to isolate which line of configuration is causing the problem.