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Bug
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Resolution: Unresolved
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Minor
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None
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Debian GNU/Linux 5.0.8 (lenny)
Apache 2.2.9-10+lenny9
Java SE Runtime Environment 1.6.0_20
Jenkins 1.408
Host system
$ lsb_release -idrc Distributor ID: Debian Description: Debian GNU/Linux 5.0.8 (lenny) Release: 5.0.8 Codename: lenny
Java version
$ java -version java version "1.6.0_20" Java(TM) SE Runtime Environment (build 1.6.0_20-b02) Java HotSpot(TM) Client VM (build 16.3-b01, mixed mode, sharing)
Installed software with versions
$ apt-show-versions -r -p 'jenkins.*|apache2.*|libapache2-.*' | column -t apache2/lenny uptodate 2.2.9-10+lenny9 apache2-doc/lenny uptodate 2.2.9-10+lenny9 apache2-mpm-prefork/lenny uptodate 2.2.9-10+lenny9 apache2-utils/lenny uptodate 2.2.9-10+lenny9 apache2.2-common/lenny uptodate 2.2.9-10+lenny9 jenkins/binary uptodate 1.408 libapache2-mod-auth-mysql/lenny uptodate 4.3.9-11 libapache2-mod-auth-openid/lenny uptodate 0.3-2 libapache2-mod-encoding/lenny uptodate 20040616-5 libapache2-mod-fcgid/lenny uptodate 1:2.2-1+lenny1 libapache2-mod-geoip/lenny uptodate 1.1.8-2 libapache2-mod-php5/lenny uptodate 5.2.6.dfsg.1-1+lenny10 libapache2-mod-python/lenny uptodate 3.3.1-7 libapache2-mod-wsgi/lenny uptodate 2.5-1~lenny1
Loaded Apache2 modules (maybe this could be relevant, i don't know)
$ find /etc/apache2/mods-enabled/ -name '*.load' | sed 's|.*/||' | sort | column alias.load authz_user.load geoip.load rewrite.load auth_basic.load autoindex.load mime.load setenvif.load auth_mysql.load cgi.load negotiation.load status.load authn_file.load deflate.load php5.load wsgi.load authz_default.load dir.load proxy_http.load authz_groupfile.load env.load proxy.load authz_host.load fcgid.load python.load
The reverse proxy setup
$ cat /etc/apache2/conf.d/jenkins.conf ProxyPass /jenkins http://localhost:8080/jenkins ProxyPassReverse /jenkins http://localhost:8080/jenkins # Local reverse proxy authorization override # Most unix distribution deny proxy by default (ie /etc/apache2/mods-enabled/proxy.conf in Ubuntu) <Proxy http://localhost:8080/jenkins*> Order deny,allow Allow from all </Proxy>
After invoking the command it takes a long time until the CLI dose throw the error. I suppose it's just the long time out
$ java -jar jenkins-cli.jar -s http://localhost/jenkins/ version
Exception in thread "main" java.io.IOException: Premature EOF
at sun.net.www.http.ChunkedInputStream.readAheadBlocking(ChunkedInputStream.java:538)
at sun.net.www.http.ChunkedInputStream.readAhead(ChunkedInputStream.java:582)
at sun.net.www.http.ChunkedInputStream.read(ChunkedInputStream.java:669)
at java.io.FilterInputStream.read(FilterInputStream.java:116)
at sun.net.www.protocol.http.HttpURLConnection$HttpInputStream.read(HttpURLConnection.java:2512)
at sun.net.www.protocol.http.HttpURLConnection$HttpInputStream.read(HttpURLConnection.java:2507)
at sun.net.www.protocol.http.HttpURLConnection$HttpInputStream.read(HttpURLConnection.java:2496)
at hudson.remoting.Channel.<init>(Channel.java:386)
at hudson.remoting.Channel.<init>(Channel.java:348)
at hudson.remoting.Channel.<init>(Channel.java:309)
at hudson.remoting.Channel.<init>(Channel.java:305)
at hudson.remoting.Channel.<init>(Channel.java:293)
at hudson.cli.CLI.<init>(CLI.java:92)
at hudson.cli.CLI.<init>(CLI.java:63)
at hudson.cli.CLI.main(CLI.java:182)
The Jenkins server log dose contain such an entry for each failed connection attempt
$ cat /var/log/jenkins/jenkins.log Apr 23, 2011 8:50:30 AM hudson.remoting.Channel$ReaderThread run SEVERE: I/O error in channel HTTP full-duplex channel 5a8a8941-e820-4b03-a52e-5f45c4112afc java.net.SocketException: Connection reset at java.net.SocketInputStream.read(SocketInputStream.java:168) at java.net.SocketInputStream.read(SocketInputStream.java:182) at winstone.WinstoneInputStream.read(WinstoneInputStream.java:49) at hudson.util.ChunkedInputStream.getChunkSizeFromInputStream(ChunkedInputStream.java:223) at hudson.util.ChunkedInputStream.nextChunk(ChunkedInputStream.java:197) at hudson.util.ChunkedInputStream.read(ChunkedInputStream.java:120) at java.io.ObjectInputStream$PeekInputStream.peek(ObjectInputStream.java:2249) at java.io.ObjectInputStream$BlockDataInputStream.peek(ObjectInputStream.java:2542) at java.io.ObjectInputStream$BlockDataInputStream.peekByte(ObjectInputStream.java:2552) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1297) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351) at hudson.remoting.Channel$ReaderThread.run(Channel.java:992)
Interestingly the connection dose work fine when I connect directly to it
$ java -jar jenkins-cli.jar -s http://localhost:8080/jenkins/ version 1.408
[JENKINS-9487] Premature EOF/Connection reset while trying to connect to Jenkins via Apache2 reverse proxy
166_MMX
added a comment - These are the packets send and revived between the cli.jar and the Apache reverse proxy.
Found a response from the reverse proxy saying that the post request is too large.
As far as I can remember I didn't do any changes regarding that setting, so these might be the default settings of Lenny.
Also the issue still persists with Jenkins ver. 1.425
Should I try to tweak the settings or are you going to investigate on your side?
166_MMX
added a comment - These are the packets send and revived between the cli.jar and the Apache reverse proxy.
Found a response from the reverse proxy saying that the post request is too large.
As far as I can remember I didn't do any changes regarding that setting, so these might be the default settings of Lenny.
Also the issue still persists with Jenkins ver. 1.425
Should I try to tweak the settings or are you going to investigate on your side? 
Any chance you have tcpdump packet capture of what happens on the wire?