Hi,
I think there is some problem (rarely) when calling CGI.
For each "daemon" tomcat process I can see 2 threads like this:
"Thread-68" daemon prio=10 tid=0x003ee348 nid=0xac runnable
[0xacb7f000..0xacb7fa70]
at java.io.FileInputStream.readBytes(Native Method)
at java.io.FileInputStream.read(Unknown Source)
at java.lang.UNIXProcess$DeferredCloseInputStream.read(Unknown Source)
at sun.nio.cs.StreamDecoder$CharsetSD.readBytes(Unknown Source)
at sun.nio.cs.StreamDecoder$CharsetSD.implRead(Unknown Source)
at sun.nio.cs.StreamDecoder.read(Unknown Source)
- locked <0xb9d46378> (a java.io.InputStreamReader)
at java.io.InputStreamReader.read(Unknown Source)
at java.io.BufferedReader.fill(Unknown Source)
at java.io.BufferedReader.readLine(Unknown Source)
- locked <0xb9d46378> (a java.io.InputStreamReader)
at java.io.BufferedReader.readLine(Unknown Source)
at
org.apache.catalina.servlets.CGIServlet$CGIRunner.sendToLog(CGIServlet.java:1860)
at
org.apache.catalina.servlets.CGIServlet$CGIRunner.access$400(CGIServlet.java:1435)
at org.apache.catalina.servlets.CGIServlet$1.run(CGIServlet.java:1709)
"process reaper" daemon prio=10 tid=0x003ee040 nid=0xab runnable
[0xad97f000..0xad97f8f0]
at java.lang.UNIXProcess.waitForProcessExit(Native Method)
at java.lang.UNIXProcess.access$900(Unknown Source)
at java.lang.UNIXProcess$2$1.run(Unknown Source)
It seems to hang on the readLine in CGIServlet.sendToLog.
We use Tomcat 5.5.25.
Any suggestion?
Thanks
/Gunnar
> -----Ursprungligt meddelande-----
> Från: Christopher Schultz [mailto:ch...@christopherschultz.net]
> Skickat: den 19 februari 2009 16:29
> Till: Tomcat Users List
> Ämne: Re: SV: SV: When will tomcat 5.5.25 spawn a new process
>
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> Gunnar,
>
> On 2/19/2009 8:42 AM, gunnar.bost...@tieto.com wrote:
> > I tried kill -3 on the pids but did not get any output.
>
> Note that stdout is usually written to catalina.out. Check
> there for a thread dump.
>
> > We use jsvc to start tomcat so we can run on port 443
> without being root.
> > When started I see the expected 2 processes.
> > One day we started tomcat around 10 pm and the first extra
> process started around 9 am next day.
> > I don't think the load is high either.
>
> Are the child processes running java or perl?
>
> - -chris
>
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