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From Ralph Einfeldt <ralph.einfe...@uptime-isc.de>
Subject AW: Jakarta crashes after 900+ simultaneous connection
Date Fri, 10 Aug 2001 06:53:57 GMT
That's a problem of your java vm or the underlying
native libraries. 

You have following options 
- Upgrade to a newer version of the VM.
- Use a VM from a different vendor.
- Upgrade to a newer version of the JDK.

P.S.: You didn't mention which JDK you are using.
(Vendor, Version (from the stacktace: 1.2.2), Revision)

> -----Urspr√ľngliche Nachricht-----
> Von: Santosh Pasi [mailto:spasi@diskonnet.com]
> Gesendet: Freitag, 10. August 2001 07:25
> An: tomcat-user@jakarta.apache.org
> Betreff: Jakarta crashes after 900+ simultaneous connection
> 
> 
> Hi everyone,
> 
> We are doing some stress testing. My problem is that when number of 
> connections reaches around 940..980, jakarta crashes with 
> following 
> messages-------------------------------------------------------------
> SIGSEGV   11*  segmentation violation
>     si_signo [11]: SIGSEGV   11*  segmentation violation
>     si_errno [0]: Success
>     si_code [0]: SI_USER [pid: 0, uid: 0]
>         stackpointer=0x4c558554
> 
> Full thread dump Classic VM (1.2.2-L, green threads):
>     "ppp202" (TID:0x40fb7190, sys_thread_t:0x8d0dec0, state:R) prio=5
>         at java.net.SocketInputStream.socketRead(Native Method)
>         at java.net.SocketInputStream.read(SocketInputStream.java:86)
>         at java.net.SocketInputStream.read(SocketInputStream.java:67)
>         at java.io.InputStreamReader.fill(InputStreamReader.java:159)
>         at java.io.InputStreamReader.read(InputStreamReader.java:235)
>         at java.io.BufferedReader.fill(BufferedReader.java:133)
>         at java.io.BufferedReader.readLine(BufferedReader.java:270)
>         at java.io.BufferedReader.readLine(BufferedReader.java:325)
>         at IRCClient.run(IRCClient.java:799)
>     "bumba174" (TID:0x40f88f90, sys_thread_t:0x8d0b358, 
> state:CW) prio=5
>         at java.lang.Thread.sleep(Native Method)
>         at IRCClient.run(IRCClient.java:765)
>     "sunny1176" (TID:0x40f75b28, sys_thread_t:0x8d0b930, 
> state:CW) prio=5
>         at java.lang.Thread.sleep(Native Method)
> 
> 
> ......
> ......
> 
> -------------------------------------------------------------
> 
> We are using redhat 6.2 Linux, kernel 2.2.16, Tomcat-jakarta-3.2.1, 
> apache 1.3.14.
> Hope to get some reply.
> 
> Regards,
> Santosh Pasi
> 
> 

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