I was able to narrow it down some more. If I put this call in a loop it will eventually hang.
org.apache.derby.drda.NetworkServerControl ping Does anyone have any ideas why this would sometimes hang? Thanks -mark -----Original Message----- From: Mark Kurley [mailto:[EMAIL PROTECTED] Sent: Tuesday, February 07, 2006 11:06 AM To: [email protected] Subject: RE: Derby - sysinfo call hangs We are running this on AIX. When the process hangs I try to send "kill -QUIT <pid>" to the process but it just hangs. I get an entry in the file /tmp/javacore_locations. For example it added the entry /tmp/javacore45520.1139323327.txt But this core dump file does not exist. The process continues to hang until I send "kill -9 <pid>". So for some reason it seems like the process never receives the "kill -QUIT". Any suggestions on how I can figure out when the call to the "sysinfo" script hangs sometimes? Thanks -mark -----Original Message----- From: Bryan Pendleton [mailto:[EMAIL PROTECTED] Sent: Thursday, February 02, 2006 5:35 PM To: [email protected] Subject: Re: Derby - sysinfo call hangs > I have noticed that sometimes when I call the "sysinfo" script the > process hangs. You didn't mention what platform you are running, but you should be able to get a Java Stack Trace showing all the threads in the sysinfo process, and what they are waiting on: - On Windows, use Control-Break: Hold down the Control key and press the Break key. - On Unix systems, send "kill -QUIT" to the process which is running sysinfo, from some other window on that machine. Then, capture the output from the Java Stack Trace, and send it along. That will provide more information about where in the sysinfo script it is hanging. thanks, bryan Notice: This transmission is for the sole use of the intended recipient(s) and may contain information that is confidential and/or privileged. If you are not the intended recipient, please delete this transmission and any attachments and notify the sender by return email immediately. Any unauthorized review, use, disclosure or distribution is prohibited. Notice: This transmission is for the sole use of the intended recipient(s) and may contain information that is confidential and/or privileged. If you are not the intended recipient, please delete this transmission and any attachments and notify the sender by return email immediately. Any unauthorized review, use, disclosure or distribution is prohibited.
