-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Mahudeswaran,
On 3/14/16 2:21 PM, Mahudeswaran A wrote: > We are working in different time zone. & We will try the thread > dump meantime...Would you like to share any check points in thread > dump or share some troubleshooting steps/tools to identify the > issue. The visualgc plugin in jvisualvm is not supported for the > jvm 1.6. > > Is there any configuration to include timestamp in tomcat std.out > or std.err log files. > > **Attached is the sequence flow that we are trying in our load > environment; > > Itr-1: If we attach a commercial tool (forget the name-it something > like yourjdk... will share you as soon as I get) the jvm crashes > within 10-15 minutes; Thread-count=150 Itr-2: If we attach a > commercial tool (forget the name-it something like yourjdk... will > share you as soon as I get) the jvm crashes within 50-55 minutes; > Thread-count=300 Itr-3: If we attach a commercial tool (forget the > name-it something like yourjdk... will share you as soon as I get) > the jvm crashes within 50-55 minutes; Thread-count=30 Itr-4: The > commercial tool was disconnected from jvm monitoring and started > the load with thread-count=30; & last few hours before checked it's > was running;monitoring with jvisualvm. You are probably using YourKit. When the JVM "crashes", do you get a hspid file and the process actually dies, or do you get some kind of exception in Tomcat's catalina.out or other log? Thanks, - -chris > -----Original Message----- From: Mark Thomas > [mailto:ma...@apache.org] Sent: 14 March 2016 20:14 To: Tomcat > Users List Subject: Re: Tomcat 6.x 32bit-- becomes non responsive > state / crash/hang > > On 14/03/2016 14:41, Mahudeswaran A wrote: >> Hi, >> >> We are facing unusual issue in Tomcat 6.x, where Tomcat 6.x >> becomes non responsive state after two week's time. This happens >> randomly; The jvisualvm screen shows CPU, memory, thread are >> normal and we don't see memory leak, thread leak or CPU hike. JVM >> running is 32 bit; In our lab, we are simulating this issue by >> running a load but still trying our level best but couldn't. Min >> heap=256MB; Max heap=512MB Thread count=150 Tomcat idle session >> timeout=30minutes In out load environment the thread count >> reduced to 30; >> >> Any insights on why the tomcat becomes non responsive; > > Take a series of 3 thread dumps, ~15s apart. If you need help > analysing them, post them here. > > Mark > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > > > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > -----BEGIN PGP SIGNATURE----- Comment: GPGTools - http://gpgtools.org Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iEYEARECAAYFAlboVRQACgkQ9CaO5/Lv0PCUxwCbB+LSrljEx62lSXvbRsOD4Xbj +g8An0UqMAZSgmVUEEXJcgqQH6NFxPrX =KmpU -----END PGP SIGNATURE----- --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
