-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 止观梅,
On 2/14/12 3:12 AM, 止观梅 wrote: > I'm encountering a problem: 1. almost all threads are in "P" > status, and occasionally there is 1 or 2 in "S" or "R" status, Are you talking about looking at the threads in 'top' or somewhere else? Java thread dumps usually say something like "RUNNING" as their status, and 'top' (on Linux) doesn't have a 'P' state. So, what are you talking about? > 2. and there is no slow query on MySQL side, because I can't catch > any process with command "show full processlist", Oh, so you're running MySQL? Are you talking about OS threads or Java threads? > 3. while tomcat connection rate is merely less than 30req/s, Oh, good. Tomcat is somewhere in this mix. > 4. and tomcat CAN response correct result page in acceptable time(1 > second) Great. > Software information: apache-tomcat-7.0.6 You seriously need to upgrade: 7.0.6 was the first non-beta version of Tomcat 7.0.x and many many things have been fixed since then. Current version is 7.0.25. > Screenshot: please refer to attachment. Images are stripped from posts. Please either ZIP the screenshot (sometimes works), post the screnshot somewhere like dropbox and give us a link, or try to describe what the screenshot shows. > Question: 1. is this situation(full of "P" status) problematic? That depends on what 'P' means. If it means "*P*erfectly Fine" then I suspect things are okay. > 2. how to explain the situation?(waiting for Http request body? > sounds unreasonable!) If you want to know what Tomcat is doing, take a thread dump. http://wiki.apache.org/tomcat/HowTo#How_do_I_obtain_a_thread_dump_of_my_running_webapp_.3F - -chris -----BEGIN PGP SIGNATURE----- Version: GnuPG/MacGPG2 v2.0.17 (Darwin) Comment: GPGTools - http://gpgtools.org Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk86l7MACgkQ9CaO5/Lv0PDrkQCfQB3eZC0lhG692mIcDHVcgru3 5coAmgJC+QzsmTKi9c4qiqrBvHt+t5c0 =02Bm -----END PGP SIGNATURE----- --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
