-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 이의준,
On 3/28/18 8:28 PM, 이의준 wrote: > I posted the same question a few days ago, but it was not a > satisfactory answer. > > So I ask again. > > > > Test sequence and inquiry contents > > 1. In the local test, the same load (hp-jmeter) for tomcat 7, 8 5 > minutes, What Java versions in each case? > 2. Thread dump generated after 5 minutes of load termination > > 3. Most Thread in Tomcat 7 is in TIME_WAITING state (normally OK) > > 4. Thread in Tomcat 8 mostly RUNNABLE state (estimated to be > abnormal) > > Thread Final Stack - Below (reading something) > > at org.apache.tomcat.jni.Socket.recvbb (Native Method) These threads are blocked, reading from the socket. They are likely in "keep-alive" status, meaning that they are waiting for the client to send more data. These threads are not "busy". > 5. Is the thread status of Tomcat 8 normal? Yes. > Please let us know if we need additional resources to analyze this > issue. Yous stack traces are showing threads in different states -- not just different "thread states" but also doing different things. Some threads are doing "nothing", waiting for the thread-pool to use them for something. Other threads are waiting on data to arrive on the socket . If you wait for keepAliveTimeout ms, you should see the "RUNNABLE" threads to into the "TIME_WAITING" status because they give-up on any subsequent keep-alive request. Hope that helps, - -chris -----BEGIN PGP SIGNATURE----- Comment: GPGTools - http://gpgtools.org Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQIzBAEBCAAdFiEEMmKgYcQvxMe7tcJcHPApP6U8pFgFAlq9EPsACgkQHPApP6U8 pFgP6hAAmprN368RAMi5BZK/zN/X70AaGefuahZhiMdWM01353g3nANMllFSQc65 N70JEpwr6sUJJgGqqqmpXDxn3A/Qj1pePxjB3jPhMcPAKtm61u+yULM4+fwrPftQ Gw3mi7ULE3ywkUUMcDGW9+Ur3DneDLlwG0Xp6lnUO3Yu90QyLm9WCIsyNIMZhuya I/+phfra3b5W8TI60S6LitdfdzJidxyjVmhBGI0FVjMWmyYURMHVBbuKZk7xePG4 m7bHlh39ZK1rjcU9oXbo8s4fiMPgmdmVKMOdKmdOEAYoDLHxu1kolCcu1NA1ev0k v6t3SjSEr3jA2177Gb7kKG9NerFkt/3ZMylHizWTlWPNNi3A1r9N0XJK2Ft+TnI6 xd+Up/eRVZnyCrtQCn47sK6uJDXuoRiAsfsGejBYnF6e6RfDoIoKThn1uWLhe2Nk KW8YHyPhChK/OeG3A254VelEqk3Qd4lEVMcTcFL8uLciOy0JeqJD7o+F3Y0HMwL4 b2iDgziX/GwqdIxPGmrDvImslmqq/RxC+w/x3ks6DaJiYliCmC7kqPZ1UeANHotq yTdMieyUJuMa6gHgrFyClhtT/FxxeK+/sPt5t1sjRv+qR11iM7EWAkRGYFT6XET/ 2hnQIRJeMksitbkykU6vpm9+tqoUF9Y+TPQM7R3xSvoZMTq0p8U= =P+uc -----END PGP SIGNATURE----- --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
