-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Shanti,
On 4/3/14, 12:19 PM, Shanti Suresh wrote: > I am unable to understand how Tomcat v7.0.23 suppresses startup > messages in catalina.out and Tomcat v7.0.52 displays them all in > catalina.out. They work the same way. Are you launching them differently for different versions? > Also Tomcat 7.0.23 starts up much faster than Tomcat v7.0.52. > Contexts are served immediately upon a v7.0.23 restart. At some point, Tomcat was modified to adhere to some rulings made by the Servlet EG about JAR-scanning and other (unfortunately) time-consuming operations. You can speed-up Tomcat startup by using metadata-complete="true" in your web.xml, and configuring the various JAR-scanning options. https://tomcat.apache.org/tomcat-7.0-doc/config/systemprops.html#JAR_Scanning > I used the same logging.properties file from 7.0.23 into 7.0.52. I > would like to avoid the context being redeployed every time v7.0.52 > starts up. If your context is not deployed, then your web application will not respond to requests. Are you sure you don't want it deployed? > Here are some details: > > (1) Startup Times: ------------------------ > > v7.0.23 starts up in a couple of minutes at most (can't see exact > times as they are not captured in catalina.out) They should be. > v7.0.52 starts up in 479924 ms <-- so so long! That is a very long time. Can you take some thread dumps during the process. You certainly have a long time for that opportunity. > (2) Catalina.out messages: > > v7.0.23 catalina.out is empty. How do you launch Tomcat 7.0.23? > ------------------------------------ ----------v7.0.52 catalina.out > snippet:----------- Apr 3, 2014 9:07:24 AM > org.apache.catalina.startup.HostConfig deployDescriptor INFO: > Deploying configuration descriptor > /opt/tomcat/delivery/apache-tomcat-7.0.52/conf/Catalina/localhost/context_1.xml > > Apr 3, 2014 9:07:28 AM org.apache.catalina.startup.HostConfig > deployDescriptor INFO: Deploying configuration descriptor > /opt/tomcat/delivery/apache-tomcat-7.0.52/conf/Catalina/localhost/context_2.xml > > ... > Apr 3, 2014 9:07:31 AM org.apache.catalina.startup.HostConfig > deployDescriptor INFO: Deploying configuration descriptor > /opt/tomcat/delivery/apache-tomcat-7.0.52/conf/Catalina/localhost/context_136.xml > > ... So Tomcat is deploying context_136 which is presumably your web application. Why does your web application take so long to launch? > Apr 3, 2014 9:15:04 AM org.apache.catalina.startup.Catalina start > INFO: Server startup in 479924 ms ----------end of v7.0.52 > catalina.out snippet:----------- > > > (3) Contexts after a restart: ------------------------------------ > After a restart, the contexts load up right away with v7.0.23 > rather than a "Service Temporarily Unavailable" as in 7.0.52. > > (4) My Questions are: ------------------------------ a.) How can I > prevent contexts from being redeployed? I have 136 contexts under > /opt/tomcat/apache/conf/Catalina/localhost/ and these are deployed > every time I restart v7.0.52 So you want Tomcat to come up immediately without any applications available? That's no fun. > I don't think JARs are scanned in 7.0.52 for things to slow down so > much. Are you sure? Take thread dumps. > Not sure if "metadata-complete=true" will help here. Running all > the FIleHandlers in FINEST mode shows nothing while contexts are > being deployed. Then you have done something wrong. When I set level=FINEST, I get so much logging it noticeably slows down the startup of my Tomcat instance. > But I can see time being spent as each context is deployed. > > b) I want to speed up the startup times in v7.0.52 drastically. How long does Tomcat take to launch if you have no web applications? - -chris -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 Comment: GPGTools - http://gpgtools.org Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQIcBAEBCAAGBQJTPY7tAAoJEBzwKT+lPKRY/X4P/09VdkSTyuyQuKB5fDky+eFq DzpTGRWcLWhFb+nUbIhq6k7VCxXn7UhmtLE7Gsg0XiJf6xguouaxVtuJuD/8XzXm VFplalAWa0IH0FfhXDqPOtN08sGIY7KxsjHemt+Kfa6ApCrtDbcnK8okp9J2BJln hXlCUwuQ+shfv4bngkdT1c7woBP/cWJsy9Y56nb2VL3mNZpDqsKg6ec2YeXOxGGT iJiuqJiqJk6C2cA/k1qpIa56uq1xH3vzK943My9gilSVwJ9CfAqo9GRdt6uCWT9P ryiTRh0Oss3IgnwPA3S5ysVRtEVG+g4lFT3SlCgn3O/MTI8V+mMLgJpU09qqWG2F Efbe1VDDVaa8uJa5GoqfTGvlyJPa39t6xnJnQaSL2fOQ8qHj9BqTEzZY/BbEpgO8 gKdGn4SgVNmIf1nKAEiDx1dnpyoLZSWrT3Xy56iPMVrDQ522tsOY79xs9tjIPOjv gaMN9yCbY8mn6kv0bAzYgHTGOrLlkcNks+4VTbRiw6I/L2TxhvXs2YkMnt8KZfFt 0b2emzcXPXwRV5wXsy+5dpHi1qYuylaWrZv2skkQQqpXUEebQVMx2yznAQiJEB3a W9GyEyScrdzHBZQuR1uUlV7DCXq3VKDmxtBA1Ti/bwfns1l5oSa3E2nnnF7RVW47 IXOtJRE9sz2iegTy3ld/ =5gve -----END PGP SIGNATURE----- --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
