Hello, could the underlying hardware cause the delay? Maybe the OS has cached some data and don’t need to read it from disk again?
Maybe you can check the IO and CPU load during startup and compare. > -----Ursprüngliche Nachricht----- > Von: Jerry Malcolm <techst...@malcolms.com> > Gesendet: Mittwoch, 28. September 2022 04:54 > An: users@tomcat.apache.org > Betreff: Re: Slow startup first time after reboot > > Neil, > > Sadly, that line doesn't appear either with or without the java.security.egd > option. That appears to be a lump sum of 4-5 minutes for the > SecureRandom seed thing. I'm getting a total accumulation of ~5 > minutes. But it's made up of a bunch of ~15-sec web starts. See example > below. Same two lines from Catalina.out from the first boot and a second > boot. > > One other clue I've noted. The quick boot occurs on an immediate > stop/start. I have noticed a couple of times in Eclipse that if I stop TC and > leave it stopped for a while, it goes back to the long startup. It sounds like > something related to loading modules/jarFiles. On an immediate restart the > JVM wouldn't have time to unload modules before they are needed > again. But a new loading of some module on each web app might be what's > killing it (??) > > JVM Version: 11.0.16+8-LTS > JVM Vendor: Red Hat, Inc. > > Auto-startup of TC on EC2 startup: > > 28-Sep-2022 00:15:55.612 INFO [main] > org.apache.catalina.startup.HostConfig.deployDirectory Deployment > of web application directory > [/var/domains/wridz.com/webapps/idmanager] has finished in [16,991] ms > [1 example... ~20 more like it] > > 28-Sep-2022 00:18:40.818 INFO [main] > org.apache.catalina.startup.Catalina.start Server startup in [306666] > milliseconds > > Reboot of TC > > 28-Sep-2022 02:28:45.854 INFO [main] > org.apache.catalina.startup.HostConfig.deployDirectory Deployment > of web application directory > [/var/domains/wridz.com/webapps/idmanager] has finished in [737] ms [1 > example... ~20 more like it] > > 28-Sep-2022 02:28:51.476 INFO [main] > org.apache.catalina.startup.Catalina.start Server startup in [19795] > milliseconds > > On 9/27/2022 8:32 PM, Neil Aggarwal wrote: > >> Are there perhaps > >> some log levels I could change that would provide more detailed > >> information about what step it's hung up on for loading these web apps? > > I just tested this on a dev sever. > > I removed the java.security.egd option and rebooted my server. > > > > Once I waited for Tomcat to finish starting up, catalina.out had this line: > > WARNING [main] > > org.apache.catalina.util.SessionIdGeneratorBase.createSecureRandom > > Creation of SecureRandom instance for session ID generation using > > [SHA1PRNG] took [222,741] milliseconds. > > > > Check if your log has something similar. > > > > Thank you, > > Neil > > > > -- > > Neil Aggarwal, (972) 834-1565, http://www.propfinancing.com We offer > > 30 year loans on single family houses! > > > > --------------------------------------------------------------------- > > 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 --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
