linux ubuntu 系统中重启tomcat过慢的解决

Fresh Tomcat takes loong time to start up

October 7, 2014 17.8kviews
 

So I'm new to digitalOcean.
I began with ubuntu server and ran an tomcat installation on it according to this tutorial

And server start up takes really long time ("INFO: Server startup in 518366 ms"). I have one app on it that only has index.html file in it, just for testing.

What could be the cause of this? Is the Lowest bugget option on digitalocean really that slow?

 
  • Just wanted to update this thread if anyone comes across it. The solution was kind of hidden amongst comments and on a hard to find page:

    *On the the JAVA_OPTS line, add the following: -Djava.security.egd=file:/dev/./urandom"
    *

    Also - interestingly, after testing more with this, it seems that installing haveged (just apt-get install haveged with it's default settings) does work as well. (without the additional line above).

    (and using haveged is better for security due to the loss of true entropy on non-blocking /dev/urandom)

  • +1. saved my time. i am using $5 plan.

    apt-get install haveged
    
  • +1. 
    thanks for this @juriyfoboss.

    haveged worked for me like a charm.

    apt-get install haveged
    
  • I am using $5 plan, too.

    apt-get install haveged
    

    does the trick. Thanks to @juriyfoboss

8 Answers

Modify JAVA_OPTS in catalina.sh to get this up quickly. It didn't seem to take effect under /etc/default/tomcat7 for me. What is important is the java.security.egd line. (Update the library path as needed.)

JAVA_OPTS="-Djava.library.path=/usr/local/apr/lib -Djava.security.egd=file:/dev/./urandom -Djava.awt.headless=true -Xmx1024m -XX:MaxPermSize=512m -XX:+UseConcMarkSweepGC"

Another way is changing the option directly on the file. Check this: Check this: http://stackoverflow.com/questions/26431922/tomcat7-starts-too-late-on-ubuntu-14-04-x64-digitalocean. This resolved my problem.

This worked for me apt-get install haveged. It took me minutes for my page to reload for a restart.

+1.
This was hugely helpful. Solved the problem instantly just by installing haveged with defaults. 
Thanks @juriyfoboss .

just installing haveged on Centos did not solve the issue, you have to start haveged service.

+1 to installing haveged. Thanks bro!

How is it that it takes a full day to get Tomcat up and running and so long to find this answer? I found this on the third page of google search. It would behoove DO to be on top of these, especially with such a simple setup - Ubuntu + Tomcat if they want to be a player.

 
原文地址:https://www.cnblogs.com/lyd96321/p/6428769.html