Ian Boston created DS-1396:
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Summary: Very slow startup on Linux Platforms
Key: DS-1396
URL: https://jira.duraspace.org/browse/DS-1396
Project: DSpace
Issue Type: Bug
Affects Versions: 3.0
Environment: Linux version 2.6.32-38-server (buildd@allspice) (gcc
version 4.4.3 (Ubuntu 4.4.3-4ubuntu5) )
/usr/lib/jvm/java-6-sun/bin/java
-Djava.util.logging.config.file=/usr/local/tomcat7/conf/logging.properties
-Djava.awt.headless=true -Djava.security.egd=file:/dev/./urandom -Xms256m
-Xmx800m -XX:PermSize=256m -XX:NewSize=64m -server -XX:+UseConcMarkSweepGC
-Djava.net.preferIPv4Stack=true
-Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager
-Djava.endorsed.dirs=/usr/local/tomcat7/endorsed -classpath
/usr/local/tomcat7/bin/bootstrap.jar:/usr/local/tomcat7/bin/tomcat-juli.jar
-Dcatalina.base=/usr/local/tomcat7 -Dcatalina.home=/usr/local/tomcat7
-Djava.io.tmpdir=/tmp/tomcat7-tmp org.apache.catalina.startup.Bootstrap start
Reporter: Ian Boston
Priority: Critical
I am experiencing extremely slow startup times for DS3-rc3 on Linux with the
stock sun JVM, and I have experienced total hangs 11:19-15:09 of the JVM with
perfect operation after the end of the period (no restart of any form was
required). By slow startup I mean just bringing up solr, xmlui and jspui can
take 60 minutes.
I think this is due to /dev/ramdom on the OS not getting sufficient entropy,
probably caused by the Bouncy Castle crypto APIs or the new SecureRandom() in
Eperson.
performing a
find /
as root appears to unstick the JVM on startup, pointing to an entropy issue
(find / will cause disk I/O not from cache generating low level device driver
entropy)
Has anyone else seen these issues ?
Is there a known fix (other than performing a find)
I have already tried -Djava.security.egd=file:/dev/./urandom
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