JBoss is slow to start when hosting large amounts of static content or large jars with many files and packages
Issue
- JBoss is very slow to start when hosting large amounts of static content or large jars with many packages
-
The logging during this time shows only the following types of "Indexed pkg" TRACE messages:
TRACE [org.jboss.mx.loading.ClassLoaderUtils] Indexed pkg: ROOT.war.images, UCL: org.jboss.mx.loading.UnifiedClassLoader3@1ed54a0{ url=file:/path/to/jboss-as/server/default/deploy/jboss-web.deployer/ ,addedOrder=6} - The thread dumps show the main thread continuously hitting the filesystem during this time:
"main" prio=1 tid=0x081481b8 nid=0x7f74 runnable [0x301ca000..0x301ccfa0] at java.io.UnixFileSystem.list(Native Method) at java.io.File.list(File.java:937) at java.io.File.listFiles(File.java:1093) at org.jboss.mx.loading.ClassLoaderUtils$FileIterator.getNextEntry(ClassLoaderUtils.java:501) at org.jboss.mx.loading.ClassLoaderUtils$ClassPathIterator.getNextEntry(ClassLoaderUtils.java:618) at org.jboss.mx.loading.ClassLoaderUtils.updatePackageMap(ClassLoaderUtils.java:320) at org.jboss.mx.loading.ClassLoaderUtils.updatePackageMap(ClassLoaderUtils.java:254) at org.jboss.mx.loading.UnifiedLoaderRepository3.updatePackageMap(UnifiedLoaderRepository3.java:813)
Environment
- JBoss Enterprise Application Platform (EAP) 4.3
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