Jonathan Halliday created JBTM-1712: --------------------------------------- Summary: perf problem in FileSystemStore.openAndLock Key: JBTM-1712 URL: https://issues.jboss.org/browse/JBTM-1712 Project: JBoss Transaction Manager Issue Type: Enhancement Security Level: Public (Everyone can see) Components: Transaction Core Affects Versions: 4.16.4 Reporter: Jonathan Halliday Assignee: Tom Jenkinson if(!file.exits()) { if(createHierarchy(file)) incorrectly calls the expensive (because synchronized) createHierarchy method in the common case where the file does not exist (because it's a uniq named new tx record) but the directory hierarchy does (because it's the create-once hashed dir tree). This causes excessive contention on the FileSystemStore instance object monitor lock. Should probably be something more like if(!file.getParent().exists()) { if(createHierarchy(file)) -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira