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, 5.0.0.M2 Reporter: Jonathan Halliday Assignee: Mark Little Fix For: 4.17.6, 5.0.0.M3 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))