DO NOT REPLY [Bug 51150] Add DecimalFormatCache.clean() method to prevent memory leak with Tomcat
https://issues.apache.org/bugzilla/show_bug.cgi?id=51150 --- Comment #1 from Unlogic unlo...@unlogic.se 2011-05-18 06:39:00 UTC --- I checked out the code from the FOP 1.0 tag and looked at the DecimalFormatCache. From what I can see this type of caching using ThreadLocal will not work well any environment where thread pools are used and where applications can be deployed and undeployed in runtime such as J2EE web applications. A workaround until a fix is out is to create a new thread for each PDF generation and the let the thread from the thread pool call the join() method on the new thread. This resolves the memory leak but on other hand makes the cache essentially pointless. -- Configure bugmail: https://issues.apache.org/bugzilla/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are the assignee for the bug.
DO NOT REPLY [Bug 51150] Add DecimalFormatCache.clean() method to prevent memory leak with Tomcat
https://issues.apache.org/bugzilla/show_bug.cgi?id=51150 Unlogic unlo...@unlogic.se changed: What|Removed |Added CC||unlo...@unlogic.se -- Configure bugmail: https://issues.apache.org/bugzilla/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are the assignee for the bug.
DO NOT REPLY [Bug 51150] Add DecimalFormatCache.clean() method to prevent memory leak with Tomcat
https://issues.apache.org/bugzilla/show_bug.cgi?id=51150 --- Comment #2 from Unlogic unlo...@unlogic.se 2011-05-18 12:12:27 UTC --- I've done some more research and from what I can see DecimalFormatCache is the only place in the FOP source where ThreadLocal is used. So there doesn't seem to be any more memory leaks in the FOP code related to ThreadLocal. Would a patch that which simply removes the DecimalFormatCache be accepted until a better solution comes around? -- Configure bugmail: https://issues.apache.org/bugzilla/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are the assignee for the bug.
DO NOT REPLY [Bug 51150] Add DecimalFormatCache.clean() method to prevent memory leak with Tomcat
https://issues.apache.org/bugzilla/show_bug.cgi?id=51150 --- Comment #3 from Andreas L. Delmelle adelme...@apache.org 2011-05-18 18:28:19 UTC --- (In reply to comment #2) I've done some more research and from what I can see DecimalFormatCache is the only place in the FOP source where ThreadLocal is used. So there doesn't seem to be any more memory leaks in the FOP code related to ThreadLocal. Would a patch that which simply removes the DecimalFormatCache be accepted until a better solution comes around? No, unless it also solves the issue that prompted the use of ThreadLocal to begin with. The reason why this is so, is because DecimalFormat is not thread-safe. This could potentially lead to weird behavior in case of multiple concurrent runs in the same JVM. As for an alternative solution that would make sense: do something similar to what was done for color profiles, i.e. make sure all usage of DecimalFormat is properly synchronized. -- Configure bugmail: https://issues.apache.org/bugzilla/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are the assignee for the bug.
