So if you look at a EHCacheManager with respect to it's GC roots - what is holding it in place?
Mark On Sun, Nov 22, 2009 at 4:57 PM, Dorioo <[email protected]> wrote: > Yeah. Basically I reinit the app, load a page that has transfer > objects (12-36 of them) and repeat for about 30 minutes. > > 1. With Pluggable Cache: -XX:+HeapDumpOnOutOfMemoryError dumped out a > heap file and below are some values from MAT dominator > > Class: net.sf.ehcache.CacheManager > Retained Heap: 446MB > Percentage: 86.41% > > 2. With SVN Transfer - did not crash. Twice, the used heap reached > ~500MB and drastically dropped to ~100MB > > 3. Second run of pluggable cache. Hasn't crashed yet but the site is > not accessible. I used VisualVM to take a heap. > > Class: net.sf.ehcache.CacheManager > Retained Heap: 444MB > Percentage: 89.79% > > Again, I ran into this while developing because reinitializing the app > occurs often as you develop. Reiniting that often would not occur in > production so it may not be a problem but I'm just trying to > conceptually understand what's happening. I attribute the drastic drop > in the second test run to the softreferences in the SVN transfer but I > am lost on the cause of the first and third runs as you've stated that > they should be garbage collected. > > - Gabriel > > On Sat, Nov 21, 2009 at 8:02 PM, Mark Mandel <[email protected]> > wrote: > > The CacheManager should be garbage collected. > > > > What exactly is the problem you are seeing OutOfMemory errors? > > > > Mark > > > > On Sun, Nov 22, 2009 at 8:37 AM, gabriel <[email protected]> wrote: > >> > >> Disclaimer: Not a java person > >> > >> A. I have a coldbox app and every time I reinitialize the application, > >> a new instance of "net.sf.ehcache.CacheManager" is created. I've > >> looked at the heap dump and it seems like instances of that class are > >> taking up 85% of the available memory. > >> > >> What I believe is happening is that coldbox creates a new instance of > >> transfer when you reinitialize the application and transfer then > >> creates a new instance of ehcache. > >> > >> B. I'm wondering, from Transfer's perspective..... > >> > >> 1. Is the intention that only one instance of Transfer exist, say in > >> the Application scope, which ensures that only one instance of the > >> ehCache CacheManager exists as the Application scope is generally not > >> changed until you restart coldfusion? > >> > >> 2. Or, do those instances of "net.sf.ehcache.CacheManager" go away at > >> some point (doesn't seem like it) ? > >> > >> 3. Or, is there a way to manually discard them when a new instance of > >> Transfer is created? > >> > >> Thank you, > >> Gabriel > >> > >> -- > >> Before posting questions to the group please read: > >> > >> > http://groups.google.com/group/transfer-dev/web/how-to-ask-support-questions-on-transfer > >> > >> You received this message because you are subscribed to the Google > Groups > >> "transfer-dev" group. > >> To post to this group, send email to [email protected] > >> To unsubscribe from this group, send email to > >> [email protected] > >> For more options, visit this group at > >> http://groups.google.com/group/transfer-dev?hl=en > > > > > > -- > > E: [email protected] > > T: http://www.twitter.com/neurotic > > W: www.compoundtheory.com > > > > -- > > Before posting questions to the group please read: > > > http://groups.google.com/group/transfer-dev/web/how-to-ask-support-questions-on-transfer > > > > You received this message because you are subscribed to the Google Groups > > "transfer-dev" group. > > To post to this group, send email to [email protected] > > To unsubscribe from this group, send email to > > [email protected] > > For more options, visit this group at > > http://groups.google.com/group/transfer-dev?hl=en > > -- > Before posting questions to the group please read: > > http://groups.google.com/group/transfer-dev/web/how-to-ask-support-questions-on-transfer > > You received this message because you are subscribed to the Google Groups > "transfer-dev" group. > To post to this group, send email to [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/transfer-dev?hl=en > -- E: [email protected] T: http://www.twitter.com/neurotic W: www.compoundtheory.com -- Before posting questions to the group please read: http://groups.google.com/group/transfer-dev/web/how-to-ask-support-questions-on-transfer You received this message because you are subscribed to the Google Groups "transfer-dev" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/transfer-dev?hl=en
