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Posted to users@tomcat.apache.org by vbck <vi...@bmc.com> on 2014/10/30 01:39:46 UTC
BLOCKED reaper thread (and all other BLOCKED threads) waiting on
one thread that is BLOCKED waiting on that reaper thread
"MidTier-ServerReaper-name.domain.com" - Thread t@749
java.lang.Thread.State: BLOCKED
at com.<named>.permissions.Group.getAllInstances(Unknown Source)
- waiting to lock <54cfdee6> (a java.lang.String) owned by "Thread-678"
t@751
[ ]
"Thread-678" - Thread t@751
java.lang.Thread.State: BLOCKED
at com.<named>.share.BaseDataCache. (Unknown Source)
- waiting to lock <7e819f5> (a java.util.Hashtable) owned by
"MidTier-ServerReaper-<name.domain.com>" t@749
[ ]
"Thread-679" - Thread t@752
java.lang.Thread.State: BLOCKED
at com.<named>.service.DHTMLService.getHTMLData(Unknown Source)
- waiting to lock <751833aa> (a com.<named>.service.DHTMLService) owned by
"Thread-678" t@751
[ ]
"Thread-680" - Thread t@753
java.lang.Thread.State: BLOCKED
at com.<named>.service.DHTMLService.getHTMLData(Unknown Source)
- waiting to lock <751833aa> (a com.<named>.service.DHTMLService) owned by
"Thread-678" t@751
[ ]
"Thread-681" - Thread t@754
java.lang.Thread.State: BLOCKED
at com.<named>.service.DHTMLService.getJSData(Unknown Source)
- waiting to lock <751833aa> (a com.<named>.service.DHTMLService) owned by
"Thread-678" t@751
[ ]
. . . same waiting to lock state for all BLOCKED threads
NOTE:
These are intentional replacements substituting for actual values
<named>
<name.domain.com>
--
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Re: BLOCKED reaper thread (and all other BLOCKED threads) waiting on
one thread that is BLOCKED waiting on that reaper thread
Posted by David Bullock <da...@machaira.com.au>.
Seems like BMC have a lock-ordering problem leading to deadlock. What's it
got to do with Tomcat?
*David BullockMachaira Enterprises Pty Ltd*
PO Box 31
Canowindra NSW 2804
02 6344 1100
http://machaira.com.au/
On 30 October 2014 11:39, vbck <vi...@bmc.com> wrote:
> "MidTier-ServerReaper-name.domain.com" - Thread t@749
> java.lang.Thread.State: BLOCKED
> at com.<named>.permissions.Group.getAllInstances(Unknown Source)
> - waiting to lock <54cfdee6> (a java.lang.String) owned by
> "Thread-678"
> t@751
> [ ]
>
> "Thread-678" - Thread t@751
> java.lang.Thread.State: BLOCKED
> at com.<named>.share.BaseDataCache. (Unknown Source)
> - waiting to lock <7e819f5> (a java.util.Hashtable) owned by
> "MidTier-ServerReaper-<name.domain.com>" t@749
> [ ]
>
> "Thread-679" - Thread t@752
> java.lang.Thread.State: BLOCKED
> at com.<named>.service.DHTMLService.getHTMLData(Unknown Source)
> - waiting to lock <751833aa> (a com.<named>.service.DHTMLService)
> owned by
> "Thread-678" t@751
> [ ]
>
> "Thread-680" - Thread t@753
> java.lang.Thread.State: BLOCKED
> at com.<named>.service.DHTMLService.getHTMLData(Unknown Source)
> - waiting to lock <751833aa> (a com.<named>.service.DHTMLService)
> owned by
> "Thread-678" t@751
> [ ]
>
> "Thread-681" - Thread t@754
> java.lang.Thread.State: BLOCKED
> at com.<named>.service.DHTMLService.getJSData(Unknown Source)
> - waiting to lock <751833aa> (a com.<named>.service.DHTMLService)
> owned by
> "Thread-678" t@751
> [ ]
>
> . . . same waiting to lock state for all BLOCKED threads
>
>
> NOTE:
> These are intentional replacements substituting for actual values
>
> <named>
> <name.domain.com>
>
>
>
> --
> View this message in context:
> http://tomcat.10.x6.nabble.com/BLOCKED-reaper-thread-and-all-other-BLOCKED-threads-waiting-on-one-thread-that-is-BLOCKED-waiting-ond-tp5024701.html
> Sent from the Tomcat - User mailing list archive at Nabble.com.
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
> For additional commands, e-mail: users-help@tomcat.apache.org
>
>