Re: [jgroups-users] Locks get locked forever after a cluster members leaves
Questions/problems related to using JGroups via javagroups-users <[email protected]> Mon, 23 Oct 2017 15:27:32 +0200
| Newsgroups | gmane.comp.java.javagroups.general |
|---|---|
| Message-ID | <mailman.16335.1508765264.12767.javagroups-users@lists.sourceforge.net> |
Met vriendelijke groet / Kind regards, Bram Klein Gunnewiek | Shock Media B.V. Tel: +31 (0)546 - 714360 Fax: +31 (0)546 - 714361 Web: https://www.shockmedia.nl/ On 10/23/2017 03:15 PM, Questions/problems related to using JGroups wrote: > > > On 23/10/17 15:05, Questions/problems related to using JGroups via javagroups-users wrote: > >>> What do you mean? You must have called Lock.lock(), right? Below you mention that all lock() calls are changed into corresponding tryLock() calls, but the output you showed clearly indicate that the queue has a regular lock() request by 373 pending, followed by a tryLock() request... >> >> I need some more time to reply to your first response but this one is easy. I *never* use a regular lock() call on the JGroups lock (I wrap them, see example), the only calls done on the JGroups lock are tryLock(..) calls. > > Well, why am I seeing a regular lock() request in the queue then (see the first queue element below)? > > queue: > L(writelock/regular/instance_2_1/,40388::373) > TL(writelock/regular/instance_2_1/,45507::413,20000) > > The first queued lock request is clearly a Request for a lock() , *not* a tryLock()! I'll check this again. What my assumption whas that something had reset the is_trylock flag while the lock was still in the queue but I could be wrong. > > - > Bela Ban | http://www.jgroups.org > > > ------------------------------------------------------------------------------ > Check out the vibrant tech community on one of the world's most > engaging tech sites, Slashdot.org! http://sdm.link/slashdot > _______________________________________________ > javagroups-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/javagroups-users ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ javagroups-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/javagroups-users