Re: [jgroups-users] Locks get locked forever after a cluster members leaves
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Re: [jgroups-users] Locks get locked forever after a cluster members leaves
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From: Questions/problems r. to u. J. <jav...@li...> - 2017-10-23 13:31:16
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On 23/10/17 15:27, Questions/problems related to using JGroups via javagroups-users wrote: > > 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. That's impossible; we're talking about a Request, and Request.is_try_lock is (pretty much) immutable! >> - >> 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 >> jav...@li... >> 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 > jav...@li... > https://lists.sourceforge.net/lists/listinfo/javagroups-users > -- Bela Ban | http://www.jgroups.org |