-1 for upgrading it in 6.1. Known devil is better than unknown angel :) In 7.0 we can try 3.5.0 with updated Erlang.
~thanks -- Best regards, Sergii Golovatiuk, Skype #golserge IRC #holser On Wed, Apr 29, 2015 at 12:20 PM, Davanum Srinivas <[email protected]> wrote: > Bogdan, > > Pacemaker, corosync etc, we picked vivid packages right? So don't we test > what's in vivid for this too? Apparently it's 3.4.3-2 per [0]. > > I agree, we should not do this in 6.1, However, we should start testing > this ASAP. > > Another data point, Alexander Nevenchannyy pointed out to me that 3.5.0 > came with an updated Erlang that has the following fix: > > OTP-11497 To prevent a race condition if there is a short communication > > problem when node-down and node-up events are received. They > > are now stored and later checked if the node came up just > > before mnesia flagged the node as down. (Thanks to Jonas Falkevik ) > > which seems interesting as well. > > thanks, > > dims > [0] https://launchpad.net/ubuntu/vivid/+package/rabbitmq-server > [1] http://www.erlang.org/download/otp_src_17.0.readme > > On Wed, Apr 29, 2015 at 4:04 AM, Bogdan Dobrelya <[email protected]> > wrote: > >> Hello. >> >> There are several concerns why we have to upgrade RabbitMQ to 3.4.0 [0]: >> 1) At least two bugfixes related to the current high-load issue with MQ >> [1]: >> - 26404 prevent queue synchronisation from hanging if there is a very >> short partition just as it starts (since 3.1.0) >> - 26368 prevent autoheal from hanging when loser shuts down before the >> winner learns it is the winner (since 3.1.0) >> 2) We should as well check how the new 'pause-if-all-down' option works >> for split brain recovery. >> 3) We should address the 'force_boot' recommendations from this mail >> thread [2] to speed up the MQ cluster assemble time. >> >> The question is - is it worth it to do this in the 6.1 release scope? >> I vote to postpone this for the 7.0 dev cycle as the impact of such >> changes might be unpredictable. >> >> [0] https://www.rabbitmq.com/release-notes/README-3.4.0.txt >> [1] https://bugs.launchpad.net/fuel/+bug/1447619 >> [2] >> >> http://www.mail-archive.com/[email protected]/msg51625.html >> >> -- >> Best regards, >> Bogdan Dobrelya, >> Skype #bogdando_at_yahoo.com >> Irc #bogdando >> > >
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