Hi! Is it possible to run ActiveMQ in Master/Slave scenario using SMB as shared fs on Linux? Have anyone proved it to work?
I've searched this mail list and other resources and have not found a lot of documentation on this topic. Few pages say that either it should work or it works only for Windows SMB. I have decided to try it - in short words, it does not work for our setup. Long description of whole setup below. I'm trying to run ActiveMQ 5.15.0 in Master/Slave scenario with SMB3.0 (all according to https://docs.microsoft.com/en-us/azure/storage/files/storage-how-to-use-files-linux , both VMs can use shared folder properly) as shared fs on Linux (being concrete, docker containers running on alpine images on Centos 7.5). We use KahaDB as storage and it works perfectly fine with NFSv4 and fails on Slave takeover with SMB. After installation, everything looks fine and promising. One of containers is up and running in master mode, while the other one is "slave mode waiting a lock to be acquired". Then, after restart/removal of Master instance, Slave takes over lock for very short time (in logs I can see that storage is started and lock is acquired). Shortly after that, it fails with "localhost, no longer able to keep the exclusive lock so giving up being a master" and everything starts to stop one by one. Whole folder with data is corrupted and ActiveMQ fails to start (same error with "no longer able ..." as above), even if there is only one instance of broker using shared fs. Any clues what is wrong there? My approach may be naive, I have only changed shared fs from NFSv4 to SMB - everything else is the same. Kind regards, Cezary Kujawski -- Sent from: http://activemq.2283324.n4.nabble.com/ActiveMQ-User-f2341805.html
