Adding Petr who is the main maintainer for Rabitmq in messaging SIG. Alfredo On Thu, Aug 11, 2022 at 4:56 PM Marcin Juszkiewicz < marcin.juszkiewicz at linaro.org> wrote: > As part of OpenStack deployments we deploy RabbitMQ. During current > cycle I looked at moving from CentOS Stream 8 to 9. > > And RabbitMQ is a problem. > > When I boot CentOS Stream 9 system and then use just built 'rabbitmq' > container memory use of "/usr/lib64/erlang/erts-12.3.2.2/bin/beam.smp" > process goes up to 1.6GB ram: > > (rabbitmq)[root at kolla-cs9 /]# rabbitmq-diagnostics memory_breakdown > Reporting memory breakdown on node rabbit at kolla-cs9... > other_system: 1.6233 gb (68.59%) > allocated_unused: 0.5164 gb (21.82%) > binary: 0.1551 gb (6.55%) > code: 0.0356 gb (1.51%) > other_proc: 0.0184 gb (0.78%) > connection_other: 0.0037 gb (0.16%) > other_ets: 0.0036 gb (0.15%) > queue_procs: 0.0021 gb (0.09%) > plugins: 0.0021 gb (0.09%) > connection_readers: 0.0021 gb (0.09%) > atom: 0.0014 gb (0.06%) > mgmt_db: 0.001 gb (0.04%) > metrics: 8.0e-4 gb (0.03%) > connection_writers: 4.0e-4 gb (0.02%) > connection_channels: 4.0e-4 gb (0.02%) > mnesia: 3.0e-4 gb (0.01%) > msg_index: 0.0 gb (0.0%) > quorum_ets: 0.0 gb (0.0%) > stream_queue_procs: 0.0 gb (0.0%) > stream_queue_replica_reader_procs: 0.0 gb (0.0%) > queue_slave_procs: 0.0 gb (0.0%) > quorum_queue_procs: 0.0 gb (0.0%) > stream_queue_coordinator_procs: 0.0 gb (0.0%) > reserved_unallocated: 0.0 gb (0.0%) > > If I boot the same container on Debian host then same process uses 0.2GB > ram: > > (rabbitmq)[root at debian /]# rabbitmq-diagnostics memory_breakdown > Reporting memory breakdown on node rabbit at debian... > binary: 0.2787 gb (70.2%) > code: 0.0355 gb (8.93%) > other_system: 0.0255 gb (6.44%) > other_proc: 0.0209 gb (5.26%) > connection_other: 0.0108 gb (2.72%) > mgmt_db: 0.0073 gb (1.84%) > plugins: 0.0048 gb (1.2%) > other_ets: 0.0037 gb (0.93%) > connection_readers: 0.003 gb (0.75%) > queue_procs: 0.0028 gb (0.7%) > atom: 0.0015 gb (0.37%) > metrics: 0.0011 gb (0.28%) > connection_channels: 8.0e-4 gb (0.21%) > mnesia: 4.0e-4 gb (0.1%) > connection_writers: 2.0e-4 gb (0.05%) > msg_index: 0.0 gb (0.01%) > quorum_ets: 0.0 gb (0.01%) > stream_queue_procs: 0.0 gb (0.0%) > stream_queue_replica_reader_procs: 0.0 gb (0.0%) > queue_slave_procs: 0.0 gb (0.0%) > quorum_queue_procs: 0.0 gb (0.0%) > stream_queue_coordinator_procs: 0.0 gb (0.0%) > allocated_unused: 0.0 gb (0.0%) > reserved_unallocated: 0.0 gb (0.0%) > > > So I started checking. Maybe it is a problem of Erlang/RabbitMQ packages > provided by RabbitMQ team? > > Booted CS9 system and deployed OpenStack using Debian based containers. > Again 1.6GB memory use. > > So let build CS9 based containers using Erlang/RabbitMQ from CentOS > Stream 9 "messaging/rabbitmq-38" repository. Again 1.6GB memory use. > > I am wondering what is a reason? > > And what is proper solution? > > > For now I only know not-acceptable solution: deploy OpenStack using > Debian or Ubuntu and forget about CentOS Stream 9 and rest of RHEL 9 > family. > _______________________________________________ > CentOS-devel mailing list > CentOS-devel at centos.org > https://lists.centos.org/mailman/listinfo/centos-devel > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos-devel/attachments/20220811/a419cf82/attachment-0003.html>