[Pacemaker] Pacemaker memory usage

[David Vossel]

----- Original Message -----
> 
> 
> Hi,
> 
> 
> 
> We are trying to introduce clustering to our embedded environment using
> pacemaker and corosync.
> 
> Our environment includes following packages and modules for the initial test:
> 
> 1. Pacemaker – version 1.1.10
> 
> 2. Corosync - version 2.3.4
> 
> 3. Corosync.conf file find it attached to this email thread
> 
> 4. 2 Nodes in the cluster (master and slave)
> 
> 5. Test app1 that publishes some sensor data (only Master node publishes,
> slave node just receives the data)
> 
> 6. Test app2 that receives the published data and outputs on the screen (only
> master node outputs the data on the screen)
> 
> 
> 
> Our test has been successful and we are able to create a cluster with 2 nodes
> and everything seems to be working fine. However we observed that pacemaker
> is consuming approx. 80MB of RAM when both the test applications are alive.

80M is more than I would expect.

One thing I know you can do is lower the IPC buffer size. That can be done in
/etc/sysconfig/pacemaker. Set the PCMK_ipc_buffer to something smaller than
whatever it defaults to.

-- Vossel



> 
> We would like to know if there are any configuration settings or fine tuning
> that we need to perform to reduce the memory usage. It is very critical to
> reduce the memory consumption as we are running it in embedded environment.
> 
> 
> 
> Thanks,
> Santosh Bidaralli
> 
> 
> 
> 
> 
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