Hi, Spacewalk does not create the SQLite databases that yum uses, so the first thing yum has to do is rebuild those databases on the client and this is particularly time-consuming on virtual OL5 guests.
Are these machines subscribed to ol5_latest? If so, I would strongly recommend replacing that channel with a combination of ol5_u11_base and ol5_u11_patch from ULN instead. Those two channels are significantly smaller and will be much easier for the client to rebuild during an rhn_check run. Alternatively, you can bind mount /var/cache/yum to a RAM disk so that the disk usage is non-existant. This will also dramatically improve performance. Hope that helps, Avi > On 30 Mar 2016, at 8:13 PM, Malla Reddy Madupu <[email protected]> wrote: > > Hi Guys > > Greatly appreciated for your time. > > I have a issue during spacewalk client add to the spacewalk master server. > > We have staging server where all the VMs are connected to the Oracle SAN > storage (Entry Level) > > When i am trying to add the client to the spacewalk server, there's too much > I/O generating the rhn_check process some times it's writing more than 50M > data, this process is mainly reading/ writing kjournald and Audit. because of > this system process reached to 100% waiting 80%. The client is completely > not responding hence over the monitoring system HOST DOWN alert appeared. > > I have tried with --norhnsd option, still no luck. Is there a way to minimize > the rhn_check process? is there a way to stop generating too much I/O? > > Could you please suggest some idea here? > > But noticed there's a huge difference with the OEL6. it took roughly 5min > time to add the clinet. > > Guys, pelase help me to address this issue, your help is very much > appreciated. Thank you all for you time > Best Regards > Malla > _______________________________________________ > Spacewalk-list mailing list > [email protected] > https://www.redhat.com/mailman/listinfo/spacewalk-list -- Oracle <http://www.oracle.com> Avi Miller | Product Management Director | +61 (3) 8616 3496 Oracle Linux and Virtualization 417 St Kilda Road, Melbourne, Victoria 3004 Australia
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