2017-09-05 19:58 GMT+02:00 Vijay Bellur <[email protected]>: > On 09/04/2017 10:00 AM, Ingard Mevåg wrote: > >> Hi >> >> I'm seeing quite high cpu sys utilisation and an increased system load >> the past few days on my servers. It appears it doesn't start at exactly the >> same time for the different servers, but I've not (yet) been able to pin >> the cpu usage to a specific task or entries in the logs. >> >> The cluster is running distribute with 8nodes and 4 bricks each version >> 3.10 >> The nodes have 32 (HT) cores and 64 gigs of ram. >> >> Does anyone know what I can attribute this behaviour to? Or how I can >> figure out what is causing it? >> >> > Looking for logs of servers and clients around the spike interval is a > good place to start. Operations like self-heal in gluster can cause higher > resource utilization than normal. >
I did think that it might be related to self-heal or rebalance or something similar as it seemingly started at different times for the different members of the cluster. But I couldn't find anything in the logs that suggested that some background operation was running. I did notice the call log saying that a lot of the bricks had Pending tasks. Could it be connected to that? Or some other resource being starved? Would gluster volume status show self heal or distribute running? > > HTH, > Vijay > >
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