Thank you Michael, I will investigate this. Dominique
Le lun. 23 janv. 2023 à 17:37, Michael Gibney <mich...@michaelgibney.net> a écrit : > Based on the behavior you describe and the version you're running, it > might be worth taking a look at > https://issues.apache.org/jira/browse/SOLR-13336 > > On Mon, Jan 23, 2023 at 9:39 AM Dominique Bejean > <dominique.bej...@eolya.fr> wrote: > > > > Hi, > > > > On a SolrCloud 7.7 environment with 14 servers, we have one collection > with > > 1 billion documents. > > Sharding is 7 shards x 2 replicas (TLOG) > > Each solr server hosts one replica. > > > > Indexing and searching are permanent. > > > > Suddenly one of the server has CPU usage growing during 30 minutes. > > Sometimes during a few minutes the CPU usage decreases on this node and > > increases on other nodes. > > Here is a screenshot of CPU monitoring > > > https://drive.google.com/file/d/1Fp9oiZ8Sl7hb97utN2JRIm7dJKh0St3H/view?usp=share_link > > > > WARN logs do not provide any relevant information > > Customer did not generate thread dump. > > > > Any idea of what tasks can generate this kind of CPU behaviour ? > > > > Huge merge on a shard leader won't be so long and only one node will have > > to synchronize, not all. > > > > Regards > > > > Dominique >
