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
