1. I found a similar issue in this version of Solr here https://github.com/clarin-eric/VLO/issues/291 , They suggest using solr.cloud.client.stallTime to mitigate it. But I think fixing the commit issue will solve this problem too. 4. The delete query was supposed to only mark the document inside each segment as deleted.
Do you know if the throughput of updating documents increased a lot? In the stats of SolrAdmin is possible to see how frequently commits are happening. If it is a lot, this fix of avoid send commit command and have hardCommit and SoftCommit configured can help you. Let's wait for other suggestions here too. Em seg., 12 de abr. de 2021 às 18:51, Rekha Sekhar <[email protected]> escreveu: > Hi, > > Thank you for the information. We will try out the below suggestions. > > I have a few more questions, which are facing in the application. > > The application has *2 solr (v 8.4.1)* and *3 Zookeeper (v3.6.2) *running > in SolrCloud mode. > After running it for few days we could see below error in logs - > 2021-04-12 11:04:26.850 ERROR (qtp1632497828-1072) [c:datacore s:shard1 > r:core_node4 x:datacore_shard1_replica_n2] o.a.s.u.SolrCmdDistributor > java.io.IOException: *Request processing has stalled for 90083ms with 100 > remaining elements in the queue*. > and > 2021-04-12 09:00:36.350 ERROR (qtp1632497828-786) [c:datacore s:shard1 > r:core_node4 x:datacore_shard1_replica_n2] o.a.s.s.HttpSolrCall > null:java.io.IOException: *Task queue processing has stalled for 90175 ms > with 92 remaining elements to process.* > > > 1. What do these error messages mean? How can we resolve this? > 2. After getting these messages, the 2 Solr nodes show different document > count and delete count. It seems the 2 Solr nodes are not sync(screenshot > attached for reference). > 3. One of the nodes (not leader) goes to a recovering state forever. > 4.In the solr update requests of 1 Lakh records, there are few thousands of > delete query as well. Do the delete query introduce more slowness in > synching the nodes > > The above messages are coming frequently from both the Solr nodes and > finally one node goes to a recovering state forever. > > Could you please help by answering the above queries. > > Thanks, > Rekha > -- Abraços Carlos Sponchiado
