Hi all I got an error when I was doing index operation: "2019-09-18 02:35:44.427244 ... No registered leader was found after waiting for 4000ms , collection: foo slice: shard2"
Beside it, there is no other error in solr log. Collection foo have 2 shards, then I check their jvm gc log: * 2019-09-18T02:34:08.252+0000: 150961.017: Total time for which application threads were stopped: 10.4617864 seconds, Stopping threads took: 0.0005226 seconds * 2019-09-18T02:34:30.194+0000: 151014.108: Total time for which application threads were stopped: 44.4809415 seconds, Stopping threads took: 0.0005976 seconds I saw there are long gc pauses at the near timepoint. My questions: * Is this error possible caused by "long gc pause"? my solr zkClientTimeout=60000 * If so, how can I prevent this error happen? My thoughts: using G1 collector (as https://cwiki.apache.org/confluence/display/SOLR/ShawnHeisey#ShawnHeisey-GCTuningforSolr) or enlarge zkClientTimeout again, what's your idea? Thanks.
