Hi, We are running a 7.4.0 solr cluster with 3 tlogs and a few pulls. There is one collection divided into 8 shards, with each tlog has all 8 shards, and each pull either has shard1 to 4 or shard5 to 8.
When using jmx to collect num_docs metrics via datadog, we found that the metrics for some shards are missing. For example, on one tlog, we saw only num_docs stats for shard3/4/5/8 and on another shard1/2/3/4/5/8. There seems to be more max_doc, but it's also missing for some shards. This only happens to the tlog instances so far. Restarting the solr process does not help. Did anyone encounter this before? What should I do next to continue to troubleshoot this? Thanks, Zehua