createIndex from mongod.log

(tje@host) ~$ tail -f /var/log/mongodb/mongod.log | grep -C 3 -i createindex
{"t":{"$date":"2025-06-19T14:31:34.797-05:00"},"s":"I",  "c":"INDEX",    "id":20438,   "ctx":"conn110987","msg":"Index build: registering","attr":{"buildUUID":{"uuid":{"$uuid":"37c2188b-bc41-4637-bf7d-1213f6a3524f"}},"namespace":"Mismo.attachments","collectionUUID":{"uuid":{"$uuid":"2d1f63bb-53ca-4e95-a56c-d0de7441bad6"}},"indexes":1,"firstIndex":{"name":"checksum_1"},"command":{"createIndexes":"attachments","v":2,"indexes":[{"unique":true,"name":"checksum_1","key":{"checksum":1}}],"ignoreUnknownIndexOptions":false}}}
{"t":{"$date":"2025-06-19T14:31:34.797-05:00"},"s":"I",  "c":"STORAGE",  "id":4715500, "ctx":"conn110987","msg":"Too many index builds running simultaneously, waiting until the number of active index builds is below the threshold","attr":{"numActiveIndexBuilds":3,"maxNumActiveUserIndexBuilds":3,"indexSpecs":[{"unique":true,"name":"checksum_1","key":{"checksum":1},"v":2}],"buildUUID":{"uuid":{"$uuid":"37c2188b-bc41-4637-bf7d-1213f6a3524f"}},"collectionUUID":{"uuid":{"$uuid":"2d1f63bb-53ca-4e95-a56c-d0de7441bad6"}}}}
{"t":{"$date":"2025-06-19T14:31:34.802-05:00"},"s":"I",  "c":"CONNPOOL", "id":22576,   "ctx":"ReplNetwork","msg":"Connecting","attr":{"hostAndPort":"172.20.0.1:27017"}}
{"t":{"$date":"2025-06-19T14:31:34.802-05:00"},"s":"I",  "c":"NETWORK",  "id":22943,   "ctx":"listener","msg":"Connection accepted","attr":{"remote":"172.20.0.1:42984","isLoadBalanced":false,"uuid":{"uuid":{"$uuid":"60fed161-8752-44ec-b63a-062f7be9bf5d"}},"connectionId":110989,"connectionCount":63}}