'mongodb slow queries from time to time - reason unknown
I have from time to time delayed requests from past few days from my single shard cluster database , but not sure where this comes from , everything seems to be fine on storage/cpu and memory , normally this queries based on index are executed in < 50ms even at 10000 requests/sec , any ideas are highly welcome?
Example delayed query:
2022-04-19T11:11:34.702+0200 I COMMAND [conn7420156] command testdb.testcol command: find { find: "testcol", readConcern: { level: "linearizable" }, filter: { a.p.prid: "37011" }, maxTimeMS: 16000, $db: "test", $clusterTime: { clusterTime: Timestamp(1650359489, 2054), signature: { hash: BinData(0, EFB437ED731ED3ADA61B61AAAD45EB516A82A8A3), keyId: 7036792998071370037 } }, lsid: { id: UUID("6e8e0cbb-a52e-4c92-a259-0e836bde61f3") } } nShards:1 cursorExhausted:1 numYields:0 nreturned:1 reslen:66731 protocol:op_msg 5196ms
Sources
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