Tim Armstrong created KUDU-2996:
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Summary: Log trace when --rpc_duration_too_long_ms is exceeded
Key: KUDU-2996
URL: https://issues.apache.org/jira/browse/KUDU-2996
Project: Kudu
Issue Type: Improvement
Components: rpc
Reporter: Tim Armstrong
Assignee: Tim Armstrong
According to a conversation with [~adar], the usual way to get a trace for a
slow RPC in Kudu is to set a deadline.
In Impala we don't use RPC deadlines, so would like to get RPC traces when
--rpc_duration_too_long_ms is exceeded. In this case there is already logging,
but only metrics are included:
https://github.com/cloudera/kudu/blob/978cf39/src/kudu/rpc/rpcz_store.cc#L268
We should log the trace in this case. Adar pointed out that we should not log a
redundant trace if it was already logged for the RPC deadline.
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