[KUDU-2270] Allow long RPC duration which triggers logging to be configurable

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 1.7.0
• Fix Version/s: 1.7.0
• Component/s: rpc
• Assignee: Michael Ho
• Reporter: Michael Ho
• Created: 24/Jan/18 03:23
• Updated: 24/Jan/18 23:28
• Resolved: 24/Jan/18 23:28

Description

Rpczstore::LogTrace will currently log some details about a RPC when the duration between when the RPC is accepted and when its RPC handler completes takes longer than 1000 ms. While this threshold may be reasonable for Kudu, a busy Impala demon utilizing KRPC can easily exceed this threshold. It'd be nice to allow this threshold of 1000ms to be configurable to reduce the log spew when running Impalad with KRPC. Please also see IMPALA-6356.

Issue Links

• blocks: IMPALA-6356 Excessive synchronous logging in RpczStore::LogTrace causes severe slowdown for exchange operators spanning 2-3 minutes