Sanjana Malhotra has uploaded this change for review. ( http://gerrit.cloudera.org:8080/24385
Change subject: IMPALA-15012: [DOCS] Documentation for client-side bottleneck identification ...................................................................... IMPALA-15012: [DOCS] Documentation for client-side bottleneck identification Updates the performance tuning docs to cover the following ImpalaServer query profile metrics: - ClientFetchWaitTimer & ClientFetchWaitTimeStats - ClientFetchLockWaitTimer - GetInFlightProfileTimeStats Explains how a high ClientFetchWaitTimer is relative to total query duration indicates the client is slow to fetch results, which backpressures Impala's pipelined execution. Change-Id: Iaaf2e4cc069c2af9f66b30175d43b8abb30036c0 --- M docs/topics/impala_explain_plan.xml 1 file changed, 32 insertions(+), 3 deletions(-) git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/85/24385/2 -- To view, visit http://gerrit.cloudera.org:8080/24385 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-Project: Impala-ASF Gerrit-Branch: master Gerrit-MessageType: newchange Gerrit-Change-Id: Iaaf2e4cc069c2af9f66b30175d43b8abb30036c0 Gerrit-Change-Number: 24385 Gerrit-PatchSet: 2 Gerrit-Owner: Sanjana Malhotra <[email protected]> Gerrit-Reviewer: Quanlong Huang <[email protected]> Gerrit-Reviewer: Sanjana Malhotra <[email protected]>
