Hello Lars Volker, Tim Armstrong,
I'd like you to reexamine a change. Please visit
http://gerrit.cloudera.org:8080/9012
to look at the new patch set (#3).
Change subject: IMPALA-2397: Use atomics for IntGauge and IntCounter
......................................................................
IMPALA-2397: Use atomics for IntGauge and IntCounter
This change removes the spinlock in IntGauge and IntCounter
and uses AtomicInt64 instead. As shown in IMPALA-2397, multiple
threads can be contending for the spinlocks of some global metrics
under concurrent queries.
This change also breaks up SimpleMetric is renamed to ScalarMetric
and broken into two subclasses:
- LockedMetric:
- a value store for any primitive type (int,float,string etc).
- atomic read and write via GetValue() and SetValue() respectively.
- AtomicMetric:
- the basis of IntGauge and IntCounter. Support atomic increment
of the metric value via Increment() interface.
- atomic read and write via GetValue() and SetValue() respectively.
- only support int64_t type.
Change-Id: I48dfa5443cd771916b53541a0ffeaf1bcc7e7606
---
M be/src/exec/external-data-source-executor.cc
M be/src/rpc/TAcceptQueueServer.cpp
M be/src/rpc/thrift-server.cc
M be/src/runtime/client-cache.cc
M be/src/runtime/data-stream-mgr.cc
M be/src/runtime/exec-env.cc
M be/src/runtime/io/scan-range.cc
M be/src/runtime/krpc-data-stream-mgr.cc
M be/src/runtime/mem-tracker-test.cc
M be/src/runtime/mem-tracker.cc
M be/src/runtime/mem-tracker.h
M be/src/runtime/query-exec-mgr.cc
M be/src/runtime/query-state.cc
M be/src/runtime/tmp-file-mgr-test.cc
M be/src/runtime/tmp-file-mgr.cc
M be/src/scheduling/admission-controller.cc
M be/src/scheduling/scheduler.cc
M be/src/service/impala-server.cc
M be/src/service/session-expiry-test.cc
M be/src/statestore/statestore-subscriber.cc
M be/src/statestore/statestore.cc
M be/src/util/common-metrics.cc
M be/src/util/default-path-handlers.cc
M be/src/util/impalad-metrics.cc
M be/src/util/memory-metrics.cc
M be/src/util/memory-metrics.h
M be/src/util/metrics-test.cc
M be/src/util/metrics.h
M be/src/util/thread.cc
M common/thrift/metrics.json
30 files changed, 353 insertions(+), 332 deletions(-)
git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/12/9012/3
--
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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: newpatchset
Gerrit-Change-Id: I48dfa5443cd771916b53541a0ffeaf1bcc7e7606
Gerrit-Change-Number: 9012
Gerrit-PatchSet: 3
Gerrit-Owner: Michael Ho <[email protected]>
Gerrit-Reviewer: Lars Volker <[email protected]>
Gerrit-Reviewer: Michael Ho <[email protected]>
Gerrit-Reviewer: Tim Armstrong <[email protected]>
