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hexiaoqiao pushed a change to branch trunk
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from fd653fa9885 HADOOP-19376. Add fs.hdfs.impl.disable.cache to
core-default.xml. (#7249)
add fd4aa2a0d41 HDFS-17683. Add metrics for acquiring dataset read/write
lock. (#7211). Contributed by farmmamba.
No new revisions were added by this update.
Summary of changes:
.../hadoop-common/src/site/markdown/Metrics.md | 4 ++++
.../hadoop/hdfs/server/datanode/DataNode.java | 4 ++--
.../hdfs/server/datanode/DataSetLockManager.java | 21 ++++++++++++++++-----
.../server/datanode/metrics/DataNodeMetrics.java | 12 ++++++++++++
.../hdfs/server/datanode/TestDataNodeMetrics.java | 20 ++++++++++++++++++++
5 files changed, 54 insertions(+), 7 deletions(-)
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