Wei-Chiu Chuang

HBASE-26032 Make HRegion.getStores() an O(1) operation

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See the corresponding jira HBASE-26032 for the details and the visualvm output.

#63. Dynamometer does not support negative block id's

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Fixes #63 Submitted the PR on behalf of @fangyurao. The PR was adopted from this commit: https://github.com/fangyurao/dynamometer/commit/0f077a6e8094b2154142f09bd034490fbfebfa85

ISSUE-64. Hadoop 3.0 NN drops replicas silently.

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Fixes #64 This PR changes blockMap of dyno DN from hash map to tree map. The fix was verified internally at Cloudera. Additional stress test will be needed to understand...

In Hadoop 3.0/CDH5.7 and above, HDFS-9260 (Improve the performance and GC friendliness of NameNode startup and full block reports) changed the internal representation of block replicas, as well as the...

HADOOP-18333. Upgrade jetty version to 9.4.48.v20220622

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Cherry picked #4553 to branch-3.3

## What changes were proposed in this pull request? Bump Spring to the latest versions ## How was this patch tested? Verified it was built ok. Existing UT should cover...

HDDS-6775. Add more performance logs to DataNode disk/container operations

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## What changes were proposed in this pull request? Log warnings if any DataNode request handler spends more than 300ms, or if any block read/write takes more than 300ms. ##...

HDDS-6092. commitKey() to upload file checksum to OM.

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## What changes were proposed in this pull request? When KeyOutputStream is closed, it sends a request to OM to commit the final change. Compute the file checksum at this...

HDDS-7228. ChecksumByteBufferImpl.update() is expensive

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ChecksumByteBufferImpl.update() copies the bytebuffer before checksum calculation because the isReadOnly field of ByteBuffer is false. This is a quick&dirty hack, which uses inflection to reset the isReadOnly field of ByteBuffer...

HBASE-28419 Allow Action and Policies of ServerKillingMonkey to be configurable.

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For ServerKillingMonkeyFactory, the sleep time of the following actions are configurable via: ``` RestartRandomRsExceptMetaAction : restart.random.rs.exception.sleep.time RestartActiveMasterAction : restart.active.master.sleep.time RollingBatchRestartRsAction : rolling.batch.restart.rs.sleep.time PolicyBasedChaosMonkey : sdm.action1.period ``` For ServerAndDependenciesKillingMonkeyFactory: ``` RestartRandomRsExceptMetaAction...