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HDFS-14979 Allow Balancer to submit getBlocks calls to Observer Nodes when possible. Contributed by Erik Krogen.

(cherry picked from 586defe7113ed246ed0275bb3833882a3d873d70)

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HDFS-14979 Allow Balancer to submit getBlocks calls to Observer Nodes when possible. Contributed by Erik Krogen.

(cherry picked from 586defe7113ed246ed0275bb3833882a3d873d70)

(cherry picked from dec765b329d3947f30273c0e7f0c4eb607ec42c9)

(cherry picked from 5cf36aa2b19aad8677e1a7553ff1f05805f772b7)

(cherry picked from 4d46d9b04e5ff4a6459568b33abf21c597c4c5a6)

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HDFS-14979 Allow Balancer to submit getBlocks calls to Observer Nodes when possible. Contributed by Erik Krogen.

(cherry picked from 586defe7113ed246ed0275bb3833882a3d873d70)

(cherry picked from dec765b329d3947f30273c0e7f0c4eb607ec42c9)

(cherry picked from 5cf36aa2b19aad8677e1a7553ff1f05805f772b7)

  1. … 1 more file in changeset.
HDFS-14979 Allow Balancer to submit getBlocks calls to Observer Nodes when possible. Contributed by Erik Krogen.

(cherry picked from 586defe7113ed246ed0275bb3833882a3d873d70)

(cherry picked from dec765b329d3947f30273c0e7f0c4eb607ec42c9)

  1. … 1 more file in changeset.
HDFS-14979 Allow Balancer to submit getBlocks calls to Observer Nodes when possible. Contributed by Erik Krogen.

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HDFS-14162. [SBN read] Allow Balancer to work with Observer node. Add a new ProxyCombiner allowing for multiple related protocols to be combined. Allow AlignmentContext to be passed in NameNodeProxyFactory. Contributed by Erik Krogen.

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    ./BalancerProtocols.java
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HADOOP-16029. Consecutive StringBuilder.append can be reused. Contributed by Ayush Saxena.

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HDFS-14162. [SBN read] Allow Balancer to work with Observer node. Add a new ProxyCombiner allowing for multiple related protocols to be combined. Allow AlignmentContext to be passed in NameNodeProxyFactory. Contributed by Erik Krogen.

(cherry picked from 64f28f9efa2ef3cd9dd54a6c5009029721e030ed)

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    ./BalancerProtocols.java
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HDFS-14162. [SBN read] Allow Balancer to work with Observer node. Add a new ProxyCombiner allowing for multiple related protocols to be combined. Allow AlignmentContext to be passed in NameNodeProxyFactory. Contributed by Erik Krogen.

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    ./BalancerProtocols.java
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HDFS-14162. [SBN read] Allow Balancer to work with Observer node. Add a new ProxyCombiner allowing for multiple related protocols to be combined. Allow AlignmentContext to be passed in NameNodeProxyFactory. Contributed by Erik Krogen.

(cherry picked from 64f28f9efa2ef3cd9dd54a6c5009029721e030ed)

(cherry picked from 69b0c513a9b11cc7f795747732173b36aacbe794)

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    ./BalancerProtocols.java
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HDFS-13942. [JDK10] Fix javadoc errors in hadoop-hdfs module. Contributed by Dinesh Chitlangia.

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HDFS-13310. The DatanodeProtocol should have a DNA_BACKUP to backup blocks. Original patch contributed by Ewan Higgs. Followup work and fixed contributed by Virajith Jalaparthi.

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    ./BlockSyncTask.java
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    ./BulkSyncTaskExecutionFeedback.java
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HDFS-13310. The DatanodeProtocol should have a DNA_BACKUP to backup blocks. Original patch contributed by Ewan Higgs. Followup work and fixed contributed by Virajith Jalaparthi.

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    ./BulkSyncTaskExecutionFeedback.java
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HDFS-13381 : [SPS]: Use DFSUtilClient#makePathFromFileId() to prepare satisfier file path. Contributed by Rakesh R.

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HDFS-13609. [SBN read] Edit Tail Fast Path Part 3: NameNode-side changes to support tailing edits via RPC. Contributed by Erik Krogen. HDFS-10519. Add a configuration option to enable in-progress edit log tailing. Contributed by Jiayi Zhou.

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HDFS-13165: [SPS]: Collects successfully moved block details via IBR. Contributed by Rakesh R.

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HDFS-13258. Ozone: restructure Hdsl/Ozone code to separated maven subprojects. Contributed by Elek Marton, Mukul Kumar Singh, Xiaoyu Yao, Ajay Kumar, Anu Engineer, Lokesh Jain, Nanda Kumar.

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HDFS-13222. Update getBlocks method to take minBlockSize in RPC calls. Contributed by Bharat Viswanadham

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HDFS-13166: [SPS]: Implement caching mechanism to keep LIVE datanodes to minimize costly getLiveDatanodeStorageReport() calls. Contributed by Rakesh R.

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HDFS-13110: [SPS]: Reduce the number of APIs in NamenodeProtocol used by external satisfier. Contributed by Rakesh R.

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HDFS-13075. [SPS]: Provide External Context implementation. Contributed by Uma Maheswara Rao G.

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Merge branch 'trunk' into HDFS-7240

Conflicts:

hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/protocolPB/PBHelperClient.java

hadoop-hdfs-project/hadoop-hdfs/pom.xml

hadoop-tools/pom.xml

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HDFS-12713. [READ] Refactor FileRegion and BlockAliasMap to separate out HDFS metadata and PROVIDED storage metadata. Contributed by Ewan Higgs

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HDFS-12713. [READ] Refactor FileRegion and BlockAliasMap to separate out HDFS metadata and PROVIDED storage metadata. Contributed by Ewan Higgs

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HDFS-12713. [READ] Refactor FileRegion and BlockAliasMap to separate out HDFS metadata and PROVIDED storage metadata. Contributed by Ewan Higgs

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HDFS-12779. [READ] Allow cluster id to be specified to the Image generation tool

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HDFS-12779. [READ] Allow cluster id to be specified to the Image generation tool

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HDFS-12779. [READ] Allow cluster id to be specified to the Image generation tool

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HDFS-12650. Use slf4j instead of log4j in LeaseManager. Contributed by Ajay Kumar.

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HDFS-12650. Use slf4j instead of log4j in LeaseManager. Contributed by Ajay Kumar.

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