HDFS-7685. Document dfs.namenode.heartbeat.recheck-interval in hdfs-default.xml. Contributed by Kai Sasaki.
(cherry picked from commit 8719cdd4f6
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@ -387,6 +387,9 @@ Release 2.7.0 - UNRELEASED
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HDFS-7308. Change the packet chunk size computation in DFSOutputStream in
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order to enforce packet size <= 64kB. (Takuya Fukudome via szetszwo)
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HDFS-7685. Document dfs.namenode.heartbeat.recheck-interval in
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hdfs-default.xml. (Kai Sasaki via aajisaka)
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OPTIMIZATIONS
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HDFS-7454. Reduce memory footprint for AclEntries in NameNode.
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@ -144,6 +144,17 @@
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</description>
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</property>
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<property>
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<name>dfs.namenode.heartbeat.recheck-interval</name>
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<value>300000</value>
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<description>
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This time decides the interval to check for expired datanodes.
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With this value and dfs.heartbeat.interval, the interval of
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deciding the datanode is stale or not is also calculated.
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The unit of this configuration is millisecond.
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</description>
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</property>
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<property>
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<name>dfs.http.policy</name>
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<value>HTTP_ONLY</value>
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