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HDFS-13957. Fix incorrect option used in description of InMemoryAliasMap. 

(cherry picked from commit 619e490333)
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Yiqun Lin 2018-10-05 09:55:08 +08:00
parent 86a1ad4428
commit dd70adf318
1 changed files with 1 additions and 1 deletions
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hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/HdfsProvidedStorage.md
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@ -152,7 +152,7 @@ Currently, the following two types of alias maps are supported.
This is a LevelDB-based alias map that runs as a separate server in Namenode.
The alias map itself can be created using the `fs2img` tool using the option
`-Ddfs.provided.aliasmap.leveldb.path=file:///path/to/leveldb/map/dingos.db -o org.apache.hadoop.hdfs.server.common.blockaliasmap.impl.LevelDBFileRegionAliasMap`
`-Ddfs.provided.aliasmap.leveldb.path=file:///path/to/leveldb/map/dingos.db -b org.apache.hadoop.hdfs.server.common.blockaliasmap.impl.LevelDBFileRegionAliasMap`
as in the example above.
Datanodes contact this alias map using the `org.apache.hadoop.hdfs.server.aliasmap.InMemoryAliasMapProtocol` protocol.