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https://issues.apache.org/jira/browse/HDFS-8807?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15025418#comment-15025418
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Tsz Wo Nicholas Sze commented on HDFS-8807:
-------------------------------------------
{code}
- * http://www.apache.org/licenses/LICENSE-2.0
+ * http://www.apache.org/licenses/LICENSE-2.0
{code}
Indeed, we should not change the license header. Please revert it.
> dfs.datanode.data.dir does not handle spaces between storageType and URI
> correctly
> ----------------------------------------------------------------------------------
>
> Key: HDFS-8807
> URL: https://issues.apache.org/jira/browse/HDFS-8807
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: datanode
> Affects Versions: 2.8.0
> Reporter: Anu Engineer
> Assignee: Anu Engineer
> Fix For: 2.8.0
>
> Attachments: HDFS-8807.001.patch
>
>
> if you add a space between the storage type and file URI then datanodes fail
> during startup.
> Here is an example of "mis-configration" that leads to datanode failure.
> {code}
> <property>
> <name>dfs.datanode.data.dir</name>
> <value>
> [DISK] file://tmp/hadoop-aengineer/disk1/dfs/data
> </value>
> </property>
> {code}
> Here is the "fixed" version. Please *note* the lack of space between \[DISK\]
> and file URI
> {code}
> <property>
> <name>dfs.datanode.data.dir</name>
> <value>
> [DISK]file://tmp/hadoop-aengineer/disk1/dfs/data
> </value>
> </property>
> {code}
> we fail with a parsing error, here is the info from the datanode logs.
> {code}
> 2015-07-22 13:34:36,812 FATAL
> org.apache.hadoop.hdfs.server.datanode.DataNode: Exception in secureMain
> java.lang.IllegalArgumentException: java.net.URISyntaxException: Illegal
> character in scheme name at index 0:
> file://tmp/hadoop-aengineer/disk1/dfs/data
> at org.apache.hadoop.fs.Path.initialize(Path.java:204)
> at org.apache.hadoop.fs.Path.<init>(Path.java:170)
> at
> org.apache.hadoop.hdfs.server.datanode.StorageLocation.parse(StorageLocation.java:97)
> at
> org.apache.hadoop.hdfs.server.datanode.DataNode.getStorageLocations(DataNode.java:2314)
> at
> org.apache.hadoop.hdfs.server.datanode.DataNode.instantiateDataNode(DataNode.java:2298)
> at
> org.apache.hadoop.hdfs.server.datanode.DataNode.createDataNode(DataNode.java:2349)
> at
> org.apache.hadoop.hdfs.server.datanode.DataNode.secureMain(DataNode.java:2529)
> at
> org.apache.hadoop.hdfs.server.datanode.DataNode.main(DataNode.java:2553)
> Caused by: java.net.URISyntaxException: Illegal character in scheme name at
> index 0: file://tmp/hadoop-aengineer/disk1/dfs/data
> at java.net.URI$Parser.fail(URI.java:2829)
> at java.net.URI$Parser.checkChars(URI.java:3002)
> at java.net.URI$Parser.checkChar(URI.java:3012)
> at java.net.URI$Parser.parse(URI.java:3028)
> at java.net.URI.<init>(URI.java:753)
> at org.apache.hadoop.fs.Path.initialize(Path.java:201)
> ... 7 more
> {code}
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