[HDFS-12454] Ozone : the sample ozone-site.xml in OzoneGettingStarted does not work

• Type: Sub-task
• Status: Resolved
• Priority: Blocker
• Resolution: Fixed
• Fix Version/s: HDFS-7240
• Labels: ozoneMerge
• Target Version/s: HDFS-7240
• Hadoop Flags: Reviewed
• Assignee: Chen Liang
• Reporter: Chen Liang
• Created: 14/Sep/17 21:01
• Updated: 26/Apr/18 21:54
• Resolved: 27/Sep/17 01:16

Description

In OzoneGettingStarted.md there is a sample ozone-site.xml file. But there are a few issues with it.
1.

        <property>
          <name>ozone.scm.block.client.address</name>
          <value>scm.hadoop.apache.org</value>
        </property>

         <property>
            <name>ozone.ksm.address</name>
            <value>ksm.hadoop.apache.org</value>
          </property>

The value should be an address instead.

2.
datanode.ObjectStoreHandler.<init>(ObjectStoreHandler.java:103) requires ozone.scm.client.address to be set, which is missing from this sample file. Missing this config will seem to cause failure on starting datanode.

3.

        <property>
          <name>ozone.scm.names</name>
          <value>scm.hadoop.apache.org</value>
        </property>

This value did not make much sense to, I found the comment in ScmConfigKeys that says

// ozone.scm.names key is a set of DNS | DNS:PORT | IP Address | IP:PORT.
// Written as a comma separated string. e.g. scm1, scm2:8020, 7.7.7.7:7777

So maybe we should write something like scm1 as value here.

4. I'm not entirely sure about this, but here it says

<property>
    <name>ozone.handler.type</name>
    <value>local</value>
  </property>

is also part of minimum setting, do we need to add this anu?

Issue Links

• breaks: HDFS-12554 Ozone: Fix TestDatanodeStateMachine#testDatanodeStateMachineWithInvalidConfiguration