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https://issues.apache.org/jira/browse/HDFS-12454?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16167266#comment-16167266
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Weiwei Yang commented on HDFS-12454:
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Hi [~vagarychen], [~anu], [~xyao]
Based on Chen Liang's comment, I have some more suggestions,
# I think we do need {{ozone.ksm.address}}, let user explicitly set this
property helps them to understand the primitive services' location. And this
should be an address, not a hostname.
# I think we should not require user to set up {{ozone.scm.datanode.id}}, this
is an internal property, can we let it default to
{{ozone.container.metadata.dirs}}/datanode.id?
# At present, {{ozone.container.metadata.dirs}} is actually used for SCM (also
KSM) metadata dir, the property name is a bit confusing to me. Can we rename
this to something else? Maybe we can define an {{ozone.metadata.dir}}, e.g
/hadoop/data/ozone/, then default metadata dirs for SCM/KSM could be
/hadoop/data/ozone/scm and /hadoop/data/ozone/ksm. This layout seems better.
Does this make sense?
> Ozone : the sample ozone-site.xml in OzoneGettingStarted does not work
> ----------------------------------------------------------------------
>
> Key: HDFS-12454
> URL: https://issues.apache.org/jira/browse/HDFS-12454
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Chen Liang
> Assignee: Chen Liang
> Priority: Blocker
> Labels: ozoneMerge
> Attachments: HDFS-12454-HDFS-7240.001.patch
>
>
> In OzoneGettingStarted.md there is a sample ozone-site.xml file. But there
> are a few issues with it.
> 1.
> {code}
> <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>
> {code}
> 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.
> {code}
> <property>
> <name>ozone.scm.names</name>
> <value>scm.hadoop.apache.org</value>
> </property>
> {code}
> This value did not make much sense to, I found the comment in
> {{ScmConfigKeys}} that says
> {code}
> // 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
> {code}
> So maybe we should write something like scm1 as value here.
> 4. I'm not entirely sure about this, but
> [here|https://wiki.apache.org/hadoop/Ozone#Configuration] it says
> {code}
> <property>
> <name>ozone.handler.type</name>
> <value>local</value>
> </property>
> {code}
> is also part of minimum setting, do we need to add this [~anu]?
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