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https://issues.apache.org/jira/browse/HDFS-13062?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16344315#comment-16344315
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Hanisha Koneru commented on HDFS-13062:
---------------------------------------
# In patch v03, if different journal dirs are configured, then we are not doing
a {{checkDir()}} operation on those directories. We should call
\{{validateAndCreateJournalDir(dir)}} when adding a dir to {{localDir}}.
# In \{{validateAndCreateJournalDir()}}, the two for loops can be combined
into one.
{code:java}
for (File journalDir : localDir) {
if (!journalDir.isAbsolute()) {
throw new IllegalArgumentException(
"Journal dir '" + journalDir + "' should be an absolute path");
}
}
for (File jDir : localDir) {
DiskChecker.checkDir(jDir);
}{code}
> Provide support for JN to use separate journal disk per namespace
> -----------------------------------------------------------------
>
> Key: HDFS-13062
> URL: https://issues.apache.org/jira/browse/HDFS-13062
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Bharat Viswanadham
> Assignee: Bharat Viswanadham
> Priority: Major
> Attachments: HDFS-13062.00.patch, HDFS-13062.01.patch,
> HDFS-13062.02.patch, HDFS-13062.03.patch
>
>
> In Federated HA setup, provide support for separate journal disk for each
> namespace.
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