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https://issues.apache.org/jira/browse/HDFS-15515?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17184692#comment-17184692
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Uma Maheswara Rao G commented on HDFS-15515:
--------------------------------------------
Thank you [~ste...@apache.org] :)
> mkdirs on fallback should throw IOE out instead of suppressing and returning
> false
> ----------------------------------------------------------------------------------
>
> Key: HDFS-15515
> URL: https://issues.apache.org/jira/browse/HDFS-15515
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Uma Maheswara Rao G
> Assignee: Uma Maheswara Rao G
> Priority: Major
> Fix For: 3.3.1
>
>
> Currently when doing mkdirs on fallback dir, we catching IOE and returning
> false.
> I think we should just throw IOE out as the fs#mkdirs throws IOE out.
> I noticed a case when we attempt to create .reserved dirs, NN throws
> HadoopIAE.
> But we will catch and return false. Here exception should be thrown out.
> {code:java}
> try {
> return linkedFallbackFs.mkdirs(dirToCreate, permission);
> } catch (IOException e) {
> if (LOG.isDebugEnabled()) {
> StringBuilder msg =
> new StringBuilder("Failed to create ").append(dirToCreate)
> .append(" at fallback : ")
> .append(linkedFallbackFs.getUri());
> LOG.debug(msg.toString(), e);
> }
> return false;
> }
> {code}
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