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https://issues.apache.org/jira/browse/SPARK-19045?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15791135#comment-15791135
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Sean Owen commented on SPARK-19045:
-----------------------------------
I disagree; the check looks correct:
{code}
if (!isLocal && Utils.nonLocalPaths(directory).isEmpty) {
logWarning("Spark is not running in local mode, therefore the checkpoint
directory " +
s"must not be on the local filesystem. Directory '$directory' " +
"appears to be on the local filesystem.")
}
{code}
Standalone mode != local. Spark also can't know whether it's an NFS mount. The
warning is just a warning anyway.
> irrelevant warning when creating a checkpoint dir
> -------------------------------------------------
>
> Key: SPARK-19045
> URL: https://issues.apache.org/jira/browse/SPARK-19045
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Affects Versions: 2.1.0
> Reporter: Assaf Mendelson
> Priority: Trivial
>
> When I do:
> sc.setCheckpointDir("/mydir") I get a warning:
> 17/01/01 06:26:42 WARN SparkContext: Spark is not running in local mode,
> therefore the checkpoint directory must not be on the local filesystem.
> Directory '/mydir' appears to be on the local filesystem.
> This occurs even though I use a single computer with local filesystem (using
> spark standalone). Reading the code it seems the same error would occur if I
> would use a cluster and an NFS share.
> Checkpoint should work on a local directory as long as there is a single node
> (even when using a resource manager rather than a single node) and should
> work in a cluster with locally mounted NFS share.
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