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https://issues.apache.org/jira/browse/SPARK-5008?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14272830#comment-14272830
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Shivaram Venkataraman commented on SPARK-5008:
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Hmm I think https://github.com/mesos/spark-ec2/pull/66 probably broke this in
some way. We made some tweaks to keep spark-ec2 backwards compatible by
symlinking /vol3 to /vol -- However I think the new behavior is now broken as
persistent-hdfs expects /vol to be exist and can't find it.
I think one fix might be to create a symlink from /vol0 to /vol if /vol3
doesn't exist -- Or we could also change core-site.xml in persistent-hdfs to
pick up all the volumes
> Persistent HDFS does not recognize EBS Volumes
> ----------------------------------------------
>
> Key: SPARK-5008
> URL: https://issues.apache.org/jira/browse/SPARK-5008
> Project: Spark
> Issue Type: Bug
> Components: EC2
> Affects Versions: 1.2.0
> Environment: 8 Node Cluster Generated from 1.2.0 spark-ec2 script.
> -m c3.2xlarge -t c3.8xlarge --ebs-vol-size 300 --ebs-vol-type gp2
> --ebs-vol-num 1
> Reporter: Brad Willard
>
> Cluster is built with correct size EBS volumes. It creates the volume at
> /dev/xvds and it mounted to /vol0. However when you start persistent hdfs
> with start-all script, it starts but it isn't correctly configured to use the
> EBS volume.
> I'm assuming some sym links or expected mounts are not correctly configured.
> This has worked flawlessly on all previous versions of spark.
> I have a stupid workaround by installing pssh and mucking with it by mounting
> it to /vol, which worked, however it doesn't not work between restarts.
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