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https://issues.apache.org/jira/browse/HDDS-14662?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated HDDS-14662:
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Labels: pull-request-available (was: )
> Container Balancer does not validate include/exclude datanode names
> -------------------------------------------------------------------
>
> Key: HDDS-14662
> URL: https://issues.apache.org/jira/browse/HDDS-14662
> Project: Apache Ozone
> Issue Type: Improvement
> Reporter: Gargi Jaiswal
> Assignee: Sravani Revuri
> Priority: Minor
> Labels: pull-request-available
>
> The {color:#de350b}ozone admin containerbalancer start{color} command accepts
> invalid datanode names in *-- include-datanodes-* and *--exclude-datanodes*
> and reports success instead of failing with a validation error. This differs
> from other admin commands that validate hostnames and fail on invalid input.
> {code:java}
> bash-5.1$ ozone admin containerbalancer start --exclude-datanodes "55abc" -t
> 0.1 -d 100 -i 3
> Container Balancer started successfully.
> bash-5.1$ ozone admin containerbalancer start --include-datanodes="123!"
> Container Balancer started successfully.
> // other admin commands behavior
> bash-5.1$ ozone admin datanode decommission ozone-datanode-1
> Started decommissioning datanode(s):
> ozone-datanode-1
> Error: ozone-datanode-1: ozone-datanode-1: Name or service not known
> Some nodes could not enter the decommission workflow
> bash-5.1$ ozone admin datanode diskbalancer status ozone-datanode-3
> 555hgkjmdhkj
> Error on node [555hgkjmdhkj]: Invalid host name: local host is:
> "ca8e95ea2b71/172.18.0.2"; destination host is: "555hgkjmdhkj":19864;
> java.net.UnknownHostException: Invalid host name: local host is:
> "ca8e95ea2b71/172.18.0.2"; destination host is: "555hgkjmdhkj":19864;
> java.net.UnknownHostException; For more details see:
> http://wiki.apache.org/hadoop/UnknownHost; For more details see:
> http://wiki.apache.org/hadoop/UnknownHost
> Failed to get DiskBalancer status from nodes: [555hgkjmdhkj]
> Status result:
> Datanode Status Threshold(%) BandwidthInMB Threads
> StopAfterDiskEven SuccessMove FailureMove BytesMoved(MB) EstBytesToMove(MB)
> EstTimeLeft(min)
> 9e2ef66785cc STOPPED 10.0000 10 5 true
> 0 0 0 0 0{code}
> h3. *Proposed Fix*
> Add validation for -- include-datanodes and -- exclude-datanodes before
> starting the balancer.
>
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