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https://issues.apache.org/jira/browse/HDDS-14195?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gargi Jaiswal updated HDDS-14195:
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Status: Patch Available (was: In Progress)
> DiskBalancer should not send another start operation on a DN with an active
> DiskBalancer run
> --------------------------------------------------------------------------------------------
>
> Key: HDDS-14195
> URL: https://issues.apache.org/jira/browse/HDDS-14195
> Project: Apache Ozone
> Issue Type: Sub-task
> Reporter: Gargi Jaiswal
> Assignee: Gargi Jaiswal
> Priority: Major
> Labels: pull-request-available
>
> While a DiskBalancer operation is running on a DataNode, starting another
> DiskBalancer operation on the same DataNode at the same time does not display
> any warning message.
> *Expected Behavior:*
> * It should display a message: _“DiskBalancer operation is already running.”_
> *Actual Behavior:*
> * No message is displayed.
> * A second operation can be initiated, which may lead to confusion.
> Secondly, used set instead of list to store dnHostName for cli output so that
> it doesn't display duplicate hostnames if user give any diskbalancer command
> for same hostname twice like below:
> {code:java}
> bash-5.1$ ozone admin datanode diskbalancer status ozone-datanode-1
> ozone-datanode-3 ozone-datanode-1 --json
> [ {
> "datanode" : "ozone-datanode-1.ozone_default",
> "action" : "status",
> "status" : "success",
> "serviceStatus" : "RUNNING",
> "threshold" : 10.0,
> "bandwidthInMB" : 10,
> "threads" : 5,
> "stopAfterDiskEven" : false,
> "successMove" : 0,
> "failureMove" : 0,
> "bytesMovedMB" : 0,
> "estBytesToMoveMB" : 0,
> "estTimeLeftMin" : 0
> }, {
> "datanode" : "ozone-datanode-3.ozone_default",
> "action" : "status",
> "status" : "success",
> "serviceStatus" : "RUNNING",
> "threshold" : 10.0,
> "bandwidthInMB" : 10,
> "threads" : 5,
> "stopAfterDiskEven" : false,
> "successMove" : 0,
> "failureMove" : 0,
> "bytesMovedMB" : 0,
> "estBytesToMoveMB" : 0,
> "estTimeLeftMin" : 0
> }, {
> "datanode" : "ozone-datanode-1.ozone_default",
> "action" : "status",
> "status" : "success",
> "serviceStatus" : "RUNNING",
> "threshold" : 10.0,
> "bandwidthInMB" : 10,
> "threads" : 5,
> "stopAfterDiskEven" : false,
> "successMove" : 0,
> "failureMove" : 0,
> "bytesMovedMB" : 0,
> "estBytesToMoveMB" : 0,
> "estTimeLeftMin" : 0
> } ] {code}
> Thirdly, Instead of showing ip-address in json cli output show dnHostName for
> better clarity.
> {code:java}
> bash-5.1$ ozone admin datanode diskbalancer stop --in-service-datanodes --json
> [ {
> "datanode" : "172.18.0.5:19864",
> "action" : "stop",
> "status" : "success"
> }, {
> "datanode" : "172.18.0.9:19864",
> "action" : "stop",
> "status" : "success"
> }, {
> "datanode" : "172.18.0.10:19864",
> "action" : "stop",
> "status" : "success"
> }, {
> "datanode" : "172.18.0.8:19864",
> "action" : "stop",
> "status" : "success"
> }]
> {code}
> {{ }}
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