apache
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hadoop
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<title>Namenode information</title>
</head>
<body>

<header class="navbar navbar-inverse bs-docs-nav" role="banner">
<div class="container">
  <div class="navbar-header">
    <div class="navbar-brand">Hadoop</div>
  </div>

  <ul class="nav navbar-nav" id="ui-tabs">
    <li><a href="#tab-overview">Overview</a></li>
    <li><a href="#tab-datanode">Datanodes</a></li>
    <li><a href="#tab-datanode-volume-failures">Datanode Volume Failures</a></li>
    <li><a href="#tab-snapshot">Snapshot</a></li>
    <li><a href="#tab-startup-progress">Startup Progress</a></li>
    <li class="dropdown">
      <a href="#" class="dropdown-toggle" data-toggle="dropdown">Utilities <b class="caret"></b></a>
      <ul class="dropdown-menu">
        <li><a href="explorer.html">Browse the file system</a></li>
        <li><a href="logs">Logs</a></li>
        <li><a href="jmx">Metrics</a></li>
        <li><a href="conf">Configuration</a></li>
        <li><a href="stacks">Process Thread Dump</a></li>
      </ul>
    </li>
  </ul>
</div>
</header>

<div class="container">

<div id="alert-panel">
  <div class="alert alert-danger">
    <button type="button" class="close" onclick="$('#alert-panel').hide();">&times;</button>
    <div class="alert-body" id="alert-panel-body"></div>
  </div>
</div>

<div class="tab-content">
  <div class="tab-pane" id="tab-overview"></div>
  <div class="tab-pane" id="tab-datanode"></div>
  <div class="tab-pane" id="tab-datanode-volume-failures"></div>
  <div class="tab-pane" id="tab-snapshot"></div>
  <div class="tab-pane" id="tab-startup-progress"></div>
</div>

<div class="row">
  <hr />
  <div class="col-xs-2"><p>Hadoop, {release-year-token}.</p></div>
</div>
</div>

<script type="text/x-dust-template" id="tmpl-dfshealth">

{#nn}
{@if cond="{DistinctVersionCount} > 1 || '{RollingUpgradeStatus}'.length || !'{UpgradeFinalized}'"}
<div class="alert alert-dismissable alert-info">
  <button type="button" class="close" data-dismiss="alert" aria-hidden="true">&times;</button>

  {#RollingUpgradeStatus}
   {@if cond="{finalizeTime} > 0"}
      <p>Rolling upgrade finalized at {#helper_date_tostring value="{finalizeTime}"/}. </p>
   {:else}
    <p>Rolling upgrade started at {#helper_date_tostring value="{startTime}"/}. </br>
    {#createdRollbackImages}
      Rollback image has been created. Proceed to upgrade daemons.
      {:else}
      Rollback image has not been created.
    {/createdRollbackImages}
    </p>
   {/if}
  {/RollingUpgradeStatus}

  {@if cond="{DistinctVersionCount} > 1"}
    There are {DistinctVersionCount} versions of datanodes currently live:
    {#DistinctVersions}
    {key} ({value}) {@sep},{/sep}
    {/DistinctVersions}
  {/if}

  {^UpgradeFinalized}
     <p>Upgrade in progress. Not yet finalized.</p>
  {/UpgradeFinalized}
</div>
{/if}

{@eq key=nnstat.State value="active"}
  {@if cond="{NumberOfMissingBlocks} > 0"}
<div class="alert alert-dismissable alert-warning">
  <button type="button" class="close" data-dismiss="alert" aria-hidden="true">&times;</button>

  <p>There are {NumberOfMissingBlocks} missing blocks. The following files may be corrupted:</p>
  <br/>
  <div class="well">
    {#CorruptFiles}
    {.}<br/>
    {/CorruptFiles}
  </div>
  <p>Please check the logs or run fsck in order to identify the missing blocks.{@if cond="{NumberOfSnapshottableDirs} > 0"} Please run fsck with -includeSnapshots in order to see detailed reports about snapshots.{/if} See the Hadoop FAQ for common causes and potential solutions.</p>
</div>
  {/if}
{/eq}
{/nn}

<div class="page-header"><h1>Overview {#nnstat}<small>'{HostAndPort}' ({State})</small>{/nnstat}</h1></div>

<table class="table table-bordered table-striped">
{#HAInfo}
  <tr><th>Namespace:</th><td>{Namespace}</td></tr>
  <tr><th>Namenode ID:</th><td>{NamenodeID}</td></tr>
{/HAInfo}
{#nn}
  <tr><th>Started:</th><td>{NNStartedTimeInMillis|date_tostring}</td></tr>
  <tr><th>Version:</th><td>{Version}</td></tr>
  <tr><th>Compiled:</th><td>{CompileInfo|format_compile_info}</td></tr>
  <tr><th>Cluster ID:</th><td>{ClusterId}</td></tr>
  <tr><th>Block Pool ID:</th><td>{BlockPoolId}</td></tr>
{/nn}
</table>

<div class="page-header"><h1>Summary</h1></div>
<p>
  Security is {#nnstat}{#SecurityEnabled}on{:else}off{/SecurityEnabled}{/nnstat}.</p>
<p>{#nn}{#Safemode}{.}{:else}Safemode is off.{/Safemode}{/nn}</p>

<p>
  {#fs}
  {FilesTotal|fmt_number} files and directories, {BlocksTotal|fmt_number} blocks ({#replicastat}{TotalReplicatedBlocks|fmt_number}{/replicastat} replicated blocks, {#ecstat}{TotalECBlockGroups|fmt_number}{/ecstat} erasure coded block groups) = {ObjectsTotal|fmt_number} total filesystem object(s).
  {#helper_fs_max_objects/}
  {/fs}
</p>
{#mem.HeapMemoryUsage}
<p>Heap Memory used {used|fmt_bytes} of {committed|fmt_bytes} Heap Memory. Max Heap Memory is {@eq key=max value="-1" type="number"}&ltunbounded&gt{:else}{max|fmt_bytes}{/eq}.</p>
{/mem.HeapMemoryUsage}

{#mem.NonHeapMemoryUsage}
<p>Non Heap Memory used {used|fmt_bytes} of {committed|fmt_bytes} Commited Non Heap Memory. Max Non Heap Memory is {@eq key=max value="-1" type="number"}&ltunbounded&gt{:else}{max|fmt_bytes}{/eq}.</p>
{/mem.NonHeapMemoryUsage}

{#nn}
<table class="table table-bordered table-striped">
  <tr><th> Configured Capacity:</th><td>{Total|fmt_bytes}</td></tr>
  <tr><th> Configured Remote Capacity:</th><td>{ProvidedCapacity|fmt_bytes}</td></tr>
  <tr><th> DFS Used:</th><td>{Used|fmt_bytes} ({PercentUsed|fmt_percentage})</td></tr>
  <tr><th> Non DFS Used:</th><td>{NonDfsUsedSpace|fmt_bytes}</td></tr>
  <tr><th> DFS Remaining:</th><td>{Free|fmt_bytes} ({PercentRemaining|fmt_percentage})</td></tr>
  <tr><th> Block Pool Used:</th><td>{BlockPoolUsedSpace|fmt_bytes} ({PercentBlockPoolUsed|fmt_percentage})</td></tr>
  <tr><th> DataNodes usages% (Min/Median/Max/stdDev): </th>
	<td>{#NodeUsage.nodeUsage}{min} / {median} / {max} / {stdDev}{/NodeUsage.nodeUsage}</td></tr>
{/nn}

{#fs}
  <tr><th><a href="#tab-datanode">Live Nodes</a></th><td>{NumLiveDataNodes} (Decommissioned: {NumDecomLiveDataNodes}, In Maintenance: {NumInMaintenanceLiveDataNodes})</td></tr>
  <tr><th><a href="#tab-datanode">Dead Nodes</a></th><td>{NumDeadDataNodes} (Decommissioned: {NumDecomDeadDataNodes}, In Maintenance: {NumInMaintenanceDeadDataNodes})</td></tr>
  <tr><th><a href="#tab-datanode">Decommissioning Nodes</a></th><td>{NumDecommissioningDataNodes}</td></tr>
  <tr><th><a href="#tab-datanode">Entering Maintenance Nodes</a></th><td> {NumEnteringMaintenanceDataNodes}</td></tr>
  <tr><th><a href="#tab-datanode-volume-failures">Total Datanode Volume Failures</a></th><td>{VolumeFailuresTotal} ({EstimatedCapacityLostTotal|fmt_bytes})</td></tr>
  {@eq key=nnstat.State value="active"}
    <tr><th title="Excludes missing blocks.">Number of Under-Replicated Blocks</th><td>{UnderReplicatedBlocks}</td></tr>
    <tr><th>Number of Blocks Pending Deletion</th><td>{PendingDeletionBlocks}</td></tr>
  {/eq}
  <tr><th>Block Deletion Start Time</th><td>{BlockDeletionStartTime|date_tostring}</td></tr>
{/fs}
{#fsn}
  <tr><th>Last Checkpoint Time</th><td>{@if cond="{LastCheckpointTime} === 0"}Never{:else}{LastCheckpointTime|date_tostring}{/if}</td></tr>
{/fsn}
{#ecstat}
  <tr><th>Enabled Erasure Coding Policies</th><td>{EnabledEcPolicies}</td></tr>
{/ecstat}
</table>

<div class="page-header"><h1>NameNode Journal Status</h1></div>
<p><b>Current transaction ID:</b> {nn.JournalTransactionInfo.LastAppliedOrWrittenTxId}</p>
<table class="table" title="NameNode Journals">
  <thead>
	<tr><th>Journal Manager</th><th>State</th></tr>
  </thead>
  <tbody>
	{#nn.NameJournalStatus}
	<tr><td>{manager}</td><td>{stream}</td></tr>
	{/nn.NameJournalStatus}
  </tbody>
</table>

<div class="page-header"><h1>NameNode Storage</h1></div>
<table class="table" title="NameNode Storage">
  <thead><tr><td><b>Storage Directory</b></td><td><b>Type</b></td><td><b>State</b></td></tr></thead>
  {#nn.NameDirStatuses}
  {#active}{#helper_dir_status type="Active"/}{/active}
  {#failed}{#helper_dir_status type="Failed"/}{/failed}
  {/nn.NameDirStatuses}
</table>
<div class="page-header"><h1>DFS Storage Types</h1></div>
<small>
<table class="table">
  <thead>
    <tr>
      <th>Storage Type</th>
      <th>Configured Capacity</th>
      <th>Capacity Used</th>
      <th>Capacity Remaining</th>
      <th>Block Pool Used</th>
      <th>Nodes In Service</th>
    </tr>
  </thead>
  {#blockstats.StorageTypeStats}
  <tr>
    <td>{key}</td>
    <td>{value.capacityTotal|fmt_bytes}</td>
    <td>{value.capacityUsed|fmt_bytes} ({value.capacityUsedPercentage|fmt_percentage})</td>
    <td>{value.capacityRemaining|fmt_bytes} ({value.capacityRemainingPercentage|fmt_percentage})</td>
    <td>{value.blockPoolUsed|fmt_bytes}</td>
    <td>{value.nodesInService}</td>
  </tr>
  {/blockstats.StorageTypeStats}
</table>
</small>
</script>

<script type="text/x-dust-template" id="tmpl-snapshot">
<div class="page-header"><h1>Snapshot Summary</h1></div>
<div class="page-header"><h1><small>Snapshottable directories: {@size key=SnapshottableDirectories}{/size}</small></div>
<small>
<table class="table">
  <thead>
    <tr>
      <th>Path</th>
      <th>Snapshot Number</th>
      <th>Snapshot Quota</th>
      <th>Modification Time</th>
      <th>Permission</th>
      <th>Owner</th>
      <th>Group</th>
    </tr>
  </thead>
  {#SnapshottableDirectories}
  <tr>
    <td>{path}</td>
    <td>{snapshotNumber}</td>
    <td>{snapshotQuota}</td>
    <td>{modificationTime|date_tostring}</td>
    <td>{permission|helper_to_permission}</td>
    <td>{owner}</td>
    <td>{group}</td>
  </tr>
  {/SnapshottableDirectories}
</table>
</small>

<div class="page-header"><h1><small>Snapshotted directories: {@size key=Snapshots}{/size}</small></div>

<small>
<table class="table">
  <thead>
    <tr>
      <th>Snapshot ID</th>
      <th>Snapshot Directory</th>
      <th>Modification Time</th>
    </tr>
  </thead>
  {#Snapshots}
  <tr>
    <td>{snapshotID}</td>
    <td>{snapshotDirectory}</td>
    <td>{modificationTime|date_tostring}</td>
  </tr>
  {/Snapshots}
</table>
</small>
</script>

<script type="text/x-dust-template" id="tmpl-datanode">
<div class="page-header"><h1>Datanode Information</h1></div>
<div>
  <ul class="dfshealth-node-legend">
    <li class="dfshealth-node-icon dfshealth-node-alive">In service</li>
    <li class="dfshealth-node-icon dfshealth-node-down">Down</li>
    <li class="dfshealth-node-icon dfshealth-node-decommissioned">Decommissioned</li>
    <li class="dfshealth-node-icon dfshealth-node-down-decommissioned">Decommissioned &amp; dead</li>
    <li class="dfshealth-node-icon dfshealth-node-down-maintenance">In Maintenance &amp; dead</li>
  </ul>
</div>
<div class="page-header"><h1><small>Datanode usage histogram</small></h1></div>
<small><div id="datanode-usage-histogram"></div></small>
<div class="page-header"><h1><small>In operation</small></h1></div>
<small>
<table class="table" id="table-datanodes">
  <thead>
    <tr>
      <th>Node</th>
      <th>Http Address</th>
      <th>Last contact</th>
      <th>Last Block Report</th>
      <th style="width:180px; text-align:center">Capacity</th>
      <th>Blocks</th>
      <th>Block pool used</th>
      <th>Version</th>
    </tr>
  </thead>
  {#LiveNodes}
  <tr>
    <td ng-value="{state}-{name}" class="dfshealth-node-icon dfshealth-node-{state}">{name} ({xferaddr})</td>
    <td ng-value="{state}-{name}"><a href='{dnWebAddress}'>{dnWebAddress}</a></td>
    <td ng-value="{lastContact}">{lastContact}s</td>
    <td ng-value="{lastBlockReport}">{lastBlockReport}m</td>
    <td ng-value="{usedPercentage}">
      <div>
        <div style="display:inline-block; float: left; padding-right: 10px; width:80px">{capacity|fmt_bytes}</div>
        <div class="clearfix progress dfshealth-node-capacity-bar" title="Non DFS: {nonDfsUsedSpace|fmt_bytes}, Used: {used|fmt_bytes}">
          <div class="progress-bar {#helper_usage_bar value="{usedPercentage}"/}" style="width: {usedPercentage}%">
          </div>
        </div>
      </div>
    </td>
    <td title="Blocks Scheduled : {blockScheduled}">{numBlocks}</td>
    <td ng-value="{blockPoolUsedPercent}">{blockPoolUsed|fmt_bytes} ({blockPoolUsedPercent|fmt_percentage})</td>
    <td>{version}</td>
  </tr>
  {/LiveNodes}
  {#DeadNodes}
  <tr class="danger">
    <td ng-value="{state}-{name}" class="dfshealth-node-icon dfshealth-node-{state}">{name} ({xferaddr})</td>
    <td></td>
    <td>{#helper_relative_time value="{lastContact}"/}</td>
    <td></td>
    <td></td>
    <td></td>
    <td></td>
  </tr>
  {/DeadNodes}
</table>
</small>

<div class="page-header"><h1><small>Entering Maintenance</small></h1></div>
<small>
  {?EnteringMaintenanceNodes}
  <table class="table">
    <thead>
    <tr>
      <th>Node</th>
      <th>Under replicated blocks</th>
      <th>Blocks with no live replicas</th>
      <th>Under Replicated Blocks <br/>In files under construction</th>
    </tr>
    </thead>
    {#EnteringMaintenanceNodes}
    <tr>
      <td>{name} ({xferaddr})</td>
      <td>{underReplicatedBlocks}</td>
      <td>{maintenanceOnlyReplicas}</td>
      <td>{underReplicateInOpenFiles}</td>
    </tr>
    {/EnteringMaintenanceNodes}
  </table>
  {:else}
  No nodes are entering maintenance.
  {/EnteringMaintenanceNodes}
</small>

<div class="page-header"><h1><small>Decommissioning</small></h1></div>
<small>
{?DecomNodes}
<table class="table">
  <thead>
    <tr>
      <th>Node</th>
      <th>Under replicated blocks</th>
      <th>Blocks with no live replicas</th>
      <th>Under Replicated Blocks <br/>In files under construction</th>
    </tr>
  </thead>
  {#DecomNodes}
  <tr>
    <td>{name} ({xferaddr})</td>
    <td>{underReplicatedBlocks}</td>
    <td>{decommissionOnlyReplicas}</td>
    <td>{underReplicateInOpenFiles}</td>
  </tr>
  {/DecomNodes}
</table>
{:else}
No nodes are decommissioning
{/DecomNodes}
</small>
</script>

<script type="text/x-dust-template" id="tmpl-datanode-volume-failures">
<div class="page-header"><h1>Datanode Volume Failures</h1></div>
<small>
{?LiveNodes}
<table class="table">
  <thead>
    <tr>
      <th>Node</th>
      <th>Last Failure Date</th>
      <th>Failed Volumes</th>
      <th>Estimated Capacity Lost</th>
      <th>Failed Storage Locations</th>
    </tr>
  </thead>
  {#LiveNodes}
  <tr>
    <td>{name} ({xferaddr})</td>
    <td>{#helper_date_tostring value="{lastVolumeFailureDate}"/}</td>
    <td>{volfails}</td>
    <td>{estimatedCapacityLostTotal|fmt_bytes}</td>
    <td>{#failedStorageIDs}{.}{@sep}<br />{/sep}{/failedStorageIDs}</td>
  </tr>
  {/LiveNodes}
</table>
{:else}
There are no reported volume failures.
{/LiveNodes}
</small>
</script>

<script type="text/x-dust-template" id="tmpl-startup-progress">
<div class="page-header"><h1>Startup Progress</h1></div>
<p>Elapsed Time: {elapsedTime|fmt_time}, Percent Complete: {percentComplete|fmt_percentage}</p>
<table class="table">
  <thead>
	<tr class="active">
	  <th>Phase</th>
	  <th style="text-align:center">Completion</th>
	  <th style="text-align:center">Elapsed Time</th>
	</tr>
  </thead>
  <tbody>
	{#phases}
	<tr class="phase">
	  <td class="startupdesc">{desc} {file} {size|fmt_bytes}</td>
	  <td style="text-align:center">{percentComplete|fmt_percentage}</td>
	  <td style="text-align:center">{elapsedTime|fmt_time}</td>
	</tr>
	{#steps root_file=file}
	<tr class="step">
	  <td class="startupdesc">{stepDesc} {stepFile} {stepSize|fmt_bytes} ({count}/{total})</td>
	  <td style="text-align:center">{percentComplete|fmt_percentage}</td>
	  <td></td>
	</tr>
	{/steps}
	{/phases}
  </tbody>
</table>
</script>

<script type="text/javascript" src="/static/jquery-3.3.1.min.js">
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</script><script type="text/javascript" src="/static/dust-full-2.0.0.min.js">
</script><script type="text/javascript" src="/static/dust-helpers-1.1.1.min.js">
</script><script type="text/javascript" src="/static/dfs-dust.js">
</script><script type="text/javascript" src="/static/d3-v4.1.1.min.js">
</script><script type="text/javascript" src="dfshealth.js">
</script>
</body>
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