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| <div class="subTitle">org.apache.hadoop.hbase.namespace</div> |
| <h2 title="Class NamespaceStateManager" class="title">Class NamespaceStateManager</h2> |
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| <li>org.apache.hadoop.hbase.namespace.NamespaceStateManager</li> |
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| <pre>@InterfaceAudience.Private |
| class <a href="../../../../../src-html/org/apache/hadoop/hbase/namespace/NamespaceStateManager.html#line.42">NamespaceStateManager</a> |
| extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></pre> |
| <div class="block">NamespaceStateManager manages state (in terms of quota) of all the namespaces. It contains |
| a cache which is updated based on the hooks in the NamespaceAuditor class.</div> |
| </li> |
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| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Field and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/namespace/NamespaceStateManager.html#initialized">initialized</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private static org.slf4j.Logger</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/namespace/NamespaceStateManager.html#LOG">LOG</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private <a href="../../../../../org/apache/hadoop/hbase/master/MasterServices.html" title="interface in org.apache.hadoop.hbase.master">MasterServices</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/namespace/NamespaceStateManager.html#master">master</a></span></code> </td> |
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| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/namespace/NamespaceStateManager.html#nsStateCache">nsStateCache</a></span></code> </td> |
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| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code>(package private) <a href="../../../../../org/apache/hadoop/hbase/namespace/NamespaceTableAndRegionInfo.html" title="class in org.apache.hadoop.hbase.namespace">NamespaceTableAndRegionInfo</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/namespace/NamespaceStateManager.html#addNamespace-java.lang.String-">addNamespace</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> namespace)</code> </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>private void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/namespace/NamespaceStateManager.html#addTable-org.apache.hadoop.hbase.TableName-int-">addTable</a></span>(<a href="../../../../../org/apache/hadoop/hbase/TableName.html" title="class in org.apache.hadoop.hbase">TableName</a> tableName, |
| int regionCount)</code> </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>(package private) boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/namespace/NamespaceStateManager.html#checkAndUpdateNamespaceRegionCount-org.apache.hadoop.hbase.TableName-byte:A-int-">checkAndUpdateNamespaceRegionCount</a></span>(<a href="../../../../../org/apache/hadoop/hbase/TableName.html" title="class in org.apache.hadoop.hbase">TableName</a> name, |
| byte[] regionName, |
| int incr)</code> |
| <div class="block">Check if adding a region violates namespace quota, if not update namespace cache.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>(package private) void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/namespace/NamespaceStateManager.html#checkAndUpdateNamespaceRegionCount-org.apache.hadoop.hbase.TableName-int-">checkAndUpdateNamespaceRegionCount</a></span>(<a href="../../../../../org/apache/hadoop/hbase/TableName.html" title="class in org.apache.hadoop.hbase">TableName</a> name, |
| int incr)</code> |
| <div class="block">Check and update region count for an existing table.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>(package private) void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/namespace/NamespaceStateManager.html#checkAndUpdateNamespaceTableCount-org.apache.hadoop.hbase.TableName-int-">checkAndUpdateNamespaceTableCount</a></span>(<a href="../../../../../org/apache/hadoop/hbase/TableName.html" title="class in org.apache.hadoop.hbase">TableName</a> table, |
| int numRegions)</code> </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>(package private) void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/namespace/NamespaceStateManager.html#deleteNamespace-java.lang.String-">deleteNamespace</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> namespace)</code> |
| <div class="block">Delete the namespace state.</div> |
| </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code>private <a href="../../../../../org/apache/hadoop/hbase/NamespaceDescriptor.html" title="class in org.apache.hadoop.hbase">NamespaceDescriptor</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/namespace/NamespaceStateManager.html#getNamespaceDescriptor-java.lang.String-">getNamespaceDescriptor</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> namespaceAsString)</code> </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/hadoop/hbase/namespace/NamespaceTableAndRegionInfo.html" title="class in org.apache.hadoop.hbase.namespace">NamespaceTableAndRegionInfo</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/namespace/NamespaceStateManager.html#getState-java.lang.String-">getState</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> name)</code> |
| <div class="block">Gets an instance of NamespaceTableAndRegionInfo associated with namespace.</div> |
| </td> |
| </tr> |
| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code>private void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/namespace/NamespaceStateManager.html#initialize--">initialize</a></span>()</code> |
| <div class="block">Initialize namespace state cache by scanning meta table.</div> |
| </td> |
| </tr> |
| <tr id="i9" class="rowColor"> |
| <td class="colFirst"><code>(package private) boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/namespace/NamespaceStateManager.html#isInitialized--">isInitialized</a></span>()</code> </td> |
| </tr> |
| <tr id="i10" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/namespace/NamespaceStateManager.html#removeRegionFromTable-org.apache.hadoop.hbase.client.RegionInfo-">removeRegionFromTable</a></span>(<a href="../../../../../org/apache/hadoop/hbase/client/RegionInfo.html" title="interface in org.apache.hadoop.hbase.client">RegionInfo</a> hri)</code> </td> |
| </tr> |
| <tr id="i11" class="rowColor"> |
| <td class="colFirst"><code>(package private) void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/namespace/NamespaceStateManager.html#removeTable-org.apache.hadoop.hbase.TableName-">removeTable</a></span>(<a href="../../../../../org/apache/hadoop/hbase/TableName.html" title="class in org.apache.hadoop.hbase">TableName</a> tableName)</code> </td> |
| </tr> |
| <tr id="i12" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/namespace/NamespaceStateManager.html#start--">start</a></span>()</code> |
| <div class="block">Starts the NamespaceStateManager.</div> |
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| <pre>private static final org.slf4j.Logger <a href="../../../../../src-html/org/apache/hadoop/hbase/namespace/NamespaceStateManager.html#line.44">LOG</a></pre> |
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| <h4>nsStateCache</h4> |
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| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block">Starts the NamespaceStateManager. The boot strap of cache |
| is done in the post master start hook of the NamespaceAuditor |
| class.</div> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code> - Signals that an I/O exception has occurred.</dd> |
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| <pre>public <a href="../../../../../org/apache/hadoop/hbase/namespace/NamespaceTableAndRegionInfo.html" title="class in org.apache.hadoop.hbase.namespace">NamespaceTableAndRegionInfo</a> <a href="../../../../../src-html/org/apache/hadoop/hbase/namespace/NamespaceStateManager.html#line.71">getState</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> name)</pre> |
| <div class="block">Gets an instance of NamespaceTableAndRegionInfo associated with namespace.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>name</code> - The name of the namespace</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>An instance of NamespaceTableAndRegionInfo.</dd> |
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| <pre>boolean <a href="../../../../../src-html/org/apache/hadoop/hbase/namespace/NamespaceStateManager.html#line.84">checkAndUpdateNamespaceRegionCount</a>(<a href="../../../../../org/apache/hadoop/hbase/TableName.html" title="class in org.apache.hadoop.hbase">TableName</a> name, |
| byte[] regionName, |
| int incr) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block">Check if adding a region violates namespace quota, if not update namespace cache.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>name</code> - </dd> |
| <dd><code>regionName</code> - </dd> |
| <dd><code>incr</code> - </dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>true, if region can be added to table.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code> - Signals that an I/O exception has occurred.</dd> |
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| <h4>checkAndUpdateNamespaceRegionCount</h4> |
| <pre>void <a href="../../../../../src-html/org/apache/hadoop/hbase/namespace/NamespaceStateManager.html#line.118">checkAndUpdateNamespaceRegionCount</a>(<a href="../../../../../org/apache/hadoop/hbase/TableName.html" title="class in org.apache.hadoop.hbase">TableName</a> name, |
| int incr) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block">Check and update region count for an existing table. To handle scenarios like restore snapshot</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>name</code> - name of the table for region count needs to be checked and updated</dd> |
| <dd><code>incr</code> - count of regions</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="../../../../../org/apache/hadoop/hbase/quotas/QuotaExceededException.html" title="class in org.apache.hadoop.hbase.quotas">QuotaExceededException</a></code> - if quota exceeds for the number of regions allowed in a |
| namespace</dd> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code> - Signals that an I/O exception has occurred.</dd> |
| </dl> |
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| <h4>getNamespaceDescriptor</h4> |
| <pre>private <a href="../../../../../org/apache/hadoop/hbase/NamespaceDescriptor.html" title="class in org.apache.hadoop.hbase">NamespaceDescriptor</a> <a href="../../../../../src-html/org/apache/hadoop/hbase/namespace/NamespaceStateManager.html#line.137">getNamespaceDescriptor</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> namespaceAsString)</pre> |
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| <h4>checkAndUpdateNamespaceTableCount</h4> |
| <pre>void <a href="../../../../../src-html/org/apache/hadoop/hbase/namespace/NamespaceStateManager.html#line.146">checkAndUpdateNamespaceTableCount</a>(<a href="../../../../../org/apache/hadoop/hbase/TableName.html" title="class in org.apache.hadoop.hbase">TableName</a> table, |
| int numRegions) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
| </dl> |
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| <h4>addNamespace</h4> |
| <pre><a href="../../../../../org/apache/hadoop/hbase/namespace/NamespaceTableAndRegionInfo.html" title="class in org.apache.hadoop.hbase.namespace">NamespaceTableAndRegionInfo</a> <a href="../../../../../src-html/org/apache/hadoop/hbase/namespace/NamespaceStateManager.html#line.176">addNamespace</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> namespace)</pre> |
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| <h4>deleteNamespace</h4> |
| <pre>void <a href="../../../../../src-html/org/apache/hadoop/hbase/namespace/NamespaceStateManager.html#line.189">deleteNamespace</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> namespace)</pre> |
| <div class="block">Delete the namespace state.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>namespace</code> - the name of the namespace to delete</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="addTable-org.apache.hadoop.hbase.TableName-int-"> |
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| <h4>addTable</h4> |
| <pre>private void <a href="../../../../../src-html/org/apache/hadoop/hbase/namespace/NamespaceStateManager.html#line.193">addTable</a>(<a href="../../../../../org/apache/hadoop/hbase/TableName.html" title="class in org.apache.hadoop.hbase">TableName</a> tableName, |
| int regionCount) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
| </dl> |
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| <h4>removeTable</h4> |
| <pre>void <a href="../../../../../src-html/org/apache/hadoop/hbase/namespace/NamespaceStateManager.html#line.204">removeTable</a>(<a href="../../../../../org/apache/hadoop/hbase/TableName.html" title="class in org.apache.hadoop.hbase">TableName</a> tableName)</pre> |
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| <h4>initialize</h4> |
| <pre>private void <a href="../../../../../src-html/org/apache/hadoop/hbase/namespace/NamespaceStateManager.html#line.215">initialize</a>() |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block">Initialize namespace state cache by scanning meta table.</div> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
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| <h4>isInitialized</h4> |
| <pre>boolean <a href="../../../../../src-html/org/apache/hadoop/hbase/namespace/NamespaceStateManager.html#line.233">isInitialized</a>()</pre> |
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| </ul> |
| <a name="removeRegionFromTable-org.apache.hadoop.hbase.client.RegionInfo-"> |
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| <pre>public void <a href="../../../../../src-html/org/apache/hadoop/hbase/namespace/NamespaceStateManager.html#line.237">removeRegionFromTable</a>(<a href="../../../../../org/apache/hadoop/hbase/client/RegionInfo.html" title="interface in org.apache.hadoop.hbase.client">RegionInfo</a> hri) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
| </dl> |
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