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| <div class="subTitle">org.apache.hadoop.hbase.quotas</div> |
| <h2 title="Class QuotaCache" class="title">Class QuotaCache</h2> |
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| <ul class="inheritance"> |
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| <li>org.apache.hadoop.hbase.quotas.QuotaCache</li> |
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| <pre>@InterfaceAudience.Private |
| @InterfaceStability.Evolving |
| public class <a href="../../../../../src-html/org/apache/hadoop/hbase/quotas/QuotaCache.html#line.62">QuotaCache</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> |
| implements <a href="../../../../../org/apache/hadoop/hbase/Stoppable.html" title="interface in org.apache.hadoop.hbase">Stoppable</a></pre> |
| <div class="block">Cache that keeps track of the quota settings for the users and tables that |
| are interacting with it. |
| |
| To avoid blocking the operations if the requested quota is not in cache |
| an "empty quota" will be returned and the request to fetch the quota information |
| will be enqueued for the next refresh. |
| |
| TODO: At the moment the Cache has a Chore that will be triggered every 5min |
| or on cache-miss events. Later the Quotas will be pushed using the notification system.</div> |
| </li> |
| </ul> |
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| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Class and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>(package private) static interface </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/quotas/QuotaCache.Fetcher.html" title="interface in org.apache.hadoop.hbase.quotas">QuotaCache.Fetcher</a><<a href="../../../../../org/apache/hadoop/hbase/quotas/QuotaCache.Fetcher.html" title="type parameter in QuotaCache.Fetcher">Key</a>,<a href="../../../../../org/apache/hadoop/hbase/quotas/QuotaCache.Fetcher.html" title="type parameter in QuotaCache.Fetcher">Value</a>></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/quotas/QuotaCache.QuotaRefresherChore.html" title="class in org.apache.hadoop.hbase.quotas">QuotaCache.QuotaRefresherChore</a></span></code> </td> |
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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 static int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/quotas/QuotaCache.html#EVICT_PERIOD_FACTOR">EVICT_PERIOD_FACTOR</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/quotas/QuotaCache.html#exceedThrottleQuotaEnabled">exceedThrottleQuotaEnabled</a></span></code> </td> |
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| <tr class="altColor"> |
| <td class="colFirst"><code>private static org.slf4j.Logger</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/quotas/QuotaCache.html#LOG">LOG</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private double</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/quotas/QuotaCache.html#machineQuotaFactor">machineQuotaFactor</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/ConcurrentMap.html?is-external=true" title="class or interface in java.util.concurrent">ConcurrentMap</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>,<a href="../../../../../org/apache/hadoop/hbase/quotas/QuotaState.html" title="class in org.apache.hadoop.hbase.quotas">QuotaState</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/quotas/QuotaCache.html#namespaceQuotaCache">namespaceQuotaCache</a></span></code> </td> |
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| <tr class="rowColor"> |
| <td class="colFirst"><code>static <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></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/quotas/QuotaCache.html#REFRESH_CONF_KEY">REFRESH_CONF_KEY</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private static int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/quotas/QuotaCache.html#REFRESH_DEFAULT_PERIOD">REFRESH_DEFAULT_PERIOD</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private <a href="../../../../../org/apache/hadoop/hbase/quotas/QuotaCache.QuotaRefresherChore.html" title="class in org.apache.hadoop.hbase.quotas">QuotaCache.QuotaRefresherChore</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/quotas/QuotaCache.html#refreshChore">refreshChore</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/ConcurrentMap.html?is-external=true" title="class or interface in java.util.concurrent">ConcurrentMap</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>,<a href="../../../../../org/apache/hadoop/hbase/quotas/QuotaState.html" title="class in org.apache.hadoop.hbase.quotas">QuotaState</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/quotas/QuotaCache.html#regionServerQuotaCache">regionServerQuotaCache</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private <a href="../../../../../org/apache/hadoop/hbase/regionserver/RegionServerServices.html" title="interface in org.apache.hadoop.hbase.regionserver">RegionServerServices</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/quotas/QuotaCache.html#rsServices">rsServices</a></span></code> </td> |
| </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/quotas/QuotaCache.html#stopped">stopped</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/ConcurrentHashMap.html?is-external=true" title="class or interface in java.util.concurrent">ConcurrentHashMap</a><<a href="../../../../../org/apache/hadoop/hbase/TableName.html" title="class in org.apache.hadoop.hbase">TableName</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Double.html?is-external=true" title="class or interface in java.lang">Double</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/quotas/QuotaCache.html#tableMachineQuotaFactors">tableMachineQuotaFactors</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/ConcurrentMap.html?is-external=true" title="class or interface in java.util.concurrent">ConcurrentMap</a><<a href="../../../../../org/apache/hadoop/hbase/TableName.html" title="class in org.apache.hadoop.hbase">TableName</a>,<a href="../../../../../org/apache/hadoop/hbase/quotas/QuotaState.html" title="class in org.apache.hadoop.hbase.quotas">QuotaState</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/quotas/QuotaCache.html#tableQuotaCache">tableQuotaCache</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>(package private) static boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/quotas/QuotaCache.html#TEST_FORCE_REFRESH">TEST_FORCE_REFRESH</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/ConcurrentMap.html?is-external=true" title="class or interface in java.util.concurrent">ConcurrentMap</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>,<a href="../../../../../org/apache/hadoop/hbase/quotas/UserQuotaState.html" title="class in org.apache.hadoop.hbase.quotas">UserQuotaState</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/quotas/QuotaCache.html#userQuotaCache">userQuotaCache</a></span></code> </td> |
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| <tr> |
| <th class="colOne" scope="col">Constructor and Description</th> |
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| <tr class="altColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/quotas/QuotaCache.html#QuotaCache-org.apache.hadoop.hbase.regionserver.RegionServerServices-">QuotaCache</a></span>(<a href="../../../../../org/apache/hadoop/hbase/regionserver/RegionServerServices.html" title="interface in org.apache.hadoop.hbase.regionserver">RegionServerServices</a> rsServices)</code> </td> |
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| <h3>Method Summary</h3> |
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| <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd"> </span></span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Method and Description</th> |
| </tr> |
| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code>(package private) long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/quotas/QuotaCache.html#getLastUpdate--">getLastUpdate</a></span>()</code> </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/hadoop/hbase/quotas/QuotaLimiter.html" title="interface in org.apache.hadoop.hbase.quotas">QuotaLimiter</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/quotas/QuotaCache.html#getNamespaceLimiter-java.lang.String-">getNamespaceLimiter</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">Returns the limiter associated to the specified namespace.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>(package private) <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</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>,<a href="../../../../../org/apache/hadoop/hbase/quotas/QuotaState.html" title="class in org.apache.hadoop.hbase.quotas">QuotaState</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/quotas/QuotaCache.html#getNamespaceQuotaCache--">getNamespaceQuotaCache</a></span>()</code> </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>private <K> <a href="../../../../../org/apache/hadoop/hbase/quotas/QuotaState.html" title="class in org.apache.hadoop.hbase.quotas">QuotaState</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/quotas/QuotaCache.html#getQuotaState-java.util.concurrent.ConcurrentMap-K-">getQuotaState</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/ConcurrentMap.html?is-external=true" title="class or interface in java.util.concurrent">ConcurrentMap</a><K,<a href="../../../../../org/apache/hadoop/hbase/quotas/QuotaState.html" title="class in org.apache.hadoop.hbase.quotas">QuotaState</a>> quotasMap, |
| K key)</code> |
| <div class="block">Returns the QuotaState requested.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>(package private) <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</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>,<a href="../../../../../org/apache/hadoop/hbase/quotas/QuotaState.html" title="class in org.apache.hadoop.hbase.quotas">QuotaState</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/quotas/QuotaCache.html#getRegionServerQuotaCache--">getRegionServerQuotaCache</a></span>()</code> </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/hadoop/hbase/quotas/QuotaLimiter.html" title="interface in org.apache.hadoop.hbase.quotas">QuotaLimiter</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/quotas/QuotaCache.html#getRegionServerQuotaLimiter-java.lang.String-">getRegionServerQuotaLimiter</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> regionServer)</code> |
| <div class="block">Returns the limiter associated to the specified region server.</div> |
| </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/hadoop/hbase/quotas/QuotaLimiter.html" title="interface in org.apache.hadoop.hbase.quotas">QuotaLimiter</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/quotas/QuotaCache.html#getTableLimiter-org.apache.hadoop.hbase.TableName-">getTableLimiter</a></span>(<a href="../../../../../org/apache/hadoop/hbase/TableName.html" title="class in org.apache.hadoop.hbase">TableName</a> table)</code> |
| <div class="block">Returns the limiter associated to the specified table.</div> |
| </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code>(package private) <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a><<a href="../../../../../org/apache/hadoop/hbase/TableName.html" title="class in org.apache.hadoop.hbase">TableName</a>,<a href="../../../../../org/apache/hadoop/hbase/quotas/QuotaState.html" title="class in org.apache.hadoop.hbase.quotas">QuotaState</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/quotas/QuotaCache.html#getTableQuotaCache--">getTableQuotaCache</a></span>()</code> </td> |
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| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/hadoop/hbase/quotas/QuotaLimiter.html" title="interface in org.apache.hadoop.hbase.quotas">QuotaLimiter</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/quotas/QuotaCache.html#getUserLimiter-org.apache.hadoop.security.UserGroupInformation-org.apache.hadoop.hbase.TableName-">getUserLimiter</a></span>(org.apache.hadoop.security.UserGroupInformation ugi, |
| <a href="../../../../../org/apache/hadoop/hbase/TableName.html" title="class in org.apache.hadoop.hbase">TableName</a> table)</code> |
| <div class="block">Returns the limiter associated to the specified user/table.</div> |
| </td> |
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| <tr id="i9" class="rowColor"> |
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| <td class="colFirst"><code>protected boolean</code></td> |
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| <td class="colFirst"><code>boolean</code></td> |
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| <td class="colFirst"><code>void</code></td> |
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| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/quotas/QuotaCache.html#stop-java.lang.String-">stop</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> why)</code> |
| <div class="block">Stop this service.</div> |
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| <tr id="i15" class="rowColor"> |
| <td class="colFirst"><code>(package private) void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/quotas/QuotaCache.html#triggerCacheRefresh--">triggerCacheRefresh</a></span>()</code> </td> |
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| <div class="block">Stop this service. |
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| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>ugi</code> - the user to limit</dd> |
| <dd><code>table</code> - the table to limit</dd> |
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| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>ugi</code> - the user</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
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| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>table</code> - the table to limit</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
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| <div class="block">Returns the limiter associated to the specified namespace.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>namespace</code> - the namespace to limit</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the limiter associated to the specified namespace</dd> |
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| <div class="block">Returns the limiter associated to the specified region server.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>regionServer</code> - the region server to limit</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the limiter associated to the specified region server</dd> |
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| <pre>private <K> <a href="../../../../../org/apache/hadoop/hbase/quotas/QuotaState.html" title="class in org.apache.hadoop.hbase.quotas">QuotaState</a> <a href="../../../../../src-html/org/apache/hadoop/hbase/quotas/QuotaCache.html#line.177">getQuotaState</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/ConcurrentMap.html?is-external=true" title="class or interface in java.util.concurrent">ConcurrentMap</a><K,<a href="../../../../../org/apache/hadoop/hbase/quotas/QuotaState.html" title="class in org.apache.hadoop.hbase.quotas">QuotaState</a>> quotasMap, |
| K key)</pre> |
| <div class="block">Returns the QuotaState requested. If the quota info is not in cache an empty one will be |
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