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<div class="subTitle">org.apache.hadoop.hbase.client</div>
<h2 title="Class ConnectionUtils" class="title">Class ConnectionUtils</h2>
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<pre>@InterfaceAudience.Private
public final class <a href="../../../../../src-html/org/apache/hadoop/hbase/client/ConnectionUtils.html#line.77">ConnectionUtils</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">Utility used by client connections.</div>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Class and Description</th>
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<tr class="altColor">
<td class="colFirst"><code>(package private) static interface&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/ConnectionUtils.Converter.html" title="interface in org.apache.hadoop.hbase.client">ConnectionUtils.Converter</a>&lt;<a href="../../../../../org/apache/hadoop/hbase/client/ConnectionUtils.Converter.html" title="type parameter in ConnectionUtils.Converter">D</a>,<a href="../../../../../org/apache/hadoop/hbase/client/ConnectionUtils.Converter.html" title="type parameter in ConnectionUtils.Converter">I</a>,<a href="../../../../../org/apache/hadoop/hbase/client/ConnectionUtils.Converter.html" title="type parameter in ConnectionUtils.Converter">S</a>&gt;</span></code>&nbsp;</td>
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<td class="colFirst"><code>(package private) static interface&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/ConnectionUtils.RpcCall.html" title="interface in org.apache.hadoop.hbase.client">ConnectionUtils.RpcCall</a>&lt;<a href="../../../../../org/apache/hadoop/hbase/client/ConnectionUtils.RpcCall.html" title="type parameter in ConnectionUtils.RpcCall">RESP</a>,<a href="../../../../../org/apache/hadoop/hbase/client/ConnectionUtils.RpcCall.html" title="type parameter in ConnectionUtils.RpcCall">REQ</a>&gt;</span></code>&nbsp;</td>
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<caption><span>Fields</span><span class="tabEnd">&nbsp;</span></caption>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Field and Description</th>
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<tr class="altColor">
<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/client/ConnectionUtils.html#HBASE_CLIENT_CONNECTION_IMPL">HBASE_CLIENT_CONNECTION_IMPL</a></span></code>
<div class="block">Key for configuration in Configuration whose value is the class we implement making a new
Connection instance.</div>
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<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/client/ConnectionUtils.html#LOG">LOG</a></span></code>&nbsp;</td>
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<td class="colFirst"><code>(package private) static byte[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/ConnectionUtils.html#MAX_BYTE_ARRAY">MAX_BYTE_ARRAY</a></span></code>&nbsp;</td>
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<td class="colFirst"><code>private 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/client/ConnectionUtils.html#MY_ADDRESS">MY_ADDRESS</a></span></code>&nbsp;</td>
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<td class="colFirst"><code>(package private) static <a href="../../../../../org/apache/hadoop/hbase/client/NonceGenerator.html" title="interface in org.apache.hadoop.hbase.client">NonceGenerator</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/ConnectionUtils.html#NO_NONCE_GENERATOR">NO_NONCE_GENERATOR</a></span></code>
<div class="block">Dummy nonce generator for disabled nonces.</div>
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<tr class="rowColor">
<td class="colFirst"><code>(package private) static long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/ConnectionUtils.html#SLEEP_DELTA_NS">SLEEP_DELTA_NS</a></span></code>&nbsp;</td>
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<td class="colFirst"><code>private </code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/ConnectionUtils.html#ConnectionUtils--">ConnectionUtils</a></span>()</code>&nbsp;</td>
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<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd">&nbsp;</span></span></caption>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
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<tr id="i0" class="altColor">
<td class="colFirst"><code>(package private) static &lt;T&gt;&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/CompletableFuture.html?is-external=true" title="class or interface in java.util.concurrent">CompletableFuture</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;T&gt;&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/ConnectionUtils.html#allOf-java.util.List-">allOf</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/CompletableFuture.html?is-external=true" title="class or interface in java.util.concurrent">CompletableFuture</a>&lt;T&gt;&gt;&nbsp;futures)</code>&nbsp;</td>
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<tr id="i1" class="rowColor">
<td class="colFirst"><code>(package private) static long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/ConnectionUtils.html#calcEstimatedSize-org.apache.hadoop.hbase.client.Result-">calcEstimatedSize</a></span>(<a href="../../../../../org/apache/hadoop/hbase/client/Result.html" title="class in org.apache.hadoop.hbase.client">Result</a>&nbsp;rs)</code>&nbsp;</td>
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<td class="colFirst"><code>(package private) static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/ConnectionUtils.html#calcPriority-int-org.apache.hadoop.hbase.TableName-">calcPriority</a></span>(int&nbsp;priority,
<a href="../../../../../org/apache/hadoop/hbase/TableName.html" title="class in org.apache.hadoop.hbase">TableName</a>&nbsp;tableName)</code>
<div class="block">Select the priority for the rpc call.</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>(package private) static &lt;REQ,PREQ,PRESP,RESP&gt;<br><a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/CompletableFuture.html?is-external=true" title="class or interface in java.util.concurrent">CompletableFuture</a>&lt;RESP&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/ConnectionUtils.html#call-org.apache.hadoop.hbase.ipc.HBaseRpcController-org.apache.hadoop.hbase.HRegionLocation-org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.ClientService.Interface-REQ-org.apache.hadoop.hbase.client.ConnectionUtils.Converter-org.apache.hadoop.hbase.client.ConnectionUtils.RpcCall-org.apache.hadoop.hbase.client.ConnectionUtils.Converter-">call</a></span>(<a href="../../../../../org/apache/hadoop/hbase/ipc/HBaseRpcController.html" title="interface in org.apache.hadoop.hbase.ipc">HBaseRpcController</a>&nbsp;controller,
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org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.ClientService.Interface&nbsp;stub,
REQ&nbsp;req,
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<tr id="i4" class="altColor">
<td class="colFirst"><code>(package private) static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/ConnectionUtils.html#checkHasFamilies-org.apache.hadoop.hbase.client.Mutation-">checkHasFamilies</a></span>(<a href="../../../../../org/apache/hadoop/hbase/client/Mutation.html" title="class in org.apache.hadoop.hbase.client">Mutation</a>&nbsp;mutation)</code>&nbsp;</td>
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<td class="colFirst"><code>private static &lt;T&gt;&nbsp;void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/ConnectionUtils.html#connect-java.util.concurrent.CompletableFuture-java.util.concurrent.CompletableFuture-java.util.Optional-">connect</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/CompletableFuture.html?is-external=true" title="class or interface in java.util.concurrent">CompletableFuture</a>&lt;T&gt;&nbsp;srcFuture,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/CompletableFuture.html?is-external=true" title="class or interface in java.util.concurrent">CompletableFuture</a>&lt;T&gt;&nbsp;dstFuture,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Optional.html?is-external=true" title="class or interface in java.util">Optional</a>&lt;<a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html" title="class in org.apache.hadoop.hbase.client">MetricsConnection</a>&gt;&nbsp;metrics)</code>
<div class="block">Connect the two futures, if the src future is done, then mark the dst future as done.</div>
</td>
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<tr id="i6" class="altColor">
<td class="colFirst"><code>(package private) static byte[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/ConnectionUtils.html#createCloseRowBefore-byte:A-">createCloseRowBefore</a></span>(byte[]&nbsp;row)</code>
<div class="block">Create a row before the specified row and very close to the specified row.</div>
</td>
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<tr id="i7" class="rowColor">
<td class="colFirst"><code>(package private) static byte[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/ConnectionUtils.html#createClosestRowAfter-byte:A-">createClosestRowAfter</a></span>(byte[]&nbsp;row)</code>
<div class="block">Create the closest row after the specified row</div>
</td>
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<tr id="i8" class="altColor">
<td class="colFirst"><code>static <a href="../../../../../org/apache/hadoop/hbase/client/ScanResultCache.html" title="interface in org.apache.hadoop.hbase.client">ScanResultCache</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/ConnectionUtils.html#createScanResultCache-org.apache.hadoop.hbase.client.Scan-">createScanResultCache</a></span>(<a href="../../../../../org/apache/hadoop/hbase/client/Scan.html" title="class in org.apache.hadoop.hbase.client">Scan</a>&nbsp;scan)</code>&nbsp;</td>
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<tr id="i9" class="rowColor">
<td class="colFirst"><code>(package private) static <a href="../../../../../org/apache/hadoop/hbase/client/Result.html" title="class in org.apache.hadoop.hbase.client">Result</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/ConnectionUtils.html#filterCells-org.apache.hadoop.hbase.client.Result-org.apache.hadoop.hbase.Cell-">filterCells</a></span>(<a href="../../../../../org/apache/hadoop/hbase/client/Result.html" title="class in org.apache.hadoop.hbase.client">Result</a>&nbsp;result,
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<tr id="i10" class="altColor">
<td class="colFirst"><code>(package private) static <a href="../../../../../org/apache/hadoop/hbase/client/RegionLocateType.html" title="enum in org.apache.hadoop.hbase.client">RegionLocateType</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/ConnectionUtils.html#getLocateType-org.apache.hadoop.hbase.client.Scan-">getLocateType</a></span>(<a href="../../../../../org/apache/hadoop/hbase/client/Scan.html" title="class in org.apache.hadoop.hbase.client">Scan</a>&nbsp;scan)</code>&nbsp;</td>
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<tr id="i11" class="rowColor">
<td class="colFirst"><code>private 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/client/ConnectionUtils.html#getMyAddress--">getMyAddress</a></span>()</code>&nbsp;</td>
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<tr id="i12" class="altColor">
<td class="colFirst"><code>(package private) static &lt;T&gt;&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/CompletableFuture.html?is-external=true" title="class or interface in java.util.concurrent">CompletableFuture</a>&lt;T&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/ConnectionUtils.html#getOrFetch-java.util.concurrent.atomic.AtomicReference-java.util.concurrent.atomic.AtomicReference-boolean-java.util.function.Supplier-java.util.function.Predicate-java.lang.String-">getOrFetch</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/atomic/AtomicReference.html?is-external=true" title="class or interface in java.util.concurrent.atomic">AtomicReference</a>&lt;T&gt;&nbsp;cacheRef,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/atomic/AtomicReference.html?is-external=true" title="class or interface in java.util.concurrent.atomic">AtomicReference</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/CompletableFuture.html?is-external=true" title="class or interface in java.util.concurrent">CompletableFuture</a>&lt;T&gt;&gt;&nbsp;futureRef,
boolean&nbsp;reload,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/function/Supplier.html?is-external=true" title="class or interface in java.util.function">Supplier</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/CompletableFuture.html?is-external=true" title="class or interface in java.util.concurrent">CompletableFuture</a>&lt;T&gt;&gt;&nbsp;fetch,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/function/Predicate.html?is-external=true" title="class or interface in java.util.function">Predicate</a>&lt;T&gt;&nbsp;validator,
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<tr id="i13" class="rowColor">
<td class="colFirst"><code>static long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/ConnectionUtils.html#getPauseTime-long-int-">getPauseTime</a></span>(long&nbsp;pause,
int&nbsp;tries)</code>
<div class="block">Calculate pause time.</div>
</td>
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<tr id="i14" class="altColor">
<td class="colFirst"><code>(package private) static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/ConnectionUtils.html#getPriority-org.apache.hadoop.hbase.TableName-">getPriority</a></span>(<a href="../../../../../org/apache/hadoop/hbase/TableName.html" title="class in org.apache.hadoop.hbase">TableName</a>&nbsp;tableName)</code>&nbsp;</td>
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<tr id="i15" class="rowColor">
<td class="colFirst"><code>(package private) 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>
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<div class="block">Get a unique key for the rpc stub to the given server.</div>
</td>
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<td class="colFirst"><code>(package private) static void</code></td>
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<tr id="i17" class="rowColor">
<td class="colFirst"><code>(package private) static void</code></td>
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<tr id="i18" class="altColor">
<td class="colFirst"><code>(package private) static void</code></td>
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<td class="colFirst"><code>(package private) static boolean</code></td>
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<td class="colFirst"><code>(package private) static boolean</code></td>
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<td class="colFirst"><code>(package private) static boolean</code></td>
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<td class="colFirst"><code>(package private) static boolean</code></td>
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<td class="colFirst"><code>(package private) static void</code></td>
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<td class="colFirst"><code>(package private) static int</code></td>
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<td class="colFirst"><code>private static &lt;T&gt;&nbsp;void</code></td>
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<td class="colFirst"><code>(package private) static void</code></td>
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<td class="colFirst"><code>static void</code></td>
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org.slf4j.Logger&nbsp;log)</code>
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<td class="colFirst"><code>(package private) static void</code></td>
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<tr id="i30" class="altColor">
<td class="colFirst"><code>(package private) static &lt;T&gt;&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/CompletableFuture.html?is-external=true" title="class or interface in java.util.concurrent">CompletableFuture</a>&lt;T&gt;</code></td>
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<td class="colFirst"><code>(package private) static <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="../../../../../org/apache/hadoop/hbase/client/Get.html" title="class in org.apache.hadoop.hbase.client">Get</a>&gt;</code></td>
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<td class="colFirst"><code>(package private) static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Throwable.html?is-external=true" title="class or interface in java.lang">Throwable</a></code></td>
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<td class="colFirst"><code>(package private) static void</code></td>
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<td class="colFirst"><code>(package private) static void</code></td>
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<td class="colFirst"><code>(package private) static void</code></td>
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