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| <h2 title="Interface ColumnFamilyDescriptor" class="title">Interface ColumnFamilyDescriptor</h2> |
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| <dd><a href="../../../../../org/apache/hadoop/hbase/client/ColumnFamilyDescriptorBuilder.ModifyableColumnFamilyDescriptor.html" title="class in org.apache.hadoop.hbase.client">ColumnFamilyDescriptorBuilder.ModifyableColumnFamilyDescriptor</a></dd> |
| </dl> |
| <hr> |
| <br> |
| <pre>@InterfaceAudience.Public |
| public interface <a href="../../../../../src-html/org/apache/hadoop/hbase/client/ColumnFamilyDescriptor.html#line.42">ColumnFamilyDescriptor</a></pre> |
| <div class="block">An ColumnFamilyDescriptor contains information about a column family such as the |
| number of versions, compression settings, etc. |
| |
| It is used as input when creating a table or adding a column. |
| |
| To construct a new instance, use the <a href="../../../../../org/apache/hadoop/hbase/client/ColumnFamilyDescriptorBuilder.html" title="class in org.apache.hadoop.hbase.client"><code>ColumnFamilyDescriptorBuilder</code></a> methods</div> |
| <dl> |
| <dt><span class="simpleTagLabel">Since:</span></dt> |
| <dd>2.0.0</dd> |
| </dl> |
| </li> |
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| <h3>Field Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Field Summary table, listing fields, and an explanation"> |
| <caption><span>Fields</span><span class="tabEnd"> </span></caption> |
| <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>static <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Comparator.html?is-external=true" title="class or interface in java.util">Comparator</a><<a href="../../../../../org/apache/hadoop/hbase/client/ColumnFamilyDescriptor.html" title="interface in org.apache.hadoop.hbase.client">ColumnFamilyDescriptor</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/ColumnFamilyDescriptor.html#COMPARATOR">COMPARATOR</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Comparator.html?is-external=true" title="class or interface in java.util">Comparator</a><<a href="../../../../../org/apache/hadoop/hbase/client/ColumnFamilyDescriptor.html" title="interface in org.apache.hadoop.hbase.client">ColumnFamilyDescriptor</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/ColumnFamilyDescriptor.html#COMPARATOR_IGNORE_REPLICATION">COMPARATOR_IGNORE_REPLICATION</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static <a href="../../../../../org/apache/hadoop/hbase/util/Bytes.html" title="class in org.apache.hadoop.hbase.util">Bytes</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/ColumnFamilyDescriptor.html#REPLICATION_SCOPE_BYTES">REPLICATION_SCOPE_BYTES</a></span></code> </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
| <!-- ========== METHOD SUMMARY =========== --> |
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| </a> |
| <h3>Method Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation"> |
| <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="t3" class="tableTab"><span><a href="javascript:show(4);">Abstract 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>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/ColumnFamilyDescriptor.html#getBlocksize--">getBlocksize</a></span>()</code> </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/hadoop/hbase/regionserver/BloomType.html" title="enum in org.apache.hadoop.hbase.regionserver">BloomType</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/ColumnFamilyDescriptor.html#getBloomFilterType--">getBloomFilterType</a></span>()</code> </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/hadoop/hbase/io/compress/Compression.Algorithm.html" title="enum in org.apache.hadoop.hbase.io.compress">Compression.Algorithm</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/ColumnFamilyDescriptor.html#getCompactionCompressionType--">getCompactionCompressionType</a></span>()</code> </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/hadoop/hbase/io/compress/Compression.Algorithm.html" title="enum in org.apache.hadoop.hbase.io.compress">Compression.Algorithm</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/ColumnFamilyDescriptor.html#getCompressionType--">getCompressionType</a></span>()</code> </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code><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="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/ColumnFamilyDescriptor.html#getConfiguration--">getConfiguration</a></span>()</code> </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code><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/ColumnFamilyDescriptor.html#getConfigurationValue-java.lang.String-">getConfigurationValue</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> key)</code> </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/hadoop/hbase/io/encoding/DataBlockEncoding.html" title="enum in org.apache.hadoop.hbase.io.encoding">DataBlockEncoding</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/ColumnFamilyDescriptor.html#getDataBlockEncoding--">getDataBlockEncoding</a></span>()</code> </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code>short</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/ColumnFamilyDescriptor.html#getDFSReplication--">getDFSReplication</a></span>()</code> </td> |
| </tr> |
| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code>byte[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/ColumnFamilyDescriptor.html#getEncryptionKey--">getEncryptionKey</a></span>()</code> </td> |
| </tr> |
| <tr id="i9" class="rowColor"> |
| <td class="colFirst"><code><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/ColumnFamilyDescriptor.html#getEncryptionType--">getEncryptionType</a></span>()</code> </td> |
| </tr> |
| <tr id="i10" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/hadoop/hbase/MemoryCompactionPolicy.html" title="enum in org.apache.hadoop.hbase">MemoryCompactionPolicy</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/ColumnFamilyDescriptor.html#getInMemoryCompaction--">getInMemoryCompaction</a></span>()</code> </td> |
| </tr> |
| <tr id="i11" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/hadoop/hbase/KeepDeletedCells.html" title="enum in org.apache.hadoop.hbase">KeepDeletedCells</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/ColumnFamilyDescriptor.html#getKeepDeletedCells--">getKeepDeletedCells</a></span>()</code> </td> |
| </tr> |
| <tr id="i12" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/hadoop/hbase/io/compress/Compression.Algorithm.html" title="enum in org.apache.hadoop.hbase.io.compress">Compression.Algorithm</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/ColumnFamilyDescriptor.html#getMajorCompactionCompressionType--">getMajorCompactionCompressionType</a></span>()</code> </td> |
| </tr> |
| <tr id="i13" class="rowColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/ColumnFamilyDescriptor.html#getMaxVersions--">getMaxVersions</a></span>()</code> </td> |
| </tr> |
| <tr id="i14" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/hadoop/hbase/io/compress/Compression.Algorithm.html" title="enum in org.apache.hadoop.hbase.io.compress">Compression.Algorithm</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/ColumnFamilyDescriptor.html#getMinorCompactionCompressionType--">getMinorCompactionCompressionType</a></span>()</code> </td> |
| </tr> |
| <tr id="i15" class="rowColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/ColumnFamilyDescriptor.html#getMinVersions--">getMinVersions</a></span>()</code> </td> |
| </tr> |
| <tr id="i16" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/hadoop/hbase/client/MobCompactPartitionPolicy.html" title="enum in org.apache.hadoop.hbase.client">MobCompactPartitionPolicy</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/ColumnFamilyDescriptor.html#getMobCompactPartitionPolicy--">getMobCompactPartitionPolicy</a></span>()</code> |
| <div class="block">Get the mob compact partition policy for this family</div> |
| </td> |
| </tr> |
| <tr id="i17" class="rowColor"> |
| <td class="colFirst"><code>long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/ColumnFamilyDescriptor.html#getMobThreshold--">getMobThreshold</a></span>()</code> |
| <div class="block">Gets the mob threshold of the family.</div> |
| </td> |
| </tr> |
| <tr id="i18" class="altColor"> |
| <td class="colFirst"><code>byte[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/ColumnFamilyDescriptor.html#getName--">getName</a></span>()</code> </td> |
| </tr> |
| <tr id="i19" class="rowColor"> |
| <td class="colFirst"><code><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/ColumnFamilyDescriptor.html#getNameAsString--">getNameAsString</a></span>()</code> </td> |
| </tr> |
| <tr id="i20" class="altColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/ColumnFamilyDescriptor.html#getScope--">getScope</a></span>()</code> </td> |
| </tr> |
| <tr id="i21" class="rowColor"> |
| <td class="colFirst"><code><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/ColumnFamilyDescriptor.html#getStoragePolicy--">getStoragePolicy</a></span>()</code> |
| <div class="block">Not using <code>enum</code> here because HDFS is not using <code>enum</code> for storage policy, see |
| org.apache.hadoop.hdfs.server.blockmanagement.BlockStoragePolicySuite for more details.</div> |
| </td> |
| </tr> |
| <tr id="i22" class="altColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/ColumnFamilyDescriptor.html#getTimeToLive--">getTimeToLive</a></span>()</code> </td> |
| </tr> |
| <tr id="i23" class="rowColor"> |
| <td class="colFirst"><code>byte[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/ColumnFamilyDescriptor.html#getValue-byte:A-">getValue</a></span>(byte[] key)</code> </td> |
| </tr> |
| <tr id="i24" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/hadoop/hbase/util/Bytes.html" title="class in org.apache.hadoop.hbase.util">Bytes</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/ColumnFamilyDescriptor.html#getValue-org.apache.hadoop.hbase.util.Bytes-">getValue</a></span>(<a href="../../../../../org/apache/hadoop/hbase/util/Bytes.html" title="class in org.apache.hadoop.hbase.util">Bytes</a> key)</code> </td> |
| </tr> |
| <tr id="i25" class="rowColor"> |
| <td class="colFirst"><code><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/util/Bytes.html" title="class in org.apache.hadoop.hbase.util">Bytes</a>,<a href="../../../../../org/apache/hadoop/hbase/util/Bytes.html" title="class in org.apache.hadoop.hbase.util">Bytes</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/ColumnFamilyDescriptor.html#getValues--">getValues</a></span>()</code> |
| <div class="block">It clone all bytes of all elements.</div> |
| </td> |
| </tr> |
| <tr id="i26" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/ColumnFamilyDescriptor.html#isBlockCacheEnabled--">isBlockCacheEnabled</a></span>()</code> </td> |
| </tr> |
| <tr id="i27" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/ColumnFamilyDescriptor.html#isCacheBloomsOnWrite--">isCacheBloomsOnWrite</a></span>()</code> </td> |
| </tr> |
| <tr id="i28" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/ColumnFamilyDescriptor.html#isCacheDataOnWrite--">isCacheDataOnWrite</a></span>()</code> </td> |
| </tr> |
| <tr id="i29" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/ColumnFamilyDescriptor.html#isCacheIndexesOnWrite--">isCacheIndexesOnWrite</a></span>()</code> </td> |
| </tr> |
| <tr id="i30" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/ColumnFamilyDescriptor.html#isCompressTags--">isCompressTags</a></span>()</code> </td> |
| </tr> |
| <tr id="i31" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/ColumnFamilyDescriptor.html#isEvictBlocksOnClose--">isEvictBlocksOnClose</a></span>()</code> </td> |
| </tr> |
| <tr id="i32" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/ColumnFamilyDescriptor.html#isInMemory--">isInMemory</a></span>()</code> </td> |
| </tr> |
| <tr id="i33" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/ColumnFamilyDescriptor.html#isMobEnabled--">isMobEnabled</a></span>()</code> |
| <div class="block">Gets whether the mob is enabled for the family.</div> |
| </td> |
| </tr> |
| <tr id="i34" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/ColumnFamilyDescriptor.html#isNewVersionBehavior--">isNewVersionBehavior</a></span>()</code> |
| <div class="block">By default, HBase only consider timestamp in versions.</div> |
| </td> |
| </tr> |
| <tr id="i35" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/ColumnFamilyDescriptor.html#isPrefetchBlocksOnOpen--">isPrefetchBlocksOnOpen</a></span>()</code> </td> |
| </tr> |
| <tr id="i36" class="altColor"> |
| <td class="colFirst"><code><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/ColumnFamilyDescriptor.html#toStringCustomizedValues--">toStringCustomizedValues</a></span>()</code> </td> |
| </tr> |
| </table> |
| </li> |
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| <dd>bloom filter type used for new StoreFiles in ColumnFamily</dd> |
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| <dl> |
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| <dd><code>key</code> - the key whose associated value is to be returned</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>accessing the configuration value by key.</dd> |
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| <dd>replication factor set for this CF</dd> |
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| <dd>the data block encoding algorithm used in block cache and |
| optionally on disk</dd> |
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| <dd>Return the raw crypto key attribute for the family, or null if not set</dd> |
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| <dd>Return the encryption algorithm in use by this family</dd> |
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| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>in-memory compaction policy if set for the cf. Returns null if no policy is set for |
| for this column family</dd> |
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| <dd>return the KeepDeletedCells</dd> |
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| <div class="block">Get the mob compact partition policy for this family</div> |
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| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>MobCompactPartitionPolicy</dd> |
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| If the size of a cell value is larger than this threshold, it's regarded as a mob. |
| The default threshold is 1024*100(100K)B.</div> |
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| <dd>a copy of Name of this column family</dd> |
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| <div class="block">Not using <code>enum</code> here because HDFS is not using <code>enum</code> for storage policy, see |
| org.apache.hadoop.hdfs.server.blockmanagement.BlockStoragePolicySuite for more details.</div> |
| <dl> |
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| <dd>Return the storage policy in use by this family</dd> |
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| <dd><code>key</code> - The key.</dd> |
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| <dd>A clone value. Null if no mapping for the key</dd> |
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| <dd>All values</dd> |
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| <dd>True if hfile DATA type blocks should be cached (You cannot disable caching of INDEX |
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| <dd>true if we should cache bloomfilter blocks on write</dd> |
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| <dd>true if we should cache data blocks on write</dd> |
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| <dd>true if we should cache index blocks on write</dd> |
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| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Whether KV tags should be compressed along with DataBlockEncoding. When no |
| DataBlockEncoding is been used, this is having no effect.</dd> |
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| <dd>true if we should evict cached blocks from the blockcache on close</dd> |
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| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>True if we are to favor keeping all values for this column family in the |
| HRegionServer cache.</dd> |
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| <div class="block">Gets whether the mob is enabled for the family.</div> |
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| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>True if the mob is enabled for the family.</dd> |
| </dl> |
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| We will also consider mvcc in versions. See HBASE-15968 for details.</div> |
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