http://git-wip-us.apache.org/repos/asf/hbase-site/blob/174c22ea/book.html ---------------------------------------------------------------------- diff --git a/book.html b/book.html index 233b28d..0621ea8 100644 --- a/book.html +++ b/book.html @@ -901,7 +901,7 @@ The following command starts 3 backup servers using ports 16002/16012, 16003/160 </div> <div class="listingblock"> <div class="content"> -<pre>$ ./bin/local-master-backup.sh 2 3 5</pre> +<pre>$ ./bin/local-master-backup.sh start 2 3 5</pre> </div> </div> <div class="paragraph"> @@ -6751,6 +6751,12 @@ Quitting...</code></pre> <li> <p>The metric 'blockCacheEvictionCount' published on a per-region server basis no longer includes blocks removed from the cache due to the invalidation of the hfiles they are from (e.g. via compaction).</p> </li> +<li> +<p>The metric 'totalRequestCount' increments once per request; previously it incremented by the number of <code>Actions</code> carried in the request; e.g. if a request was a <code>multi</code> made of four Gets and two Puts, we’d increment 'totalRequestCount' by six; now we increment by one regardless. Expect to see lower values for this metric in hbase-2.0.0.</p> +</li> +<li> +<p>The 'readRequestCount' now counts reads that return a non-empty row where in older hbases, we’d increment 'readRequestCount' whether a Result or not. This change will flatten the profile of the read-requests graphs if requests for non-existent rows. A YCSB read-heavy workload can do this dependent on how the database was loaded.</p> +</li> </ul> </div> <div class="paragraph"> @@ -6763,6 +6769,16 @@ Quitting...</code></pre> </li> </ul> </div> +<div class="paragraph"> +<p>The following metrics have been added:</p> +</div> +<div class="ulist"> +<ul> +<li> +<p>'totalRowActionRequestCount' is a count of region row actions summing reads and writes.</p> +</li> +</ul> +</div> <div id="upgrade2.0.zkconfig" class="paragraph"> <div class="title">ZooKeeper configs no longer read from zoo.cfg</div> <p>HBase no longer optionally reads the 'zoo.cfg' file for ZooKeeper related configuration settings. If you previously relied on the 'hbase.config.read.zookeeper.config' config for this functionality, you should migrate any needed settings to the hbase-site.xml file while adding the prefix 'hbase.zookeeper.property.' to each property name.</p> @@ -6786,6 +6802,34 @@ Quitting...</code></pre> <p>A number of admin commands are known to not work when used from a pre-HBase 2.0 client. This includes an HBase Shell that has the library jars from pre-HBase 2.0. You will need to plan for an outage of use of admin APIs and commands until you can also update to the needed client version.</p> </div> <div class="paragraph"> +<p>The following client operations do not work against HBase 2.0+ cluster when executed from a pre-HBase 2.0 client:</p> +</div> +<div class="ulist"> +<ul> +<li> +<p>list_procedures</p> +</li> +<li> +<p>split</p> +</li> +<li> +<p>merge_region</p> +</li> +<li> +<p>list_quotas</p> +</li> +<li> +<p>enable_table_replication</p> +</li> +<li> +<p>disable_table_replication</p> +</li> +<li> +<p>Snapshot related commands</p> +</li> +</ul> +</div> +<div class="paragraph"> <div class="title">Deprecated in 1.0 admin commands have been removed.</div> <p>The following commands that were deprecated in 1.0 have been removed. Where applicable the replacement command is listed.</p> </div> @@ -14702,8 +14746,11 @@ If writing to the WAL fails, the entire operation to modify the data fails.</p> </div> <div class="paragraph"> <p>HBase uses an implementation of the <a href="https://hbase.apache.org/devapidocs/org/apache/hadoop/hbase/wal/WAL.html";>WAL</a> interface. -Usually, there is only one instance of a WAL per RegionServer. -The RegionServer records Puts and Deletes to it, before recording them to the <a href="#store.memstore">MemStore</a> for the affected <a href="#store">Store</a>.</p> +Usually, there is only one instance of a WAL per RegionServer. An exception +is the RegionServer that is carrying <em>hbase:meta</em>; the <em>meta</em> table gets its +own dedicated WAL. +The RegionServer records Puts and Deletes to its WAL, before recording them +these Mutations <a href="#store.memstore">MemStore</a> for the affected <a href="#store">Store</a>.</p> </div> <div class="admonitionblock note"> <table> @@ -14723,14 +14770,46 @@ You will likely find references to the HLog in documentation tailored to these o </table> </div> <div class="paragraph"> -<p>The WAL resides in HDFS in the <em>/hbase/WALs/</em> directory (prior to HBase 0.94, they were stored in <em>/hbase/.logs/</em>), with subdirectories per region.</p> +<p>The WAL resides in HDFS in the <em>/hbase/WALs/</em> directory, with subdirectories per region.</p> +</div> +<div class="paragraph"> +<p>For more general information about the concept of write ahead logs, see the Wikipedia +<a href="http://en.wikipedia.org/wiki/Write-ahead_logging";>Write-Ahead Log</a> article.</p> +</div> +</div> +<div class="sect3"> +<h4 id="wal.providers"><a class="anchor" href="#wal.providers"></a>70.6.2. WAL Providers</h4> +<div class="paragraph"> +<p>In HBase, there are a number of WAL imlementations (or 'Providers'). Each is known +by a short name label (that unfortunately is not always descriptive). You set the provider in +<em>hbase-site.xml</em> passing the WAL provder short-name as the value on the +<em>hbase.wal.provider</em> property (Set the provider for <em>hbase:meta</em> using the +<em>hbase.wal.meta_provider</em> property).</p> +</div> +<div class="ulist"> +<ul> +<li> +<p><em>asyncfs</em>: The <strong>default</strong>. New since hbase-2.0.0 (HBASE-15536, HBASE-14790). This <em>AsyncFSWAL</em> provider, as it identifies itself in RegionServer logs, is built on a new non-blocking dfsclient implementation. It is currently resident in the hbase codebase but intent is to move it back up into HDFS itself. WALs edits are written concurrently ("fan-out") style to each of the WAL-block replicas on each DataNode rather than in a chained pipeline as the default client does. Latencies should be better. See <a href="https://www.slideshare.net/HBaseCon/apache-hbase-improvements-and-practices-at-xiaomi";>Apache HBase Improements and Practices at Xiaomi</a> at slide 14 onward for more detail on implementation.</p> +</li> +<li> +<p><em>filesystem</em>: This was the default in hbase-1.x releases. It is built on the blocking <em>DFSClient</em> and writes to replicas in classic <em>DFSCLient</em> pipeline mode. In logs it identifies as <em>FSHLog</em> or <em>FSHLogProvider</em>.</p> +</li> +<li> +<p><em>multiwal</em>: This provider is made of multiple instances of <em>asyncfs</em> or <em>filesystem</em>. See the next section for more on <em>multiwal</em>.</p> +</li> +</ul> </div> <div class="paragraph"> -<p>For more general information about the concept of write ahead logs, see the Wikipedia <a href="http://en.wikipedia.org/wiki/Write-ahead_logging";>Write-Ahead Log</a> article.</p> +<p>Look for the lines like the below in the RegionServer log to see which provider is in place (The below shows the default AsyncFSWALProvider):</p> +</div> +<div class="listingblock"> +<div class="content"> +<pre>2018-04-02 13:22:37,983 INFO [regionserver/ve0528:16020] wal.WALFactory: Instantiating WALProvider of type class org.apache.hadoop.hbase.wal.AsyncFSWALProvider</pre> +</div> </div> </div> <div class="sect3"> -<h4 id="_multiwal"><a class="anchor" href="#_multiwal"></a>70.6.2. MultiWAL</h4> +<h4 id="_multiwal"><a class="anchor" href="#_multiwal"></a>70.6.3. MultiWAL</h4> <div class="paragraph"> <p>With a single WAL per RegionServer, the RegionServer must write to the WAL serially, because HDFS files must be sequential. This causes the WAL to be a performance bottleneck.</p> </div> @@ -14760,13 +14839,13 @@ You will likely find references to the HLog in documentation tailored to these o </div> </div> <div class="sect3"> -<h4 id="wal_flush"><a class="anchor" href="#wal_flush"></a>70.6.3. WAL Flushing</h4> +<h4 id="wal_flush"><a class="anchor" href="#wal_flush"></a>70.6.4. WAL Flushing</h4> <div class="paragraph"> <p>TODO (describe).</p> </div> </div> <div class="sect3"> -<h4 id="_wal_splitting"><a class="anchor" href="#_wal_splitting"></a>70.6.4. WAL Splitting</h4> +<h4 id="_wal_splitting"><a class="anchor" href="#_wal_splitting"></a>70.6.5. WAL Splitting</h4> <div class="paragraph"> <p>A RegionServer serves many regions. All of the regions in a region server share the same active WAL file. @@ -15099,7 +15178,7 @@ If none are found, it throws an exception so that the log splitting can be retri </div> </div> <div class="sect3"> -<h4 id="wal.compression"><a class="anchor" href="#wal.compression"></a>70.6.5. WAL Compression</h4> +<h4 id="wal.compression"><a class="anchor" href="#wal.compression"></a>70.6.6. WAL Compression</h4> <div class="paragraph"> <p>The content of the WAL can be compressed using LRU Dictionary compression. This can be used to speed up WAL replication to different datanodes. @@ -15118,7 +15197,33 @@ dictionary because of an abrupt termination, a read of this last block may not b </div> </div> <div class="sect3"> -<h4 id="wal.disable"><a class="anchor" href="#wal.disable"></a>70.6.6. Disabling the WAL</h4> +<h4 id="wal.durability"><a class="anchor" href="#wal.durability"></a>70.6.7. Durability</h4> +<div class="paragraph"> +<p>It is possible to set <em>durability</em> on each Mutation or on a Table basis. Options include:</p> +</div> +<div class="ulist"> +<ul> +<li> +<p><em>SKIP_WAL</em>: Do not write Mutations to the WAL (See the next section, <a href="#wal.disable">Disabling the WAL</a>).</p> +</li> +<li> +<p><em>ASYNC_WAL</em>: Write the WAL asynchronously; do not hold-up clients waiting on the sync of their write to the filesystem but return immediately; the Mutation will be flushed to the WAL at a later time. This option currently may lose data. See HBASE-16689.</p> +</li> +<li> +<p><em>SYNC_WAL</em>: The <strong>default</strong>. Each edit is sync’d to HDFS before we return success to the client.</p> +</li> +<li> +<p><em>FSYNC_WAL</em>: Each edit is fsync’d to HDFS and the filesystem before we return success to the client.</p> +</li> +</ul> +</div> +<div class="paragraph"> +<p>Do not confuse the <em>ASYNC_WAL</em> option on a Mutation or Table with the <em>AsyncFSWAL</em> writer; they are distinct +options unfortunately closely named</p> +</div> +</div> +<div class="sect3"> +<h4 id="wal.disable"><a class="anchor" href="#wal.disable"></a>70.6.8. Disabling the WAL</h4> <div class="paragraph"> <p>It is possible to disable the WAL, to improve performance in certain specific situations. However, disabling the WAL puts your data at risk. @@ -17588,6 +17693,14 @@ configure the MOB file reader’s cache settings for each RegionServer (see Client code does not need to change to take advantage of HBase MOB support. The feature is transparent to the client.</p> </div> +<div class="paragraph"> +<p>MOB compaction</p> +</div> +<div class="paragraph"> +<p>MOB data is flushed into MOB files after MemStore flush. There will be lots of MOB files +after some time. To reduce MOB file count, there is a periodic task which compacts +small MOB files into a large one (MOB compaction).</p> +</div> <div class="sect2"> <h3 id="_configuring_columns_for_mob"><a class="anchor" href="#_configuring_columns_for_mob"></a>75.1. Configuring Columns for MOB</h3> <div class="paragraph"> @@ -17625,7 +17738,54 @@ hcd.setMobThreshold(<span class="integer">102400L</span>); </div> </div> <div class="sect2"> -<h3 id="_testing_mob"><a class="anchor" href="#_testing_mob"></a>75.2. Testing MOB</h3> +<h3 id="_configure_mob_compaction_policy"><a class="anchor" href="#_configure_mob_compaction_policy"></a>75.2. Configure MOB Compaction Policy</h3> +<div class="paragraph"> +<p>By default, MOB files for one specific day are compacted into one large MOB file. +To reduce MOB file count more, there are other MOB Compaction policies supported.</p> +</div> +<div class="paragraph"> +<p>daily policy - compact MOB Files for one day into one large MOB file (default policy) +weekly policy - compact MOB Files for one week into one large MOB file +montly policy - compact MOB Files for one month into one large MOB File</p> +</div> +<div class="exampleblock"> +<div class="title">Example 39. Configure MOB compaction policy Using HBase Shell</div> +<div class="content"> +<div class="listingblock"> +<div class="content"> +<pre>hbase> create 't1', {NAME => 'f1', IS_MOB => true, MOB_THRESHOLD => 102400, MOB_COMPACT_PARTITION_POLICY => 'daily'} +hbase> create 't1', {NAME => 'f1', IS_MOB => true, MOB_THRESHOLD => 102400, MOB_COMPACT_PARTITION_POLICY => 'weekly'} +hbase> create 't1', {NAME => 'f1', IS_MOB => true, MOB_THRESHOLD => 102400, MOB_COMPACT_PARTITION_POLICY => 'monthly'} + +hbase> alter 't1', {NAME => 'f1', IS_MOB => true, MOB_THRESHOLD => 102400, MOB_COMPACT_PARTITION_POLICY => 'daily'} +hbase> alter 't1', {NAME => 'f1', IS_MOB => true, MOB_THRESHOLD => 102400, MOB_COMPACT_PARTITION_POLICY => 'weekly'} +hbase> alter 't1', {NAME => 'f1', IS_MOB => true, MOB_THRESHOLD => 102400, MOB_COMPACT_PARTITION_POLICY => 'monthly'}</pre> +</div> +</div> +</div> +</div> +</div> +<div class="sect2"> +<h3 id="_configure_mob_compaction_mergeable_threshold"><a class="anchor" href="#_configure_mob_compaction_mergeable_threshold"></a>75.3. Configure MOB Compaction mergeable threshold</h3> +<div class="paragraph"> +<p>If the size of a mob file is less than this value, it’s regarded as a small file and needs to +be merged in mob compaction. The default value is 1280MB.</p> +</div> +<div class="exampleblock"> +<div class="content"> +<div class="listingblock"> +<div class="content"> +<pre class="CodeRay highlight"><code data-lang="xml"><span class="tag"><property></span> + <span class="tag"><name></span>hbase.mob.compaction.mergeable.threshold<span class="tag"></name></span> + <span class="tag"><value></span>10000000000<span class="tag"></value></span> +<span class="tag"></property></span></code></pre> +</div> +</div> +</div> +</div> +</div> +<div class="sect2"> +<h3 id="_testing_mob"><a class="anchor" href="#_testing_mob"></a>75.4. Testing MOB</h3> <div class="paragraph"> <p>The utility <code>org.apache.hadoop.hbase.IntegrationTestIngestWithMOB</code> is provided to assist with testing the MOB feature. The utility is run as follows:</p> @@ -17656,7 +17816,7 @@ The default is 5 kB, expressed in bytes.</p> </div> </div> <div class="sect2"> -<h3 id="mob.cache.configure"><a class="anchor" href="#mob.cache.configure"></a>75.3. Configuring the MOB Cache</h3> +<h3 id="mob.cache.configure"><a class="anchor" href="#mob.cache.configure"></a>75.5. Configuring the MOB Cache</h3> <div class="paragraph"> <p>Because there can be a large number of MOB files at any time, as compared to the number of HFiles, MOB files are not always kept open. The MOB file reader cache is a LRU cache which keeps the most @@ -17665,7 +17825,7 @@ the following properties to the RegionServer’s <code>hbase-site.xml</code> suit your environment, and restart or rolling restart the RegionServer.</p> </div> <div class="exampleblock"> -<div class="title">Example 39. Example MOB Cache Configuration</div> +<div class="title">Example 40. Example MOB Cache Configuration</div> <div class="content"> <div class="listingblock"> <div class="content"> @@ -17705,9 +17865,9 @@ suit your environment, and restart or rolling restart the RegionServer.</p> </div> </div> <div class="sect2"> -<h3 id="_mob_optimization_tasks"><a class="anchor" href="#_mob_optimization_tasks"></a>75.4. MOB Optimization Tasks</h3> +<h3 id="_mob_optimization_tasks"><a class="anchor" href="#_mob_optimization_tasks"></a>75.6. MOB Optimization Tasks</h3> <div class="sect3"> -<h4 id="_manually_compacting_mob_files"><a class="anchor" href="#_manually_compacting_mob_files"></a>75.4.1. Manually Compacting MOB Files</h4> +<h4 id="_manually_compacting_mob_files"><a class="anchor" href="#_manually_compacting_mob_files"></a>75.6.1. Manually Compacting MOB Files</h4> <div class="paragraph"> <p>To manually compact MOB files, rather than waiting for the <a href="#mob.cache.configure">configuration</a> to trigger compaction, use the @@ -19123,7 +19283,7 @@ See <a href="#external_apis">Apache HBase External APIs</a> for more information <h2 id="_examples"><a class="anchor" href="#_examples"></a>92. Examples</h2> <div class="sectionbody"> <div class="exampleblock"> -<div class="title">Example 40. Create, modify and delete a Table Using Java</div> +<div class="title">Example 41. Create, modify and delete a Table Using Java</div> <div class="content"> <div class="listingblock"> <div class="content"> @@ -19967,7 +20127,7 @@ represent persistent data.</p> <p>Download the code from <a href="http://code.google.com/p/hbase-jdo/"; class="bare">http://code.google.com/p/hbase-jdo/</a>.</p> </div> <div class="exampleblock"> -<div class="title">Example 41. JDO Example</div> +<div class="title">Example 42. JDO Example</div> <div class="content"> <div class="paragraph"> <p>This example uses JDO to create a table and an index, insert a row into a table, get @@ -20211,7 +20371,7 @@ $ bin/hbase org.python.util.jython</p> <div class="sect2"> <h3 id="_jython_code_examples"><a class="anchor" href="#_jython_code_examples"></a>98.2. Jython Code Examples</h3> <div class="exampleblock"> -<div class="title">Example 42. Table Creation, Population, Get, and Delete with Jython</div> +<div class="title">Example 43. Table Creation, Population, Get, and Delete with Jython</div> <div class="content"> <div class="paragraph"> <p>The following Jython code example creates a table, populates it with data, fetches @@ -20268,7 +20428,7 @@ admin.deleteTable(desc.getName())</code></pre> </div> </div> <div class="exampleblock"> -<div class="title">Example 43. Table Scan Using Jython</div> +<div class="title">Example 44. Table Scan Using Jython</div> <div class="content"> <div class="paragraph"> <p>This example scans a table and returns the results that match a given family qualifier.</p> @@ -20392,7 +20552,7 @@ If single quotes are present in the argument, they must be escaped by an additio </dl> </div> <div class="exampleblock"> -<div class="title">Example 44. Compound Operators</div> +<div class="title">Example 45. Compound Operators</div> <div class="content"> <div class="paragraph"> <p>You can combine multiple operators to create a hierarchy of filters, such as the following example:</p> @@ -20421,7 +20581,7 @@ If single quotes are present in the argument, they must be escaped by an additio </ol> </div> <div class="exampleblock"> -<div class="title">Example 45. Precedence Example</div> +<div class="title">Example 46. Precedence Example</div> <div class="content"> <div class="listingblock"> <div class="content"> @@ -20780,7 +20940,7 @@ Executor as a multi-threaded client application. This allows any Spark Tasks running on the executors to access the shared Connection object.</p> </div> <div class="exampleblock"> -<div class="title">Example 46. HBaseContext Usage Example</div> +<div class="title">Example 47. HBaseContext Usage Example</div> <div class="content"> <div class="paragraph"> <p>This example shows how HBaseContext can be used to do a <code>foreachPartition</code> on a RDD @@ -20942,7 +21102,7 @@ access to HBase</p> </dl> </div> <div class="exampleblock"> -<div class="title">Example 47. <code>bulkPut</code> Example with DStreams</div> +<div class="title">Example 48. <code>bulkPut</code> Example with DStreams</div> <div class="content"> <div class="paragraph"> <p>Below is an example of bulkPut with DStreams. It is very close in feel to the RDD @@ -21017,7 +21177,7 @@ out directly from the reduce phase.</p> <p>First lets look at an example of using the basic bulk load functionality</p> </div> <div class="exampleblock"> -<div class="title">Example 48. Bulk Loading Example</div> +<div class="title">Example 49. Bulk Loading Example</div> <div class="content"> <div class="paragraph"> <p>The following example shows bulk loading with Spark.</p> @@ -21097,7 +21257,7 @@ to load the newly created HFiles into HBase.</p> </ul> </div> <div class="exampleblock"> -<div class="title">Example 49. Using Additional Parameters</div> +<div class="title">Example 50. Using Additional Parameters</div> <div class="content"> <div class="listingblock"> <div class="content"> @@ -21145,7 +21305,7 @@ load.doBulkLoad(new Path(stagingFolder.getPath), <p>Now lets look at how you would call the thin record bulk load implementation</p> </div> <div class="exampleblock"> -<div class="title">Example 50. Using thin record bulk load</div> +<div class="title">Example 51. Using thin record bulk load</div> <div class="content"> <div class="listingblock"> <div class="content"> @@ -21350,7 +21510,7 @@ The lifetime of this temporary table is tied to the SQLContext that was used to <div class="sect2"> <h3 id="_others"><a class="anchor" href="#_others"></a>103.6. Others</h3> <div class="exampleblock"> -<div class="title">Example 51. Query with different timestamps</div> +<div class="title">Example 52. Query with different timestamps</div> <div class="content"> <div class="paragraph"> <p>In HBaseSparkConf, four parameters related to timestamp can be set. They are TIMESTAMP, @@ -21397,7 +21557,7 @@ sqlContext.sql("select count(col1) from table").show</code></pre> </div> </div> <div class="exampleblock"> -<div class="title">Example 52. Native Avro support</div> +<div class="title">Example 53. Native Avro support</div> <div class="content"> <div class="paragraph"> <p>HBase-Spark Connector support different data formats like Avro, Jason, etc. The use case below @@ -22864,7 +23024,7 @@ It is useful for tuning the IO impact of prefetching versus the time before all <p>To enable prefetching on a given column family, you can use HBase Shell or use the API.</p> </div> <div class="exampleblock"> -<div class="title">Example 53. Enable Prefetch Using HBase Shell</div> +<div class="title">Example 54. Enable Prefetch Using HBase Shell</div> <div class="content"> <div class="listingblock"> <div class="content"> @@ -22874,7 +23034,7 @@ It is useful for tuning the IO impact of prefetching versus the time before all </div> </div> <div class="exampleblock"> -<div class="title">Example 54. Enable Prefetch Using the API</div> +<div class="title">Example 55. Enable Prefetch Using the API</div> <div class="content"> <div class="listingblock"> <div class="content"> @@ -23638,7 +23798,7 @@ If this is set to 0 (the default), hedged reads are disabled.</p> </ul> </div> <div class="exampleblock"> -<div class="title">Example 55. Hedged Reads Configuration Example</div> +<div class="title">Example 56. Hedged Reads Configuration Example</div> <div class="content"> <div class="listingblock"> <div class="content"> @@ -25828,6 +25988,22 @@ Usage: hbase canary [opts] [table1 [table2]...] | [regionserver1 [regionserver2] -D<configProperty>=<value> assigning or override the configuration params</pre> </div> </div> +<div class="admonitionblock note"> +<table> +<tr> +<td class="icon"> +<i class="fa icon-note" title="Note"></i> +</td> +<td class="content"> +The <code>Sink</code> class is instantiated using the <code>hbase.canary.sink.class</code> configuration property which +will also determine the used Monitor class. In the absence of this property RegionServerStdOutSink +will be used. You need to use the Sink according to the passed parameters to the <em>canary</em> command. +As an example you have to set <code>hbase.canary.sink.class</code> property to +<code>org.apache.hadoop.hbase.tool.Canary$RegionStdOutSink</code> for using table parameters. +</td> +</tr> +</table> +</div> <div class="paragraph"> <p>This tool will return non zero error codes to user for collaborating with other monitoring tools, such as Nagios. The error code definitions are:</p> @@ -26045,7 +26221,7 @@ exit code.</p> </ul> </div> <div class="exampleblock"> -<div class="title">Example 56. Canary in a Kerberos-Enabled Cluster</div> +<div class="title">Example 57. Canary in a Kerberos-Enabled Cluster</div> <div class="content"> <div class="paragraph"> <p>This example shows each of the properties with valid values.</p> @@ -27022,7 +27198,7 @@ The script requires you to set some environment variables before running it. Examine the script and modify it to suit your needs.</p> </div> <div class="exampleblock"> -<div class="title">Example 57. <em>rolling-restart.sh</em> General Usage</div> +<div class="title">Example 58. <em>rolling-restart.sh</em> General Usage</div> <div class="content"> <div class="listingblock"> <div class="content"> @@ -29837,7 +30013,7 @@ a similar issue in the future.</p> </ul> </div> <div class="exampleblock"> -<div class="title">Example 58. Code Blocks in Jira Comments</div> +<div class="title">Example 59. Code Blocks in Jira Comments</div> <div class="content"> <div class="paragraph"> <p>A commonly used macro in Jira is {code}. Everything inside the tags is preformatted, as in this example.</p> @@ -30280,7 +30456,7 @@ See <a href="#java">java</a> for Java requirements per HBase release.</p> </table> </div> <div id="maven.settings.xml" class="exampleblock"> -<div class="title">Example 59. Example <em>~/.m2/settings.xml</em> File</div> +<div class="title">Example 60. Example <em>~/.m2/settings.xml</em> File</div> <div class="content"> <div class="paragraph"> <p>Publishing to maven requires you sign the artifacts you want to upload. @@ -32299,7 +32475,7 @@ below.</p> </ul> </div> <div class="exampleblock"> -<div class="title">Example 60. Example of committing a Patch</div> +<div class="title">Example 61. Example of committing a Patch</div> <div class="content"> <div class="paragraph"> <p>One thing you will notice with these examples is that there are a lot of git pull commands. @@ -35793,7 +35969,7 @@ You do not need to re-create the table or copy data. If you are changing codecs, be sure the old codec is still available until all the old StoreFiles have been compacted.</p> </div> <div class="exampleblock"> -<div class="title">Example 61. Enabling Compression on a ColumnFamily of an Existing Table using HBaseShell</div> +<div class="title">Example 62. Enabling Compression on a ColumnFamily of an Existing Table using HBaseShell</div> <div class="content"> <div class="listingblock"> <div class="content"> @@ -35805,7 +35981,7 @@ hbase> enable 'test'</pre> </div> </div> <div class="exampleblock"> -<div class="title">Example 62. Creating a New Table with Compression On a ColumnFamily</div> +<div class="title">Example 63. Creating a New Table with Compression On a ColumnFamily</div> <div class="content"> <div class="listingblock"> <div class="content"> @@ -35815,7 +35991,7 @@ hbase> enable 'test'</pre> </div> </div> <div class="exampleblock"> -<div class="title">Example 63. Verifying a ColumnFamily’s Compression Settings</div> +<div class="title">Example 64. Verifying a ColumnFamily’s Compression Settings</div> <div class="content"> <div class="listingblock"> <div class="content"> @@ -35840,7 +36016,7 @@ DESCRIPTION ENABLED You must specify either <code>-write</code> or <code>-update-read</code> as your first parameter, and if you do not specify another parameter, usage advice is printed for each option.</p> </div> <div class="exampleblock"> -<div class="title">Example 64. LoadTestTool Usage</div> +<div class="title">Example 65. LoadTestTool Usage</div> <div class="content"> <div class="listingblock"> <div class="content"> @@ -35900,7 +36076,7 @@ Options: </div> </div> <div class="exampleblock"> -<div class="title">Example 65. Example Usage of LoadTestTool</div> +<div class="title">Example 66. Example Usage of LoadTestTool</div> <div class="content"> <div class="listingblock"> <div class="content"> @@ -35921,7 +36097,7 @@ Disable the table before altering its DATA_BLOCK_ENCODING setting. Following is an example using HBase Shell:</p> </div> <div class="exampleblock"> -<div class="title">Example 66. Enable Data Block Encoding On a Table</div> +<div class="title">Example 67. Enable Data Block Encoding On a Table</div> <div class="content"> <div class="listingblock"> <div class="content"> @@ -35939,7 +36115,7 @@ hbase> enable 'test' </div> </div> <div class="exampleblock"> -<div class="title">Example 67. Verifying a ColumnFamily’s Data Block Encoding</div> +<div class="title">Example 68. Verifying a ColumnFamily’s Data Block Encoding</div> <div class="content"> <div class="listingblock"> <div class="content"> @@ -37197,7 +37373,7 @@ The server will return cellblocks compressed using this same compressor as long <div id="footer"> <div id="footer-text"> Version 3.0.0-SNAPSHOT<br> -Last updated 2018-04-03 14:29:47 UTC +Last updated 2018-04-04 14:29:50 UTC </div> </div> </body>
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/174c22ea/bulk-loads.html ---------------------------------------------------------------------- diff --git a/bulk-loads.html b/bulk-loads.html index 0edf3af..2f77955 100644 --- a/bulk-loads.html +++ b/bulk-loads.html @@ -7,7 +7,7 @@ <head> <meta charset="UTF-8" /> <meta name="viewport" content="width=device-width, initial-scale=1.0" /> - <meta name="Date-Revision-yyyymmdd" content="20180403" /> + <meta name="Date-Revision-yyyymmdd" content="20180404" /> <meta http-equiv="Content-Language" content="en" /> <title>Apache HBase – Bulk Loads in Apache HBase (TM) @@ -296,7 +296,7 @@ under the License. --> <a href="https://www.apache.org/";>The Apache Software Foundation</a>. All rights reserved. - <li id="publishDate" class="pull-right">Last Published: 2018-04-03</li> + <li id="publishDate" class="pull-right">Last Published: 2018-04-04</li> </p> </div>
