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docItemCol_zHA2"><div class="theme-doc-version-banner alert alert--warning margin-bottom--md" role="alert"><div>This is documentation for <!-- -->Apache Hudi<!-- --> <b>0.13.0</b>, which is no longer actively maintained.</div><div class="margin-top--md">For up-to-date documentation, see the <b><a href="/cn/docs/disaster_recovery">latest version</a></b> (<!-- -->0.14.1<!-- -->).</div></div><div class="docItemContainer_oiyr"><article><span class="theme-doc-version-badge badge badge--secondary">Version: <!-- -->0.13.0</span><div class="tocCollapsible_aw-L theme-doc-toc-mobile tocMobile_Tx6Y"><button type="button" class="clean-btn tocCollapsibleButton_zr6a">On this page</button></div><div class="theme-doc-markdown markdown"><header><h1>Disaster Recovery</h1></header><p>Disaster Recovery is very much mission-critical for any software. Especially when it comes to data systems, the impact could be very serious |
| leading to delay in business decisions or even wrong business decisions at times. Apache Hudi has two operations to assist you in recovering |
| data from a previous state: <code>savepoint</code> and <code>restore</code>.</p><h2 class="anchor anchorWithStickyNavbar_y2LR" id="savepoint">Savepoint<a class="hash-link" href="#savepoint" title="Direct link to heading"></a></h2><p>As the name suggest, <code>savepoint</code> saves the table as of the commit time, so that it lets you restore the table to this |
| savepoint at a later point in time if need be. Care is taken to ensure cleaner will not clean up any files that are savepointed. |
| On similar lines, savepoint cannot be triggered on a commit that is already cleaned up. In simpler terms, this is synonymous |
| to taking a backup, just that we don't make a new copy of the table, but just save the state of the table elegantly so that |
| we can restore it later when in need.</p><h2 class="anchor anchorWithStickyNavbar_y2LR" id="restore">Restore<a class="hash-link" href="#restore" title="Direct link to heading"></a></h2><p>This operation lets you restore your table to one of the savepoint commit. This operation cannot be undone (or reversed) and so care |
| should be taken before doing a restore. Hudi will delete all data files and commit files (timeline files) greater than the |
| savepoint commit to which the table is being restored. You should pause all writes to the table when performing |
| a restore since they are likely to fail while the restore is in progress. Also, reads could also fail since snapshot queries |
| will be hitting latest files which has high possibility of getting deleted with restore.</p><h2 class="anchor anchorWithStickyNavbar_y2LR" id="runbook">Runbook<a class="hash-link" href="#runbook" title="Direct link to heading"></a></h2><p>Savepoint and restore can only be triggered from <code>hudi-cli</code>. Let's walk through an example of how one can take savepoint |
| and later restore the state of the table.</p><p>Let's create a hudi table via <code>spark-shell</code> and trigger a batch of inserts.</p><div class="codeBlockContainer_J+bg language-scala theme-code-block"><div class="codeBlockContent_csEI scala"><pre tabindex="0" class="prism-code language-scala codeBlock_rtdJ thin-scrollbar" style="color:#F8F8F2;background-color:#282A36"><code class="codeBlockLines_1zSZ"><span class="token-line" style="color:#F8F8F2"><span class="token plain">import org.apache.hudi.QuickstartUtils._</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">import scala.collection.JavaConversions._</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">import org.apache.spark.sql.SaveMode._</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">import org.apache.hudi.DataSourceReadOptions._</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">import org.apache.hudi.DataSourceWriteOptions._</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">import org.apache.hudi.config.HoodieWriteConfig._</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">val tableName = "hudi_trips_cow"</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">val basePath = "file:///tmp/hudi_trips_cow"</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">val dataGen = new DataGenerator</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">val inserts = convertToStringList(dataGen.generateInserts(10))</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">val df = spark.read.json(spark.sparkContext.parallelize(inserts, 2))</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">df.write.format("hudi").</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> options(getQuickstartWriteConfigs).</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> option(PRECOMBINE_FIELD_OPT_KEY, "ts").</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> option(RECORDKEY_FIELD_OPT_KEY, "uuid").</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> option(PARTITIONPATH_FIELD_OPT_KEY, "partitionpath").</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> option(TABLE_NAME, tableName).</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> mode(Overwrite).</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> save(basePath)</span><br></span></code></pre><button type="button" aria-label="Copy code to clipboard" class="copyButton_M3SB clean-btn">Copy</button></div></div><p>Let's add four more batches of inserts.</p><div class="codeBlockContainer_J+bg language-scala theme-code-block"><div class="codeBlockContent_csEI scala"><pre tabindex="0" class="prism-code language-scala codeBlock_rtdJ thin-scrollbar" style="color:#F8F8F2;background-color:#282A36"><code class="codeBlockLines_1zSZ"><span class="token-line" style="color:#F8F8F2"><span class="token plain">for (_ <- 1 to 4) {</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> val inserts = convertToStringList(dataGen.generateInserts(10))</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> val df = spark.read.json(spark.sparkContext.parallelize(inserts, 2))</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> df.write.format("hudi").</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> options(getQuickstartWriteConfigs).</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> option(PRECOMBINE_FIELD_OPT_KEY, "ts").</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> option(RECORDKEY_FIELD_OPT_KEY, "uuid").</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> option(PARTITIONPATH_FIELD_OPT_KEY, "partitionpath").</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> option(TABLE_NAME, tableName).</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> mode(Append).</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> save(basePath)</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">}</span><br></span></code></pre><button type="button" aria-label="Copy code to clipboard" class="copyButton_M3SB clean-btn">Copy</button></div></div><p>Total record count should be 50.</p><div class="codeBlockContainer_J+bg language-scala theme-code-block"><div class="codeBlockContent_csEI scala"><pre tabindex="0" class="prism-code language-scala codeBlock_rtdJ thin-scrollbar" style="color:#F8F8F2;background-color:#282A36"><code class="codeBlockLines_1zSZ"><span class="token-line" style="color:#F8F8F2"><span class="token plain">val tripsSnapshotDF = spark.</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> read.</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> format("hudi").</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> load(basePath)</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">tripsSnapshotDF.createOrReplaceTempView("hudi_trips_snapshot")</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">spark.sql("select count(partitionpath, uuid) from hudi_trips_snapshot").show()</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">+--------------------------+</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">|count(partitionpath, uuid)|</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">+--------------------------+</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">| 50|</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">+--------------------------+</span><br></span></code></pre><button type="button" aria-label="Copy code to clipboard" class="copyButton_M3SB clean-btn">Copy</button></div></div><div class="admonition admonition-danger alert alert--danger"><div class="admonition-heading"><h5><span class="admonition-icon"><svg xmlns="http://www.w3.org/2000/svg" width="12" height="16" viewBox="0 0 12 16"><path fill-rule="evenodd" d="M5.05.31c.81 2.17.41 3.38-.52 4.31C3.55 5.67 1.98 6.45.9 7.98c-1.45 2.05-1.7 6.53 3.53 7.7-2.2-1.16-2.67-4.52-.3-6.61-.61 2.03.53 3.33 1.94 2.86 1.39-.47 2.3.53 2.27 1.67-.02.78-.31 1.44-1.13 1.81 3.42-.59 4.78-3.42 4.78-5.56 0-2.84-2.53-3.22-1.25-5.61-1.52.13-2.03 1.13-1.89 2.75.09 1.08-1.02 1.8-1.86 1.33-.67-.41-.66-1.19-.06-1.78C8.18 5.31 8.68 2.45 5.05.32L5.03.3l.02.01z"></path></svg></span>Important:</h5></div><div class="admonition-content"><p>If you're facing <code>java.lang.IllegalArgumentException: For input string: "null"</code> exception, it means that you may need to |
| manually set the <code>LEGACY_PARQUET_NANOS_AS_LONG</code> to <code>false</code> i.e. add <code>--conf 'spark.hadoop.spark.sql.legacy.parquet.nanosAsLong=false'</code> |
| to your spark configuration while starting the spark session. For more information, read <a href="https://github.com/apache/hudi/issues/8061" target="_blank" rel="noopener noreferrer">here</a>.</p></div></div><p>Let's take a look at the timeline after 5 batches of inserts.</p><div class="codeBlockContainer_J+bg language-shell theme-code-block"><div class="codeBlockContent_csEI shell"><pre tabindex="0" class="prism-code language-shell codeBlock_rtdJ thin-scrollbar" style="color:#F8F8F2;background-color:#282A36"><code class="codeBlockLines_1zSZ"><span class="token-line" style="color:#F8F8F2"><span class="token function" style="color:rgb(80, 250, 123)">ls</span><span class="token plain"> -ltr /tmp/hudi_trips_cow/.hoodie </span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">total </span><span class="token number">128</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">drwxr-xr-x </span><span class="token number">2</span><span class="token plain"> nsb wheel </span><span class="token number">64</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:00 archived</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">546</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:00 hoodie.properties</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">0</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:00 </span><span class="token number">20220128160040171</span><span class="token plain">.commit.requested</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">2594</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:00 </span><span class="token number">20220128160040171</span><span class="token plain">.inflight</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">4374</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:00 </span><span class="token number">20220128160040171</span><span class="token plain">.commit</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">0</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:01 </span><span class="token number">20220128160124637</span><span class="token plain">.commit.requested</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">2594</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:01 </span><span class="token number">20220128160124637</span><span class="token plain">.inflight</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">4414</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:01 </span><span class="token number">20220128160124637</span><span class="token plain">.commit</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">0</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:02 </span><span class="token number">20220128160226172</span><span class="token plain">.commit.requested</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">2594</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:02 </span><span class="token number">20220128160226172</span><span class="token plain">.inflight</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">4427</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:02 </span><span class="token number">20220128160226172</span><span class="token plain">.commit</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">0</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:02 </span><span class="token number">20220128160229636</span><span class="token plain">.commit.requested</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">2594</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:02 </span><span class="token number">20220128160229636</span><span class="token plain">.inflight</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">4428</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:02 </span><span class="token number">20220128160229636</span><span class="token plain">.commit</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">0</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:02 </span><span class="token number">20220128160245447</span><span class="token plain">.commit.requested</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">2594</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:02 </span><span class="token number">20220128160245447</span><span class="token plain">.inflight</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">4428</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:02 </span><span class="token number">20220128160245447</span><span class="token plain">.commit</span><br></span></code></pre><button type="button" aria-label="Copy code to clipboard" class="copyButton_M3SB clean-btn">Copy</button></div></div><p>Let's trigger a savepoint as of the latest commit. Savepoint can only be done via <code>hudi-cli</code>.</p><div class="codeBlockContainer_J+bg language-sh theme-code-block"><div class="codeBlockContent_csEI sh"><pre tabindex="0" class="prism-code language-sh codeBlock_rtdJ thin-scrollbar" style="color:#F8F8F2;background-color:#282A36"><code class="codeBlockLines_1zSZ"><span class="token-line" style="color:#F8F8F2"><span class="token plain">./hudi-cli.sh</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">connect --path /tmp/hudi_trips_cow/</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">commits show</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">set --conf SPARK_HOME=<SPARK_HOME></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">savepoint create --commit 20220128160245447 --sparkMaster local[2]</span><br></span></code></pre><button type="button" aria-label="Copy code to clipboard" class="copyButton_M3SB clean-btn">Copy</button></div></div><div class="admonition admonition-note alert alert--secondary"><div class="admonition-heading"><h5><span class="admonition-icon"><svg xmlns="http://www.w3.org/2000/svg" width="14" height="16" viewBox="0 0 14 16"><path fill-rule="evenodd" d="M6.3 5.69a.942.942 0 0 1-.28-.7c0-.28.09-.52.28-.7.19-.18.42-.28.7-.28.28 0 .52.09.7.28.18.19.28.42.28.7 0 .28-.09.52-.28.7a1 1 0 0 1-.7.3c-.28 0-.52-.11-.7-.3zM8 7.99c-.02-.25-.11-.48-.31-.69-.2-.19-.42-.3-.69-.31H6c-.27.02-.48.13-.69.31-.2.2-.3.44-.31.69h1v3c.02.27.11.5.31.69.2.2.42.31.69.31h1c.27 0 .48-.11.69-.31.2-.19.3-.42.31-.69H8V7.98v.01zM7 2.3c-3.14 0-5.7 2.54-5.7 5.68 0 3.14 2.56 5.7 5.7 5.7s5.7-2.55 5.7-5.7c0-3.15-2.56-5.69-5.7-5.69v.01zM7 .98c3.86 0 7 3.14 7 7s-3.14 7-7 7-7-3.12-7-7 3.14-7 7-7z"></path></svg></span>NOTE:</h5></div><div class="admonition-content"><p>Make sure you replace 20220128160245447 with the latest commit in your table.</p></div></div><p>Let's check the timeline after savepoint.</p><div class="codeBlockContainer_J+bg language-shell theme-code-block"><div class="codeBlockContent_csEI shell"><pre tabindex="0" class="prism-code language-shell codeBlock_rtdJ thin-scrollbar" style="color:#F8F8F2;background-color:#282A36"><code class="codeBlockLines_1zSZ"><span class="token-line" style="color:#F8F8F2"><span class="token function" style="color:rgb(80, 250, 123)">ls</span><span class="token plain"> -ltr /tmp/hudi_trips_cow/.hoodie</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">total </span><span class="token number">136</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">drwxr-xr-x </span><span class="token number">2</span><span class="token plain"> nsb wheel </span><span class="token number">64</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:00 archived</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">546</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:00 hoodie.properties</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">0</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:00 </span><span class="token number">20220128160040171</span><span class="token plain">.commit.requested</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">2594</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:00 </span><span class="token number">20220128160040171</span><span class="token plain">.inflight</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">4374</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:00 </span><span class="token number">20220128160040171</span><span class="token plain">.commit</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">0</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:01 </span><span class="token number">20220128160124637</span><span class="token plain">.commit.requested</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">2594</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:01 </span><span class="token number">20220128160124637</span><span class="token plain">.inflight</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">4414</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:01 </span><span class="token number">20220128160124637</span><span class="token plain">.commit</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">0</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:02 </span><span class="token number">20220128160226172</span><span class="token plain">.commit.requested</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">2594</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:02 </span><span class="token number">20220128160226172</span><span class="token plain">.inflight</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">4427</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:02 </span><span class="token number">20220128160226172</span><span class="token plain">.commit</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">0</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:02 </span><span class="token number">20220128160229636</span><span class="token plain">.commit.requested</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">2594</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:02 </span><span class="token number">20220128160229636</span><span class="token plain">.inflight</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">4428</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:02 </span><span class="token number">20220128160229636</span><span class="token plain">.commit</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">0</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:02 </span><span class="token number">20220128160245447</span><span class="token plain">.commit.requested</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">2594</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:02 </span><span class="token number">20220128160245447</span><span class="token plain">.inflight</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">4428</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:02 </span><span class="token number">20220128160245447</span><span class="token plain">.commit</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">0</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:05 </span><span class="token number">20220128160245447</span><span class="token plain">.savepoint.inflight</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">1168</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:05 </span><span class="token number">20220128160245447</span><span class="token plain">.savepoint</span><br></span></code></pre><button type="button" aria-label="Copy code to clipboard" class="copyButton_M3SB clean-btn">Copy</button></div></div><p>You could notice that savepoint meta files are added which keeps track of the files that are part of the latest table snapshot.</p><p>Now, let's continue adding three more batches of inserts.</p><div class="codeBlockContainer_J+bg language-scala theme-code-block"><div class="codeBlockContent_csEI scala"><pre tabindex="0" class="prism-code language-scala codeBlock_rtdJ thin-scrollbar" style="color:#F8F8F2;background-color:#282A36"><code class="codeBlockLines_1zSZ"><span class="token-line" style="color:#F8F8F2"><span class="token plain">for (_ <- 1 to 3) {</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> val inserts = convertToStringList(dataGen.generateInserts(10))</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> val df = spark.read.json(spark.sparkContext.parallelize(inserts, 2))</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> df.write.format("hudi").</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> options(getQuickstartWriteConfigs).</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> option(PRECOMBINE_FIELD_OPT_KEY, "ts").</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> option(RECORDKEY_FIELD_OPT_KEY, "uuid").</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> option(PARTITIONPATH_FIELD_OPT_KEY, "partitionpath").</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> option(TABLE_NAME, tableName).</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> mode(Append).</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> save(basePath)</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">}</span><br></span></code></pre><button type="button" aria-label="Copy code to clipboard" class="copyButton_M3SB clean-btn">Copy</button></div></div><p>Total record count will be 80 since we have done 8 batches in total. (5 until savepoint and 3 after savepoint)</p><div class="codeBlockContainer_J+bg language-scala theme-code-block"><div class="codeBlockContent_csEI scala"><pre tabindex="0" class="prism-code language-scala codeBlock_rtdJ thin-scrollbar" style="color:#F8F8F2;background-color:#282A36"><code class="codeBlockLines_1zSZ"><span class="token-line" style="color:#F8F8F2"><span class="token plain">val tripsSnapshotDF = spark.</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> read.</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> format("hudi").</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> load(basePath)</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">tripsSnapshotDF.createOrReplaceTempView("hudi_trips_snapshot")</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">spark.sql("select count(partitionpath, uuid) from hudi_trips_snapshot").show()</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">+--------------------------+</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">|count(partitionpath, uuid)|</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">+--------------------------+</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">| 80|</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">+--------------------------+</span><br></span></code></pre><button type="button" aria-label="Copy code to clipboard" class="copyButton_M3SB clean-btn">Copy</button></div></div><p>Let's say something bad happened, and you want to restore your table to an older snapshot. As we called out earlier, we can |
| trigger restore only from <code>hudi-cli</code>. And do remember to bring down all of your writer processes while doing a restore.</p><p>Let's checkout timeline once, before we trigger the restore.</p><div class="codeBlockContainer_J+bg language-shell theme-code-block"><div class="codeBlockContent_csEI shell"><pre tabindex="0" class="prism-code language-shell codeBlock_rtdJ thin-scrollbar" style="color:#F8F8F2;background-color:#282A36"><code class="codeBlockLines_1zSZ"><span class="token-line" style="color:#F8F8F2"><span class="token function" style="color:rgb(80, 250, 123)">ls</span><span class="token plain"> -ltr /tmp/hudi_trips_cow/.hoodie</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">total </span><span class="token number">208</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">drwxr-xr-x </span><span class="token number">2</span><span class="token plain"> nsb wheel </span><span class="token number">64</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:00 archived</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">546</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:00 hoodie.properties</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">0</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:00 </span><span class="token number">20220128160040171</span><span class="token plain">.commit.requested</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">2594</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:00 </span><span class="token number">20220128160040171</span><span class="token plain">.inflight</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">4374</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:00 </span><span class="token number">20220128160040171</span><span class="token plain">.commit</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">0</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:01 </span><span class="token number">20220128160124637</span><span class="token plain">.commit.requested</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">2594</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:01 </span><span class="token number">20220128160124637</span><span class="token plain">.inflight</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">4414</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:01 </span><span class="token number">20220128160124637</span><span class="token plain">.commit</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">0</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:02 </span><span class="token number">20220128160226172</span><span class="token plain">.commit.requested</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">2594</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:02 </span><span class="token number">20220128160226172</span><span class="token plain">.inflight</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">4427</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:02 </span><span class="token number">20220128160226172</span><span class="token plain">.commit</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">0</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:02 </span><span class="token number">20220128160229636</span><span class="token plain">.commit.requested</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">2594</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:02 </span><span class="token number">20220128160229636</span><span class="token plain">.inflight</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">4428</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:02 </span><span class="token number">20220128160229636</span><span class="token plain">.commit</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">0</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:02 </span><span class="token number">20220128160245447</span><span class="token plain">.commit.requested</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">2594</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:02 </span><span class="token number">20220128160245447</span><span class="token plain">.inflight</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">4428</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:02 </span><span class="token number">20220128160245447</span><span class="token plain">.commit</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">0</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:05 </span><span class="token number">20220128160245447</span><span class="token plain">.savepoint.inflight</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">1168</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:05 </span><span class="token number">20220128160245447</span><span class="token plain">.savepoint</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">0</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:06 </span><span class="token number">20220128160620557</span><span class="token plain">.commit.requested</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">2594</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:06 </span><span class="token number">20220128160620557</span><span class="token plain">.inflight</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">4428</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:06 </span><span class="token number">20220128160620557</span><span class="token plain">.commit</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">0</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:06 </span><span class="token number">20220128160627501</span><span class="token plain">.commit.requested</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">2594</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:06 </span><span class="token number">20220128160627501</span><span class="token plain">.inflight</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">4428</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:06 </span><span class="token number">20220128160627501</span><span class="token plain">.commit</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">0</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:06 </span><span class="token number">20220128160630785</span><span class="token plain">.commit.requested</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">2594</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:06 </span><span class="token number">20220128160630785</span><span class="token plain">.inflight</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">4428</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:06 </span><span class="token number">20220128160630785</span><span class="token plain">.commit</span><br></span></code></pre><button type="button" aria-label="Copy code to clipboard" class="copyButton_M3SB clean-btn">Copy</button></div></div><p>If you are continuing in the same <code>hudi-cli</code> session, you can just execute <code>refresh</code> so that table state gets refreshed to |
| its latest state. If not, connect to the table again.</p><div class="codeBlockContainer_J+bg language-shell theme-code-block"><div class="codeBlockContent_csEI shell"><pre tabindex="0" class="prism-code language-shell codeBlock_rtdJ thin-scrollbar" style="color:#F8F8F2;background-color:#282A36"><code class="codeBlockLines_1zSZ"><span class="token-line" style="color:#F8F8F2"><span class="token plain">./hudi-cli.sh</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">connect --path /tmp/hudi_trips_cow/</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">commits show</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token builtin class-name" style="color:rgb(189, 147, 249)">set</span><span class="token plain"> --conf </span><span class="token assign-left variable" style="color:rgb(189, 147, 249);font-style:italic">SPARK_HOME</span><span class="token operator">=</span><span class="token operator"><</span><span class="token plain">SPARK_HOME</span><span class="token operator">></span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">savepoints show</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">╔═══════════════════╗</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">║ SavepointTime ║</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">╠═══════════════════╣</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">║ </span><span class="token number">20220128160245447</span><span class="token plain"> ║</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">╚═══════════════════╝</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">savepoint rollback --savepoint </span><span class="token number">20220128160245447</span><span class="token plain"> --sparkMaster local</span><span class="token punctuation" style="color:rgb(248, 248, 242)">[</span><span class="token number">2</span><span class="token punctuation" style="color:rgb(248, 248, 242)">]</span><br></span></code></pre><button type="button" aria-label="Copy code to clipboard" class="copyButton_M3SB clean-btn">Copy</button></div></div><div class="admonition admonition-note alert alert--secondary"><div class="admonition-heading"><h5><span class="admonition-icon"><svg xmlns="http://www.w3.org/2000/svg" width="14" height="16" viewBox="0 0 14 16"><path fill-rule="evenodd" d="M6.3 5.69a.942.942 0 0 1-.28-.7c0-.28.09-.52.28-.7.19-.18.42-.28.7-.28.28 0 .52.09.7.28.18.19.28.42.28.7 0 .28-.09.52-.28.7a1 1 0 0 1-.7.3c-.28 0-.52-.11-.7-.3zM8 7.99c-.02-.25-.11-.48-.31-.69-.2-.19-.42-.3-.69-.31H6c-.27.02-.48.13-.69.31-.2.2-.3.44-.31.69h1v3c.02.27.11.5.31.69.2.2.42.31.69.31h1c.27 0 .48-.11.69-.31.2-.19.3-.42.31-.69H8V7.98v.01zM7 2.3c-3.14 0-5.7 2.54-5.7 5.68 0 3.14 2.56 5.7 5.7 5.7s5.7-2.55 5.7-5.7c0-3.15-2.56-5.69-5.7-5.69v.01zM7 .98c3.86 0 7 3.14 7 7s-3.14 7-7 7-7-3.12-7-7 3.14-7 7-7z"></path></svg></span>NOTE:</h5></div><div class="admonition-content"><p>Make sure you replace 20220128160245447 with the latest savepoint in your table.</p></div></div><p>Hudi table should have been restored to the savepointed commit 20220128160245447. Both data files and timeline files should have |
| been deleted.</p><div class="codeBlockContainer_J+bg language-shell theme-code-block"><div class="codeBlockContent_csEI shell"><pre tabindex="0" class="prism-code language-shell codeBlock_rtdJ thin-scrollbar" style="color:#F8F8F2;background-color:#282A36"><code class="codeBlockLines_1zSZ"><span class="token-line" style="color:#F8F8F2"><span class="token function" style="color:rgb(80, 250, 123)">ls</span><span class="token plain"> -ltr /tmp/hudi_trips_cow/.hoodie</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">total </span><span class="token number">152</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">drwxr-xr-x </span><span class="token number">2</span><span class="token plain"> nsb wheel </span><span class="token number">64</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:00 archived</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">546</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:00 hoodie.properties</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">0</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:00 </span><span class="token number">20220128160040171</span><span class="token plain">.commit.requested</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">2594</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:00 </span><span class="token number">20220128160040171</span><span class="token plain">.inflight</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">4374</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:00 </span><span class="token number">20220128160040171</span><span class="token plain">.commit</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">0</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:01 </span><span class="token number">20220128160124637</span><span class="token plain">.commit.requested</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">2594</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:01 </span><span class="token number">20220128160124637</span><span class="token plain">.inflight</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">4414</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:01 </span><span class="token number">20220128160124637</span><span class="token plain">.commit</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">0</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:02 </span><span class="token number">20220128160226172</span><span class="token plain">.commit.requested</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">2594</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:02 </span><span class="token number">20220128160226172</span><span class="token plain">.inflight</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">4427</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:02 </span><span class="token number">20220128160226172</span><span class="token plain">.commit</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">0</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:02 </span><span class="token number">20220128160229636</span><span class="token plain">.commit.requested</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">2594</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:02 </span><span class="token number">20220128160229636</span><span class="token plain">.inflight</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">4428</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:02 </span><span class="token number">20220128160229636</span><span class="token plain">.commit</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">0</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:02 </span><span class="token number">20220128160245447</span><span class="token plain">.commit.requested</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">2594</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:02 </span><span class="token number">20220128160245447</span><span class="token plain">.inflight</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">4428</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:02 </span><span class="token number">20220128160245447</span><span class="token plain">.commit</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">0</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:05 </span><span class="token number">20220128160245447</span><span class="token plain">.savepoint.inflight</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">1168</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:05 </span><span class="token number">20220128160245447</span><span class="token plain">.savepoint</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">0</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:07 </span><span class="token number">20220128160732437</span><span class="token plain">.restore.inflight</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">-rw-r--r-- </span><span class="token number">1</span><span class="token plain"> nsb wheel </span><span class="token number">4152</span><span class="token plain"> Jan </span><span class="token number">28</span><span class="token plain"> </span><span class="token number">16</span><span class="token plain">:07 </span><span class="token number">20220128160732437</span><span class="token plain">.restore</span><br></span></code></pre><button type="button" aria-label="Copy code to clipboard" class="copyButton_M3SB clean-btn">Copy</button></div></div><p>Let's check the total record count in the table. Should match the records we had, just before we triggered the savepoint.</p><div class="codeBlockContainer_J+bg language-scala theme-code-block"><div class="codeBlockContent_csEI scala"><pre tabindex="0" class="prism-code language-scala codeBlock_rtdJ thin-scrollbar" style="color:#F8F8F2;background-color:#282A36"><code class="codeBlockLines_1zSZ"><span class="token-line" style="color:#F8F8F2"><span class="token plain">val tripsSnapshotDF = spark.</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> read.</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> format("hudi").</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> load(basePath)</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">tripsSnapshotDF.createOrReplaceTempView("hudi_trips_snapshot")</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">spark.sql("select count(partitionpath, uuid) from hudi_trips_snapshot").show()</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">+--------------------------+</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">|count(partitionpath, uuid)|</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">+--------------------------+</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">| 50|</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">+--------------------------+</span><br></span></code></pre><button type="button" aria-label="Copy code to clipboard" class="copyButton_M3SB clean-btn">Copy</button></div></div><p>As you could see, entire table state is restored back to the commit which was savepointed. Users can choose to trigger savepoint |
| at regular cadence and keep deleting older savepoints when new ones are created. <code>hudi-cli</code> has a command <code>savepoint delete</code> |
| to assist in deleting a savepoint. Please do remember that cleaner may not clean the files that are savepointed. And so users |
| should ensure they delete the savepoints from time to time. If not, the storage reclamation may not happen.</p><p>Note: Savepoint and restore for MOR table is available only from 0.11.</p></div><footer class="theme-doc-footer docusaurus-mt-lg"><div class="theme-doc-footer-edit-meta-row row"><div class="col"><a href="https://github.com/apache/hudi/tree/asf-site/website/versioned_docs/version-0.13.0/disaster_recovery.md" target="_blank" rel="noreferrer noopener" class="theme-edit-this-page"><svg fill="currentColor" height="20" width="20" viewBox="0 0 40 40" class="iconEdit_mS5F" aria-hidden="true"><g><path d="m34.5 11.7l-3 3.1-6.3-6.3 3.1-3q0.5-0.5 1.2-0.5t1.1 0.5l3.9 3.9q0.5 0.4 0.5 1.1t-0.5 1.2z m-29.5 17.1l18.4-18.5 6.3 6.3-18.4 18.4h-6.3v-6.2z"></path></g></svg>Edit this page</a></div><div class="col lastUpdated_mt2f"></div></div></footer></article><nav class="pagination-nav docusaurus-mt-lg" aria-label="Docs pages navigation"><div class="pagination-nav__item"><a class="pagination-nav__link" href="/cn/docs/0.13.0/file_sizing"><div 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