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| <meta name="description" content="The Apache Flink community released the next bugfix version of the Apache Flink 1.12 series. |
| This release includes 83 fixes and minor improvements for Flink 1.12.1. The list below includes a detailed list of all fixes and improvements. |
| We highly recommend all users to upgrade to Flink 1.12.2. |
| Updated Maven dependencies: |
| <dependency> <groupId>org.apache.flink</groupId> <artifactId>flink-java</artifactId> <version>1.12.2</version> </dependency> <dependency> <groupId>org.apache.flink</groupId> <artifactId>flink-streaming-java_2.11</artifactId> <version>1.12.2</version> </dependency> <dependency> <groupId>org.apache.flink</groupId> <artifactId>flink-clients_2.11</artifactId> <version>1.12.2</version> </dependency> You can find the binaries on the updated Downloads page."> |
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| <meta property="og:description" content="The Apache Flink community released the next bugfix version of the Apache Flink 1.12 series. |
| This release includes 83 fixes and minor improvements for Flink 1.12.1. The list below includes a detailed list of all fixes and improvements. |
| We highly recommend all users to upgrade to Flink 1.12.2. |
| Updated Maven dependencies: |
| <dependency> <groupId>org.apache.flink</groupId> <artifactId>flink-java</artifactId> <version>1.12.2</version> </dependency> <dependency> <groupId>org.apache.flink</groupId> <artifactId>flink-streaming-java_2.11</artifactId> <version>1.12.2</version> </dependency> <dependency> <groupId>org.apache.flink</groupId> <artifactId>flink-clients_2.11</artifactId> <version>1.12.2</version> </dependency> You can find the binaries on the updated Downloads page." /> |
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| <h1> |
| <a href="/2021/03/03/apache-flink-1.12.2-released/">Apache Flink 1.12.2 Released</a> |
| </h1> |
| |
| |
| |
| March 3, 2021 - |
| |
| |
| |
| Yuan Mei |
| |
| |
| Roman Khachatryan |
| |
| |
| |
| |
| <p><p>The Apache Flink community released the next bugfix version of the Apache Flink 1.12 series.</p> |
| <p>This release includes 83 fixes and minor improvements for Flink 1.12.1. The list below includes a detailed list of all fixes and improvements.</p> |
| <p>We highly recommend all users to upgrade to Flink 1.12.2.</p> |
| <p>Updated Maven dependencies:</p> |
| <div class="highlight"><pre tabindex="0" class="chroma"><code class="language-xml" data-lang="xml"><span class="line"><span class="cl"><span class="nt"><dependency></span> |
| </span></span><span class="line"><span class="cl"> <span class="nt"><groupId></span>org.apache.flink<span class="nt"></groupId></span> |
| </span></span><span class="line"><span class="cl"> <span class="nt"><artifactId></span>flink-java<span class="nt"></artifactId></span> |
| </span></span><span class="line"><span class="cl"> <span class="nt"><version></span>1.12.2<span class="nt"></version></span> |
| </span></span><span class="line"><span class="cl"><span class="nt"></dependency></span> |
| </span></span><span class="line"><span class="cl"><span class="nt"><dependency></span> |
| </span></span><span class="line"><span class="cl"> <span class="nt"><groupId></span>org.apache.flink<span class="nt"></groupId></span> |
| </span></span><span class="line"><span class="cl"> <span class="nt"><artifactId></span>flink-streaming-java_2.11<span class="nt"></artifactId></span> |
| </span></span><span class="line"><span class="cl"> <span class="nt"><version></span>1.12.2<span class="nt"></version></span> |
| </span></span><span class="line"><span class="cl"><span class="nt"></dependency></span> |
| </span></span><span class="line"><span class="cl"><span class="nt"><dependency></span> |
| </span></span><span class="line"><span class="cl"> <span class="nt"><groupId></span>org.apache.flink<span class="nt"></groupId></span> |
| </span></span><span class="line"><span class="cl"> <span class="nt"><artifactId></span>flink-clients_2.11<span class="nt"></artifactId></span> |
| </span></span><span class="line"><span class="cl"> <span class="nt"><version></span>1.12.2<span class="nt"></version></span> |
| </span></span><span class="line"><span class="cl"><span class="nt"></dependency></span> |
| </span></span></code></pre></div><p>You can find the binaries on the updated <a href="/downloads.html">Downloads page</a>.</p> |
| <p>List of resolved issues:</p> |
| <h2> Sub-task |
| </h2> |
| <ul> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-21070'>FLINK-21070</a>] - Overloaded aggregate functions cause converter errors |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-21486'>FLINK-21486</a>] - Add sanity check when switching from Rocks to Heap timers |
| </li> |
| </ul> |
| <h2> Bug |
| </h2> |
| <ul> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-12461'>FLINK-12461</a>] - Document binary compatibility situation with Scala beyond 2.12.8 |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-16443'>FLINK-16443</a>] - Fix wrong fix for user-code CheckpointExceptions |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-19771'>FLINK-19771</a>] - NullPointerException when accessing null array from postgres in JDBC Connector |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-20309'>FLINK-20309</a>] - UnalignedCheckpointTestBase.execute is failed |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-20462'>FLINK-20462</a>] - MailboxOperatorTest.testAvoidTaskStarvation |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-20500'>FLINK-20500</a>] - UpsertKafkaTableITCase.testTemporalJoin test failed |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-20565'>FLINK-20565</a>] - Fix typo in EXPLAIN Statements docs. |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-20580'>FLINK-20580</a>] - Missing null value handling for SerializedValue's getByteArray() |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-20654'>FLINK-20654</a>] - Unaligned checkpoint recovery may lead to corrupted data stream |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-20663'>FLINK-20663</a>] - Managed memory may not be released in time when operators use managed memory frequently |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-20675'>FLINK-20675</a>] - Asynchronous checkpoint failure would not fail the job anymore |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-20680'>FLINK-20680</a>] - Fails to call var-arg function with no parameters |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-20798'>FLINK-20798</a>] - Using PVC as high-availability.storageDir could not work |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-20832'>FLINK-20832</a>] - Deliver bootstrap resouces ourselves for website and documentation |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-20848'>FLINK-20848</a>] - Kafka consumer ID is not specified correctly in new KafkaSource |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-20913'>FLINK-20913</a>] - Improve new HiveConf(jobConf, HiveConf.class) |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-20921'>FLINK-20921</a>] - Fix Date/Time/Timestamp in Python DataStream |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-20933'>FLINK-20933</a>] - Config Python Operator Use Managed Memory In Python DataStream |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-20942'>FLINK-20942</a>] - Digest of FLOAT literals throws UnsupportedOperationException |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-20944'>FLINK-20944</a>] - Launching in application mode requesting a ClusterIP rest service type results in an Exception |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-20947'>FLINK-20947</a>] - Idle source doesn't work when pushing watermark into the source |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-20961'>FLINK-20961</a>] - Flink throws NullPointerException for tables created from DataStream with no assigned timestamps and watermarks |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-20992'>FLINK-20992</a>] - Checkpoint cleanup can kill JobMaster |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-20998'>FLINK-20998</a>] - flink-raw-1.12.jar does not exist |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-21009'>FLINK-21009</a>] - Can not disable certain options in Elasticsearch 7 connector |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-21013'>FLINK-21013</a>] - Blink planner does not ingest timestamp into StreamRecord |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-21024'>FLINK-21024</a>] - Dynamic properties get exposed to job's main method if user parameters are passed |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-21028'>FLINK-21028</a>] - Streaming application didn't stop properly |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-21030'>FLINK-21030</a>] - Broken job restart for job with disjoint graph |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-21059'>FLINK-21059</a>] - KafkaSourceEnumerator does not honor consumer properties |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-21069'>FLINK-21069</a>] - Configuration "parallelism.default" doesn't take effect for TableEnvironment#explainSql |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-21071'>FLINK-21071</a>] - Snapshot branches running against flink-docker dev-master branch |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-21104'>FLINK-21104</a>] - UnalignedCheckpointITCase.execute failed with "IllegalStateException" |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-21132'>FLINK-21132</a>] - BoundedOneInput.endInput is called when taking synchronous savepoint |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-21138'>FLINK-21138</a>] - KvStateServerHandler is not invoked with user code classloader |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-21140'>FLINK-21140</a>] - Extract zip file dependencies before adding to PYTHONPATH |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-21144'>FLINK-21144</a>] - KubernetesResourceManagerDriver#tryResetPodCreationCoolDown causes fatal error |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-21155'>FLINK-21155</a>] - FileSourceTextLinesITCase.testBoundedTextFileSourceWithTaskManagerFailover does not pass |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-21158'>FLINK-21158</a>] - wrong jvm metaspace and overhead size show in taskmanager metric page |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-21163'>FLINK-21163</a>] - Python dependencies specified via CLI should not override the dependencies specified in configuration |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-21169'>FLINK-21169</a>] - Kafka flink-connector-base dependency should be scope compile |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-21208'>FLINK-21208</a>] - pyarrow exception when using window with pandas udaf |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-21213'>FLINK-21213</a>] - e2e test fail with 'As task is already not running, no longer decline checkpoint' |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-21215'>FLINK-21215</a>] - Checkpoint was declined because one input stream is finished |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-21216'>FLINK-21216</a>] - StreamPandasConversionTests Fails |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-21225'>FLINK-21225</a>] - OverConvertRule does not consider distinct |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-21226'>FLINK-21226</a>] - Reintroduce TableColumn.of for backwards compatibility |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-21274'>FLINK-21274</a>] - At per-job mode, during the exit of the JobManager process, if ioExecutor exits at the end, the System.exit() method will not be executed. |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-21277'>FLINK-21277</a>] - SQLClientSchemaRegistryITCase fails to download testcontainers/ryuk:0.3.0 |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-21312'>FLINK-21312</a>] - SavepointITCase.testStopSavepointWithBoundedInputConcurrently is unstable |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-21323'>FLINK-21323</a>] - Stop-with-savepoint is not supported by SourceOperatorStreamTask |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-21351'>FLINK-21351</a>] - Incremental checkpoint data would be lost once a non-stop savepoint completed |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-21361'>FLINK-21361</a>] - FlinkRelMdUniqueKeys matches on AbstractCatalogTable instead of CatalogTable |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-21412'>FLINK-21412</a>] - pyflink DataTypes.DECIMAL is not available |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-21452'>FLINK-21452</a>] - FLIP-27 sources cannot reliably downscale |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-21453'>FLINK-21453</a>] - BoundedOneInput.endInput is NOT called when doing stop with savepoint WITH drain |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-21490'>FLINK-21490</a>] - UnalignedCheckpointITCase fails on azure |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-21492'>FLINK-21492</a>] - ActiveResourceManager swallows exception stack trace |
| </li> |
| </ul> |
| <h2> New Feature |
| </h2> |
| <ul> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-20359'>FLINK-20359</a>] - Support adding Owner Reference to Job Manager in native kubernetes setup |
| </li> |
| </ul> |
| <h2> Improvement |
| </h2> |
| <ul> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-9844'>FLINK-9844</a>] - PackagedProgram does not close URLClassLoader |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-20417'>FLINK-20417</a>] - Handle "Too old resource version" exception in Kubernetes watch more gracefully |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-20491'>FLINK-20491</a>] - Support Broadcast Operation in BATCH execution mode |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-20517'>FLINK-20517</a>] - Support mixed keyed/non-keyed operations in BATCH execution mode |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-20770'>FLINK-20770</a>] - Incorrect description for config option kubernetes.rest-service.exposed.type |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-20907'>FLINK-20907</a>] - Table API documentation promotes deprecated syntax |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-21020'>FLINK-21020</a>] - Bump Jackson to 20.10.5[.1] / 2.12.1 |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-21034'>FLINK-21034</a>] - Rework jemalloc switch to use an environment variable |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-21035'>FLINK-21035</a>] - Deduplicate copy_plugins_if_required calls |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-21036'>FLINK-21036</a>] - Consider removing automatic configuration fo number of slots from docker |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-21037'>FLINK-21037</a>] - Deduplicate configuration logic in docker entrypoint |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-21042'>FLINK-21042</a>] - Fix code example in "Aggregate Functions" section in Table UDF page |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-21048'>FLINK-21048</a>] - Refactor documentation related to switch memory allocator |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-21123'>FLINK-21123</a>] - Upgrade Beanutils 1.9.x to 1.9.4 |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-21164'>FLINK-21164</a>] - Jar handlers don't cleanup temporarily extracted jars |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-21210'>FLINK-21210</a>] - ApplicationClusterEntryPoints should explicitly close PackagedProgram |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-21381'>FLINK-21381</a>] - Kubernetes HA documentation does not state required service account and role |
| </li> |
| </ul> |
| <h2> Task |
| </h2> |
| <ul> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-20529'>FLINK-20529</a>] - Publish Dockerfiles for release 1.12.0 |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-20534'>FLINK-20534</a>] - Add Flink 1.12 MigrationVersion |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-20536'>FLINK-20536</a>] - Update migration tests in master to cover migration from release-1.12 |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-20960'>FLINK-20960</a>] - Add warning in 1.12 release notes about potential corrupt data stream with unaligned checkpoint |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-21358'>FLINK-21358</a>] - Missing snapshot version compatibility for 1.12 |
| </li> |
| </ul> |
| </p> |
| </article> |
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