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| This release includes 104 bug fixes, vulnerability fixes, and minor improvements for Flink 1.16. Below you will find a list of all bugfixes and improvements (excluding improvements to the build infrastructure and build stability). For a complete list of all changes see: JIRA. |
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| <h1> |
| <a href="/2023/05/25/apache-flink-1.16.2-release-announcement/">Apache Flink 1.16.2 Release Announcement</a> |
| </h1> |
| |
| |
| |
| May 25, 2023 - |
| |
| |
| |
| Weijie Guo |
| |
| <a href="https://twitter.com/WeijieGuo12">(@WeijieGuo12)</a> |
| |
| |
| |
| |
| <p><p>The Apache Flink Community is pleased to announce the second bug fix release of the Flink 1.16 series.</p> |
| <p>This release includes 104 bug fixes, vulnerability fixes, and minor improvements for Flink 1.16. |
| Below you will find a list of all bugfixes and improvements (excluding improvements to the build infrastructure and build stability). For a complete list of all changes see: |
| <a href="https://issues.apache.org/jira/secure/ReleaseNote.jspa?projectId=12315522&version=12352765">JIRA</a>.</p> |
| <p>We highly recommend all users upgrade to Flink 1.16.2.</p> |
| <h1 id="release-artifacts"> |
| Release Artifacts |
| <a class="anchor" href="#release-artifacts">#</a> |
| </h1> |
| <h2 id="maven-dependencies"> |
| Maven Dependencies |
| <a class="anchor" href="#maven-dependencies">#</a> |
| </h2> |
| <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>1.16.2<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<span class="nt"></artifactId></span> |
| </span></span><span class="line"><span class="cl"> <span class="nt"><version></span>1.16.2<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<span class="nt"></artifactId></span> |
| </span></span><span class="line"><span class="cl"> <span class="nt"><version></span>1.16.2<span class="nt"></version></span> |
| </span></span><span class="line"><span class="cl"><span class="nt"></dependency></span> |
| </span></span></code></pre></div><h2 id="binaries"> |
| Binaries |
| <a class="anchor" href="#binaries">#</a> |
| </h2> |
| <p>You can find the binaries on the updated <a href="/downloads/">Downloads page</a>.</p> |
| <h2 id="docker-images"> |
| Docker Images |
| <a class="anchor" href="#docker-images">#</a> |
| </h2> |
| <ul> |
| <li><a href="https://hub.docker.com/_/flink/tags?page=1&name=1.16.2">library/flink</a> (official images)</li> |
| <li><a href="https://hub.docker.com/r/apache/flink/tags?page=1&name=1.16.2">apache/flink</a> (ASF repository)</li> |
| </ul> |
| <h2 id="pypi"> |
| PyPi |
| <a class="anchor" href="#pypi">#</a> |
| </h2> |
| <ul> |
| <li><a href="https://pypi.org/project/apache-flink/1.16.2/">apache-flink==1.16.2</a></li> |
| </ul> |
| <h1 id="release-notes"> |
| Release Notes |
| <a class="anchor" href="#release-notes">#</a> |
| </h1> |
| <h2> Bug |
| </h2> |
| <ul> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-27246'>FLINK-27246</a>] - Code of method "processElement(Lorg/apache/flink/streaming/runtime/streamrecord/StreamRecord;)V" of class "HashAggregateWithKeys$9211" grows beyond 64 KB |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-27800'>FLINK-27800</a>] - addInEdge check state error |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-27848'>FLINK-27848</a>] - ZooKeeperLeaderElectionDriver keeps writing leader information, using up zxid |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-28786'>FLINK-28786</a>] - Cannot run PyFlink 1.16 on MacOS with M1 chip |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-29852'>FLINK-29852</a>] - Adaptive Scheduler duplicates operators for each parallel instance in the Web UI |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-30461'>FLINK-30461</a>] - Some rocksdb sst files will remain forever |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-30462'>FLINK-30462</a>] - DefaultMultipleComponentLeaderElectionService saves wrong leader session ID |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-30477'>FLINK-30477</a>] - Not properly blocking retries when timeout occurs in AsyncWaitOperator |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-30561'>FLINK-30561</a>] - ChangelogStreamHandleReaderWithCache cause FileNotFoundException |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-30567'>FLINK-30567</a>] - Wrong insert overwrite behavior when the table contains uppercase character with Hive dialect |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-30679'>FLINK-30679</a>] - Can not load the data of hive dim table when project-push-down is introduced |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-30792'>FLINK-30792</a>] - clean up not uploaded state changes after materialization complete |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-30803'>FLINK-30803</a>] - PyFlink mishandles script dependencies |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-30864'>FLINK-30864</a>] - Optional pattern at the start of a group pattern not working |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-30876'>FLINK-30876</a>] - Fix ResetTransformationProcessor don't reset the transformation of ExecNode in BatchExecMultiInput.rootNode |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-30881'>FLINK-30881</a>] - Crictl/Minikube version mismatch causes errors in k8s setup |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-30885'>FLINK-30885</a>] - Optional group pattern starts with non-optional looping pattern get wrong result on followed-by |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-30917'>FLINK-30917</a>] - The user configured max parallelism does not take effect when using adaptive batch scheduler |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-30989'>FLINK-30989</a>] - Configuration table.exec.spill-compression.block-size not take effect in batch job |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-31017'>FLINK-31017</a>] - Early-started partial match timeout not yield completed matches |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-31041'>FLINK-31041</a>] - Build up of pending global failures causes JM instability |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-31042'>FLINK-31042</a>] - AfterMatchSkipStrategy not working on notFollowedBy ended pattern |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-31043'>FLINK-31043</a>] - KeyError exception is thrown in CachedMapState |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-31077'>FLINK-31077</a>] - Trigger checkpoint failed but it were shown as COMPLETED by rest API |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-31083'>FLINK-31083</a>] - Python ProcessFunction with OutputTag cannot be reused |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-31099'>FLINK-31099</a>] - Chained WindowOperator throws NPE in PyFlink ThreadMode |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-31131'>FLINK-31131</a>] - The INITIALIZING of ExecutionState is missed in the state_machine doc |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-31162'>FLINK-31162</a>] - Avoid setting private tokens to AM container context when kerberos delegation token fetch is disabled |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-31182'>FLINK-31182</a>] - CompiledPlan cannot deserialize BridgingSqlFunction with MissingTypeStrategy |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-31183'>FLINK-31183</a>] - Flink Kinesis EFO Consumer can fail to stop gracefully |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-31185'>FLINK-31185</a>] - Python BroadcastProcessFunction not support side output |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-31272'>FLINK-31272</a>] - Duplicate operators appear in the StreamGraph for Python DataStream API jobs |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-31273'>FLINK-31273</a>] - Left join with IS_NULL filter be wrongly pushed down and get wrong join results |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-31283'>FLINK-31283</a>] - Correct the description of building from source with scala version |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-31286'>FLINK-31286</a>] - Python processes are still alive when shutting down a session cluster directly without stopping the jobs |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-31293'>FLINK-31293</a>] - Request memory segment from LocalBufferPool may hanging forever. |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-31305'>FLINK-31305</a>] - KafkaWriter doesn't wait for errors for in-flight records before completing flush |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-31319'>FLINK-31319</a>] - Kafka new source partitionDiscoveryIntervalMs=0 cause bounded source can not quit |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-31346'>FLINK-31346</a>] - Batch shuffle IO scheduler does not throw TimeoutException if numRequestedBuffers is greater than 0 |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-31386'>FLINK-31386</a>] - Fix the potential deadlock issue of blocking shuffle |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-31414'>FLINK-31414</a>] - exceptions in the alignment timer are ignored |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-31437'>FLINK-31437</a>] - Wrong key 'lookup.cache.caching-missing-key' in connector documentation |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-31478'>FLINK-31478</a>] - TypeError: a bytes-like object is required, not 'JavaList' is thrown when ds.execute_and_collect() is called on a KeyedStream |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-31503'>FLINK-31503</a>] - "org.apache.beam.sdk.options.PipelineOptionsRegistrar: Provider org.apache.beam.sdk.options.DefaultPipelineOptionsRegistrar not a subtype" is thrown when executing Python UDFs in SQL Client |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-31588'>FLINK-31588</a>] - The unaligned checkpoint type is wrong at subtask level |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-31632'>FLINK-31632</a>] - watermark aligned idle source can't resume |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-31652'>FLINK-31652</a>] - Flink should handle the delete event if the pod was deleted while pending |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-31653'>FLINK-31653</a>] - Using`if` statement for a string subtype of the row type may meet npe in code generated by codegen |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-31657'>FLINK-31657</a>] - ConfigurationInfo generates incorrect openapi schema |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-31670'>FLINK-31670</a>] - ElasticSearch connector's document was not incorrect linked to external repo |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-31683'>FLINK-31683</a>] - Align the outdated Chinese filesystem connector docs |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-31690'>FLINK-31690</a>] - The current key is not set for KeyedCoProcessOperator |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-31707'>FLINK-31707</a>] - Constant string cannot be used as input arguments of Pandas UDAF |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-31743'>FLINK-31743</a>] - Avoid relocating the RocksDB's log failure when filename exceeds 255 characters |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-31763'>FLINK-31763</a>] - Convert requested buffers to overdraft buffers when pool size is decreased |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-31959'>FLINK-31959</a>] - Correct the unaligned checkpoint type at checkpoint level |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-31963'>FLINK-31963</a>] - java.lang.ArrayIndexOutOfBoundsException when scaling down with unaligned checkpoints |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-32010'>FLINK-32010</a>] - KubernetesLeaderRetrievalDriver always waits for lease update to resolve leadership |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-32027'>FLINK-32027</a>] - Batch jobs could hang at shuffle phase when max parallelism is really large |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-32029'>FLINK-32029</a>] - FutureUtils.handleUncaughtException swallows exceptions that are caused by the exception handler code |
| </li> |
| </ul> |
| <h2> Improvement |
| </h2> |
| <ul> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-25874'>FLINK-25874</a>] - PyFlink package dependencies conflict |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-29729'>FLINK-29729</a>] - Fix credential info configured in flink-conf.yaml is lost during creating ParquetReader |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-30962'>FLINK-30962</a>] - Improve error messaging when launching py4j gateway server |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-31031'>FLINK-31031</a>] - Disable the output buffer of Python process to make it more convenient for interactive users |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-31227'>FLINK-31227</a>] - Remove 'scala version' from file sink modules |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-31651'>FLINK-31651</a>] - Improve logging of granting/revoking leadership in JobMasterServiceLeadershipRunner to INFO level |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-31692'>FLINK-31692</a>] - Integrate MongoDB connector docs into Flink website |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-31703'>FLINK-31703</a>] - Update Flink docs for AWS v4.1.0 |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-31764'>FLINK-31764</a>] - Get rid of numberOfRequestedOverdraftMemorySegments in LocalBufferPool |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-31779'>FLINK-31779</a>] - Track stable branch of externalized connector instead of specific release tag |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-31799'>FLINK-31799</a>] - Python connector download link should refer to the url defined in externalized repository |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-31984'>FLINK-31984</a>] - Savepoint on S3 should be relocatable if entropy injection is not effective |
| </li> |
| <li>[<a href='https://issues.apache.org/jira/browse/FLINK-32024'>FLINK-32024</a>] - Short code related to externalized connector retrieve version from its own data yaml |
| </li> |
| </ul></p> |
| </article> |
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