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 <title>Nemo Release 0.2 | Nemo</title>
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 <meta name="description" content="Release Notes - Apache Nemo - Version 0.2 Sub-task [NEMO-350] - Implement Off-heap SerializedMemoryStore [NEMO-385] - Support Lambda Pass with lambda policy and lambda resource property [NEMO-387] - Support Lambda scheduler Bug [NEMO-80] - SLF4J: Failed to load class “org.slf4j.impl.StaticLoggerBinder” [NEMO-304] - Fail-fast for mis-configuration in user application [NEMO-321] - Fix the data skew pass metric mismatch [NEMO-327] - Fix skew handling for multi shuffle edge receiver [NEMO-357] - Fix broken link on README [NEMO-368] - NEMO-353 breaks the application from running in YARN environments [NEMO-402] - Broken guava version conflicts cause ERROR: Trying to remove a RunningJob that is unknown [NEMO-413] - Fix index checking for byte access of MemoryChunk using UNSAFE [NEMO-414] - Command-line specified runtime data plane configurations not applied [NEMO-416] - Guava vendor version conflict when deserializing Task object [NEMO-420] - OffHeapMemory configuration only supports a single type of executor New Feature [NEMO-335] - Using a database for recording metric data [NEMO-336] - Cost prediction using the metric data [NEMO-359] - implementation of getEstimatedSizeBytes in SourceVertex [NEMO-360] - Implementing an &#39;XGBoostPolicy&#39; [NEMO-388] - Off-heap memory management (reuse ByteBuffer) Improvement [NEMO-11] - Generalize Equality of Int Predicates for Loops [NEMO-162] - Add insertVertex() API in optimization pass [NEMO-182] - Consider reshaping in run-time optimization [NEMO-253] - Refactor getInternal(Main/Additional)OutputMap in TaskExecutor [NEMO-275] - Eager Garbage Collection for GroupByKey [NEMO-319] - Fix path to beam resources in examples in README [NEMO-320] - Make WebUI scale to big workloads [NEMO-323] - Upgrade current working version to 0.2-SNAPSHOT [NEMO-328] - Refactor IRDAG [NEMO-332] - Refactor RunTimePass [NEMO-337] - IRDAG Unit Tests [NEMO-338] - SkewSamplingPass [NEMO-340] - SonarCloud for PRs [NEMO-353] - Launch NEXMark applications [NEMO-356] - Visualize the name of beam transform in DAG [NEMO-358] - Recycling vertex ids while cloning a vertex [NEMO-369] - DirectByteArrayOutputStream usage refactoring [NEMO-390] - Address SonarCloud issues for the IR package [NEMO-391] - Set GrpcMessageEnvironment as a default implementation [NEMO-395] - Address SonarCloud issues for the scheduler package [NEMO-404] - Provide user argument to use lambda executor representer [NEMO-412] - Address Sonar Cloud issue for MemoryChunk [NEMO-418] - BlockFetchFailureProperty [NEMO-424] - Fix Sonarcloud bugs regarding Optional [NEMO-428] - Ignore .factorypath for rat check and version control Task [NEMO-25] - Improve WebUI to use RESTful APIs by Nemo [NEMO-153] - IR-based dynamic optimization for WordCount application [NEMO-154] - Handle skewness information in SchedulingConstraint [NEMO-193] - Revised version of IR-based dynamic optimization [NEMO-322] - Committer&#39;s guide [NEMO-361] - Consistency on indentations [NEMO-362] - Upgrade of checkstyle version [NEMO-364] - Upgrade Beam [NEMO-375] - Add option to turn off metric collection to DB [NEMO-379] - Change javadoc goal to a proper one [NEMO-383] - Implement DirectByteBufferOutputStream for Off-heap SerializedMemoryStore [NEMO-384] - Implement DirectByteBufferInputStream for Off-heap SerializedMemoryStore [NEMO-397] - Separation of JVM heap region and off-heap memory region [NEMO-399] - Include the official WordCount example on the Beam website [NEMO-400] - Javadoc compile error [NEMO-421] - Release v0.2 [NEMO-437] - Support Java version 11 Umbrella [NEMO-60] - IR-based dynamic optimization [NEMO-156] - Support Beam Nemo Runner [NEMO-157] - Support Nemo Streaming [NEMO-158] - Support Spark SQL Example [NEMO-159] - Nemo Web UI" />
 <meta property="og:description" content="Release Notes - Apache Nemo - Version 0.2 Sub-task [NEMO-350] - Implement Off-heap SerializedMemoryStore [NEMO-385] - Support Lambda Pass with lambda policy and lambda resource property [NEMO-387] - Support Lambda scheduler Bug [NEMO-80] - SLF4J: Failed to load class “org.slf4j.impl.StaticLoggerBinder” [NEMO-304] - Fail-fast for mis-configuration in user application [NEMO-321] - Fix the data skew pass metric mismatch [NEMO-327] - Fix skew handling for multi shuffle edge receiver [NEMO-357] - Fix broken link on README [NEMO-368] - NEMO-353 breaks the application from running in YARN environments [NEMO-402] - Broken guava version conflicts cause ERROR: Trying to remove a RunningJob that is unknown [NEMO-413] - Fix index checking for byte access of MemoryChunk using UNSAFE [NEMO-414] - Command-line specified runtime data plane configurations not applied [NEMO-416] - Guava vendor version conflict when deserializing Task object [NEMO-420] - OffHeapMemory configuration only supports a single type of executor New Feature [NEMO-335] - Using a database for recording metric data [NEMO-336] - Cost prediction using the metric data [NEMO-359] - implementation of getEstimatedSizeBytes in SourceVertex [NEMO-360] - Implementing an &#39;XGBoostPolicy&#39; [NEMO-388] - Off-heap memory management (reuse ByteBuffer) Improvement [NEMO-11] - Generalize Equality of Int Predicates for Loops [NEMO-162] - Add insertVertex() API in optimization pass [NEMO-182] - Consider reshaping in run-time optimization [NEMO-253] - Refactor getInternal(Main/Additional)OutputMap in TaskExecutor [NEMO-275] - Eager Garbage Collection for GroupByKey [NEMO-319] - Fix path to beam resources in examples in README [NEMO-320] - Make WebUI scale to big workloads [NEMO-323] - Upgrade current working version to 0.2-SNAPSHOT [NEMO-328] - Refactor IRDAG [NEMO-332] - Refactor RunTimePass [NEMO-337] - IRDAG Unit Tests [NEMO-338] - SkewSamplingPass [NEMO-340] - SonarCloud for PRs [NEMO-353] - Launch NEXMark applications [NEMO-356] - Visualize the name of beam transform in DAG [NEMO-358] - Recycling vertex ids while cloning a vertex [NEMO-369] - DirectByteArrayOutputStream usage refactoring [NEMO-390] - Address SonarCloud issues for the IR package [NEMO-391] - Set GrpcMessageEnvironment as a default implementation [NEMO-395] - Address SonarCloud issues for the scheduler package [NEMO-404] - Provide user argument to use lambda executor representer [NEMO-412] - Address Sonar Cloud issue for MemoryChunk [NEMO-418] - BlockFetchFailureProperty [NEMO-424] - Fix Sonarcloud bugs regarding Optional [NEMO-428] - Ignore .factorypath for rat check and version control Task [NEMO-25] - Improve WebUI to use RESTful APIs by Nemo [NEMO-153] - IR-based dynamic optimization for WordCount application [NEMO-154] - Handle skewness information in SchedulingConstraint [NEMO-193] - Revised version of IR-based dynamic optimization [NEMO-322] - Committer&#39;s guide [NEMO-361] - Consistency on indentations [NEMO-362] - Upgrade of checkstyle version [NEMO-364] - Upgrade Beam [NEMO-375] - Add option to turn off metric collection to DB [NEMO-379] - Change javadoc goal to a proper one [NEMO-383] - Implement DirectByteBufferOutputStream for Off-heap SerializedMemoryStore [NEMO-384] - Implement DirectByteBufferInputStream for Off-heap SerializedMemoryStore [NEMO-397] - Separation of JVM heap region and off-heap memory region [NEMO-399] - Include the official WordCount example on the Beam website [NEMO-400] - Javadoc compile error [NEMO-421] - Release v0.2 [NEMO-437] - Support Java version 11 Umbrella [NEMO-60] - IR-based dynamic optimization [NEMO-156] - Support Beam Nemo Runner [NEMO-157] - Support Nemo Streaming [NEMO-158] - Support Spark SQL Example [NEMO-159] - Nemo Web UI" />
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                 <h4>RECENT POSTS</h4>
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                     <li><a href="/blog/2022/09/10/release-note-0.4/" >Nemo Release 0.4</a></li>

                     <li><a href="/blog/2022/08/15/beam-runner/" >Beam Nemo Runner documents updated!</a></li>

                     <li><a href="/blog/2022/06/07/release-note-0.3/" >Nemo Release 0.3</a></li>

                     <li><a href="/blog/2020/03/09/release-note-0.2/"  class="active" >Nemo Release 0.2</a></li>

                     <li><a href="/blog/2019/03/02/release-note-0.1/" >Nemo Release 0.1</a></li>

                     <li><a href="/blog/2018/03/23/shuffle-on-nemo/" >Optimizing shuffle performance using Nemo</a></li>

                     <li><a href="/blog/2018/03/23/pado-on-nemo/" >Harnessing transient resources using Nemo</a></li>

                     <li><a href="/blog/2018/03/20/nemo-blog-published/" >Nemo blog published!</a></li>

                     <li><a href="/allposts">All posts ...</a></li>
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             <h1>Nemo Release 0.2</h1>
             <p>Mar 9, 2020 • Wooyeon Lee</p>
             <div  id="markdown-content-container"><p>Release Notes - Apache Nemo - Version 0.2</p>

 <h2>        Sub-task
 </h2>
 <ul>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-350">NEMO-350</a>] -         Implement Off-heap SerializedMemoryStore
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-385">NEMO-385</a>] -         Support Lambda Pass with lambda policy and lambda resource property
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-387">NEMO-387</a>] -         Support Lambda scheduler
 </li>
 </ul>

 <h2>        Bug
 </h2>
 <ul>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-80">NEMO-80</a>] -         SLF4J: Failed to load class “org.slf4j.impl.StaticLoggerBinder”
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-304">NEMO-304</a>] -         Fail-fast for mis-configuration in user application
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-321">NEMO-321</a>] -         Fix the data skew pass metric mismatch
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-327">NEMO-327</a>] -         Fix skew handling for multi shuffle edge receiver
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-357">NEMO-357</a>] -         Fix broken link on README
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-368">NEMO-368</a>] -         NEMO-353 breaks the application from running in YARN environments
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-402">NEMO-402</a>] -         Broken guava version conflicts cause ERROR: Trying to remove a RunningJob that is unknown
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-413">NEMO-413</a>] -         Fix index checking for byte access of MemoryChunk using UNSAFE
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-414">NEMO-414</a>] -         Command-line specified runtime data plane configurations not applied
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-416">NEMO-416</a>] -         Guava vendor version conflict when deserializing Task object
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-420">NEMO-420</a>] -         OffHeapMemory configuration only supports a single type of executor
 </li>
 </ul>

 <h2>        New Feature
 </h2>
 <ul>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-335">NEMO-335</a>] -         Using a database for recording metric data
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-336">NEMO-336</a>] -         Cost prediction using the metric data
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-359">NEMO-359</a>] -         implementation of getEstimatedSizeBytes in SourceVertex
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-360">NEMO-360</a>] -         Implementing an &#39;XGBoostPolicy&#39;
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-388">NEMO-388</a>] -         Off-heap memory management (reuse ByteBuffer)
 </li>
 </ul>

 <h2>        Improvement
 </h2>
 <ul>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-11">NEMO-11</a>] -         Generalize Equality of Int Predicates for Loops
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-162">NEMO-162</a>] -         Add insertVertex() API in optimization pass
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-182">NEMO-182</a>] -         Consider reshaping in run-time optimization
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-253">NEMO-253</a>] -         Refactor getInternal(Main/Additional)OutputMap in TaskExecutor
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-275">NEMO-275</a>] -         Eager Garbage Collection for GroupByKey
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-319">NEMO-319</a>] -         Fix path to beam resources in examples in README
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-320">NEMO-320</a>] -         Make WebUI scale to big workloads
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-323">NEMO-323</a>] -         Upgrade current working version to 0.2-SNAPSHOT
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-328">NEMO-328</a>] -         Refactor IRDAG
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-332">NEMO-332</a>] -         Refactor RunTimePass
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-337">NEMO-337</a>] -         IRDAG Unit Tests
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-338">NEMO-338</a>] -         SkewSamplingPass
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-340">NEMO-340</a>] -         SonarCloud for PRs
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-353">NEMO-353</a>] -         Launch NEXMark applications
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-356">NEMO-356</a>] -         Visualize the name of beam transform in DAG
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-358">NEMO-358</a>] -         Recycling vertex ids while cloning a vertex
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-369">NEMO-369</a>] -         DirectByteArrayOutputStream usage refactoring
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-390">NEMO-390</a>] -         Address SonarCloud issues for the IR package
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-391">NEMO-391</a>] -         Set GrpcMessageEnvironment as a default implementation
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-395">NEMO-395</a>] -         Address SonarCloud issues for the scheduler package
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-404">NEMO-404</a>] -         Provide user argument to use lambda executor representer
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-412">NEMO-412</a>] -         Address Sonar Cloud issue for MemoryChunk
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-418">NEMO-418</a>] -         BlockFetchFailureProperty
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-424">NEMO-424</a>] -         Fix Sonarcloud bugs regarding Optional
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-428">NEMO-428</a>] -         Ignore .factorypath for rat check and version control
 </li>
 </ul>

 <h2>        Task
 </h2>
 <ul>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-25">NEMO-25</a>] -         Improve WebUI to use RESTful APIs by Nemo
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-153">NEMO-153</a>] -         IR-based dynamic optimization for WordCount application
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-154">NEMO-154</a>] -         Handle skewness information in SchedulingConstraint
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-193">NEMO-193</a>] -         Revised version of IR-based dynamic optimization
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-322">NEMO-322</a>] -         Committer&#39;s guide
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-361">NEMO-361</a>] -         Consistency on indentations
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-362">NEMO-362</a>] -         Upgrade of checkstyle version
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-364">NEMO-364</a>] -         Upgrade Beam
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-375">NEMO-375</a>] -         Add option to turn off metric collection to DB
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-379">NEMO-379</a>] -         Change javadoc goal to a proper one
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-383">NEMO-383</a>] -         Implement DirectByteBufferOutputStream for Off-heap SerializedMemoryStore
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-384">NEMO-384</a>] -         Implement DirectByteBufferInputStream for Off-heap SerializedMemoryStore
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-397">NEMO-397</a>] -         Separation of JVM heap region and off-heap memory region
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-399">NEMO-399</a>] -         Include the official WordCount example on the Beam website
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-400">NEMO-400</a>] -         Javadoc compile error
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-421">NEMO-421</a>] -         Release v0.2
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-437">NEMO-437</a>] -         Support Java version 11
 </li>
 </ul>

 <h2>        Umbrella
 </h2>
 <ul>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-60">NEMO-60</a>] -         IR-based dynamic optimization
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-156">NEMO-156</a>] -         Support Beam Nemo Runner
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-157">NEMO-157</a>] -         Support Nemo Streaming
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-158">NEMO-158</a>] -         Support Spark SQL Example
 </li>
 <li>[<a href="https://issues.apache.org/jira/browse/NEMO-159">NEMO-159</a>] -         Nemo Web UI
 </li>
 </ul>

 <h3 id="list-of-contributors">List of Contributors</h3>

 <p>Nemo 0.2 was the work of many contributors:</p>

 <ul>
   <li>Arun Lakshman R</li>
   <li>Byung-Gon Chun</li>
   <li>Davor Bonaci</li>
   <li>Eunji Jeong</li>
   <li>Geon Woo Kim</li>
   <li>Gyewon Lee</li>
   <li>Haeyoon Cho</li>
   <li>Jae Hyeon Park</li>
   <li>JangHo Seo</li>
   <li>Jangho Seo</li>
   <li>Jean-Baptiste Onofré</li>
   <li>Jeongyoon Eo</li>
   <li>John Yang</li>
   <li>Joo Yeon Kim</li>
   <li>Kenn Knowles</li>
   <li>Markus Weimer</li>
   <li>Minhyeok Kweun</li>
   <li>Sanha Lee</li>
   <li>Seonghyun Park</li>
   <li>Soojeong Kim</li>
   <li>Taegeon Um</li>
   <li>Won Wook SONG</li>
   <li>Wooyeon Lee</li>
   <li>Yunseong Lee</li>
 </ul>

 </div>
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