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ASF GitHub Bot commented on FLINK-9577: --------------------------------------- GitHub user yanghua opened a pull request: https://github.com/apache/flink/pull/6165 [FLINK-9577] Divide-by-zero in PageRank ## What is the purpose of the change *This pull request fixed a divide-by-zero error in PageRank* ## Brief change log - *Add a judgement to avoid divide-by-zero error* ## Verifying this change This change is a trivial rework / code cleanup without any test coverage. ## Does this pull request potentially affect one of the following parts: - Dependencies (does it add or upgrade a dependency): (yes / **no**) - The public API, i.e., is any changed class annotated with `@Public(Evolving)`: (yes / **no**) - The serializers: (yes / **no** / don't know) - The runtime per-record code paths (performance sensitive): (yes / **no** / don't know) - Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Yarn/Mesos, ZooKeeper: (yes / **no** / don't know) - The S3 file system connector: (yes / **no** / don't know) ## Documentation - Does this pull request introduce a new feature? (yes / **no**) - If yes, how is the feature documented? (not applicable / docs / JavaDocs / **not documented**) You can merge this pull request into a Git repository by running: $ git pull https://github.com/yanghua/flink FLINK-9577 Alternatively you can review and apply these changes as the patch at: https://github.com/apache/flink/pull/6165.patch To close this pull request, make a commit to your master/trunk branch with (at least) the following in the commit message: This closes #6165 ---- commit cb790b3d6e581f64cb033914368424f7feb008b0 Author: yanghua <yanghua1127@...> Date: 2018-06-14T07:45:52Z [FLINK-9577] Divide-by-zero in PageRank ---- > Divide-by-zero in PageRank > -------------------------- > > Key: FLINK-9577 > URL: https://issues.apache.org/jira/browse/FLINK-9577 > Project: Flink > Issue Type: Bug > Components: Gelly > Affects Versions: 1.4.0, 1.5.0, 1.6.0 > Reporter: Chesnay Schepler > Assignee: vinoyang > Priority: Major > > {code} > // org.apache.flink.graph.library.linkanalysis.PageRank#AdjustScores#open > this.vertexCount = vertexCountIterator.hasNext() ? > vertexCountIterator.next().getValue() : 0; > this.uniformlyDistributedScore = ((1 - dampingFactor) + dampingFactor * > sumOfSinks) / this.vertexCount; > {code} -- This message was sent by Atlassian JIRA (v7.6.3#76005)