[jira] [Created] (FLINK-8403) Flink Gelly examples hanging without returning result

["flora karniav (JIRA)" <ji...@apache.org>]

flora karniav created FLINK-8403:
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             Summary: Flink Gelly examples hanging without returning result
                 Key: FLINK-8403
                 URL: https://issues.apache.org/jira/browse/FLINK-8403
             Project: Flink
          Issue Type: Bug
          Components: Gelly
    Affects Versions: 1.3.2
         Environment: CentOS Linux release 7.3.1611
            Reporter: flora karniav


Hello, I am currently running and measuring Flink Gelly examples (Connected components and Pagerank algorithms) with different SNAP datasets. When running with the Twitter dataset for example (https://snap.stanford.edu/data/egonets-Twitter.html) which has 81,306 vertices everything executes and finishes OK and I get the reported job runtime. On the other hand,  executions with datasets having a bigger number of vertices, e.g. https://snap.stanford.edu/data/com-Youtube.html with 1,134,890 vertices, hang with no result and reported time, while at the same time I get "Job execution switched to status FINISHED."

I thought that this could be a memory issue so I reached 125GB of RAM assigned to my taskmanagers (and jobmanager), but still no luck. 

The exact command I am running is:

./bin/flink run examples/gelly/flink-gelly-examples_*.jar --algorithm PageRank --directed false  --input_filename hdfs://sith0:9000/user/xx.txt --input CSV --type integer --input_field_delimiter $' ' --output print




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