You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@giraph.apache.org by Avery Ching <av...@gmail.com> on 2011/11/16 23:37:46 UTC
Review Request: GIRAPH-91 - Large-memory improvements (Memory reduced vertex
implementation, fast failure, added settings)
-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/2868/
-----------------------------------------------------------
Review request for giraph.
Summary
-------
There general changes should support larger heap sizes (i.e. >20G)
- Added new EdgeListVertex that stores its edges in a compact pair of lists instead of Vertex's HashMap.
- Added unittests TestEdgeArrayVertex to test EdgeListVertex.
- Augmented PageRankBenchmark to choose between EdgeListArrayVertex or Vertex (to try it out).
- Added failure cleanup for failed workers to quickly alert the master that they are dead by deleting its health ephemeral znode. This allows us to set higher ZooKeeper timeouts to deal with GC pauses and the like. In a quick test of 3 nodes, I saw failure in 43 seconds instead of 1m 52 sec.
- Added a context.progress() to flushing to not kill jobs with long timeouts (GC or lots of messages).
This addresses bug GIRAPH-91.
https://issues.apache.org/jira/browse/GIRAPH-91
Diffs
-----
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/benchmark/PageRankBenchmark.java 1202898
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/bsp/CentralizedServiceWorker.java 1202898
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/comm/BasicRPCCommunications.java 1202898
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/graph/BspServiceWorker.java 1202898
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/graph/EdgeListVertex.java PRE-CREATION
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/graph/GiraphJob.java 1202898
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/graph/GraphMapper.java 1202898
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/test/java/org/apache/giraph/TestJsonBase64Format.java 1202898
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/test/java/org/apache/giraph/graph/TestEdgeListVertex.java PRE-CREATION
Diff: https://reviews.apache.org/r/2868/diff
Testing
-------
Local unittests, PageRankBenchmark on multiple machines with >20GB heaps.
Thanks,
Avery