[jira] [Assigned] (GIRAPH-12) Investigate communication improvements
[ https://issues.apache.org/jira/browse/GIRAPH-12?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Jake Mannix reassigned GIRAPH-12: - Assignee: Avery Ching (was: Hyunsik Choi) Investigate communication improvements -- Key: GIRAPH-12 URL: https://issues.apache.org/jira/browse/GIRAPH-12 Project: Giraph Issue Type: Improvement Components: bsp Reporter: Avery Ching Assignee: Avery Ching Priority: Minor Attachments: GIRAPH-12_1.patch Currently every worker will start up a thread to communicate with every other workers. Hadoop RPC is used for communication. For instance if there are 400 workers, each worker will create 400 threads. This ends up using a lot of memory, even with the option -Dmapred.child.java.opts=-Xss64k. It would be good to investigate using frameworks like Netty or custom roll our own to improve this situation. By moving away from Hadoop RPC, we would also make compatibility of different Hadoop versions easier. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Assigned] (GIRAPH-12) Investigate communication improvements
[ https://issues.apache.org/jira/browse/GIRAPH-12?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Jake Mannix reassigned GIRAPH-12: - Assignee: Hyunsik Choi (was: Avery Ching) Sorry, my 4-year old clicked when I was looking at this ticket. Didn't notice that it managed to make an actual assignment, reverting! Investigate communication improvements -- Key: GIRAPH-12 URL: https://issues.apache.org/jira/browse/GIRAPH-12 Project: Giraph Issue Type: Improvement Components: bsp Reporter: Avery Ching Assignee: Hyunsik Choi Priority: Minor Attachments: GIRAPH-12_1.patch Currently every worker will start up a thread to communicate with every other workers. Hadoop RPC is used for communication. For instance if there are 400 workers, each worker will create 400 threads. This ends up using a lot of memory, even with the option -Dmapred.child.java.opts=-Xss64k. It would be good to investigate using frameworks like Netty or custom roll our own to improve this situation. By moving away from Hadoop RPC, we would also make compatibility of different Hadoop versions easier. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira
