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Jungtaek Lim commented on STORM-871: ------------------------------------ We can clear design constraint with STORM-871, and it automatically resolves STORM-742 and STORM-758. > Change multilang heartbeat mechanism to multi-threading of subprocess > --------------------------------------------------------------------- > > Key: STORM-871 > URL: https://issues.apache.org/jira/browse/STORM-871 > Project: Apache Storm > Issue Type: Improvement > Reporter: Jungtaek Lim > > Having design constraint of multilang heartbeat, some issues are raised at > the moment. > (https://issues.apache.org/jira/browse/STORM-738 is a kind of reporting) > I'm trying to add workarounds > (https://issues.apache.org/jira/browse/STORM-742 and so on), but if we can > get rid of design constraint it would be really great. > Maybe we can use pid file of subprocess (subprocess write it from sendpid()) > to check subprocess heartbeat from ShellSpout / ShellBolt. > Letting subprocess launch new thread which writes pid file periodically, to > make sure "modified time" of file is periodically up to date. (It is just an > idea, and it should be validated.) -- This message was sent by Atlassian JIRA (v6.3.4#6332)