Jungtaek Lim created STORM-1341:
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Summary: Better to have multilang subprocess timeout, not relying
on supervisor worker timeout
Key: STORM-1341
URL: https://issues.apache.org/jira/browse/STORM-1341
Project: Apache Storm
Issue Type: Improvement
Components: storm-multilang
Reporter: Jungtaek Lim
Priority: Minor
Currently, ShellBolt determines that subprocess is hang if there're no message
from subprocess within SUPERVISOR_WORKER_TIMEOUT_SECS.
Since ShellBolt treats all kinds of message to heartbeat (STORM-742), we get
rid of heartbeat issue that heartbeat tuple cannot processed in time because
too many other BoltMsgs waiting.
But it doesn't cover two scenario,
- STORM-758: Subprocess doesn't send anything - emit, ack, fail - so ShellBolt
has to rely on heartbeat tuple. It is valid for non-ACK mode.
- Each (or some kind of) tuple takes very long time to process. For now it
should be shorter than SUPERVISOR_WORKER_TIMEOUT_SECS.
It could be better to have multilang subprocess timeout for clarity.
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