haskell-distributed / haskell-distributed/distributed-process
[DPSLN-10] How to stop a master?
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Description
[Imported from JIRA. Reported by Niklas Hambuechen @mail@nh2.me) as DPSLN-10 on 2013-02-13 03:29:04]
I followed the work stealing example frm the Well-Typed blog.
I did not use "terminateAllSlaves", so that I can repeatedly run my master "main" function and get slaves to do multiple rounds of work.
However, I cannot do the same from a single GHCi session.
It looks like "startMaster" can only be called once per GHCi, and successive calls block.
Is that correct? Why is that? How can I "stop" a master, so that I can use "startMaster" from GHCi multiple times?
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reviewing the work stealing example from the Well-Typed blog and the behavior of startMaster, terminateAllSlaves, and GHCi. Reproduce repeated startMaster calls in one GHCi session, then determine whether a master can be stopped and restarted; done means documenting the cause and the supported way to run multiple rounds.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- haskell
- Domain
- distributed-systems
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100