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From Nathan Marz <>
Subject Re: Storm Fault Tolerance - On/Off Switch
Date Fri, 16 Oct 2015 17:40:20 GMT
Hi Amanda,

You can turn off the acking feature of Storm (which guarantees every tuple
will be processed) by setting topology.acker.executors to 0 in the config.
You can completely control how Nimbus assigns tasks by implementing your
own scheduler using the IScheduler interface.


On Tue, Oct 13, 2015 at 5:11 PM, Amanda C <> wrote:

> Hello!
> I am a National Science Foundation Research Experiences for Undergraduates
> (NSF REU) student. I conduct research for the Distributed Systems Group at
> Colorado State University. My current research involves fault tolerance in
> Storm.
> My advisor has tasked me with developing a fault tolerance scheme to run
> on top of Storm and compare it with the current scheme during stateless
> processing.
> Unfortunately, I have not been able to find any information as to how to
> "turn off" the fault tolerance features of Storm. On the storm
> documentation page, it states that Nimbus will move workers and tasks away
> for failing nodes or machines, is there any way to turn this off so I can
> implement my own scheme?
> Thanks for your time and help!
> ~ Amanda Carbonari

Twitter: @nathanmarz

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