[infinispan-dev] Map/Reduce Tasks and classpath

[Ray Tsang]

Tristan,

After the quick groovy poc, I discovered the design/plan doc for m/r
over hotrod that mentioned  stored procedure approach.

Where will the script be stored and how will the user store it?
(Perhaps stored also in a cache?)

I just implemented something w/ jsr223 that might be generic enough
for hooking into the script store.  :)

On Jan 28, 2013, at 5:23, Manik Surtani <msurtani at redhat.com> wrote:

> You guys should collaborate on this.  :)
>
> On 28 Jan 2013, at 13:02, Tristan Tarrant <ttarrant at redhat.com> wrote:
>
>> On 01/26/2013 09:32 PM, Ray Tsang wrote:
>>> I just wrote something quick that uses groovy scripts.  my hope is to
>>> be able to execute any arbitrary scripted mapper/reducer w/o needing
>>> to, say, redeploy/restart the node/server.
>>>
>>> The code is here:
>>> https://github.com/saturnism/infinispan/tree/groovy-mr/groovy
>> Ray, to avoid duplicate effort, I'm working on implementing "stored
>> scripts" for Infinispan based on ScriptEngine.
>> Scripts would be stored (compiled if possible) in a dedicated replicated
>> cache. The scripts can then be referred to by name in dist-exec and
>> map-reduce invocations. It will then be possible to invoke these scripts
>> both locally and remotely (over HotRod and REST).
>>
>> Some Jiras:
>>
>> https://issues.jboss.org/browse/ISPN-1094
>> https://issues.jboss.org/browse/ISPN-1192
>>
>> Tristan
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>
> --
> Manik Surtani
> manik at jboss.org
> twitter.com/maniksurtani
>
> Platform Architect, JBoss Data Grid
> http://red.ht/data-grid
>
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