pmap is still semi-lazy, and there's little point to derefing futures in
parallel.
You'd be better off with:
(doseq [r results]
(deref r))
Or:
(dorun (map deref results))
- James
On 18 June 2015 at 12:57, Haim Ashkenazi <haim.ashken...@gmail.com> wrote:
> Thanks Luc,
>
> This was a simplification if what I really have :) I actually need the
> result. The actual code was something like:
>
> (let [results (for [host hosts]
> (future (remote-exec commands host)))]
> (pmap deref results))
>
> where remote-exec runs commands via ssh-clj.
>
> Is there another way to verify that the futures executed?
>
> Thanks.
>
>
>
>
> On Thu, Jun 18, 2015 at 11:06 AM, Luc Prefontaine <
> lprefonta...@softaddicts.ca> wrote:
>
>> Btwy,
>>
>> For is not a loop as in imperative languages. It returns a lazy sequence.
>>
>> Luc P.
>>
>> Sent from my iPhone
>>
>> On Jun 18, 2015, at 07:51, Haim Ashkenazi <haim.ashken...@gmail.com>
>> wrote:
>>
>> Hi,
>>
>> I'm trying boot scripting capabilities so I have the following file:
>>
>> #!/usr/bin/env boot
>> (set-env!
>> :dependencies '[[org.clojure/clojure "1.6.0"]])
>>
>> (defn -main
>> []
>> (println "before")
>> (for [s ["one" "two" "three"]]
>> (do
>> (spit "output" s :append true)
>> (println s)))
>> (println "after"))
>>
>>
>> When running this script form the command line all the stuff inside the
>> *for* loop is doesn't seem to run:
>>
>> ✓ src ➤ ./testboot
>> before
>> after
>>
>> ... and there's no "out[put" file. Inside a REPL it runs without a
>> problem. Am I missing something?
>>
>> Thanks in advance
>>
>> --
>> Haim
>>
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>
>
>
> --
> Haim
>
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