Job Schedule in Mongodb - mongodb-user

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Message from discussion Job Schedule in Mongodb
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Date: Thu, 4 Oct 2012 09:58:47 +0100
Message-ID: <CALKyTE77e=fxQ2efcNPFkaOu_9OA4cFK2T2xdNr3pVLqu15...@mail.gmail.com>
Subject: Re: [mongodb-user] Re: Job Schedule in Mongodb
From: Sam Millman <sam.mill...@gmail.com>
To: mongodb-user@googlegroups.com
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Server-side execution will lock yes.

I am unsure why you need to run a file in the mongo client application from
your own server side application.

Why can you not run this from your application directly?

On 4 October 2012 03:45, Tom Vo <tom...@nexcel.vn> wrote:

> Hi William
> 1) As your guide, I should not use Stored JavaScript Procedures on
> MongoDB. I have to execute JavaScript file on Mongo Client.
>
> 2) You said that the JavaScript engine is single-threaded. That's
> mean MongoDB will be write locked when this script have not been finished.
> Could you give me document introduce about them?
>
> http://www.mongodb.org/display/DOCS/Server-side+Code+Execution
>
> Thank you for your reply and kindly supports.
>
> On Wed, Oct 3, 2012 at 11:58 PM, William Zola <william.z...@10gen.com>wrote:
>
>>
>>
>> Hi Tom!
>>
>> 1) You should avoid using MongoDB stored JavaScript procedures if you
>> possibly can.  The JavaScript engine is single-threaded.  If you run
>> critical processes using the JavaScript stored procedures you are likely to
>> have performance problems.
>>
>> 2) MongoDB currently does not have any ability to schedule any tasks to
>> run.  There is an existing SERVER ticket with a request to add this
>> functionality.  You can follow this ticket and vote it up here:
>> https://jira.mongodb.org/browse/SERVER-2573
>>
>> 3) If you want to schedule a task to run in MongoDB, the best way to do
>> this is with the operating system scheduler.  For example, 'cron' on
>> Unix/Linux.
>>
>> Have a great day!
>>
>>  -William
>>
>>
>> On Tuesday, October 2, 2012 7:43:52 PM UTC-7, Tom Vo wrote:
>>>
>>> Dear all
>>> Mongodb have support JS function like store procedure, function in SQL
>>> Server. Does Mongodb have to support Job Schedule? How do you do on it?
>>>
>>> Thanks and Regards.
>>>
>>  --
>> You received this message because you are subscribed to the Google
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>> To post to this group, send email to mongodb-user@googlegroups.com
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>> See also the IRC channel -- freenode.net#mongodb
>>
>
>
>
> --
>
> Thanks and Best Regards
>
> -------------------------------------------------------------------------------------------------------------
> *Tom Vo*
>
> --
> You received this message because you are subscribed to the Google
> Groups "mongodb-user" group.
> To post to this group, send email to mongodb-user@googlegroups.com
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> See also the IRC channel -- freenode.net#mongodb
>

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Server-side execution will lock yes.<br><br>I am unsure why you need to run=
 a file in the mongo client application from your own server side applicati=
on.<br><br>Why can you not run this from your application directly?<br><br>
<div class=3D"gmail_quote">On 4 October 2012 03:45, Tom Vo <span dir=3D"ltr=
">&lt;<a href=3D"mailto:tom...@nexcel.vn" target=3D"_blank">tom...@nexcel.v=
n</a>&gt;</span> wrote:<br><blockquote class=3D"gmail_quote" style=3D"margi=
n:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hi William<div>1) As your guide, I should not use Stored JavaScript Procedu=
res on MongoDB. I have to execute JavaScript file on Mongo Client.=A0</div>=
<div><br></div><div>2) You said that the JavaScript engine is single-thread=
ed. That&#39;s mean=A0MongoDB=A0will be write locked when this script have =
not been finished. Could you give me document introduce about them?=A0</div=
>

<div><br></div><div><a href=3D"http://www.mongodb.org/display/DOCS/Server-s=
ide+Code+Execution" target=3D"_blank">http://www.mongodb.org/display/DOCS/S=
erver-side+Code+Execution</a><br><br></div><div>Thank you for your reply an=
d kindly supports.</div>

<div><div><div class=3D"h5"><br><div class=3D"gmail_quote">On Wed, Oct 3, 2=
012 at 11:58 PM, William Zola <span dir=3D"ltr">&lt;<a href=3D"mailto:willi=
am.z...@10gen.com" target=3D"_blank">william.z...@10gen.com</a>&gt;</span> =
wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex">
<br><br>Hi Tom!<br><br>1) You should avoid using MongoDB stored JavaScript =
procedures if you possibly can.=A0 The JavaScript engine is single-threaded=
.=A0 If you run critical processes using the JavaScript stored procedures y=
ou are likely to have performance problems.<br>

<br>2) MongoDB currently does not have any ability to schedule any tasks to=
 run.=A0 There is an existing SERVER ticket with a request to add this func=
tionality.=A0 You can follow this ticket and vote it up here: <a href=3D"ht=
tps://jira.mongodb.org/browse/SERVER-2573" target=3D"_blank">https://jira.m=
ongodb.org/browse/SERVER-2573</a><br>

<br>3) If you want to schedule a task to run in MongoDB, the best way to do=
 this is with the operating system scheduler.=A0 For example, &#39;cron&#39=
; on Unix/Linux.<br><br>Have a great day!<span><font color=3D"#888888"><br>

<br>=A0-William <br></font></span><div><div><br><br>On Tuesday, October 2, =
2012 7:43:52 PM UTC-7, Tom Vo wrote:<blockquote class=3D"gmail_quote" style=
=3D"margin:0;margin-left:0.8ex;border-left:1px #ccc solid;padding-left:1ex"=
>

Dear all<div>Mongodb have support JS function like store procedure, functio=
n in SQL Server. Does Mongodb have to support Job Schedule? How do you do o=
n it?</div><div><br></div><div>Thanks and Regards.</div></blockquote>

<p></p>

-- <br>
You received this message because you are subscribed to the Google<br>
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=3D"_blank">freenode.net#mongodb</a><br>
</div></div></blockquote></div><br><br clear=3D"all"><div><br></div></div><=
/div><span class=3D"HOEnZb"><font color=3D"#888888">-- <br><br>Thanks and B=
est Regards<br>------------------------------------------------------------=
-------------------------------------------------<br>
<b>Tom Vo</b><br>

</font></span></div><div class=3D"HOEnZb"><div class=3D"h5">

<p></p>

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</div></div></blockquote></div><br>

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