Re: init / shutdown for complex map job?
Something like?
val a = myRDD.mapPartitions(p = {
//Do the init
//Perform some operations
//Shut it down?
})
Thanks
Best Regards
On Sun, Dec 28, 2014 at 1:53 AM, Kevin Burton bur...@spinn3r.com wrote:
I have a job where I want to map over all data in a cassandra database.
I’m then selectively sending things to my own external system (ActiveMQ)
if the item matches criteria.
The problem is that I need to do some init and shutdown. Basically on
init I need to create ActiveMQ connections and on shutdown I need to close
them or daemon threads will be left running.
What’s the best way to accomplish this. I could find it after I RTFMd…(but
perhaps I missed it)
--
Founder/CEO Spinn3r.com
Location: *San Francisco, CA*
blog: http://burtonator.wordpress.com
… or check out my Google+ profile
https://plus.google.com/102718274791889610666/posts
http://spinn3r.com
Re: init / shutdown for complex map job?
You can't quite do cleanup in mapPartitions in that way. Here is a bit more
explanation (farther down):
http://blog.cloudera.com/blog/2014/09/how-to-translate-from-mapreduce-to-apache-spark/
On Dec 28, 2014 8:18 AM, Akhil Das ak...@sigmoidanalytics.com wrote:
Something like?
val a = myRDD.mapPartitions(p = {
//Do the init
//Perform some operations
//Shut it down?
})
Thanks
Best Regards
On Sun, Dec 28, 2014 at 1:53 AM, Kevin Burton bur...@spinn3r.com wrote:
I have a job where I want to map over all data in a cassandra database.
I’m then selectively sending things to my own external system (ActiveMQ)
if the item matches criteria.
The problem is that I need to do some init and shutdown. Basically on
init I need to create ActiveMQ connections and on shutdown I need to close
them or daemon threads will be left running.
What’s the best way to accomplish this. I could find it after I
RTFMd…(but perhaps I missed it)
--
Founder/CEO Spinn3r.com
Location: *San Francisco, CA*
blog: http://burtonator.wordpress.com
… or check out my Google+ profile
https://plus.google.com/102718274791889610666/posts
http://spinn3r.com
Re: init / shutdown for complex map job?
A follow-up to the blog cited below was hinted at, per But Wait,
There's More ... To keep this post brief, the remainder will be left to
a follow-up post.
Is this follow-up pending? Is it sort of pending? Did the follow-up
happen, but I just couldn't find it on the web?
Regards, Ray.
On Sun, 28 Dec 2014 08:54:13 +
Sean Owen so...@cloudera.com wrote:
You can't quite do cleanup in mapPartitions in that way. Here is a
bit more explanation (farther down):
http://blog.cloudera.com/blog/2014/09/how-to-translate-from-mapreduce-to-apache-spark/
On Dec 28, 2014 8:18 AM, Akhil Das ak...@sigmoidanalytics.com
wrote:
Something like?
val a = myRDD.mapPartitions(p = {
//Do the init
//Perform some operations
//Shut it down?
})
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Re: init / shutdown for complex map job?
(Still pending, but believe it's in progress and being written by a colleague here.) On Sun, Dec 28, 2014 at 2:41 PM, Ray Melton rtmel...@gmail.com wrote: A follow-up to the blog cited below was hinted at, per But Wait, There's More ... To keep this post brief, the remainder will be left to a follow-up post. Is this follow-up pending? Is it sort of pending? Did the follow-up happen, but I just couldn't find it on the web? Regards, Ray. - To unsubscribe, e-mail: user-unsubscr...@spark.apache.org For additional commands, e-mail: user-h...@spark.apache.org
init / shutdown for complex map job?
I have a job where I want to map over all data in a cassandra database. I’m then selectively sending things to my own external system (ActiveMQ) if the item matches criteria. The problem is that I need to do some init and shutdown. Basically on init I need to create ActiveMQ connections and on shutdown I need to close them or daemon threads will be left running. What’s the best way to accomplish this. I could find it after I RTFMd…(but perhaps I missed it) -- Founder/CEO Spinn3r.com Location: *San Francisco, CA* blog: http://burtonator.wordpress.com … or check out my Google+ profile https://plus.google.com/102718274791889610666/posts http://spinn3r.com
