Re: memory size for caching RDD

2014-09-27 Thread Tom Hubregtsen
Use unpersist(), even when not persisted before. -- View this message in context: http://apache-spark-developers-list.1001551.n3.nabble.com/memory-size-for-caching-RDD-tp8256p8579.html Sent from the Apache Spark Developers List mailing list archive at Nabble.com.

Re: memory size for caching RDD

2014-09-04 Thread 牛兆捷
But is it possible to make t resizable? When we don't have many RDD to cache, we can give some memory to others. 2014-09-04 13:45 GMT+08:00 Patrick Wendell pwend...@gmail.com: Changing this is not supported, it si immutable similar to other spark configuration settings. On Wed, Sep 3, 2014

RE: memory size for caching RDD

2014-09-04 Thread Liu, Raymond
limit. Best Regards, Raymond Liu From: 牛兆捷 [mailto:nzjem...@gmail.com] Sent: Thursday, September 04, 2014 2:27 PM To: Patrick Wendell Cc: u...@spark.apache.org; dev@spark.apache.org Subject: Re: memory size for caching RDD But is it possible to make t resizable? When we don't have many RDD to cache

Re: memory size for caching RDD

2014-09-04 Thread 牛兆捷
Thanks raymond. I duplicated the question. Please see the reply here. [?] 2014-09-04 14:27 GMT+08:00 牛兆捷 nzjem...@gmail.com: But is it possible to make t resizable? When we don't have many RDD to cache, we can give some memory to others. 2014-09-04 13:45 GMT+08:00 Patrick Wendell

RE: memory size for caching RDD

2014-09-04 Thread Liu, Raymond
Regards, Raymond Liu From: 牛兆捷 [mailto:nzjem...@gmail.com] Sent: Thursday, September 04, 2014 2:57 PM To: Liu, Raymond Cc: Patrick Wendell; u...@spark.apache.org; dev@spark.apache.org Subject: Re: memory size for caching RDD Oh I see. I want to implement something like this: sometimes I need

Re: memory size for caching RDD

2014-09-04 Thread 牛兆捷
...@spark.apache.org; dev@spark.apache.org Subject: Re: memory size for caching RDD Oh I see. I want to implement something like this: sometimes I need to release some memory for other usage even when they are occupied by some RDDs (can be recomputed with the help of lineage when they are needed

Re: memory size for caching RDD

2014-09-03 Thread Patrick Wendell
Changing this is not supported, it si immutable similar to other spark configuration settings. On Wed, Sep 3, 2014 at 8:13 PM, 牛兆捷 nzjem...@gmail.com wrote: Dear all: Spark uses memory to cache RDD and the memory size is specified by spark.storage.memoryFraction. One the Executor starts,