Re: How to unpersist a DStream in Spark Streaming

Do we have any guarantees on the maximum duration? I've seen RDDs kept around for 7-10 minutes on batches of 20 secs and checkpoint of 100 secs. No windows, just updateStateByKey. t's not a memory issue but on checkpoint recovery it goes back to Kafka for 10 minutes of data, any idea why?

Re: How to unpersist a DStream in Spark Streaming

Its just in the same thread for a particular RDD, I need to uncache it every 2 minutes to clear out the data that is present in a Map inside that. On Wed, Nov 4, 2015 at 11:54 PM, Saisai Shao wrote: > Hi Swetha, > > Would you mind elaborating your usage scenario of

Re: How to unpersist a DStream in Spark Streaming

Spark streaming automatically takes care of unpersisting any RDDs generated by DStream. You can set the StreamingContext.remember() to set the minimum persistence duration. Any persisted RDD older than that will be automatically unpersisted On Thu, Nov 5, 2015 at 9:12 AM, swetha kasireddy

How to unpersist a DStream in Spark Streaming

Hi, How to unpersist a DStream in Spark Streaming? I know that we can persist using dStream.persist() or dStream.cache. But, I don't see any method to unPersist. Thanks, Swetha -- View this message in context:

Re: How to unpersist a DStream in Spark Streaming

Hi Swetha, Would you mind elaborating your usage scenario of DStream unpersisting? >From my understanding: 1. Spark Streaming will automatically unpersist outdated data (you already mentioned about the configurations). 2. If streaming job is started, I think you may lose the control of the job,

Re: How to unpersist a DStream in Spark Streaming

Hi, DStream->Discretized Streams are made up of multiple RDDs You can unpersist each RDD by accessing the individual RDD's using dstreamrdd.foreachRDD { rdd.unpersist(). } -- View this message in context:

Re: How to unpersist a DStream in Spark Streaming

Other than setting the following. sparkConf.set("spark.streaming.unpersist", "true") sparkConf.set("spark.cleaner.ttl", "7200s") On Wed, Nov 4, 2015 at 5:03 PM, swetha wrote: > Hi, > > How to unpersist a DStream in Spark Streaming? I know that we can persist > using