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Re: Do we config our hadoop right? JBOD vs RAID

Contributor

Great! will take note of that, how about in Spark, should I set a buffer on SSDs for DISK persist?

Re: Do we config our hadoop right? JBOD vs RAID

Not sure about Spark, but IMO you can do that when you configure HDFS, put SSD nodes in another Ambari config group and set the space not to be used by HDFS.