Hi, I'm trying to test Read Cache in HDFS on version 2.4.0.
I followed this article without success : http://blog.cloudera.com/blog/2014/08/new-in-cdh-5-1-hdfs-read-caching/
I made this cmds : > hadoop-2.4.0/bin/hdfs cacheadmin -addPool testPool > hadoop-2.4.0/bin/hdfs cacheadmin -addDirective -path /myfile -pool testPool > hadoop2.4.0/bin/hdfs cacheadmin -listPools -stats testPool I can see the directive with "-listDirectives" : [hduser@nc-h04 ~]$ hadoop-2.4.0/bin/hdfs cacheadmin -listDirectives Found 1 entry ID POOL REPL EXPIRY PATH 2 testPool 1 never /user/hive/warehouse/casino.db/magasin BUT the file is never cached. Even if I use this file. I wait 1 day. Any tips on that ? Regards, -- Damien CAROL * tél : +33 (0)4 74 96 88 14 * fax : +33 (0)4 74 96 31 88 * email :[email protected] <mailto:[email protected]> BLITZ BUSINESS SERVICE
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