Hi, I would like to know if there is a way to monitor HBase cluster activity, in order to check if all region servers works evenly when I try to write bulk data from my java client application. Is there a simple way to see that all region servers receive requests and process data "evenly" ? Is there a way to check how/where data is stored in HDFS by each region server/data node ? HBase documentation (http://hbase.apache.org/0.94/book/trouble.namenode.html#trouble.namenode.disk) describes HDFS directory structure and I figured out that I should find one directory per region per table in HDFS. Unfortunately, I created my table with 11 pre-splitting regions (because my cluster has 11 region servers/data nodes), but when I check HDFS content after my writting operation, I can only see two sub-folders : Example for my RAW_DATA_PARAMS_VALUES table in TEST namespace : $ hdfs dfs -ls /apps/hbase/data/TEST/RAW_DATA_PARAMS_VALUES/ /Found 4 items drwx------ - hbase hdfs 0 2016-11-24 17:44 /apps/hbase/data/TEST/RAW_DATA_PARAMS_VALUES/.tabledesc drwx------ - hbase hdfs 0 2016-11-24 17:44 /apps/hbase/data/TEST/RAW_DATA_PARAMS_VALUES/.tmp drwx------ - hbase hdfs 0 2016-11-24 17:46 /apps/hbase/data/TEST/RAW_DATA_PARAMS_VALUES/0142431be109d6c17a45335a8d7bde7a drwx------ - hbase hdfs 0 2016-11-24 17:46 /apps/hbase/data/TEST/RAW_DATA_PARAMS_VALUES/6dff378a2e1c351837f687caa0b642c3 / Thanks for any help !
Regards Sebastien -- View this message in context: http://apache-hbase.679495.n3.nabble.com/Region-server-monitoring-data-storage-tp4084683.html Sent from the HBase User mailing list archive at Nabble.com.
