Per Steffensen skrev:
Observe about 50% iowait before even starting clients - that is when
there is actually no load from clients on the system. So only
"internal" stuff in HBase/HDFS can cause this - HBase compaction? HDFS?
Ahh ok, that was only for half a minute after restart. So basically dow
Observe about 50% iowait before even starting clients - that is when
there is actually no load from clients on the system. So only "internal"
stuff in HBase/HDFS can cause this - HBase compaction? HDFS?
Regards, Per Steffensen
Per Steffensen skrev:
Hi
We have a system a.o. with a HBase clust
Hi
We have a system a.o. with a HBase cluster and a HDFS cluster (primarily
for HBase persistence). Depending on the environment we have between 3
and 8 machine running a HBase RegionServer and a HDFS DataNode. OS is
Ubuntu 10.04. On those machine we see very high iowait and very little
"real
