Is your cluster fully upgraded to CDH5 ?
Thanks, Anurag Tangri > On Jan 29, 2015, at 6:33 AM, Juraj jiv <[email protected]> wrote: > > Hello, > I noticed our CDH5 cluster is not balanced and balancer role is missing. So i > added via cloudera manager new balancer role and clicked on rebalance in hdfs > menu. After some time task ended as failed. > > In logs i can balancer started but when it want to start moving blocks all > failed with message like: > 2015-01-29 15:26:55,131 WARN [pool-4-thread-4] balancer.Balancer > (Balancer.java:dispatch(362)) - Failed to move blk_1095182943_21451284 with > size=43 from 10.xx.xx.14:50010 to 10.xx.xx.12:50010 through > 10.xx.xx.14:50010: Premature EOF: no length prefix available > Any idea what is the problem about? Cluster is working fine so i have no > clue. Maybe i need restart HDFS service first? > > Thanks, > JV
