Hi, I have tried to use the 'big hammer' before, here are my steps (it is not recommended and you should have your HBase and ZK shut down first):
### shut down ZM and HBase 1) for each ZK node: su // login as root cd $ZOOKEEPER_HOME cp data/myid myid // backup existing myid file to ZooKeeper's home folder rm data/* -Rf rm dadalog/* -Rf mkdir -p data mkdir -p datalog cp myid data/myid // restore the myid backup so no need to recreate myid again 2) for each ZK node: (start ZK ) 3) finally (start HBase) By clearing data and datalog, you should have a very clean ZooKeeper. Hope these help and good luck. Thanks ac On 1 Dec 2012, at 10:55 AM, Kevin O'dell wrote: > Stephen, > > There are a couple ways you can do this. The first is the small hammer > assuming ZK is using /hbase you can log into the ZK from a ZK node using > /usr/lib/zookeeper/bin/zkCli.sh once you are in the shell you can then > execute a rmr /hbase and this will remove all the HBase data except the id > of the ZK node. Please make sure HBase is shut down. > > There is a REALLY big hammer, some may call is a sledge hammer but you > can delete the ZK data dir. Go to each ZK node and from the shell as root > execute a rm -rf /<path to zk data> I believe the default is > /var/lib/zookeeper/version-2. Again this is not recommended and you should > have both HBase and ZK shut down for this. > > On Fri, Nov 30, 2012 at 8:42 PM, Stephen Boesch <[email protected]> wrote: > >> It is my intention to clean the zookeeper info, since getting questionable >> behavior in hbase. >> >> what is the process to view/clear the data (hbase..) in zookeeper? >> >> To view it i tried something like: >> >> java -cp zookeeper.jar:lib/*:conf org.apache.zookeeper.ZooKeeperMain ls / >> hscaler-cn001:2181 >> >> I get an output of >> >> Connecting to localhost:2181 >> log4j:WARN No appenders could be found for logger >> (org.apache.zookeeper.ZooKeeper). >> log4j:WARN Please initialize the log4j system properly. >> >> WATCHER:: >> >> WatchedEvent state:SyncConnected type:None path:null >> [hbase, zookeeper] >> >> >> I"m not sure how to get more specific info (using /hbase for example >> results in same info..) >> >> Also: how to remove all of the hbase related data in zookeeper ? >> >> Thanks! >> > > > > -- > Kevin O'Dell > Customer Operations Engineer, Cloudera
