Hello Reena,

No there isn't a programmatic way to invoke the block scanner. Note
though that the property to control its period is DN-local, so you can
change it on DNs and do a DN rolling restart to make it take effect
without requiring a HDFS downtime.

On Fri, Mar 28, 2014 at 3:07 PM, reena upadhyay <[EMAIL PROTECTED]> wrote:

Harsh J
NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB