public void renewLease(final String leaseName) throws LeaseException {
    if (this.stopRequested) {
      return;
    }
    Lease lease = leases.get(leaseName);

    if (lease == null) {
      throw new LeaseException("lease '" + leaseName + "' does not exist or has already expired");
    }
    lease.resetExpirationTime();
  }
Renew a lease
@param leaseName name of the lease
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/LeaseManager.java