// exceptions
onlineTablets.remove(extent);
try {
TServerInstance instance = new TServerInstance(clientAddress, getLock().getSessionId());
TabletLocationState tls = new TabletLocationState(extent, null, instance, null, null, false);
log.debug("Unassigning " + tls);
TabletStateStore.unassign(tls);
} catch (DistributedStoreException ex) {
log.warn("Unable to update storage", ex);
} catch (KeeperException e) {