Examples of org.apache.hadoop.hbase.master.AssignmentManager.assign()

Class org.apache.hadoop.hbase.master.AssignmentManager

Examples of org.apache.hadoop.hbase.master.AssignmentManager.assign()

org.apache.hadoop.hbase.master.AssignmentManager.assign()
Assigns the specified region.
If a RegionPlan is available with a valid destination then it will be used to determine what server region is assigned to. If no RegionPlan is available, region will be assigned to a random available server.
Updates the RegionState and sends the OPEN RPC.
This will only succeed if the region is in transition and in a CLOSED or OFFLINE state or not in transition (in-memory not zk), and of course, the chosen server is up and running (It may have just crashed!). If the in-memory checks pass, the zk node is forced to OFFLINE before assigning. @param region server to be assigned @param setOfflineInZK whether ZK node should be created/transitioned to anOFFLINE state before assigning the region


    zkWatcher.registerListenerFirst(am);


    addServerToDrainedList(SERVERNAME_A, onlineServers, serverManager);


    am.assign(REGIONINFO, true);


    setRegionOpenedOnZK(zkWatcher, SERVERNAME_A, REGIONINFO);
    setRegionOpenedOnZK(zkWatcher, SERVERNAME_B, REGIONINFO);


    am.waitForAssignment(REGIONINFO);

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    for (ServerName drained : drainedServers) {
      addServerToDrainedList(drained, onlineServers, serverManager);
    }
    
    am.assign(bulk);


    Map<String, RegionState> regionsInTransition = am.getRegionStates().getRegionsInTransition();
    for (Entry<String, RegionState> entry : regionsInTransition.entrySet()) {
      setRegionOpenedOnZK(zkWatcher, entry.getValue().getServerName(), 
        entry.getValue().getRegion());

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          EnvironmentEdgeManager.currentTimeMillis() - start > 60000);
        Thread.sleep(500);
      }


      // We should not be able to assign it again
      am.assign(hri, true, true);
      assertFalse("Split region can't be assigned",
        regionStates.isRegionInTransition(hri));
      assertTrue(regionStates.isRegionInState(hri, State.SPLIT));


      // We should not be able to unassign it either

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          }
        }
      }


      try {
        am.assign(toAssignRegions);
      } catch (InterruptedException ie) {
        LOG.error("Caught " + ie + " during round-robin assignment");
        throw (InterruptedIOException)new InterruptedIOException().initCause(ie);
      }

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          }
        }
      }


      try {
        am.assign(toAssignRegions);
      } catch (InterruptedException ie) {
        LOG.error("Caught " + ie + " during round-robin assignment");
        throw (InterruptedIOException)new InterruptedIOException().initCause(ie);
      } catch (IOException ioe) {
        LOG.info("Caught " + ioe + " during region assignment, will retry");

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