com.bigdata.jini.start
Class RestartPersistentServices

java.lang.Object
  com.bigdata.jini.start.RestartPersistentServices

All Implemented Interfaces:

Callable<Boolean>

public class RestartPersistentServices
extends Object
implements Callable<Boolean>

Task restarts persistent physical services that should be running on this host but which are not discoverable using jini (not found when we query for their ServiceID) and apparently disconnected from zookeeper (their ephemeral znode is not found in the BigdataZooDefs.MASTER_ELECTION container). Service restarts are logged. An error is logged if a service can not be restarted. It is an error if the ZooKeeper client is not connected. It is an error if no ServiceRegistrars are joined.

Version:

$Id$

Author:

Bryan Thompson

Field Summary

protected JiniFederation	fed
protected static org.apache.log4j.Logger	log

Constructor Summary

RestartPersistentServices(JiniFederation fed, MonitorCreatePhysicalServiceLocksTask monitorCreatePhysicalServiceLocksTask)

Method Summary

Boolean

call() Runs until all services are running.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

log

protected static final org.apache.log4j.Logger log

fed

protected final JiniFederation fed

Constructor Detail

RestartPersistentServices

public RestartPersistentServices(JiniFederation fed,
                                 MonitorCreatePhysicalServiceLocksTask monitorCreatePhysicalServiceLocksTask)

Method Detail

call

public Boolean call()
             throws Exception

Runs until all services are running.

Specified by:

call in interface Callable<Boolean>

Throws:

Exception