org.apache.hadoop.hive.ql.lockmgr
Class EmbeddedLockManager
java.lang.Object
org.apache.hadoop.hive.ql.lockmgr.EmbeddedLockManager
- All Implemented Interfaces:
- HiveLockManager
public class EmbeddedLockManager
- extends Object
- implements HiveLockManager
shared lock manager for dedicated hive server. all locks are managed in memory
Method Summary |
void |
close()
|
List<HiveLock> |
getLocks(boolean verifyTablePartitions,
boolean fetchData)
|
List<HiveLock> |
getLocks(boolean verifyTablePartitions,
boolean fetchData,
HiveConf conf)
|
List<HiveLock> |
getLocks(HiveLockObject key,
boolean verifyTablePartitions,
boolean fetchData)
|
List<HiveLock> |
getLocks(HiveLockObject key,
boolean verifyTablePartitions,
boolean fetchData,
HiveConf conf)
|
HiveLock |
lock(HiveLockObject key,
HiveLockMode mode,
boolean keepAlive)
|
HiveLock |
lock(HiveLockObject key,
HiveLockMode mode,
int numRetriesForLock,
int sleepTime)
|
List<HiveLock> |
lock(List<HiveLockObj> objs,
boolean keepAlive)
|
List<HiveLock> |
lock(List<HiveLockObj> objs,
int numRetriesForLock,
int sleepTime)
|
void |
prepareRetry()
|
void |
refresh()
refresh to enable new configurations. |
void |
releaseLocks(List<HiveLock> hiveLocks)
|
void |
releaseLocks(List<HiveLock> hiveLocks,
int numRetriesForUnLock,
int sleepTime)
|
void |
setContext(HiveLockManagerCtx ctx)
|
void |
unlock(HiveLock hiveLock)
|
void |
unlock(HiveLock hiveLock,
int numRetriesForUnLock,
int sleepTime)
|
EmbeddedLockManager
public EmbeddedLockManager()
setContext
public void setContext(HiveLockManagerCtx ctx)
throws LockException
- Specified by:
setContext
in interface HiveLockManager
- Throws:
LockException
lock
public HiveLock lock(HiveLockObject key,
HiveLockMode mode,
boolean keepAlive)
throws LockException
- Specified by:
lock
in interface HiveLockManager
- Parameters:
key
- object to be lockedmode
- mode of the lock (SHARED/EXCLUSIVE)keepAlive
- if the lock needs to be persisted after the statement
- Throws:
LockException
lock
public List<HiveLock> lock(List<HiveLockObj> objs,
boolean keepAlive)
throws LockException
- Specified by:
lock
in interface HiveLockManager
- Throws:
LockException
unlock
public void unlock(HiveLock hiveLock)
throws LockException
- Specified by:
unlock
in interface HiveLockManager
- Throws:
LockException
releaseLocks
public void releaseLocks(List<HiveLock> hiveLocks)
- Specified by:
releaseLocks
in interface HiveLockManager
getLocks
public List<HiveLock> getLocks(boolean verifyTablePartitions,
boolean fetchData)
throws LockException
- Specified by:
getLocks
in interface HiveLockManager
- Throws:
LockException
getLocks
public List<HiveLock> getLocks(HiveLockObject key,
boolean verifyTablePartitions,
boolean fetchData)
throws LockException
- Specified by:
getLocks
in interface HiveLockManager
- Throws:
LockException
prepareRetry
public void prepareRetry()
- Specified by:
prepareRetry
in interface HiveLockManager
refresh
public void refresh()
- Description copied from interface:
HiveLockManager
- refresh to enable new configurations.
- Specified by:
refresh
in interface HiveLockManager
lock
public HiveLock lock(HiveLockObject key,
HiveLockMode mode,
int numRetriesForLock,
int sleepTime)
throws LockException
- Throws:
LockException
lock
public List<HiveLock> lock(List<HiveLockObj> objs,
int numRetriesForLock,
int sleepTime)
throws LockException
- Throws:
LockException
unlock
public void unlock(HiveLock hiveLock,
int numRetriesForUnLock,
int sleepTime)
throws LockException
- Throws:
LockException
releaseLocks
public void releaseLocks(List<HiveLock> hiveLocks,
int numRetriesForUnLock,
int sleepTime)
getLocks
public List<HiveLock> getLocks(boolean verifyTablePartitions,
boolean fetchData,
HiveConf conf)
throws LockException
- Throws:
LockException
getLocks
public List<HiveLock> getLocks(HiveLockObject key,
boolean verifyTablePartitions,
boolean fetchData,
HiveConf conf)
throws LockException
- Throws:
LockException
close
public void close()
- Specified by:
close
in interface HiveLockManager
Copyright © 2014 The Apache Software Foundation. All rights reserved.