LockStats (Oracle - Berkeley DB Java API)

java.lang.Object
- com.sleepycat.db.LockStats

public class LockStats
extends java.lang.Object

Lock statistics for a database environment.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`int`	`getCurMaxId()`	The current maximum unused locker ID.
`int`	`getHashLen()`	Maximum length of a lock hash bucket.
`int`	`getId()`	The last allocated locker ID.
`int`	`getInitlockers()`	The initial number of lockers allocated in lock table.
`int`	`getInitlocks()`	The initial number of locks allocated in the lock table.
`int`	`getInitobjects()`	The initial number of lock objects allocated in lock table.
`int`	`getLockers()`	The current number of lockers allocated in lock table.
`long`	`getLockersNowait()`	The number of requests to allocate or deallocate a locker for which the thread of control did not wait.
`long`	`getLockersWait()`	The number of requests to allocate or deallocate a locker for which the thread of control waited.
`long`	`getLockNowait()`	The number of lock requests not immediately available due to conflicts, for which the thread of control did not wait.
`int`	`getLocks()`	The current number of locks allocated in lock table.
`long`	`getLocksteals()`	The maximum number of locks stolen by an empty partition.
`int`	`getLockTimeout()`	Lock timeout value.
`long`	`getLockWait()`	The number of lock requests not immediately available due to conflicts, for which the thread of control waited.
`int`	`getMaxHlocks()`	The maximum number of locks in any hash bucket at any one time.
`int`	`getMaxHobjects()`	The maximum number of objects in any hash bucket at any one time.
`int`	`getMaxLockers()`	The maximum number of lockers possible.
`int`	`getMaxLocks()`	The maximum number of locks possible.
`long`	`getMaxLsteals()`	The maximum number of lock steals for any one partition.
`int`	`getMaxNlockers()`	The maximum number of lockers at any one time.
`int`	`getMaxNlocks()`	The maximum number of locks at any one time.
`int`	`getMaxNobjects()`	The maximum number of lock objects at any one time.
`int`	`getMaxObjects()`	The maximum number of lock objects possible.
`long`	`getMaxOsteals()`	The maximum number of object steals for any one partition.
`int`	`getNobjects()`	The number of current lock objects.
`long`	`getNumDeadlocks()`	The number of deadlocks.
`long`	`getNumDowngrade()`	The total number of locks downgraded.
`int`	`getNumLockers()`	The number of current lockers.
`long`	`getNumLockersHit()`	The number of hits in the thread locker cache.
`long`	`getNumLockersReused()`	Total number of lockers reused.
`int`	`getNumLocks()`	The number of current locks.
`long`	`getNumLockTimeouts()`	The number of lock requests that have timed out.
`int`	`getNumModes()`	The number of lock modes.
`long`	`getNumReleases()`	The total number of locks released.
`long`	`getNumRequests()`	The total number of locks requested.
`long`	`getNumTxnTimeouts()`	The number of transactions that have timed out.
`long`	`getNumUpgrade()`	The total number of locks upgraded.
`int`	`getObjects()`	The current number of lock objects allocated in lock table.
`long`	`getObjectsteals()`	The maximum number of objects stolen by an empty partition.
`long`	`getObjsNowait()`	The number of requests to allocate or deallocate an object for which the thread of control did not wait.
`long`	`getObjsWait()`	The number of requests to allocate or deallocate an object for which the thread of control waited.
`int`	`getPartitions()`	The number of lock table partitions.
`long`	`getPartMaxNowait()`	The number of times that a thread of control was able to obtain any one lock partition mutex without waiting.
`long`	`getPartMaxWait()`	The maximum number of times that a thread of control was forced to wait before obtaining any one lock partition mutex.
`long`	`getPartNowait()`	The number of times that a thread of control was able to obtain a lock partition mutex without waiting.
`long`	`getPartWait()`	The number of times that a thread of control was forced to wait before obtaining a lock partition mutex.
`long`	`getRegionNowait()`	The number of times that a thread of control was able to obtain the lock region mutex without waiting.
`long`	`getRegionWait()`	The number of times that a thread of control was forced to wait before obtaining the lock region mutex.
`long`	`getRegSize()`	The size of the lock region.
`int`	`getTableSize()`	The size of object hash table.
`int`	`getTxnTimeout()`	Transaction timeout value.
`java.lang.String`	`toString()`	For convenience, the LockStats class has a toString method that lists all the data fields.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Method Detail
  - getId
```
public int getId()
```
    The last allocated locker ID.
    
    Returns:
    
    the last allocated locker ID
  - getCurMaxId
```
public int getCurMaxId()
```
    The current maximum unused locker ID.
    
    Returns:
    
    the current maximum unused locker ID
  - getInitlocks
```
public int getInitlocks()
```
    The initial number of locks allocated in the lock table.
    
    Returns:
    
    the initial number of locks allocated in the lock table
  - getInitlockers
```
public int getInitlockers()
```
    The initial number of lockers allocated in lock table.
    
    Returns:
    
    the initial number of lockers allocated in lock table
  - getInitobjects
```
public int getInitobjects()
```
    The initial number of lock objects allocated in lock table.
    
    Returns:
    
    the initial number of lock objects allocated in lock table
  - getLocks
```
public int getLocks()
```
    The current number of locks allocated in lock table.
    
    Returns:
    
    the current number of locks allocated in lock table
  - getLockers
```
public int getLockers()
```
    The current number of lockers allocated in lock table.
    
    Returns:
    
    the current number of lockers allocated in lock table
  - getObjects
```
public int getObjects()
```
    The current number of lock objects allocated in lock table.
    
    Returns:
    
    the current number of lock objects allocated in lock table
  - getMaxLocks
```
public int getMaxLocks()
```
    The maximum number of locks possible.
    
    Returns:
    
    the maximum number of locks possible
  - getMaxLockers
```
public int getMaxLockers()
```
    The maximum number of lockers possible.
    
    Returns:
    
    the maximum number of lockers possible
  - getMaxObjects
```
public int getMaxObjects()
```
    The maximum number of lock objects possible.
    
    Returns:
    
    the maximum number of lock objects possible
  - getPartitions
```
public int getPartitions()
```
    The number of lock table partitions.
    
    Returns:
    
    the number of lock table partitions
  - getTableSize
```
public int getTableSize()
```
    The size of object hash table.
    
    Returns:
    
    the size of object hash table
  - getNumModes
```
public int getNumModes()
```
    The number of lock modes.
    
    Returns:
    
    the number of lock modes
  - getNumLockers
```
public int getNumLockers()
```
    The number of current lockers.
    
    Returns:
    
    the number of current lockers
  - getNumLocks
```
public int getNumLocks()
```
    The number of current locks.
    
    Returns:
    
    the number of current locks
  - getMaxNlocks
```
public int getMaxNlocks()
```
    The maximum number of locks at any one time. Note that if there is more than one partition, this is the sum of the maximum across all partitions.
    
    Returns:
    
    the maximum number of locks at any one time
  - getMaxHlocks
```
public int getMaxHlocks()
```
    The maximum number of locks in any hash bucket at any one time.
    
    Returns:
    
    the maximum number of locks in any hash bucket at any one time
  - getLocksteals
```
public long getLocksteals()
```
    The maximum number of locks stolen by an empty partition.
    
    Returns:
    
    the maximum number of locks stolen by an empty partition
  - getMaxLsteals
```
public long getMaxLsteals()
```
    The maximum number of lock steals for any one partition.
    
    Returns:
    
    the maximum number of locks steals for any one partition
  - getMaxNlockers
```
public int getMaxNlockers()
```
    The maximum number of lockers at any one time.
    
    Returns:
    
    the maximum number of lockers at any one time
  - getNobjects
```
public int getNobjects()
```
    The number of current lock objects.
    
    Returns:
    
    the number of current lock objects
  - getMaxNobjects
```
public int getMaxNobjects()
```
    The maximum number of lock objects at any one time. Note that if there is more than one partition this is the sum of the maximum across all partitions.
    
    Returns:
    
    the maximum number of lock objects at any one time
  - getMaxHobjects
```
public int getMaxHobjects()
```
    The maximum number of objects in any hash bucket at any one time.
    
    Returns:
    
    the maximum number of objects in any hash bucket at any one time
  - getObjectsteals
```
public long getObjectsteals()
```
    The maximum number of objects stolen by an empty partition.
    
    Returns:
    
    the maximum number of objects stolen by an empty partition
  - getMaxOsteals
```
public long getMaxOsteals()
```
    The maximum number of object steals for any one partition.
    
    Returns:
    
    the maximum number of object steals for any one partition
  - getNumRequests
```
public long getNumRequests()
```
    The total number of locks requested.
    
    Returns:
    
    the total number of locks requested
  - getNumReleases
```
public long getNumReleases()
```
    The total number of locks released.
    
    Returns:
    
    the total number of locks released
  - getNumUpgrade
```
public long getNumUpgrade()
```
    The total number of locks upgraded.
    
    Returns:
    
    the total number of locks upgraded
  - getNumDowngrade
```
public long getNumDowngrade()
```
    The total number of locks downgraded.
    
    Returns:
    
    the total number of locks downgraded
  - getLockWait
```
public long getLockWait()
```
    The number of lock requests not immediately available due to conflicts, for which the thread of control waited.
    
    Returns:
    
    the number of locks requests not immediately available due to conflicts for which the thread of control waited
  - getLockNowait
```
public long getLockNowait()
```
    The number of lock requests not immediately available due to conflicts, for which the thread of control did not wait.
    
    Returns:
    
    the number of lock requests not immediately available due to conflicts, for which the thread of control did not wait.
  - getNumDeadlocks
```
public long getNumDeadlocks()
```
    The number of deadlocks.
    
    Returns:
    
    the number of deadlocks
  - getLockTimeout
```
public int getLockTimeout()
```
    Lock timeout value.
    
    Returns:
    
    lock timeout value
  - getNumLockTimeouts
```
public long getNumLockTimeouts()
```
    The number of lock requests that have timed out.
    
    Returns:
    
    the number of lock requests that have timed out
  - getTxnTimeout
```
public int getTxnTimeout()
```
    Transaction timeout value.
    
    Returns:
    
    transaction timeout value
  - getNumTxnTimeouts
```
public long getNumTxnTimeouts()
```
    The number of transactions that have timed out. This value is also a component of st_ndeadlocks, the total number of deadlocks detected.
    
    Returns:
    
    the number of transactions that have timed out
  - getPartWait
```
public long getPartWait()
```
    The number of times that a thread of control was forced to wait before obtaining a lock partition mutex.
    
    Returns:
    
    the number of times that a thread of control was forced to wait before obtaining a lock partition mutex.
  - getPartNowait
```
public long getPartNowait()
```
    The number of times that a thread of control was able to obtain a lock partition mutex without waiting.
    
    Returns:
    
    the number of times that a thread of control was able to obtain a lock partition mutex without waiting.
  - getPartMaxWait
```
public long getPartMaxWait()
```
    The maximum number of times that a thread of control was forced to wait before obtaining any one lock partition mutex.
    
    Returns:
    
    the maximum number of times that a thread of control was forced to wait before obtaining any one lock partition mutex.
  - getPartMaxNowait
```
public long getPartMaxNowait()
```
    The number of times that a thread of control was able to obtain any one lock partition mutex without waiting.
    
    Returns:
    
    the number of times that a thread of control was able to obtain any one lock partition mutex without waiting.
  - getObjsWait
```
public long getObjsWait()
```
    The number of requests to allocate or deallocate an object for which the thread of control waited.
    
    Returns:
    
    the number of requests to allocate or deallocate an object for which the thread of control waited.
  - getObjsNowait
```
public long getObjsNowait()
```
    The number of requests to allocate or deallocate an object for which the thread of control did not wait.
    
    Returns:
    
    the number of requests to allocate or deallocate an object for which the thread of control did not wait.
  - getLockersWait
```
public long getLockersWait()
```
    The number of requests to allocate or deallocate a locker for which the thread of control waited.
    
    Returns:
    
    the number of requests to allocate or deallocate a locker for which the thread of control waited.
  - getLockersNowait
```
public long getLockersNowait()
```
    The number of requests to allocate or deallocate a locker for which the thread of control did not wait.
    
    Returns:
    
    the number of requests to allocate or deallocate a locker for which the thread of control did not wait.
  - getRegionWait
```
public long getRegionWait()
```
    The number of times that a thread of control was forced to wait before obtaining the lock region mutex.
    
    Returns:
    
    the number of times that a thread of control was forced to wait before obtaining the lock region mutex.
  - getRegionNowait
```
public long getRegionNowait()
```
    The number of times that a thread of control was able to obtain the lock region mutex without waiting.
    
    Returns:
    
    the number of times that a thread of control was able to obtain the lock region mutex without waiting.
  - getNumLockersHit
```
public long getNumLockersHit()
```
    The number of hits in the thread locker cache.
    
    Returns:
    
    the number of hits in the thread locker cache.
  - getNumLockersReused
```
public long getNumLockersReused()
```
    Total number of lockers reused.
    
    Returns:
    
    total number of lockers reused
  - getHashLen
```
public int getHashLen()
```
    Maximum length of a lock hash bucket.
    
    Returns:
    
    maximum length of a lock hash bucket
  - getRegSize
```
public long getRegSize()
```
    The size of the lock region.
    
    Returns:
    
    the size of the lock region
  - toString
```
public java.lang.String toString()
```
    For convenience, the LockStats class has a toString method that lists all the data fields.
    
    Overrides:
    
    toString in class java.lang.Object
    
    Returns:
    
    a String that lists all the data fields

Class LockStats

Method Summary

Methods inherited from class java.lang.Object

Method Detail

getId

getCurMaxId

getInitlocks

getInitlockers

getInitobjects

getLocks

getLockers

getObjects

getMaxLocks

getMaxLockers

getMaxObjects

getPartitions

getTableSize

getNumModes

getNumLockers

getNumLocks

getMaxNlocks

getMaxHlocks

getLocksteals

getMaxLsteals

getMaxNlockers

getNobjects

getMaxNobjects

getMaxHobjects

getObjectsteals

getMaxOsteals

getNumRequests

getNumReleases

getNumUpgrade

getNumDowngrade

getLockWait

getLockNowait

getNumDeadlocks

getLockTimeout

getNumLockTimeouts

getTxnTimeout

getNumTxnTimeouts

getPartWait

getPartNowait

getPartMaxWait

getPartMaxNowait

getObjsWait

getObjsNowait

getLockersWait

getLockersNowait

getRegionWait

getRegionNowait

getNumLockersHit

getNumLockersReused

getHashLen

getRegSize

toString