MemtablePool.SubPool (apache-cassandra API)

java.lang.Object
- org.apache.cassandra.utils.memory.MemtablePool.SubPool

Enclosing class:

MemtablePool
```
public class MemtablePool.SubPool
extends java.lang.Object
```
Note the difference between acquire() and allocate(); allocate() makes more resources available to all owners, and acquire() makes shared resources unavailable but still recorded. An Owner must always acquire resources, but only needs to allocate if there are none already available. This distinction is not always meaningful.

Field Summary

Fields
Modifier and Type Field Description

float cleanThreshold

long limit

Constructor Summary

Constructors
Constructor Description

SubPool(long limit, float cleanThreshold)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`com.codahale.metrics.Timer.Context`	`blockedTimerContext()`
`long`	`getReclaiming()`
`WaitQueue`	`hasRoom()`
`MemtableAllocator.SubAllocator`	`newAllocator()`
`float`	`reclaimingRatio()`
`long`	`used()`
`float`	`usedRatio()`

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

Field Detail

limit
```
public final long limit
```

cleanThreshold
```
public final float cleanThreshold
```

Constructor Detail

SubPool

public SubPool(long limit,
               float cleanThreshold)

Method Detail

used
```
public long used()
```

getReclaiming
```
public long getReclaiming()
```

reclaimingRatio
```
public float reclaimingRatio()
```

usedRatio
```
public float usedRatio()
```

newAllocator

public MemtableAllocator.SubAllocator newAllocator()

hasRoom
```
public WaitQueue hasRoom()
```

blockedTimerContext

public com.codahale.metrics.Timer.Context blockedTimerContext()