MutableColumnFamilyOptionsInterface

All Known Implementing Classes:

ColumnFamilyOptions, MutableColumnFamilyOptions.MutableColumnFamilyOptionsBuilder, Options
```
public interface MutableColumnFamilyOptionsInterface
```

Method Summary

Methods
Modifier and Type	Method and Description
`long`	`arenaBlockSize()` The size of one block in arena memory allocation.
`boolean`	`disableAutoCompactions()` Disable automatic compactions.
`long`	`hardPendingCompactionBytesLimit()` All writes are stopped if estimated bytes needed to be compaction exceed this threshold.
`double`	`hardRateLimit()` Deprecated. Instead use `hardPendingCompactionBytesLimit()`
`long`	`inplaceUpdateNumLocks()` Number of locks used for inplace update Default: 10000, if inplace_update_support = true, else 0.
`int`	`level0FileNumCompactionTrigger()` Number of files to trigger level-0 compaction.
`int`	`level0SlowdownWritesTrigger()` Soft limit on number of level-0 files.
`int`	`level0StopWritesTrigger()` Maximum number of level-0 files.
`long`	`maxBytesForLevelBase()` The upper-bound of the total size of level-1 files in bytes.
`double`	`maxBytesForLevelMultiplier()` The ratio between the total size of level-(L+1) files and the total size of level-L files for all L.
`int[]`	`maxBytesForLevelMultiplierAdditional()` Different max-size multipliers for different levels.
`long`	`maxCompactionBytes()` We try to limit number of bytes in one compaction to be lower than this threshold.
`long`	`maxSequentialSkipInIterations()` An iteration->Next() sequentially skips over keys with the same user-key unless this option is set.
`long`	`maxSuccessiveMerges()` Maximum number of successive merge operations on a key in the memtable.
`int`	`maxWriteBufferNumber()` Returns maximum number of write buffers.
`long`	`memtableHugePageSize()` Page size for huge page TLB for bloom in memtable.
`double`	`memtablePrefixBloomSizeRatio()` if prefix_extractor is set and memtable_prefix_bloom_size_ratio is not 0, create prefix bloom for memtable with the size of write_buffer_size * memtable_prefix_bloom_size_ratio.
`boolean`	`paranoidFileChecks()` After writing every SST file, reopen it and read all the keys.
`MutableColumnFamilyOptionsInterface`	`setArenaBlockSize(long arenaBlockSize)` The size of one block in arena memory allocation.
`MutableColumnFamilyOptionsInterface`	`setDisableAutoCompactions(boolean disableAutoCompactions)` Disable automatic compactions.
`MutableColumnFamilyOptionsInterface`	`setHardPendingCompactionBytesLimit(long hardPendingCompactionBytesLimit)` All writes are stopped if estimated bytes needed to be compaction exceed this threshold.
`MutableColumnFamilyOptionsInterface`	`setHardRateLimit(double hardRateLimit)` Deprecated. Instead use `setHardPendingCompactionBytesLimit(long)`
`MutableColumnFamilyOptionsInterface`	`setInplaceUpdateNumLocks(long inplaceUpdateNumLocks)` Number of locks used for inplace update Default: 10000, if inplace_update_support = true, else 0.
`MutableColumnFamilyOptionsInterface`	`setLevel0FileNumCompactionTrigger(int level0FileNumCompactionTrigger)` Number of files to trigger level-0 compaction.
`MutableColumnFamilyOptionsInterface`	`setLevel0SlowdownWritesTrigger(int level0SlowdownWritesTrigger)` Soft limit on number of level-0 files.
`MutableColumnFamilyOptionsInterface`	`setLevel0StopWritesTrigger(int level0StopWritesTrigger)` Maximum number of level-0 files.
`MutableColumnFamilyOptionsInterface`	`setMaxBytesForLevelBase(long maxBytesForLevelBase)` The upper-bound of the total size of level-1 files in bytes.
`MutableColumnFamilyOptionsInterface`	`setMaxBytesForLevelMultiplier(double multiplier)` The ratio between the total size of level-(L+1) files and the total size of level-L files for all L.
`MutableColumnFamilyOptionsInterface`	`setMaxBytesForLevelMultiplierAdditional(int[] maxBytesForLevelMultiplierAdditional)` Different max-size multipliers for different levels.
`MutableColumnFamilyOptionsInterface`	`setMaxCompactionBytes(long maxCompactionBytes)` We try to limit number of bytes in one compaction to be lower than this threshold.
`MutableColumnFamilyOptionsInterface`	`setMaxSequentialSkipInIterations(long maxSequentialSkipInIterations)` An iteration->Next() sequentially skips over keys with the same user-key unless this option is set.
`MutableColumnFamilyOptionsInterface`	`setMaxSuccessiveMerges(long maxSuccessiveMerges)` Maximum number of successive merge operations on a key in the memtable.
`MutableColumnFamilyOptionsInterface`	`setMaxWriteBufferNumber(int maxWriteBufferNumber)` The maximum number of write buffers that are built up in memory.
`MutableColumnFamilyOptionsInterface`	`setMemtableHugePageSize(long memtableHugePageSize)` Page size for huge page TLB for bloom in memtable.
`MutableColumnFamilyOptionsInterface`	`setMemtablePrefixBloomSizeRatio(double memtablePrefixBloomSizeRatio)` if prefix_extractor is set and memtable_prefix_bloom_size_ratio is not 0, create prefix bloom for memtable with the size of write_buffer_size * memtable_prefix_bloom_size_ratio.
`MutableColumnFamilyOptionsInterface`	`setParanoidFileChecks(boolean paranoidFileChecks)` After writing every SST file, reopen it and read all the keys.
`MutableColumnFamilyOptionsInterface`	`setSoftPendingCompactionBytesLimit(long softPendingCompactionBytesLimit)` All writes will be slowed down to at least delayed_write_rate if estimated bytes needed to be compaction exceed this threshold.
`MutableColumnFamilyOptionsInterface`	`setSoftRateLimit(double softRateLimit)` Deprecated. Instead use `setSoftPendingCompactionBytesLimit(long)`
`MutableColumnFamilyOptionsInterface`	`setTargetFileSizeBase(long targetFileSizeBase)` The target file size for compaction.
`MutableColumnFamilyOptionsInterface`	`setTargetFileSizeMultiplier(int multiplier)` targetFileSizeMultiplier defines the size ratio between a level-L file and level-(L+1) file.
`MutableColumnFamilyOptionsInterface`	`setVerifyChecksumsInCompaction(boolean verifyChecksumsInCompaction)` If true, compaction will verify checksum on every read that happens as part of compaction Default: true
`MutableColumnFamilyOptionsInterface`	`setWriteBufferSize(long writeBufferSize)` Amount of data to build up in memory (backed by an unsorted log on disk) before converting to a sorted on-disk file.
`long`	`softPendingCompactionBytesLimit()` All writes will be slowed down to at least delayed_write_rate if estimated bytes needed to be compaction exceed this threshold.
`double`	`softRateLimit()` Deprecated. Instead use `softPendingCompactionBytesLimit()`
`long`	`targetFileSizeBase()` The target file size for compaction.
`int`	`targetFileSizeMultiplier()` targetFileSizeMultiplier defines the size ratio between a level-(L+1) file and level-L file.
`boolean`	`verifyChecksumsInCompaction()` If true, compaction will verify checksum on every read that happens as part of compaction Default: true
`long`	`writeBufferSize()` Return size of write buffer size.

- Method Detail
  - setWriteBufferSize
```
MutableColumnFamilyOptionsInterface setWriteBufferSize(long writeBufferSize)
```
    Amount of data to build up in memory (backed by an unsorted log on disk) before converting to a sorted on-disk file. Larger values increase performance, especially during bulk loads. Up to max_write_buffer_number write buffers may be held in memory at the same time, so you may wish to adjust this parameter to control memory usage. Also, a larger write buffer will result in a longer recovery time the next time the database is opened. Default: 4MB
    
    Parameters:
    writeBufferSize - the size of write buffer.
    
    Returns:
    the instance of the current Object.
    
    Throws:
    
    java.lang.IllegalArgumentException - thrown on 32-Bit platforms while overflowing the underlying platform specific value.
  - writeBufferSize
```
long writeBufferSize()
```
    Return size of write buffer size.
    
    Returns:
    size of write buffer.
    See Also:
    setWriteBufferSize(long)
  - setArenaBlockSize
```
MutableColumnFamilyOptionsInterface setArenaBlockSize(long arenaBlockSize)
```
    The size of one block in arena memory allocation. If ≤ 0, a proper value is automatically calculated (usually 1/10 of writer_buffer_size). There are two additional restriction of the The specified size: (1) size should be in the range of [4096, 2 << 30] and (2) be the multiple of the CPU word (which helps with the memory alignment). We'll automatically check and adjust the size number to make sure it conforms to the restrictions. Default: 0
    
    Parameters:
    arenaBlockSize - the size of an arena block
    
    Returns:
    the reference to the current option.
    
    Throws:
    
    java.lang.IllegalArgumentException - thrown on 32-Bit platforms while overflowing the underlying platform specific value.
  - arenaBlockSize
```
long arenaBlockSize()
```
    The size of one block in arena memory allocation. If ≤ 0, a proper value is automatically calculated (usually 1/10 of writer_buffer_size). There are two additional restriction of the The specified size: (1) size should be in the range of [4096, 2 << 30] and (2) be the multiple of the CPU word (which helps with the memory alignment). We'll automatically check and adjust the size number to make sure it conforms to the restrictions. Default: 0
    
    Returns:
    the size of an arena block
  - setMemtablePrefixBloomSizeRatio
```
MutableColumnFamilyOptionsInterface setMemtablePrefixBloomSizeRatio(double memtablePrefixBloomSizeRatio)
```
    if prefix_extractor is set and memtable_prefix_bloom_size_ratio is not 0, create prefix bloom for memtable with the size of write_buffer_size * memtable_prefix_bloom_size_ratio. If it is larger than 0.25, it is santinized to 0.25. Default: 0 (disable)
    
    Parameters:
    memtablePrefixBloomSizeRatio - The ratio
    
    Returns:
    the reference to the current option.
  - memtablePrefixBloomSizeRatio
```
double memtablePrefixBloomSizeRatio()
```
    if prefix_extractor is set and memtable_prefix_bloom_size_ratio is not 0, create prefix bloom for memtable with the size of write_buffer_size * memtable_prefix_bloom_size_ratio. If it is larger than 0.25, it is santinized to 0.25. Default: 0 (disable)
    
    Returns:
    the ratio
  - setMemtableHugePageSize
```
MutableColumnFamilyOptionsInterface setMemtableHugePageSize(long memtableHugePageSize)
```
    Page size for huge page TLB for bloom in memtable. If ≤ 0, not allocate from huge page TLB but from malloc. Need to reserve huge pages for it to be allocated. For example: sysctl -w vm.nr_hugepages=20 See linux doc Documentation/vm/hugetlbpage.txt
    
    Parameters:
    memtableHugePageSize - The page size of the huge page tlb
    
    Returns:
    the reference to the current option.
  - memtableHugePageSize
```
long memtableHugePageSize()
```
    Page size for huge page TLB for bloom in memtable. If ≤ 0, not allocate from huge page TLB but from malloc. Need to reserve huge pages for it to be allocated. For example: sysctl -w vm.nr_hugepages=20 See linux doc Documentation/vm/hugetlbpage.txt
    
    Returns:
    The page size of the huge page tlb
  - setMaxSuccessiveMerges
```
MutableColumnFamilyOptionsInterface setMaxSuccessiveMerges(long maxSuccessiveMerges)
```
    Maximum number of successive merge operations on a key in the memtable. When a merge operation is added to the memtable and the maximum number of successive merges is reached, the value of the key will be calculated and inserted into the memtable instead of the merge operation. This will ensure that there are never more than max_successive_merges merge operations in the memtable. Default: 0 (disabled)
    
    Parameters:
    maxSuccessiveMerges - the maximum number of successive merges.
    
    Returns:
    the reference to the current option.
    
    Throws:
    
    java.lang.IllegalArgumentException - thrown on 32-Bit platforms while overflowing the underlying platform specific value.
  - maxSuccessiveMerges
```
long maxSuccessiveMerges()
```
    Maximum number of successive merge operations on a key in the memtable. When a merge operation is added to the memtable and the maximum number of successive merges is reached, the value of the key will be calculated and inserted into the memtable instead of the merge operation. This will ensure that there are never more than max_successive_merges merge operations in the memtable. Default: 0 (disabled)
    
    Returns:
    the maximum number of successive merges.
  - setMaxWriteBufferNumber
```
MutableColumnFamilyOptionsInterface setMaxWriteBufferNumber(int maxWriteBufferNumber)
```
    The maximum number of write buffers that are built up in memory. The default is 2, so that when 1 write buffer is being flushed to storage, new writes can continue to the other write buffer. Default: 2
    
    Parameters:
    maxWriteBufferNumber - maximum number of write buffers.
    
    Returns:
    the instance of the current Object.
  - maxWriteBufferNumber
```
int maxWriteBufferNumber()
```
    Returns maximum number of write buffers.
    
    Returns:
    maximum number of write buffers.
    See Also:
    setMaxWriteBufferNumber(int)
  - setInplaceUpdateNumLocks
```
MutableColumnFamilyOptionsInterface setInplaceUpdateNumLocks(long inplaceUpdateNumLocks)
```
    Number of locks used for inplace update Default: 10000, if inplace_update_support = true, else 0.
    
    Parameters:
    inplaceUpdateNumLocks - the number of locks used for inplace updates.
    
    Returns:
    the reference to the current option.
    
    Throws:
    
    java.lang.IllegalArgumentException - thrown on 32-Bit platforms while overflowing the underlying platform specific value.
  - inplaceUpdateNumLocks
```
long inplaceUpdateNumLocks()
```
    Number of locks used for inplace update Default: 10000, if inplace_update_support = true, else 0.
    
    Returns:
    the number of locks used for inplace update.
  - setDisableAutoCompactions
```
MutableColumnFamilyOptionsInterface setDisableAutoCompactions(boolean disableAutoCompactions)
```
    Disable automatic compactions. Manual compactions can still be issued on this column family
    
    Parameters:
    disableAutoCompactions - true if auto-compactions are disabled.
    
    Returns:
    the reference to the current option.
  - disableAutoCompactions
```
boolean disableAutoCompactions()
```
    Disable automatic compactions. Manual compactions can still be issued on this column family
    
    Returns:
    true if auto-compactions are disabled.
  - setSoftRateLimit
```
@Deprecated
MutableColumnFamilyOptionsInterface setSoftRateLimit(double softRateLimit)
```
    Deprecated. Instead use setSoftPendingCompactionBytesLimit(long)
    
    Puts are delayed 0-1 ms when any level has a compaction score that exceeds soft_rate_limit. This is ignored when == 0.0. CONSTRAINT: soft_rate_limit ≤ hard_rate_limit. If this constraint does not hold, RocksDB will set soft_rate_limit = hard_rate_limit Default: 0 (disabled)
    
    Parameters:
    softRateLimit - the soft-rate-limit of a compaction score for put delay.
    
    Returns:
    the reference to the current option.
  - softRateLimit
```
@Deprecated
double softRateLimit()
```
    Deprecated. Instead use softPendingCompactionBytesLimit()
    
    Puts are delayed 0-1 ms when any level has a compaction score that exceeds soft_rate_limit. This is ignored when == 0.0. CONSTRAINT: soft_rate_limit ≤ hard_rate_limit. If this constraint does not hold, RocksDB will set soft_rate_limit = hard_rate_limit Default: 0 (disabled)
    
    Returns:
    soft-rate-limit for put delay.
  - setSoftPendingCompactionBytesLimit
```
MutableColumnFamilyOptionsInterface setSoftPendingCompactionBytesLimit(long softPendingCompactionBytesLimit)
```
    All writes will be slowed down to at least delayed_write_rate if estimated bytes needed to be compaction exceed this threshold. Default: 64GB
    
    Parameters:
    softPendingCompactionBytesLimit - The soft limit to impose on compaction
    
    Returns:
    the reference to the current option.
  - softPendingCompactionBytesLimit
```
long softPendingCompactionBytesLimit()
```
    All writes will be slowed down to at least delayed_write_rate if estimated bytes needed to be compaction exceed this threshold. Default: 64GB
    
    Returns:
    The soft limit to impose on compaction
  - setHardRateLimit
```
@Deprecated
MutableColumnFamilyOptionsInterface setHardRateLimit(double hardRateLimit)
```
    Deprecated. Instead use setHardPendingCompactionBytesLimit(long)
    
    Puts are delayed 1ms at a time when any level has a compaction score that exceeds hard_rate_limit. This is ignored when ≤ 1.0. Default: 0 (disabled)
    
    Parameters:
    hardRateLimit - the hard-rate-limit of a compaction score for put delay.
    
    Returns:
    the reference to the current option.
  - hardRateLimit
```
@Deprecated
double hardRateLimit()
```
    Deprecated. Instead use hardPendingCompactionBytesLimit()
    
    Puts are delayed 1ms at a time when any level has a compaction score that exceeds hard_rate_limit. This is ignored when ≤ 1.0. Default: 0 (disabled)
    
    Returns:
    the hard-rate-limit of a compaction score for put delay.
  - setHardPendingCompactionBytesLimit
```
MutableColumnFamilyOptionsInterface setHardPendingCompactionBytesLimit(long hardPendingCompactionBytesLimit)
```
    All writes are stopped if estimated bytes needed to be compaction exceed this threshold. Default: 256GB
    
    Parameters:
    hardPendingCompactionBytesLimit - The hard limit to impose on compaction
    
    Returns:
    the reference to the current option.
  - hardPendingCompactionBytesLimit
```
long hardPendingCompactionBytesLimit()
```
    All writes are stopped if estimated bytes needed to be compaction exceed this threshold. Default: 256GB
    
    Returns:
    The hard limit to impose on compaction
  - setLevel0FileNumCompactionTrigger
```
MutableColumnFamilyOptionsInterface setLevel0FileNumCompactionTrigger(int level0FileNumCompactionTrigger)
```
    Number of files to trigger level-0 compaction. A value < 0 means that level-0 compaction will not be triggered by number of files at all. Default: 4
    
    Parameters:
    level0FileNumCompactionTrigger - The number of files to trigger level-0 compaction
    
    Returns:
    the reference to the current option.
  - level0FileNumCompactionTrigger
```
int level0FileNumCompactionTrigger()
```
    Number of files to trigger level-0 compaction. A value < 0 means that level-0 compaction will not be triggered by number of files at all. Default: 4
    
    Returns:
    The number of files to trigger
  - setLevel0SlowdownWritesTrigger
```
MutableColumnFamilyOptionsInterface setLevel0SlowdownWritesTrigger(int level0SlowdownWritesTrigger)
```
    Soft limit on number of level-0 files. We start slowing down writes at this point. A value < 0 means that no writing slow down will be triggered by number of files in level-0.
    
    Parameters:
    level0SlowdownWritesTrigger - The soft limit on the number of level-0 files
    
    Returns:
    the reference to the current option.
  - level0SlowdownWritesTrigger
```
int level0SlowdownWritesTrigger()
```
    Soft limit on number of level-0 files. We start slowing down writes at this point. A value < 0 means that no writing slow down will be triggered by number of files in level-0.
    
    Returns:
    The soft limit on the number of level-0 files
  - setLevel0StopWritesTrigger
```
MutableColumnFamilyOptionsInterface setLevel0StopWritesTrigger(int level0StopWritesTrigger)
```
    Maximum number of level-0 files. We stop writes at this point.
    
    Parameters:
    level0StopWritesTrigger - The maximum number of level-0 files
    
    Returns:
    the reference to the current option.
  - level0StopWritesTrigger
```
int level0StopWritesTrigger()
```
    Maximum number of level-0 files. We stop writes at this point.
    
    Returns:
    The maximum number of level-0 files
  - setMaxCompactionBytes
```
MutableColumnFamilyOptionsInterface setMaxCompactionBytes(long maxCompactionBytes)
```
    We try to limit number of bytes in one compaction to be lower than this threshold. But it's not guaranteed. Value 0 will be sanitized.
    
    Parameters:
    maxCompactionBytes - max bytes in a compaction
    
    Returns:
    the reference to the current option.
    See Also:
    maxCompactionBytes()
  - maxCompactionBytes
```
long maxCompactionBytes()
```
    We try to limit number of bytes in one compaction to be lower than this threshold. But it's not guaranteed. Value 0 will be sanitized.
    
    Returns:
    the maximum number of bytes in for a compaction.
    See Also:
    setMaxCompactionBytes(long)
  - setTargetFileSizeBase
```
MutableColumnFamilyOptionsInterface setTargetFileSizeBase(long targetFileSizeBase)
```
    The target file size for compaction. This targetFileSizeBase determines a level-1 file size. Target file size for level L can be calculated by targetFileSizeBase * (targetFileSizeMultiplier ^ (L-1)) For example, if targetFileSizeBase is 2MB and target_file_size_multiplier is 10, then each file on level-1 will be 2MB, and each file on level 2 will be 20MB, and each file on level-3 will be 200MB. by default targetFileSizeBase is 2MB.
    
    Parameters:
    targetFileSizeBase - the target size of a level-0 file.
    
    Returns:
    the reference to the current option.
    See Also:
    setTargetFileSizeMultiplier(int)
  - targetFileSizeBase
```
long targetFileSizeBase()
```
    The target file size for compaction. This targetFileSizeBase determines a level-1 file size. Target file size for level L can be calculated by targetFileSizeBase * (targetFileSizeMultiplier ^ (L-1)) For example, if targetFileSizeBase is 2MB and target_file_size_multiplier is 10, then each file on level-1 will be 2MB, and each file on level 2 will be 20MB, and each file on level-3 will be 200MB. by default targetFileSizeBase is 2MB.
    
    Returns:
    the target size of a level-0 file.
    See Also:
    targetFileSizeMultiplier()
  - setTargetFileSizeMultiplier
```
MutableColumnFamilyOptionsInterface setTargetFileSizeMultiplier(int multiplier)
```
    targetFileSizeMultiplier defines the size ratio between a level-L file and level-(L+1) file. By default target_file_size_multiplier is 1, meaning files in different levels have the same target.
    
    Parameters:
    multiplier - the size ratio between a level-(L+1) file and level-L file.
    
    Returns:
    the reference to the current option.
  - targetFileSizeMultiplier
```
int targetFileSizeMultiplier()
```
    targetFileSizeMultiplier defines the size ratio between a level-(L+1) file and level-L file. By default targetFileSizeMultiplier is 1, meaning files in different levels have the same target.
    
    Returns:
    the size ratio between a level-(L+1) file and level-L file.
  - setMaxBytesForLevelBase
```
MutableColumnFamilyOptionsInterface setMaxBytesForLevelBase(long maxBytesForLevelBase)
```
    The upper-bound of the total size of level-1 files in bytes. Maximum number of bytes for level L can be calculated as (maxBytesForLevelBase) * (maxBytesForLevelMultiplier ^ (L-1)) For example, if maxBytesForLevelBase is 20MB, and if max_bytes_for_level_multiplier is 10, total data size for level-1 will be 20MB, total file size for level-2 will be 200MB, and total file size for level-3 will be 2GB. by default 'maxBytesForLevelBase' is 10MB.
    
    Parameters:
    maxBytesForLevelBase - maximum bytes for level base.
    
    Returns:
    the reference to the current option.
    See Also:
    setMaxBytesForLevelMultiplier(double)
  - maxBytesForLevelBase
```
long maxBytesForLevelBase()
```
    The upper-bound of the total size of level-1 files in bytes. Maximum number of bytes for level L can be calculated as (maxBytesForLevelBase) * (maxBytesForLevelMultiplier ^ (L-1)) For example, if maxBytesForLevelBase is 20MB, and if max_bytes_for_level_multiplier is 10, total data size for level-1 will be 20MB, total file size for level-2 will be 200MB, and total file size for level-3 will be 2GB. by default 'maxBytesForLevelBase' is 10MB.
    
    Returns:
    the upper-bound of the total size of level-1 files in bytes.
    See Also:
    maxBytesForLevelMultiplier()
  - setMaxBytesForLevelMultiplier
```
MutableColumnFamilyOptionsInterface setMaxBytesForLevelMultiplier(double multiplier)
```
    The ratio between the total size of level-(L+1) files and the total size of level-L files for all L. DEFAULT: 10
    
    Parameters:
    multiplier - the ratio between the total size of level-(L+1) files and the total size of level-L files for all L.
    
    Returns:
    the reference to the current option.
    See Also:
    setMaxBytesForLevelBase(long)
  - maxBytesForLevelMultiplier
```
double maxBytesForLevelMultiplier()
```
    The ratio between the total size of level-(L+1) files and the total size of level-L files for all L. DEFAULT: 10
    
    Returns:
    the ratio between the total size of level-(L+1) files and the total size of level-L files for all L.
    See Also:
    maxBytesForLevelBase()
  - setMaxBytesForLevelMultiplierAdditional
```
MutableColumnFamilyOptionsInterface setMaxBytesForLevelMultiplierAdditional(int[] maxBytesForLevelMultiplierAdditional)
```
    Different max-size multipliers for different levels. These are multiplied by max_bytes_for_level_multiplier to arrive at the max-size of each level. Default: 1
    
    Parameters:
    maxBytesForLevelMultiplierAdditional - The max-size multipliers for each level
    
    Returns:
    the reference to the current option.
  - maxBytesForLevelMultiplierAdditional
```
int[] maxBytesForLevelMultiplierAdditional()
```
    Different max-size multipliers for different levels. These are multiplied by max_bytes_for_level_multiplier to arrive at the max-size of each level. Default: 1
    
    Returns:
    The max-size multipliers for each level
  - setVerifyChecksumsInCompaction
```
MutableColumnFamilyOptionsInterface setVerifyChecksumsInCompaction(boolean verifyChecksumsInCompaction)
```
    If true, compaction will verify checksum on every read that happens as part of compaction Default: true
    
    Parameters:
    verifyChecksumsInCompaction - true if compaction verifies checksum on every read.
    
    Returns:
    the reference to the current option.
  - verifyChecksumsInCompaction
```
boolean verifyChecksumsInCompaction()
```
    If true, compaction will verify checksum on every read that happens as part of compaction Default: true
    
    Returns:
    true if compaction verifies checksum on every read.
  - setMaxSequentialSkipInIterations
```
MutableColumnFamilyOptionsInterface setMaxSequentialSkipInIterations(long maxSequentialSkipInIterations)
```
    An iteration->Next() sequentially skips over keys with the same user-key unless this option is set. This number specifies the number of keys (with the same userkey) that will be sequentially skipped before a reseek is issued. Default: 8
    
    Parameters:
    maxSequentialSkipInIterations - the number of keys could be skipped in a iteration.
    
    Returns:
    the reference to the current option.
  - maxSequentialSkipInIterations
```
long maxSequentialSkipInIterations()
```
    An iteration->Next() sequentially skips over keys with the same user-key unless this option is set. This number specifies the number of keys (with the same userkey) that will be sequentially skipped before a reseek is issued. Default: 8
    
    Returns:
    the number of keys could be skipped in a iteration.
  - setParanoidFileChecks
```
MutableColumnFamilyOptionsInterface setParanoidFileChecks(boolean paranoidFileChecks)
```
    After writing every SST file, reopen it and read all the keys. Default: false
    
    Parameters:
    paranoidFileChecks - true to enable paranoid file checks
    
    Returns:
    the reference to the current option.
  - paranoidFileChecks
```
boolean paranoidFileChecks()
```
    After writing every SST file, reopen it and read all the keys. Default: false
    
    Returns:
    true if paranoid file checks are enabled

Interface MutableColumnFamilyOptionsInterface

Method Summary

Method Detail

setWriteBufferSize

writeBufferSize

setArenaBlockSize

arenaBlockSize

setMemtablePrefixBloomSizeRatio

memtablePrefixBloomSizeRatio

setMemtableHugePageSize

memtableHugePageSize

setMaxSuccessiveMerges

maxSuccessiveMerges

setMaxWriteBufferNumber

maxWriteBufferNumber

setInplaceUpdateNumLocks

inplaceUpdateNumLocks

setDisableAutoCompactions

disableAutoCompactions

setSoftRateLimit

softRateLimit

setSoftPendingCompactionBytesLimit

softPendingCompactionBytesLimit

setHardRateLimit

hardRateLimit

setHardPendingCompactionBytesLimit

hardPendingCompactionBytesLimit

setLevel0FileNumCompactionTrigger

level0FileNumCompactionTrigger

setLevel0SlowdownWritesTrigger

level0SlowdownWritesTrigger

setLevel0StopWritesTrigger

level0StopWritesTrigger

setMaxCompactionBytes

maxCompactionBytes

setTargetFileSizeBase

targetFileSizeBase

setTargetFileSizeMultiplier

targetFileSizeMultiplier

setMaxBytesForLevelBase

maxBytesForLevelBase

setMaxBytesForLevelMultiplier

maxBytesForLevelMultiplier

setMaxBytesForLevelMultiplierAdditional

maxBytesForLevelMultiplierAdditional

setVerifyChecksumsInCompaction

verifyChecksumsInCompaction

setMaxSequentialSkipInIterations

maxSequentialSkipInIterations

setParanoidFileChecks

paranoidFileChecks