| Package | Description | 
|---|---|
| org.apache.hadoop.hbase.util | |
| org.apache.hadoop.hbase.wal | 
| Modifier and Type | Method and Description | 
|---|---|
| static <K,V> V | CollectionUtils. computeIfAbsentEx(ConcurrentMap<K,V> map,
                 K key,
                 CollectionUtils.IOExceptionSupplier<V> supplier)In HBASE-16648 we found that ConcurrentHashMap.get is much faster than computeIfAbsent if the
 value already exists. | 
| Modifier and Type | Method and Description | 
|---|---|
| static long | WALSplitter. getMaxRegionSequenceId(org.apache.hadoop.conf.Configuration conf,
                      RegionInfo region,
                      CollectionUtils.IOExceptionSupplier<org.apache.hadoop.fs.FileSystem> rootFsSupplier,
                      CollectionUtils.IOExceptionSupplier<org.apache.hadoop.fs.FileSystem> walFsSupplier)Deprecated. 
 Only for compatibility, will be removed in 4.0.0. | 
| static long | WALSplitter. getMaxRegionSequenceId(org.apache.hadoop.conf.Configuration conf,
                      RegionInfo region,
                      CollectionUtils.IOExceptionSupplier<org.apache.hadoop.fs.FileSystem> rootFsSupplier,
                      CollectionUtils.IOExceptionSupplier<org.apache.hadoop.fs.FileSystem> walFsSupplier)Deprecated. 
 Only for compatibility, will be removed in 4.0.0. | 
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