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@InterfaceAudience.Private public interface WALActionsListener
Get notification of FSHLog
/WAL log events. The invocations are inline
so make sure your implementation is fast else you'll slow hbase.
Method Summary | |
---|---|
void |
logCloseRequested()
The WAL is about to close. |
void |
logRollRequested()
A request was made that the WAL be rolled. |
void |
postLogArchive(org.apache.hadoop.fs.Path oldPath,
org.apache.hadoop.fs.Path newPath)
The WAL has been archived. |
void |
postLogRoll(org.apache.hadoop.fs.Path oldPath,
org.apache.hadoop.fs.Path newPath)
The WAL has been rolled. |
void |
preLogArchive(org.apache.hadoop.fs.Path oldPath,
org.apache.hadoop.fs.Path newPath)
The WAL is going to be archived. |
void |
preLogRoll(org.apache.hadoop.fs.Path oldPath,
org.apache.hadoop.fs.Path newPath)
The WAL is going to be rolled. |
void |
visitLogEntryBeforeWrite(HRegionInfo info,
HLogKey logKey,
WALEdit logEdit)
Called before each write. |
void |
visitLogEntryBeforeWrite(HTableDescriptor htd,
HLogKey logKey,
WALEdit logEdit)
|
Method Detail |
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void preLogRoll(org.apache.hadoop.fs.Path oldPath, org.apache.hadoop.fs.Path newPath) throws IOException
oldPath
- the path to the old hlognewPath
- the path to the new hlog
IOException
void postLogRoll(org.apache.hadoop.fs.Path oldPath, org.apache.hadoop.fs.Path newPath) throws IOException
oldPath
- the path to the old hlognewPath
- the path to the new hlog
IOException
void preLogArchive(org.apache.hadoop.fs.Path oldPath, org.apache.hadoop.fs.Path newPath) throws IOException
oldPath
- the path to the old hlognewPath
- the path to the new hlog
IOException
void postLogArchive(org.apache.hadoop.fs.Path oldPath, org.apache.hadoop.fs.Path newPath) throws IOException
oldPath
- the path to the old hlognewPath
- the path to the new hlog
IOException
void logRollRequested()
void logCloseRequested()
void visitLogEntryBeforeWrite(HRegionInfo info, HLogKey logKey, WALEdit logEdit)
info
- logKey
- logEdit
- void visitLogEntryBeforeWrite(HTableDescriptor htd, HLogKey logKey, WALEdit logEdit)
htd
- logKey
- logEdit
-
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