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java.lang.Objectcom.sleepycat.je.cleaner.FileSelector
class FileSelector
Keeps track of the status of files for which cleaning is in progres.
Constructor Summary | |
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FileSelector()
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Method Summary | |
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(package private) void |
addCleanedFile(Long fileNum)
When cleaning is complete, move the file from the to-be-cleaned set to the cleaned set. |
(package private) void |
addPendingLN(LN ln,
DatabaseId dbId,
byte[] key,
byte[] dupKey)
Adds the given LN info to the pending LN set. |
(package private) Set |
copySafeToDeleteFiles()
Returns a copy of the safe-to-delete files. |
(package private) Set[] |
getFilesAtCheckpointStart()
Returns a copy of the cleaned and fully-processed files at the time a checkpoint starts. |
(package private) LNInfo[] |
getPendingLNs()
Returns an array of LNInfo for LNs that could not be migrated in a prior cleaning attempt, or null if no LNs are pending. |
(package private) boolean |
isFileCleaningInProgress(Long file)
Returns whether the file is in any stage of the cleaning process. |
(package private) void |
removeDeletedFile(Long fileNum)
Removes file from the safe-to-delete set after the file itself has finally been deleted. |
(package private) void |
removePendingLN(long nodeId)
Removes the LN for the given node ID from the pending LN set. |
(package private) List |
selectFilesForCleaning(UtilizationProfile profile,
boolean forceCleaning,
Set lowUtilizationFiles,
int maxBatchFiles)
Returns the best file that qualifies for cleaning, or null if no file qualifies. |
(package private) void |
updateFilesAtCheckpointEnd(Set[] files)
When a checkpoint is complete, moves the previously cleaned and fully-processed files to the checkpointed and safe-to-delete sets. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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FileSelector()
Method Detail |
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List selectFilesForCleaning(UtilizationProfile profile, boolean forceCleaning, Set lowUtilizationFiles, int maxBatchFiles) throws DatabaseException
forceCleaning
- is true to always select a file, even if its
utilization is above the minimum utilization threshold.lowUtilizationFiles
- is a returned set of files that are below the
minimum utilization threshold.maxBatchFiles
- is the maximum number of files to be selected at
one time, or zero if there is no limit.
DatabaseException
boolean isFileCleaningInProgress(Long file)
void addCleanedFile(Long fileNum)
Set[] getFilesAtCheckpointStart()
void updateFilesAtCheckpointEnd(Set[] files)
void addPendingLN(LN ln, DatabaseId dbId, byte[] key, byte[] dupKey)
LNInfo[] getPendingLNs()
void removePendingLN(long nodeId)
Set copySafeToDeleteFiles()
void removeDeletedFile(Long fileNum)
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