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Merge branch 'master' into columnfamilies

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Conflicts:
	db/compaction_picker.cc
	db/compaction_picker.h
	db/db_impl.cc
	db/version_set.cc
	db/version_set.h
	include/rocksdb/options.h
	util/options.cc
This commit is contained in:
Igor Canadi
2014-03-05 16:55:51 -08:00
parent e2dd148a8b abeee9f2cb
commit 80a207fc90
13 changed files with 275 additions and 113 deletions
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16
db/compaction_picker.h
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@@ -20,6 +20,7 @@
namespace rocksdb {
class LogBuffer;
class Compaction;
class Version;
@@ -33,7 +34,8 @@ class CompactionPicker {
// Returns nullptr if there is no compaction to be done.
// Otherwise returns a pointer to a heap-allocated object that
// describes the compaction. Caller should delete the result.
virtual Compaction* PickCompaction(Version* version) = 0;
virtual Compaction* PickCompaction(Version* version,
LogBuffer* log_buffer) = 0;
// Return a compaction object for compacting the range [begin,end] in
// the specified level. Returns nullptr if there is nothing in that
@@ -131,16 +133,19 @@ class UniversalCompactionPicker : public CompactionPicker {
UniversalCompactionPicker(const ColumnFamilyOptions* options,
const InternalKeyComparator* icmp, Logger* logger)
: CompactionPicker(options, icmp, logger) {}
virtual Compaction* PickCompaction(Version* version) override;
virtual Compaction* PickCompaction(Version* version,
LogBuffer* log_buffer) override;
private:
// Pick Universal compaction to limit read amplification
Compaction* PickCompactionUniversalReadAmp(Version* version, double score,
unsigned int ratio,
unsigned int num_files);
unsigned int num_files,
LogBuffer* log_buffer);
// Pick Universal compaction to limit space amplification.
Compaction* PickCompactionUniversalSizeAmp(Version* version, double score);
Compaction* PickCompactionUniversalSizeAmp(Version* version, double score,
LogBuffer* log_buffer);
};
class LevelCompactionPicker : public CompactionPicker {
@@ -148,7 +153,8 @@ class LevelCompactionPicker : public CompactionPicker {
LevelCompactionPicker(const ColumnFamilyOptions* options,
const InternalKeyComparator* icmp, Logger* logger)
: CompactionPicker(options, icmp, logger) {}
virtual Compaction* PickCompaction(Version* version) override;
virtual Compaction* PickCompaction(Version* version,
LogBuffer* log_buffer) override;
private:
// For the specfied level, pick a compaction.