kadirozde commented on code in PR #5545:
URL: https://github.com/apache/hbase/pull/5545#discussion_r1443685793
##########
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/compactions/DefaultCompactor.java:
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@@ -17,42 +17,45 @@
*/
package org.apache.hadoop.hbase.regionserver.compactions;
+import static
org.apache.hadoop.hbase.regionserver.DefaultStoreEngine.DEFAULT_COMPACTION_ENABLE_DUAL_FILE_WRITER_KEY;
+import static
org.apache.hadoop.hbase.regionserver.DefaultStoreEngine.DEFAULT_ENABLE_DUAL_FILE_WRITER;
+
import java.io.IOException;
import java.util.List;
import java.util.function.Consumer;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.hbase.regionserver.DualFileWriter;
import org.apache.hadoop.hbase.regionserver.HStore;
import org.apache.hadoop.hbase.regionserver.InternalScanner;
-import org.apache.hadoop.hbase.regionserver.StoreFileWriter;
import org.apache.hadoop.hbase.regionserver.throttle.ThroughputController;
import org.apache.hadoop.hbase.security.User;
import org.apache.yetus.audience.InterfaceAudience;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-import org.apache.hbase.thirdparty.com.google.common.collect.Lists;
/**
* Compact passed set of files. Create an instance and then call
* {@link #compact(CompactionRequestImpl, ThroughputController, User)}
*/
@InterfaceAudience.Private
-public class DefaultCompactor extends Compactor<StoreFileWriter> {
- private static final Logger LOG =
LoggerFactory.getLogger(DefaultCompactor.class);
+public class DefaultCompactor extends
AbstractMultiOutputCompactor<DualFileWriter> {
public DefaultCompactor(Configuration conf, HStore store) {
super(conf, store);
}
- private final CellSinkFactory<StoreFileWriter> writerFactory =
- new CellSinkFactory<StoreFileWriter>() {
+ private final CellSinkFactory<DualFileWriter> writerFactory =
Review Comment:
DualFileWriter is composed of 1 or 2 store file writes. If the dual file
compaction is disabled, DualFileWriter will have a single store file writer and
becomes just a simple wrapper for that store file writer. When the dual file
compaction is enabled then, it splits the cells between two store file writers.
So, StoreFileWriter is used as before.
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