virajjasani commented on a change in pull request #1913:
URL: https://github.com/apache/hbase/pull/1913#discussion_r441745855
##########
File path:
hbase-server/src/main/java/org/apache/hadoop/hbase/wal/BoundedRecoveredHFilesOutputSink.java
##########
@@ -99,12 +102,13 @@ public void append(RegionEntryBuffer buffer) throws
IOException {
}
}
- // The key point is create a new writer for each column family, write
edits then close writer.
+ // Create a new hfile writer for each column family, write edits then
close writer.
String regionName = Bytes.toString(buffer.encodedRegionName);
for (Map.Entry<String, CellSet> cellsEntry : familyCells.entrySet()) {
String familyName = cellsEntry.getKey();
StoreFileWriter writer = createRecoveredHFileWriter(buffer.tableName,
regionName,
familySeqIds.get(familyName), familyName, isMetaTable);
+ LOG.trace("Created {}", writer.getPath());
Review comment:
This is to avoid the cost of parameter construction:
http://logging.apache.org/log4j/1.2/manual.html#performance
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