[GitHub] [incubator-iotdb] SilverNarcissus commented on a change in pull request #1423: [IOTDB-782] [Experimental] Clear mlog when creating snapshot

[GitBox <gi...@apache.org>]

SilverNarcissus commented on a change in pull request #1423:
URL: https://github.com/apache/incubator-iotdb/pull/1423#discussion_r446726108



##########
File path: server/src/main/java/org/apache/iotdb/db/metadata/MLogWriter.java
##########
@@ -160,6 +162,14 @@ public static void upgradeMLog(String schemaDir, String logFileName) throws IOEx
     FSFactoryProducer.getFSFactory().moveFile(tmpLogFile, logFile);
   }
 
+  public void clear() throws IOException {
+    writer.close();
+    Files.delete(logFile.toPath());
+    FileWriter fileWriter = new FileWriter(logFile, true);

Review comment:
       Maybe you should use file.getChannel().truncate(0) to clear mlog




----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

For queries about this service, please contact Infrastructure at:
users@infra.apache.org