[iotdb] branch master updated: [IOTDB-3632] Add log for snapshot taker and loader (#6401)

[wangchao316]

This is an automated email from the ASF dual-hosted git repository.

wangchao316 pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/iotdb.git


The following commit(s) were added to refs/heads/master by this push:
     new 19fff1d5d7 [IOTDB-3632] Add log for snapshot taker and loader (#6401)
19fff1d5d7 is described below

commit 19fff1d5d785227d4404acfc97f76cc28db93b8f
Author: Liu Xuxin <37140360+thumark...@users.noreply.github.com>
AuthorDate: Thu Jun 23 20:10:06 2022 +0800

    [IOTDB-3632] Add log for snapshot taker and loader (#6401)
    
    [IOTDB-3632] Add log for snapshot taker and loader (#6401)
---
 .../java/org/apache/iotdb/db/engine/snapshot/SnapshotLoader.java   | 7 +++++++
 .../java/org/apache/iotdb/db/engine/snapshot/SnapshotTaker.java    | 6 ++++++
 2 files changed, 13 insertions(+)

diff --git 
a/server/src/main/java/org/apache/iotdb/db/engine/snapshot/SnapshotLoader.java 
b/server/src/main/java/org/apache/iotdb/db/engine/snapshot/SnapshotLoader.java
index 7283e621ba..8067da84d4 100644
--- 
a/server/src/main/java/org/apache/iotdb/db/engine/snapshot/SnapshotLoader.java
+++ 
b/server/src/main/java/org/apache/iotdb/db/engine/snapshot/SnapshotLoader.java
@@ -72,8 +72,14 @@ public class SnapshotLoader {
    * @return
    */
   public DataRegion loadSnapshotForStateMachine() {
+    LOGGER.info(
+        "Loading snapshot for {}-{}, source directory is {}",
+        storageGroupName,
+        dataRegionId,
+        snapshotPath);
     try {
       deleteAllFilesInDataDirs();
+      LOGGER.info("Remove all data files in original data dir");
     } catch (IOException e) {
       return null;
     }
@@ -83,6 +89,7 @@ public class SnapshotLoader {
     if (sourceDataDir.exists()) {
       try {
         createLinksFromSnapshotDirToDataDir(sourceDataDir);
+        LOGGER.info("Move data files from snapshot to data directory");
       } catch (IOException | DiskSpaceInsufficientException e) {
         LOGGER.error(
             "Exception occurs when creating links from snapshot directory to 
data directory", e);
diff --git 
a/server/src/main/java/org/apache/iotdb/db/engine/snapshot/SnapshotTaker.java 
b/server/src/main/java/org/apache/iotdb/db/engine/snapshot/SnapshotTaker.java
index 02f69266c6..4796b66ac8 100644
--- 
a/server/src/main/java/org/apache/iotdb/db/engine/snapshot/SnapshotTaker.java
+++ 
b/server/src/main/java/org/apache/iotdb/db/engine/snapshot/SnapshotTaker.java
@@ -118,6 +118,12 @@ public class SnapshotTaker {
       manager.readUnlock();
     }
 
+    LOGGER.info(
+        "Successfully take snapshot for {}-{}, snapshot directory is {}",
+        dataRegion.getLogicalStorageGroupName(),
+        dataRegion.getDataRegionId(),
+        snapshotDirPath);
+
     return true;
   }