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Posted to reviews@iotdb.apache.org by GitBox <gi...@apache.org> on 2022/10/26 08:35:45 UTC

[GitHub] [iotdb] suchenglong opened a new pull request, #7739: [IOTDB-4758]Delete snapshot after region migration

suchenglong opened a new pull request, #7739:
URL: https://github.com/apache/iotdb/pull/7739

   ## Description
   
   ### Content1 ...
   Delete remote snapshot after region migration
   
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   This PR has:
   - [ ] been self-reviewed.
       - [ ] concurrent read
       - [x] concurrent write
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   - [ ] added documentation for new or modified features or behaviors.
   - [ ] added Javadocs for most classes and all non-trivial methods. 
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   - [x] been tested in a test IoTDB cluster.
   
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[GitHub] [iotdb] wangchao316 commented on a diff in pull request #7739: [IOTDB-4758]Delete snapshot after region migration

Posted by GitBox <gi...@apache.org>.
wangchao316 commented on code in PR #7739:
URL: https://github.com/apache/iotdb/pull/7739#discussion_r1005498641


##########
consensus/src/main/java/org/apache/iotdb/consensus/multileader/service/MultiLeaderRPCServiceProcessor.java:
##########
@@ -277,5 +279,33 @@ public void triggerSnapshotLoad(
         new TTriggerSnapshotLoadRes(new TSStatus(TSStatusCode.SUCCESS_STATUS.getStatusCode())));
   }
 
+  @Override
+  public void cleanupTransferredSnapshot(
+      TCleanupTransferredSnapshotReq req,
+      AsyncMethodCallback<TCleanupTransferredSnapshotRes> resultHandler)
+      throws TException {
+    ConsensusGroupId groupId =
+        ConsensusGroupId.Factory.createFromTConsensusGroupId(req.getConsensusGroupId());
+    MultiLeaderServerImpl impl = consensus.getImpl(groupId);
+    if (impl == null) {
+      String message =
+          String.format("unexpected consensusGroupId %s for buildSyncLogChannel request", groupId);
+      logger.error(message);
+      TSStatus status = new TSStatus(TSStatusCode.INTERNAL_SERVER_ERROR.getStatusCode());
+      status.setMessage(message);
+      resultHandler.onComplete(new TCleanupTransferredSnapshotRes(status));
+      return;
+    }
+    TSStatus responseStatus = null;
+    try {
+      impl.cleanupTransferredSnapshot(req.snapshotId);
+      responseStatus = new TSStatus(TSStatusCode.SUCCESS_STATUS.getStatusCode());
+    } catch (ConsensusGroupAddPeerException e) {
+      responseStatus = new TSStatus(TSStatusCode.INTERNAL_SERVER_ERROR.getStatusCode());

Review Comment:
   print  log exception.



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[GitHub] [iotdb] wangchao316 commented on a diff in pull request #7739: [IOTDB-4758]Delete snapshot after region migration

Posted by GitBox <gi...@apache.org>.
wangchao316 commented on code in PR #7739:
URL: https://github.com/apache/iotdb/pull/7739#discussion_r1005491578


##########
consensus/src/main/java/org/apache/iotdb/consensus/multileader/MultiLeaderConsensus.java:
##########
@@ -278,6 +278,10 @@ public ConsensusGenericResponse addPeer(ConsensusGroupId groupId, Peer peer) {
       logger.info("[MultiLeaderConsensus] activate new peer...");
       impl.activePeer(peer);
 
+      // step 7: spot clean
+      logger.info("[MultiLeaderConsensus] do spot clean...");

Review Comment:
   why clean in addPeer()?



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[GitHub] [iotdb] suchenglong commented on a diff in pull request #7739: [IOTDB-4758]Delete snapshot after region migration

Posted by GitBox <gi...@apache.org>.
suchenglong commented on code in PR #7739:
URL: https://github.com/apache/iotdb/pull/7739#discussion_r1005511547


##########
consensus/src/main/java/org/apache/iotdb/consensus/multileader/MultiLeaderConsensus.java:
##########
@@ -278,6 +278,10 @@ public ConsensusGenericResponse addPeer(ConsensusGroupId groupId, Peer peer) {
       logger.info("[MultiLeaderConsensus] activate new peer...");
       impl.activePeer(peer);
 
+      // step 7: spot clean
+      logger.info("[MultiLeaderConsensus] do spot clean...");

Review Comment:
   After a peer is added, the snapshot replicas need to be transferred. After the snapshot replicas are transferred and loaded, you need to clear the temporary replica files on the remote server to prevent data space waste.



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[GitHub] [iotdb] suchenglong commented on a diff in pull request #7739: [IOTDB-4758]Delete snapshot after region migration

Posted by GitBox <gi...@apache.org>.
suchenglong commented on code in PR #7739:
URL: https://github.com/apache/iotdb/pull/7739#discussion_r1005548610


##########
consensus/src/main/java/org/apache/iotdb/consensus/multileader/service/MultiLeaderRPCServiceProcessor.java:
##########
@@ -277,5 +279,33 @@ public void triggerSnapshotLoad(
         new TTriggerSnapshotLoadRes(new TSStatus(TSStatusCode.SUCCESS_STATUS.getStatusCode())));
   }
 
+  @Override
+  public void cleanupTransferredSnapshot(
+      TCleanupTransferredSnapshotReq req,
+      AsyncMethodCallback<TCleanupTransferredSnapshotRes> resultHandler)
+      throws TException {
+    ConsensusGroupId groupId =
+        ConsensusGroupId.Factory.createFromTConsensusGroupId(req.getConsensusGroupId());
+    MultiLeaderServerImpl impl = consensus.getImpl(groupId);
+    if (impl == null) {
+      String message =
+          String.format("unexpected consensusGroupId %s for buildSyncLogChannel request", groupId);
+      logger.error(message);
+      TSStatus status = new TSStatus(TSStatusCode.INTERNAL_SERVER_ERROR.getStatusCode());
+      status.setMessage(message);
+      resultHandler.onComplete(new TCleanupTransferredSnapshotRes(status));
+      return;
+    }
+    TSStatus responseStatus = null;
+    try {
+      impl.cleanupTransferredSnapshot(req.snapshotId);
+      responseStatus = new TSStatus(TSStatusCode.SUCCESS_STATUS.getStatusCode());
+    } catch (ConsensusGroupAddPeerException e) {
+      responseStatus = new TSStatus(TSStatusCode.INTERNAL_SERVER_ERROR.getStatusCode());

Review Comment:
   add error log



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[GitHub] [iotdb] xingtanzjr merged pull request #7739: [IOTDB-4758]Delete snapshot after region migration

Posted by GitBox <gi...@apache.org>.
xingtanzjr merged PR #7739:
URL: https://github.com/apache/iotdb/pull/7739


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