[GitHub] [incubator-doris] morningman commented on a change in pull request #6323: [Feature] Support for cleaning the trash actively

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

morningman commented on a change in pull request #6323:
URL: https://github.com/apache/incubator-doris/pull/6323#discussion_r682783165



##########
File path: fe/fe-core/src/main/java/org/apache/doris/analysis/AdminCleanTrashStmt.java
##########
@@ -0,0 +1,73 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License.  You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+package org.apache.doris.analysis;
+
+import org.apache.doris.catalog.Catalog;
+import org.apache.doris.common.AnalysisException;
+import org.apache.doris.common.ErrorCode;
+import org.apache.doris.common.ErrorReport;
+import org.apache.doris.qe.ConnectContext;
+import org.apache.doris.system.Backend;
+import org.apache.doris.mysql.privilege.PrivPredicate;
+
+import com.google.common.collect.ImmutableMap;
+import com.google.common.collect.Lists;
+
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+public class AdminCleanTrashStmt extends DdlStmt {
+    private List<Backend> backends = Lists.newArrayList();
+
+    public AdminCleanTrashStmt(List<String> backends) {
+        ImmutableMap<Long, Backend> backendsInfo = Catalog.getCurrentSystemInfo().getIdToBackend();
+        Map<String, Long> backendsID = new HashMap<String, Long>();
+        for (Backend backend : backendsInfo.values()) {
+            backendsID.put(String.valueOf(backend.getHost()) + ":" + String.valueOf(backend.getHeartbeatPort()), backend.getId());
+        }
+        if (backends == null) {
+            for (Backend backend : backendsInfo.values()) {
+                this.backends.add(backend);
+            }
+        } else {
+            for (String backend : backends) {
+                if (backendsID.get(backend) != null) {
+                    this.backends.add(backendsInfo.get(backendsID.get(backend)));
+                    backendsID.remove(backend); // avoid repetition
+                }
+            }
+        }
+    }
+
+    public List<Backend> getBackends() {
+        return backends;
+    }
+
+    @Override
+    public void analyze(Analyzer analyzer) throws AnalysisException {
+        if (!Catalog.getCurrentCatalog().getAuth().checkGlobalPriv(ConnectContext.get(), PrivPredicate.ADMIN)) {
+            ErrorReport.reportAnalysisException(ErrorCode.ERR_SPECIFIC_ACCESS_DENIED_ERROR, "ADMIN");
+        }
+    }
+
+    @Override
+    public RedirectStatus getRedirectStatus() {
+        return RedirectStatus.FORWARD_WITH_SYNC;

Review comment:
       Do we need to forward this stmt to master?

##########
File path: be/src/service/backend_service.cpp
##########
@@ -339,4 +339,7 @@ void BackendService::get_stream_load_record(TStreamLoadRecordResult& result,
     }
 }
 
+void BackendService::clean_trash() {
+    StorageEngine::instance()->start_trash_sweep(nullptr, true);

Review comment:
       It may takes a very long time to clean the trash. So I suggest to use a async call.




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