Fix bug for multi path file loading. Opt code checking for multi-path...

Fix bug for multi path file loading. Opt code checking for multi-path commitlog path in storePathCommitLog.

broker/src/main/java/org/apache/rocketmq/broker/processor/SendMessageProcessor.java

@@ -638,14 +638,10 @@ public class SendMessageProcessor extends AbstractSendMessageProcessor implement
     private String diskUtil() {
         double physicRatio = 100;
         String storePath = this.brokerController.getMessageStoreConfig().getStorePathCommitLog();
-        if (storePath.contains(MessageStoreConfig.MULTI_PATH_SPLITTER)) {
         String[] paths = storePath.trim().split(MessageStoreConfig.MULTI_PATH_SPLITTER);
         for (String storePathPhysic : paths) {
             physicRatio = Math.min(physicRatio, UtilAll.getDiskPartitionSpaceUsedPercent(storePathPhysic));
         }
-        } else {
-            physicRatio = UtilAll.getDiskPartitionSpaceUsedPercent(storePath);
-        }
 
         String storePathLogis =
             StorePathConfigHelper.getStorePathConsumeQueue(this.brokerController.getMessageStoreConfig().getStorePathRootDir());

store/src/main/java/org/apache/rocketmq/store/DefaultMessageStore.java

@@ -783,9 +783,9 @@ public class DefaultMessageStore implements MessageStore {
     public HashMap<String, String> getRuntimeInfo() {
         HashMap<String, String> result = this.storeStatsService.getRuntimeInfo();
 
-        String commitLogStorePath = DefaultMessageStore.this.getMessageStoreConfig().getStorePathCommitLog();
-        if (commitLogStorePath.contains(MessageStoreConfig.MULTI_PATH_SPLITTER)) {
+        {
             double minPhysicsUsedRatio = Double.MAX_VALUE;
+            String commitLogStorePath = getStorePathPhysic();
             String[] paths = commitLogStorePath.trim().split(MessageStoreConfig.MULTI_PATH_SPLITTER);
             for (String clPath : paths) {
                 double physicRatio = UtilAll.isPathExists(clPath) ?
@@ -794,11 +794,6 @@ public class DefaultMessageStore implements MessageStore {
                 minPhysicsUsedRatio = Math.min(minPhysicsUsedRatio, physicRatio);
             }
             result.put(RunningStats.commitLogDiskRatio.name(), String.valueOf(minPhysicsUsedRatio));
-        } else {
-            String storePathPhysic = DefaultMessageStore.this.getMessageStoreConfig().getStorePathCommitLog();
-            double physicRatio = UtilAll.isPathExists(storePathPhysic) ?
-                    UtilAll.getDiskPartitionSpaceUsedPercent(storePathPhysic) : -1;
-            result.put(RunningStats.commitLogDiskRatio.name(), String.valueOf(physicRatio));
         }
 
         {
@@ -1663,14 +1658,8 @@ public class DefaultMessageStore implements MessageStore {
             cleanImmediately = false;
 
             {
-                String[] storePaths;
                 String commitLogStorePath = DefaultMessageStore.this.getMessageStoreConfig().getStorePathCommitLog();
-                if (commitLogStorePath.contains(MessageStoreConfig.MULTI_PATH_SPLITTER)) {
-                    storePaths = commitLogStorePath.trim().split(MessageStoreConfig.MULTI_PATH_SPLITTER);
-                } else {
-                    storePaths = new String[]{commitLogStorePath};
-                }
-
+                String[] storePaths = commitLogStorePath.trim().split(MessageStoreConfig.MULTI_PATH_SPLITTER);
                 Set<String> fullStorePath = new HashSet<>();
                 double minPhysicRatio = 100;
                 String minStorePath = null;
@@ -1748,9 +1737,8 @@ public class DefaultMessageStore implements MessageStore {
         }
 
         public double calcStorePathPhysicRatio() {
-            String storePath = getStorePathPhysic();
-            if (storePath.contains(MessageStoreConfig.MULTI_PATH_SPLITTER)) {
             Set<String> fullStorePath = new HashSet<>();
+            String storePath = getStorePathPhysic();
             String[] paths = storePath.trim().split(MessageStoreConfig.MULTI_PATH_SPLITTER);
             double minPhysicRatio = 100;
             for (String path : paths) {
@@ -1763,10 +1751,7 @@ public class DefaultMessageStore implements MessageStore {
             }
             DefaultMessageStore.this.commitLog.setFullStorePaths(fullStorePath);
             return minPhysicRatio;
-            } else {
-                return UtilAll.isPathExists(storePath) ?
-                        UtilAll.getDiskPartitionSpaceUsedPercent(storePath) : -1;
-            }
+
         }
 
         public boolean isSpaceFull() {

store/src/main/java/org/apache/rocketmq/store/MappedFileQueue.java

@@ -21,6 +21,7 @@ import java.io.IOException;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collections;
+import java.util.Comparator;
 import java.util.Iterator;
 import java.util.List;
 import java.util.ListIterator;
@@ -157,7 +158,8 @@ public class MappedFileQueue {
 
     public boolean doLoad(List<File> files) {
         // ascending order
-        Collections.sort(files);
+        files.sort(Comparator.comparing(File::getName));
+
         for (File file : files) {
             if (file.length() != this.mappedFileSize) {
                 log.warn(file + "\t" + file.length()

store/src/test/java/org/apache/rocketmq/store/MultiPathMappedFileQueueTest.java

@@ -20,6 +20,7 @@ package org.apache.rocketmq.store;
 import static org.assertj.core.api.Assertions.assertThat;
 import java.util.HashSet;
 import java.util.Set;
+import org.apache.rocketmq.common.UtilAll;
 import org.apache.rocketmq.store.config.MessageStoreConfig;
 import org.junit.Test;
 
@@ -78,6 +79,10 @@ public class MultiPathMappedFileQueueTest {
         mappedFileQueue.load();
 
         assertThat(mappedFileQueue.mappedFiles.size()).isEqualTo(1024);
+        for (int i = 0; i < 1024; i++) {
+            assertThat(mappedFileQueue.mappedFiles.get(i).getFile().getName())
+                    .isEqualTo(UtilAll.offset2FileName(1024 * i));
+        }
         mappedFileQueue.destroy();
 
     }