Refactoring the method name of checking directybuffer pool available numbers

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

@@ -53,7 +53,7 @@ public class AllocateMappedFileService extends ServiceThread {
         if (this.messageStore.getMessageStoreConfig().isTransientStorePoolEnable()) {
             if (this.messageStore.getMessageStoreConfig().isFastFailIfNoBufferInStorePool()
                 && BrokerRole.SLAVE != this.messageStore.getMessageStoreConfig().getBrokerRole()) { //if broker is slave, don't fast fail even no buffer in pool
-                canSubmitRequests = this.messageStore.getTransientStorePool().remainBufferNumbs() - this.requestQueue.size();
+                canSubmitRequests = this.messageStore.getTransientStorePool().availableBufferNums() - this.requestQueue.size();
             }
         }
 
@@ -63,7 +63,7 @@ public class AllocateMappedFileService extends ServiceThread {
         if (nextPutOK) {
             if (canSubmitRequests <= 0) {
                 log.warn("[NOTIFYME]TransientStorePool is not enough, so create mapped file error, " +
-                    "RequestQueueSize : {}, StorePoolSize: {}", this.requestQueue.size(), this.messageStore.getTransientStorePool().remainBufferNumbs());
+                    "RequestQueueSize : {}, StorePoolSize: {}", this.requestQueue.size(), this.messageStore.getTransientStorePool().availableBufferNums());
                 this.requestTable.remove(nextFilePath);
                 return null;
             }
@@ -79,7 +79,7 @@ public class AllocateMappedFileService extends ServiceThread {
         if (nextNextPutOK) {
             if (canSubmitRequests <= 0) {
                 log.warn("[NOTIFYME]TransientStorePool is not enough, so skip preallocate mapped file, " +
-                    "RequestQueueSize : {}, StorePoolSize: {}", this.requestQueue.size(), this.messageStore.getTransientStorePool().remainBufferNumbs());
+                    "RequestQueueSize : {}, StorePoolSize: {}", this.requestQueue.size(), this.messageStore.getTransientStorePool().availableBufferNums());
                 this.requestTable.remove(nextNextFilePath);
             } else {
                 boolean offerOK = this.requestQueue.offer(nextNextReq);

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

@@ -1445,7 +1445,7 @@ public class DefaultMessageStore implements MessageStore {
     }
 
     public int remainTransientStoreBufferNumbs() {
-        return this.transientStorePool.remainBufferNumbs();
+        return this.transientStorePool.availableBufferNums();
     }
 
     @Override

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

@@ -80,7 +80,7 @@ public class TransientStorePool {
         return buffer;
     }
 
-    public int remainBufferNumbs() {
+    public int availableBufferNums() {
         if (storeConfig.isTransientStorePoolEnable()) {
             return availableBuffers.size();
         }