address some comments

Author: LiebingYu

fluss-server/src/main/java/org/apache/fluss/server/log/LogLoader.java

@@ -195,6 +195,8 @@ private Tuple2<Long, Long> recoverLog() throws IOException {
                                 logSegments.getTableBucket(),
                                 startOffset);
                         truncatedBytes = segment.truncateTo(startOffset);
+                    } else {
+                        throw e;
                     }
                 }
 

fluss-server/src/test/java/org/apache/fluss/server/log/LogLoaderTest.java

@@ -143,8 +143,8 @@ void testCorruptIndexRebuild() throws Exception {
         }
         assertThat(numRecords).isEqualTo(logTablet.localLogEndOffset());
         for (int i = 0; i < numRecords; i++) {
-            assertThat(i)
-                    .isEqualTo(logTablet.lookupOffsetForTimestamp(clock.milliseconds() + i * 10));
+            assertThat(logTablet.lookupOffsetForTimestamp(clock.milliseconds() + i * 10))
+                    .isEqualTo(i);
         }
         logTablet.close();
     }
@@ -221,8 +221,8 @@ void testIndexRebuild() throws Exception {
         assertThat(logTablet.logSegments().get(0).offsetIndex().entries() > 0).isTrue();
         assertThat(logTablet.logSegments().get(0).timeIndex().entries() > 0).isTrue();
         for (int i = 0; i < numRecords; i++) {
-            assertThat(i)
-                    .isEqualTo(logTablet.lookupOffsetForTimestamp(clock.milliseconds() + i * 10));
+            assertThat(logTablet.lookupOffsetForTimestamp(clock.milliseconds() + i * 10))
+                    .isEqualTo(i);
         }
         logTablet.close();
     }