[iotdb] branch rel/0.11 updated: handle false positive cases of tsfile bloom filter (#3472)

[qiaojialin]

This is an automated email from the ASF dual-hosted git repository.

qiaojialin pushed a commit to branch rel/0.11
in repository https://gitbox.apache.org/repos/asf/iotdb.git


The following commit(s) were added to refs/heads/rel/0.11 by this push:
     new b56497f  handle false positive cases of tsfile bloom filter (#3472)
b56497f is described below

commit b56497f4d1699169e8628198721285f37039892c
Author: Steve Yurong Su (宇荣) <r...@apache.org>
AuthorDate: Tue Jun 29 06:13:21 2021 -0500

    handle false positive cases of tsfile bloom filter (#3472)
---
 .../main/java/org/apache/iotdb/tsfile/read/TsFileSequenceReader.java  | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git 
a/tsfile/src/main/java/org/apache/iotdb/tsfile/read/TsFileSequenceReader.java 
b/tsfile/src/main/java/org/apache/iotdb/tsfile/read/TsFileSequenceReader.java
index c74ca9e..f438fe6 100644
--- 
a/tsfile/src/main/java/org/apache/iotdb/tsfile/read/TsFileSequenceReader.java
+++ 
b/tsfile/src/main/java/org/apache/iotdb/tsfile/read/TsFileSequenceReader.java
@@ -375,7 +375,7 @@ public class TsFileSequenceReader implements AutoCloseable {
     Pair<MetadataIndexEntry, Long> metadataIndexPair =
         getMetadataAndEndOffset(deviceMetadataIndexNode, path.getDevice(), 
INTERNAL_DEVICE, true);
     if (metadataIndexPair == null) {
-      return null;
+      return Collections.emptyList();
     }
     ByteBuffer buffer = readData(metadataIndexPair.left.getOffset(), 
metadataIndexPair.right);
     MetadataIndexNode metadataIndexNode = deviceMetadataIndexNode;
@@ -395,7 +395,7 @@ public class TsFileSequenceReader implements AutoCloseable {
               false);
     }
     if (metadataIndexPair == null) {
-      return null;
+      return Collections.emptyList();
     }
     List<TimeseriesMetadata> timeseriesMetadataList = new ArrayList<>();
     buffer = readData(metadataIndexPair.left.getOffset(), 
metadataIndexPair.right);