diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/erasurecode/StripedWriter.java b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/erasurecode/StripedWriter.java index 762506cfdae..c16b14a2113 100644 --- a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/erasurecode/StripedWriter.java +++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/erasurecode/StripedWriter.java @@ -296,7 +296,8 @@ class StripedWriter { */ void clearBuffers() { for (StripedBlockWriter writer : writers) { - ByteBuffer targetBuffer = writer.getTargetBuffer(); + ByteBuffer targetBuffer = + writer != null ? writer.getTargetBuffer() : null; if (targetBuffer != null) { targetBuffer.clear(); } @@ -305,7 +306,8 @@ class StripedWriter { void close() { for (StripedBlockWriter writer : writers) { - ByteBuffer targetBuffer = writer.getTargetBuffer(); + ByteBuffer targetBuffer = + writer != null ? writer.getTargetBuffer() : null; if (targetBuffer != null) { reconstructor.freeBuffer(targetBuffer); writer.freeTargetBuffer(); @@ -313,7 +315,9 @@ class StripedWriter { } for (int i = 0; i < targets.length; i++) { - writers[i].close(); + if (writers[i] != null) { + writers[i].close(); + } } } }