dzcxzl created HDFS-15472:
-----------------------------
Summary: Erasure Coding: Support fallback read when zero copy is
not supported
Key: HDFS-15472
URL: https://issues.apache.org/jira/browse/HDFS-15472
Project: Hadoop HDFS
Issue Type: Bug
Reporter: dzcxzl
[HDFS-8203|https://issues.apache.org/jira/browse/HDFS-8203]
ec does not support zeor copy read, but currently does not support fallback
read, it will throw an exception.
{code:java}
Caused by: java.lang.UnsupportedOperationException: Not support enhanced byte
buffer access.
at
org.apache.hadoop.hdfs.DFSStripedInputStream.read(DFSStripedInputStream.java:524)
at org.apache.hadoop.fs.FSDataInputStream.read(FSDataInputStream.java:188)
at
org.apache.hadoop.hive.shims.ZeroCopyShims$ZeroCopyAdapter.readBuffer(ZeroCopyShims.java:79)
{code}
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