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HDFS-15080. Fix the issue in reading persistent memory cached data with an offset. Contributed by Feilong He.

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(cherry picked from commit 7030722e5d9f376245a9ab0a6a883538b6c55f82)
This commit is contained in:
Rakesh Radhakrishnan 2020-01-08 14:25:17 +05:30
parent 3e17b471b6
commit d7f9a90e2c
1 changed files with 1 additions and 1 deletions
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hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/impl/FsDatasetImpl.java
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@ -821,7 +821,7 @@ private InputStream getBlockInputStreamWithCheckingPmemCache(
if (addr != -1) { if (addr != -1) {
LOG.debug("Get InputStream by cache address."); LOG.debug("Get InputStream by cache address.");
return FsDatasetUtil.getDirectInputStream( return FsDatasetUtil.getDirectInputStream(
addr, info.getBlockDataLength()); addr + seekOffset, info.getBlockDataLength() - seekOffset);
} }
LOG.debug("Get InputStream by cache file path."); LOG.debug("Get InputStream by cache file path.");
return FsDatasetUtil.getInputStreamAndSeek( return FsDatasetUtil.getInputStreamAndSeek(