[ https://issues.apache.org/jira/browse/HDFS-5762?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Colin Patrick McCabe updated HDFS-5762: --------------------------------------- Resolution: Fixed Fix Version/s: 2.4.0 Status: Resolved (was: Patch Available) committed to 2.4 and trunk. Thanks, Andrew. P.S. This bug was introduced by HDFS-5634, which was only committed to 2.4 and trunk. > BlockReaderLocal doesn't return -1 on EOF when doing zero-length reads > ---------------------------------------------------------------------- > > Key: HDFS-5762 > URL: https://issues.apache.org/jira/browse/HDFS-5762 > Project: Hadoop HDFS > Issue Type: Bug > Affects Versions: 2.4.0 > Reporter: Colin Patrick McCabe > Assignee: Colin Patrick McCabe > Fix For: 2.4.0 > > Attachments: HDFS-5762.001.patch, HDFS-5762.002.patch > > > Unlike the other block readers, BlockReaderLocal currently doesn't return -1 > on EOF when doing zero-length reads. This behavior, in turn, propagates to > the DFSInputStream. BlockReaderLocal should do this, so that client can > determine whether the file is at an end by doing a zero-length read and > checking for -1. > One place this shows up is in libhdfs, which does such a 0-length read to > determine if direct (i.e., ByteBuffer) reads are supported. -- This message was sent by Atlassian JIRA (v6.1.5#6160)