Commit ba64b12670f7b2c9ce079f8898f4601689a51def in flume's branch refs/heads/trunk from Lior Zeno
[ https://git-wip-us.apache.org/repos/asf?p=flume.git;h=ba64b12 ]
FLUME-2950. ReliableSpoolingFileEventReader.rollCurrentFile is broken
FLUME-2939 introduced a Java 7 API (nio.file) to
ReliableSpoolingFileEventReader. However, the committed patch breaks
rollCurrentFile() on Windows machines. File rename might be not atomic,
in such cases, and under the assumption that the rolled file and the
current file store the same data, Flume only logs a warning and does not
assume that the user broke the contract that the spooling directory
In order to determine whether the files store the same data, we used the
com.google.common.io.Files.equal() method. However,
java.nio.file.Files.isSameFile() which has different semantics.
Consequently, this relaxation does not hold anymore. In addition,
fails. This patch brings back the old check using Files.equal().
(Lior Zeno via Mike Percy)