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https://issues.apache.org/jira/browse/HADOOP-16107?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16767003#comment-16767003
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Steve Loughran commented on HADOOP-16107:
-----------------------------------------
checkstyle is line length in a test
{code}
./hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/TestLocalFileSystem.java:924:
final Path file = new Path(TEST_ROOT_DIR,
"testByteCountersThroughBuilders");: Line is longer than 80 characters (found
81). [LineLength]
{code}
javac is an unavoidable deprecation use
{code}
[WARNING]
/testptch/hadoop/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/TestLocalFileSystem.java:[789,43]
[deprecation] getAllStatistics() in FileSystem has been deprecated
{code}
> LocalFileSystem doesn't wrap all create() or new builder calls; may skip CRC
> logic
> ----------------------------------------------------------------------------------
>
> Key: HADOOP-16107
> URL: https://issues.apache.org/jira/browse/HADOOP-16107
> Project: Hadoop Common
> Issue Type: Bug
> Components: fs
> Affects Versions: 3.0.3, 3.3.0
> Reporter: Steve Loughran
> Assignee: Steve Loughran
> Priority: Blocker
> Attachments: HADOOP-16107-001.patch
>
>
> LocalFS is a subclass of filterFS, but overrides create and open so that
> checksums are created and read.
> MAPREDUCE-7184 has thrown up that the new builder openFile() call is being
> forwarded to the innerFS without CRC checking. Reviewing/fixing that has
> shown that some of the create methods aren't being correctly wrapped, so not
> generating CRCs
> * createFile() builder
> The following create calls
> {code}
> public FSDataOutputStream createNonRecursive(final Path f,
> final FsPermission permission,
> final EnumSet<CreateFlag> flags,
> final int bufferSize,
> final short replication,
> final long blockSize,
> final Progressable progress) throws IOException;
> public FSDataOutputStream create(final Path f,
> final FsPermission permission,
> final EnumSet<CreateFlag> flags,
> final int bufferSize,
> final short replication,
> final long blockSize,
> final Progressable progress,
> final Options.ChecksumOpt checksumOpt) throws IOException {
> return super.create(f, permission, flags, bufferSize, replication,
> blockSize, progress, checksumOpt);
> }
> {code}
> This means that applications using these methods, directly or indirectly to
> create files aren't actually generating checksums.
> Fix: implement these methods & relay to local create calls, not to the inner
> FS.
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