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https://issues.apache.org/jira/browse/HDFS-14083?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16733710#comment-16733710
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Hadoop QA commented on HDFS-14083:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m
15s{color} | {color:blue} Docker mode activated. {color} |
|| || || || {color:brown} Prechecks {color} ||
| {color:green}+1{color} | {color:green} @author {color} | {color:green} 0m
0s{color} | {color:green} The patch does not contain any @author tags. {color} |
| {color:red}-1{color} | {color:red} test4tests {color} | {color:red} 0m
0s{color} | {color:red} The patch doesn't appear to include any new or modified
tests. Please justify why no new tests are needed for this patch. Also please
list what manual steps were performed to verify this patch. {color} |
|| || || || {color:brown} trunk Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 19m
2s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m
29s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m
20s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green}
32m 0s{color} | {color:green} branch has no errors when building and testing
our client artifacts. {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 0m
16s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m
29s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} cc {color} | {color:green} 1m
29s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 1m
29s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m
16s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green} 0m
0s{color} | {color:green} The patch has no whitespace issues. {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green}
12m 30s{color} | {color:green} patch has no errors when building and testing
our client artifacts. {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 5m
25s{color} | {color:green} hadoop-hdfs-native-client in the patch passed.
{color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m
25s{color} | {color:green} The patch does not generate ASF License warnings.
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 53m 39s{color} |
{color:black} {color} |
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|| Subsystem || Report/Notes ||
| Docker | Client=17.05.0-ce Server=17.05.0-ce Image:yetus/hadoop:8f97d6f |
| JIRA Issue | HDFS-14083 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12953685/HDFS-14083.007.patch |
| Optional Tests | dupname asflicense compile cc mvnsite javac unit |
| uname | Linux 26bb3b64c629 4.4.0-139-generic #165-Ubuntu SMP Wed Oct 24
10:58:50 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/patchprocess/precommit/personality/provided.sh |
| git revision | trunk / dfceffa |
| maven | version: Apache Maven 3.3.9 |
| Default Java | 1.8.0_191 |
| Test Results |
https://builds.apache.org/job/PreCommit-HDFS-Build/25909/testReport/ |
| Max. process+thread count | 412 (vs. ulimit of 10000) |
| modules | C: hadoop-hdfs-project/hadoop-hdfs-native-client U:
hadoop-hdfs-project/hadoop-hdfs-native-client |
| Console output |
https://builds.apache.org/job/PreCommit-HDFS-Build/25909/console |
| Powered by | Apache Yetus 0.8.0 http://yetus.apache.org |
This message was automatically generated.
> libhdfs logs errors when opened FS doesn't support ByteBufferReadable
> ---------------------------------------------------------------------
>
> Key: HDFS-14083
> URL: https://issues.apache.org/jira/browse/HDFS-14083
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: native, test
> Affects Versions: 3.0.3
> Reporter: Pranay Singh
> Assignee: Pranay Singh
> Priority: Minor
> Attachments: HADOOP-15928.001.patch, HADOOP-15928.002.patch,
> HDFS-14083.003.patch, HDFS-14083.004.patch, HDFS-14083.005.patch,
> HDFS-14083.006.patch, HDFS-14083.007.patch
>
>
> Problem:
> ------------
> There is excessive error logging when a file is opened by libhdfs
> (DFSClient/HDFS) in S3 environment, this issue is caused because buffered
> read is not supported in S3 environment, HADOOP-14603 "S3A input stream to
> support ByteBufferReadable"
> The following message is printed repeatedly in the error log/ to STDERR:
> {code}
> --------------------------------------------------------------------------------------------------
> UnsupportedOperationException: Byte-buffer read unsupported by input
> streamjava.lang.UnsupportedOperationException: Byte-buffer read unsupported
> by input stream
> at
> org.apache.hadoop.fs.FSDataInputStream.read(FSDataInputStream.java:150)
> {code}
> h3. Root cause
> After investigating the issue, it appears that the above exception is printed
> because
> when a file is opened via {{hdfsOpenFileImpl()}} calls {{readDirect()}} which
> is hitting this
> exception.
> h3. Fix:
> Since the hdfs client is not initiating the byte buffered read but is
> happening in a implicit manner, we should not be generating the error log
> during open of a file.
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