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https://issues.apache.org/jira/browse/HDFS-11529?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15973530#comment-15973530
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Hadoop QA commented on HDFS-11529:
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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
42s{color} | {color:blue} Docker mode activated. {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:green}+1{color} | {color:green} mvninstall {color} | {color:green} 13m
20s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m
15s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m
13s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m
13s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 0m
9s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m
13s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} cc {color} | {color:green} 0m
13s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m
13s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m
10s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m
10s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} whitespace {color} | {color:red} 0m
0s{color} | {color:red} The patch has 1 line(s) that end in whitespace. Use git
apply --whitespace=fix <<patch_file>>. Refer https://git-scm.com/docs/git-apply
{color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 0m
32s{color} | {color:green} hadoop-hdfs-native-client in the patch passed.
{color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m
17s{color} | {color:green} The patch does not generate ASF License warnings.
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 17m 11s{color} |
{color:black} {color} |
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|| Subsystem || Report/Notes ||
| Docker | Image:yetus/hadoop:0ac17dc |
| JIRA Issue | HDFS-11529 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12863887/HDFS-11529.003.patch |
| Optional Tests | asflicense compile cc mvnsite javac unit |
| uname | Linux cbb5ec16357e 3.13.0-106-generic #153-Ubuntu SMP Tue Dec 6
15:44:32 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/hadoop/patchprocess/precommit/personality/provided.sh
|
| git revision | trunk / af8e984 |
| Default Java | 1.8.0_121 |
| whitespace |
https://builds.apache.org/job/PreCommit-HDFS-Build/19129/artifact/patchprocess/whitespace-eol.txt
|
| Test Results |
https://builds.apache.org/job/PreCommit-HDFS-Build/19129/testReport/ |
| 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/19129/console |
| Powered by | Apache Yetus 0.5.0-SNAPSHOT http://yetus.apache.org |
This message was automatically generated.
> Add libHDFS API to return last exception
> ----------------------------------------
>
> Key: HDFS-11529
> URL: https://issues.apache.org/jira/browse/HDFS-11529
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: libhdfs
> Affects Versions: 2.6.0
> Reporter: Sailesh Mukil
> Assignee: Sailesh Mukil
> Priority: Critical
> Labels: errorhandling, libhdfs
> Attachments: HDFS-11529.000.patch, HDFS-11529.001.patch,
> HDFS-11529.002.patch, HDFS-11529.003.patch
>
>
> libHDFS uses a table to compare exceptions against and returns a
> corresponding error code to the application in case of an error.
> However, this table is manually populated and many times is disremembered
> when new exceptions are added.
> This causes libHDFS to return EINTERNAL (or Unknown Error(255)) whenever
> these exceptions are hit. These are some examples of exceptions that have
> been observed on an Error(255):
> org.apache.hadoop.ipc.StandbyException (Operation category WRITE is not
> supported in state standby)
> java.io.EOFException: Cannot seek after EOF
> javax.security.sasl.SaslException: GSS initiate failed [Caused by
> GSSException: No valid credentials provided (Mechanism level: Failed to find
> any Kerberos tgt)
> It is of course not possible to have an error code for each and every type of
> exception, so one suggestion of how this can be addressed is by having a call
> such as hdfsGetLastException() that would return the last exception that a
> libHDFS thread encountered. This way, an application may choose to call
> hdfsGetLastException() if it receives EINTERNAL.
> We can make use of the Thread Local Storage to store this information. Also,
> this makes sure that the current functionality is preserved.
> This is a follow up from HDFS-4997.
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