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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-15229) Add FileSystem builder-based openFile() API to match createFile()
Date Mon, 05 Nov 2018 12:28:01 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-15229?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16675070#comment-16675070
] 

Hadoop QA commented on HADOOP-15229:
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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 21s{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} 27m 33s{color}
| {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 17m  5s{color} |
{color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 58s{color}
| {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  1m 22s{color} |
{color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green} 14m 37s{color}
| {color:green} branch has no errors when building and testing our client artifacts. {color}
|
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  1m 36s{color} |
{color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  1m  1s{color} |
{color:green} trunk passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  0m 47s{color}
| {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 16m 12s{color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 16m 12s{color} | {color:green}
the patch passed {color} |
| {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange}  0m 54s{color}
| {color:orange} hadoop-common-project/hadoop-common: The patch generated 6 new + 76 unchanged
- 0 fixed = 82 total (was 76) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  1m 15s{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 5 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} shadedclient {color} | {color:green} 12m  1s{color}
| {color:green} patch has no errors when building and testing our client artifacts. {color}
|
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red}  1m 51s{color} | {color:red}
hadoop-common-project/hadoop-common generated 1 new + 0 unchanged - 0 fixed = 1 total (was
0) {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 58s{color} |
{color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:red}-1{color} | {color:red} unit {color} | {color:red}  8m 36s{color} | {color:red}
hadoop-common in the patch failed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 45s{color}
| {color:green} The patch does not generate ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black}107m 23s{color} | {color:black}
{color} |
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|| Reason || Tests ||
| FindBugs | module:hadoop-common-project/hadoop-common |
|  |  Dead store to afs in new org.apache.hadoop.fs.InputStreamBuilder(FileContext, Path)
 At InputStreamBuilder.java:new org.apache.hadoop.fs.InputStreamBuilder(FileContext, Path)
 At InputStreamBuilder.java:[line 65] |
| Failed junit tests | hadoop.fs.TestFilterFileSystem |
|   | hadoop.fs.TestHarFileSystem |
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|| Subsystem || Report/Notes ||
| Docker | Client=17.05.0-ce Server=17.05.0-ce Image:yetus/hadoop:8f97d6f |
| JIRA Issue | HADOOP-15229 |
| JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12946893/HADOOP-15229-001.patch
|
| Optional Tests |  dupname  asflicense  compile  javac  javadoc  mvninstall  mvnsite  unit
 shadedclient  findbugs  checkstyle  |
| uname | Linux 2d44d0f111be 3.13.0-144-generic #193-Ubuntu SMP Thu Mar 15 17:03:53 UTC 2018
x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/patchprocess/precommit/personality/provided.sh |
| git revision | trunk / 15df2e7 |
| maven | version: Apache Maven 3.3.9 |
| Default Java | 1.8.0_181 |
| findbugs | v3.1.0-RC1 |
| checkstyle | https://builds.apache.org/job/PreCommit-HADOOP-Build/15466/artifact/out/diff-checkstyle-hadoop-common-project_hadoop-common.txt
|
| whitespace | https://builds.apache.org/job/PreCommit-HADOOP-Build/15466/artifact/out/whitespace-eol.txt
|
| findbugs | https://builds.apache.org/job/PreCommit-HADOOP-Build/15466/artifact/out/new-findbugs-hadoop-common-project_hadoop-common.html
|
| unit | https://builds.apache.org/job/PreCommit-HADOOP-Build/15466/artifact/out/patch-unit-hadoop-common-project_hadoop-common.txt
|
|  Test Results | https://builds.apache.org/job/PreCommit-HADOOP-Build/15466/testReport/ |
| Max. process+thread count | 1668 (vs. ulimit of 10000) |
| modules | C: hadoop-common-project/hadoop-common U: hadoop-common-project/hadoop-common
|
| Console output | https://builds.apache.org/job/PreCommit-HADOOP-Build/15466/console |
| Powered by | Apache Yetus 0.8.0   http://yetus.apache.org |


This message was automatically generated.



> Add FileSystem builder-based openFile() API to match createFile()
> -----------------------------------------------------------------
>
>                 Key: HADOOP-15229
>                 URL: https://issues.apache.org/jira/browse/HADOOP-15229
>             Project: Hadoop Common
>          Issue Type: New Feature
>          Components: fs, fs/azure, fs/s3
>    Affects Versions: 3.0.0
>            Reporter: Steve Loughran
>            Assignee: Steve Loughran
>            Priority: Major
>         Attachments: HADOOP-15229-001.patch
>
>
> Replicate HDFS-1170 and HADOOP-14365 with an API to open files.
> A key requirement of this is not HDFS, it's to put in the fadvise policy for working
with object stores, where getting the decision to do a full GET and TCP abort on seek vs smaller
GETs is fundamentally different: the wrong option can cost you minutes. S3A and Azure both
have adaptive policies now (first backward seek), but they still don't do it that well.
> Columnar formats (ORC, Parquet) should be able to say "fs.input.fadvise" "random" as
an option when they open files; I can imagine other options too.
> The Builder model of [~eddyxu] is the one to mimic, method for method. Ideally with as
much code reuse as possible



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