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https://issues.apache.org/jira/browse/HADOOP-15019?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18103701#comment-18103701
]
ASF GitHub Bot commented on HADOOP-15019:
-----------------------------------------
hadoop-yetus commented on PR #8670:
URL: https://github.com/apache/hadoop/pull/8670#issuecomment-5254739230
:confetti_ball: **+1 overall**
| Vote | Subsystem | Runtime | Logfile | Comment |
|:----:|----------:|--------:|:--------:|:-------:|
| +0 :ok: | reexec | 0m 35s | | Docker mode activated. |
|||| _ Prechecks _ |
| +1 :green_heart: | dupname | 0m 0s | | No case conflicting files
found. |
| +0 :ok: | codespell | 0m 0s | | codespell was not available. |
| +0 :ok: | detsecrets | 0m 0s | | detect-secrets was not available.
|
| +0 :ok: | shelldocs | 0m 0s | | Shelldocs was not available. |
| +1 :green_heart: | @author | 0m 0s | | The patch does not contain
any @author tags. |
| +1 :green_heart: | test4tests | 0m 0s | | The patch appears to
include 2 new or modified test files. |
|||| _ trunk Compile Tests _ |
| +1 :green_heart: | mvninstall | 44m 43s | | trunk passed |
| +1 :green_heart: | mvnsite | 1m 57s | | trunk passed |
| +1 :green_heart: | shadedclient | 27m 43s | | branch has no errors
when building and testing our client artifacts. |
|||| _ Patch Compile Tests _ |
| +1 :green_heart: | mvninstall | 1m 12s | | the patch passed |
| +1 :green_heart: | blanks | 0m 0s | | The patch has no blanks
issues. |
| +1 :green_heart: | mvnsite | 1m 25s | | the patch passed |
| +1 :green_heart: | shellcheck | 0m 4s | | No new issues. |
| +1 :green_heart: | shadedclient | 27m 0s | | patch has no errors
when building and testing our client artifacts. |
|||| _ Other Tests _ |
| +1 :green_heart: | unit | 1m 53s | | hadoop-common in the patch
passed. |
| +1 :green_heart: | asflicense | 0m 35s | | The patch does not
generate ASF License warnings. |
| | | 109m 52s | | |
| Subsystem | Report/Notes |
|----------:|:-------------|
| Docker | ClientAPI=1.55 ServerAPI=1.55 base:
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-8670/1/artifact/out/Dockerfile
|
| GITHUB PR | https://github.com/apache/hadoop/pull/8670 |
| Optional Tests | dupname asflicense mvnsite unit codespell detsecrets
shellcheck shelldocs |
| uname | Linux 6ca4040a72f8 5.15.0-186-generic #196-Ubuntu SMP Sat Jun 20
16:09:34 UTC 2026 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | dev-support/bin/hadoop.sh |
| git revision | trunk / fb10cf81d8d59417c5ccd2c8955c102fdd8dc55e |
| Test Results |
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-8670/1/testReport/ |
| Max. process+thread count | 615 (vs. ulimit of 10000) |
| modules | C: hadoop-common-project/hadoop-common U:
hadoop-common-project/hadoop-common |
| Console output |
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-8670/1/console |
| versions | git=2.43.0 maven=3.9.15 shellcheck=0.9.0 |
| Powered by | Apache Yetus 0.14.1 https://yetus.apache.org |
This message was automatically generated.
> Hadoop shell script classpath de-duping ignores HADOOP_USER_CLASSPATH_FIRST
> ----------------------------------------------------------------------------
>
> Key: HADOOP-15019
> URL: https://issues.apache.org/jira/browse/HADOOP-15019
> Project: Hadoop Common
> Issue Type: Bug
> Components: bin
> Reporter: Philip Martin
> Priority: Major
> Labels: pull-request-available
>
> If a user sets {{HADOOP_USER_CLASSPATH_FIRST=true}} and furthermore includes
> a directory that's already in Hadoop's classpath via {{HADOOP_CLASSPATH}},
> that directory will appear later than it should in the eventual $CLASSPATH. I
> believe this is because the de-duping at
> https://github.com/apache/hadoop/blob/cbc632d9abf08c56a7fc02be51b2718af30bad28/hadoop-common-project/hadoop-common/src/main/bin/hadoop-functions.sh#L1200
> is ignoring the "before/after" parameter.
> My way of reproduction, first build the following trivial Java program:
> {code}
> $cat Test.java
> public class Test {
> public static void main(String[]args) {
> System.out.println(System.getenv().get("CLASSPATH"));
> }
> }
> $javac Test.java
> $jar cf test.jar Test.class
> {code}
> With that, if you happen to have an entry in HADOOP_CLASSPATH that matches
> what Hadoop would produce, you'll find the ordering not honored. It's easiest
> to reproduce this with a match for HADOOP_CONF_DIR, as in the second case
> below:
> {code}
> # As you'd expect, /usr/share is first!
> $HADOOP_CONF_DIR=/etc HADOOP_USER_CLASSPATH_FIRST="true"
> HADOOP_CLASSPATH=/usr/share:/tmp:/bin bin/hadoop jar test.jar Test | tr ':'
> '\n' | grep -n . | grep '/usr/share'
> WARNING: log4j.properties is not found. HADOOP_CONF_DIR may be incomplete.
> 1:/usr/share
> # Surprise! /usr/share is now in the 3rd line, even thought it was first in
> HADOOP_CLASSPATH.
> $HADOOP_CONF_DIR=/usr/share HADOOP_USER_CLASSPATH_FIRST="true"
> HADOOP_CLASSPATH=/usr/share:/tmp:/bin bin/hadoop jar test.jar Test | tr ':'
> '\n' | grep -n . | grep '/usr/share'
> WARNING: log4j.properties is not found. HADOOP_CONF_DIR may be incomplete.
> 3:/usr/share
> {code}
> To re-iterate, what's surprising is that you can make an entry that's first
> in HADOOP_USER_CLASSPATH show up not first in the resulting classpath.
> I ran into this configuring {{bin/hive}} with a confdir that was being used
> for both HDFS and Hive, and flailing as to why my {{log4j2.properties}}
> wasn't being read. The one in my conf dir was lower in my classpath than one
> bundled in some Hive jar.
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