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https://issues.apache.org/jira/browse/HDFS-17813?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18072931#comment-18072931
]
ASF GitHub Bot commented on HDFS-17813:
---------------------------------------
hadoop-yetus commented on PR #8313:
URL: https://github.com/apache/hadoop/pull/8313#issuecomment-4231193480
:confetti_ball: **+1 overall**
| Vote | Subsystem | Runtime | Logfile | Comment |
|:----:|----------:|--------:|:--------:|:-------:|
| +0 :ok: | reexec | 0m 32s | | 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.
|
| +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 1 new or modified test files. |
|||| _ trunk Compile Tests _ |
| +1 :green_heart: | mvninstall | 40m 52s | | trunk passed |
| +1 :green_heart: | compile | 1m 48s | | trunk passed with JDK
Ubuntu-21.0.10+7-Ubuntu-124.04 |
| +1 :green_heart: | compile | 1m 50s | | trunk passed with JDK
Ubuntu-17.0.18+8-Ubuntu-124.04.1 |
| +1 :green_heart: | checkstyle | 1m 49s | | trunk passed |
| +1 :green_heart: | mvnsite | 1m 59s | | trunk passed |
| +1 :green_heart: | javadoc | 1m 31s | | trunk passed with JDK
Ubuntu-21.0.10+7-Ubuntu-124.04 |
| +1 :green_heart: | javadoc | 1m 32s | | trunk passed with JDK
Ubuntu-17.0.18+8-Ubuntu-124.04.1 |
| +1 :green_heart: | spotbugs | 4m 9s | | trunk passed |
| +1 :green_heart: | shadedclient | 31m 20s | | branch has no errors
when building and testing our client artifacts. |
|||| _ Patch Compile Tests _ |
| +1 :green_heart: | mvninstall | 1m 24s | | the patch passed |
| +1 :green_heart: | compile | 1m 15s | | the patch passed with JDK
Ubuntu-21.0.10+7-Ubuntu-124.04 |
| +1 :green_heart: | javac | 1m 15s | | the patch passed |
| +1 :green_heart: | compile | 1m 19s | | the patch passed with JDK
Ubuntu-17.0.18+8-Ubuntu-124.04.1 |
| +1 :green_heart: | javac | 1m 19s | | the patch passed |
| +1 :green_heart: | blanks | 0m 0s | | The patch has no blanks
issues. |
| +1 :green_heart: | checkstyle | 1m 16s | | the patch passed |
| +1 :green_heart: | mvnsite | 1m 28s | | the patch passed |
| +1 :green_heart: | javadoc | 0m 57s | | the patch passed with JDK
Ubuntu-21.0.10+7-Ubuntu-124.04 |
| +1 :green_heart: | javadoc | 1m 0s | | the patch passed with JDK
Ubuntu-17.0.18+8-Ubuntu-124.04.1 |
| +1 :green_heart: | spotbugs | 3m 52s | | the patch passed |
| +1 :green_heart: | shadedclient | 30m 35s | | patch has no errors
when building and testing our client artifacts. |
|||| _ Other Tests _ |
| +1 :green_heart: | unit | 216m 7s | | hadoop-hdfs in the patch
passed. |
| +1 :green_heart: | asflicense | 0m 45s | | The patch does not
generate ASF License warnings. |
| | | 345m 6s | | |
| Subsystem | Report/Notes |
|----------:|:-------------|
| Docker | ClientAPI=1.54 ServerAPI=1.54 base:
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-8313/5/artifact/out/Dockerfile
|
| GITHUB PR | https://github.com/apache/hadoop/pull/8313 |
| Optional Tests | dupname asflicense compile javac javadoc mvninstall
mvnsite unit shadedclient spotbugs checkstyle codespell detsecrets |
| uname | Linux 1e6be63a5115 5.15.0-173-generic #183-Ubuntu SMP Fri Mar 6
13:29:34 UTC 2026 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | dev-support/bin/hadoop.sh |
| git revision | trunk / 156aeb2a58b67bc8d2b63a375d32675c810e259c |
| Default Java | Ubuntu-17.0.18+8-Ubuntu-124.04.1 |
| Multi-JDK versions |
/usr/lib/jvm/java-21-openjdk-amd64:Ubuntu-21.0.10+7-Ubuntu-124.04
/usr/lib/jvm/java-17-openjdk-amd64:Ubuntu-17.0.18+8-Ubuntu-124.04.1 |
| Test Results |
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-8313/5/testReport/ |
| Max. process+thread count | 3488 (vs. ulimit of 10000) |
| modules | C: hadoop-hdfs-project/hadoop-hdfs U:
hadoop-hdfs-project/hadoop-hdfs |
| Console output |
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-8313/5/console |
| versions | git=2.43.0 maven=3.9.11 spotbugs=4.9.7 |
| Powered by | Apache Yetus 0.14.1 https://yetus.apache.org |
This message was automatically generated.
> NameCache promote wrong name to cache map
> -----------------------------------------
>
> Key: HDFS-17813
> URL: https://issues.apache.org/jira/browse/HDFS-17813
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: namenode
> Reporter: khazhen
> Priority: Minor
> Labels: pull-request-available
>
> The NameCache class is used to cache frequently used names in namenode, it
> promotes a name used more than useThreshold to the cache, the promote logic:
> {code:java}
> K put(final K name) {
> K internal = cache.get(name);
> if (internal != null) {
> lookups++;
> return internal;
> }
> // Track the usage count only during initialization
> if (!initialized) {
> UseCount useCount = transientMap.get(name);
> if (useCount != null) {
> useCount.increment();
> if (useCount.get() >= useThreshold) {
> promote(name); // name got promoted
> }
> return useCount.value;
> }
> useCount = new UseCount(name);
> transientMap.put(name, useCount);
> }
> return null;
> } {code}
> When promoting, the cache stores the `name` parameter from put() instead of
> the existing useCount.value. This causes the returned value to change after a
> name is promoted, resulting in memory duplication.
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