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https://issues.apache.org/jira/browse/HADOOP-19667?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18016568#comment-18016568
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ASF GitHub Bot commented on HADOOP-19667:
-----------------------------------------
hadoop-yetus commented on PR #7907:
URL: https://github.com/apache/hadoop/pull/7907#issuecomment-3228575609
:confetti_ball: **+1 overall**
| Vote | Subsystem | Runtime | Logfile | Comment |
|:----:|----------:|--------:|:--------:|:-------:|
| +0 :ok: | reexec | 14m 55s | | 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: | markdownlint | 0m 0s | | markdownlint was not available.
|
| +1 :green_heart: | @author | 0m 0s | | The patch does not contain
any @author tags. |
|||| _ trunk Compile Tests _ |
| +1 :green_heart: | mvninstall | 40m 25s | | trunk passed |
| +1 :green_heart: | mvnsite | 1m 19s | | trunk passed |
| +1 :green_heart: | shadedclient | 77m 7s | | branch has no errors
when building and testing our client artifacts. |
|||| _ Patch Compile Tests _ |
| +1 :green_heart: | mvninstall | 1m 4s | | the patch passed |
| +1 :green_heart: | blanks | 0m 0s | | The patch has no blanks
issues. |
| +1 :green_heart: | mvnsite | 1m 9s | | the patch passed |
| +1 :green_heart: | shadedclient | 39m 27s | | patch has no errors
when building and testing our client artifacts. |
|||| _ Other Tests _ |
| +1 :green_heart: | asflicense | 0m 39s | | The patch does not
generate ASF License warnings. |
| | | 134m 51s | | |
| Subsystem | Report/Notes |
|----------:|:-------------|
| Docker | ClientAPI=1.51 ServerAPI=1.51 base:
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7907/1/artifact/out/Dockerfile
|
| GITHUB PR | https://github.com/apache/hadoop/pull/7907 |
| JIRA Issue | HADOOP-19667 |
| Optional Tests | dupname asflicense mvnsite codespell detsecrets
markdownlint |
| uname | Linux 04003553fdc2 5.15.0-143-generic #153-Ubuntu SMP Fri Jun 13
19:10:45 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | dev-support/bin/hadoop.sh |
| git revision | trunk / ce5422f5a2696efe7d65ae74ebcb3413fe33abde |
| Max. process+thread count | 667 (vs. ulimit of 5500) |
| 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-7907/1/console |
| versions | git=2.25.1 maven=3.6.3 |
| Powered by | Apache Yetus 0.14.0 https://yetus.apache.org |
This message was automatically generated.
> Clarify legal value constraints for hadoop.security.crypto.buffer.size
> (min=512; floor to cipher block size)
> ------------------------------------------------------------------------------------------------------------
>
> Key: HADOOP-19667
> URL: https://issues.apache.org/jira/browse/HADOOP-19667
> Project: Hadoop Common
> Issue Type: Bug
> Affects Versions: 2.8.5
> Reporter: AMC-team
> Priority: Major
> Labels: pull-request-available
>
> In core-default.xml, the property hadoop.security.crypto.buffer.size is
> currently documented as “The buffer size used by CryptoInputStream and
> CryptoOutputStream.” It does not specify the legal value constraints.
> {code:java}
> <property>
> <name>hadoop.security.crypto.buffer.size</name>
> <value>8192</value>
> <description>The buffer size used by CryptoInputStream and
> CryptoOutputStream. </description>
> </property> {code}
> The runtime enforces two hidden constraints that are not documented:
> 1. Minimum value is 512 bytes. Values below 512 cause
> IllegalArgumentException at stream construction time.
> 2. Block-size flooring: The effective buffer size is floored to a multiple of
> the cipher algorithm’s block size (e.g., 16 bytes for AES/CTR/NoPadding).
> As a result, users may be surprised that:
> 1. Setting a value like 4100 results in an actual capacity of 4096.
> 2. Setting values <512 fails fast with IllegalArgumentException.
> *Expected*
> core-default.xml (and user-facing docs) should explicitly document:
> 1. Minimum legal value: 512 bytes.
> 2. The effective value is floored to the nearest multiple of the cipher
> algorithm block size (e.g., 16 for AES).
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