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https://issues.apache.org/jira/browse/HDFS-8959?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14713449#comment-14713449
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Hadoop QA commented on HDFS-8959:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:red}-1{color} | pre-patch | 19m 36s | Pre-patch trunk has 6 extant
Findbugs (version 3.0.0) warnings. |
| {color:green}+1{color} | @author | 0m 0s | The patch does not contain any
@author tags. |
| {color:green}+1{color} | tests included | 0m 0s | The patch appears to
include 2 new or modified test files. |
| {color:red}-1{color} | javac | 1m 38s | The patch appears to cause the
build to fail. |
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|| Subsystem || Report/Notes ||
| Patch URL |
http://issues.apache.org/jira/secure/attachment/12752475/HDFS-8959-00.patch |
| Optional Tests | javadoc javac unit findbugs checkstyle |
| git revision | trunk / a4d9acc |
| Pre-patch Findbugs warnings |
https://builds.apache.org/job/PreCommit-HDFS-Build/12133/artifact/patchprocess/trunkFindbugsWarningshadoop-hdfs.html
|
| Pre-patch Findbugs warnings |
https://builds.apache.org/job/PreCommit-HDFS-Build/12133/artifact/patchprocess/trunkFindbugsWarningshadoop-hdfs-client.html
|
| Console output |
https://builds.apache.org/job/PreCommit-HDFS-Build/12133/console |
This message was automatically generated.
> Provide an iterator-based API for listing all the snapshottable directories
> ---------------------------------------------------------------------------
>
> Key: HDFS-8959
> URL: https://issues.apache.org/jira/browse/HDFS-8959
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Rakesh R
> Assignee: Rakesh R
> Attachments: HDFS-8959-00.patch
>
>
> Presently {{DistributedFileSystem#getSnapshottableDirListing()}} is sending
> all the {{SnapshottableDirectoryStatus[]}} array to the clients. Now the
> client should have enough space to hold it in memory. There could be chance
> that the client JVMs running out of memory because of this. Also, some time
> back there was a
> [comment|https://issues.apache.org/jira/browse/HDFS-8643?focusedCommentId=14658800&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14658800]
> about RPC packet limitation and a large number of snapshot list can again
> cause issues.
> I believe iterator based {{DistributedFileSystem#listSnapshottableDirs()}}
> API would be a good addition!
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