[jira] [Commented] (HDFS-15082) RBF: Check each component length of destination path when add/update mount entry
[ https://issues.apache.org/jira/browse/HDFS-15082?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17109498#comment-17109498 ] Hudson commented on HDFS-15082: --- FAILURE: Integrated in Jenkins build Hadoop-trunk-Commit #18263 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/18263/]) HDFS-15082. RBF: Check each component length of destination path when (ayushsaxena: rev a3809d202300ce39c75e909fbc4640635dc334bc) * (edit) hadoop-hdfs-project/hadoop-hdfs-rbf/src/test/java/org/apache/hadoop/hdfs/server/federation/router/TestRouterMountTable.java * (edit) hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/router/RBFConfigKeys.java * (edit) hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/router/RouterAdminServer.java * (edit) hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/resources/hdfs-rbf-default.xml > RBF: Check each component length of destination path when add/update mount > entry > > > Key: HDFS-15082 > URL: https://issues.apache.org/jira/browse/HDFS-15082 > Project: Hadoop HDFS > Issue Type: Sub-task > Components: rbf >Reporter: Xiaoqiao He >Assignee: Xiaoqiao He >Priority: Major > Fix For: 3.4.0 > > Attachments: HDFS-15082.001.patch, HDFS-15082.002.patch, > HDFS-15082.003.patch, HDFS-15082.004.patch, HDFS-15082.005.patch > > > When add/update mount entry, each component length of destination path could > exceed filesystem path component length limit, reference to > `dfs.namenode.fs-limits.max-component-length` of NameNode. So we should check > each component length of destination path when add/update mount entry at > Router side. -- This message was sent by Atlassian Jira (v8.3.4#803005) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-15082) RBF: Check each component length of destination path when add/update mount entry
[ https://issues.apache.org/jira/browse/HDFS-15082?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17109495#comment-17109495 ] Ayush Saxena commented on HDFS-15082: - Committed to trunk. Thanx [~hexiaoqiao] for the contribution and [~elgoiri] for the review!!! > RBF: Check each component length of destination path when add/update mount > entry > > > Key: HDFS-15082 > URL: https://issues.apache.org/jira/browse/HDFS-15082 > Project: Hadoop HDFS > Issue Type: Sub-task > Components: rbf >Reporter: Xiaoqiao He >Assignee: Xiaoqiao He >Priority: Major > Attachments: HDFS-15082.001.patch, HDFS-15082.002.patch, > HDFS-15082.003.patch, HDFS-15082.004.patch, HDFS-15082.005.patch > > > When add/update mount entry, each component length of destination path could > exceed filesystem path component length limit, reference to > `dfs.namenode.fs-limits.max-component-length` of NameNode. So we should check > each component length of destination path when add/update mount entry at > Router side. -- This message was sent by Atlassian Jira (v8.3.4#803005) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-15082) RBF: Check each component length of destination path when add/update mount entry
[ https://issues.apache.org/jira/browse/HDFS-15082?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17109453#comment-17109453 ] Ayush Saxena commented on HDFS-15082: - v005 LGTM +1 > RBF: Check each component length of destination path when add/update mount > entry > > > Key: HDFS-15082 > URL: https://issues.apache.org/jira/browse/HDFS-15082 > Project: Hadoop HDFS > Issue Type: Sub-task > Components: rbf >Reporter: Xiaoqiao He >Assignee: Xiaoqiao He >Priority: Major > Attachments: HDFS-15082.001.patch, HDFS-15082.002.patch, > HDFS-15082.003.patch, HDFS-15082.004.patch, HDFS-15082.005.patch > > > When add/update mount entry, each component length of destination path could > exceed filesystem path component length limit, reference to > `dfs.namenode.fs-limits.max-component-length` of NameNode. So we should check > each component length of destination path when add/update mount entry at > Router side. -- This message was sent by Atlassian Jira (v8.3.4#803005) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-15082) RBF: Check each component length of destination path when add/update mount entry
[
https://issues.apache.org/jira/browse/HDFS-15082?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17109151#comment-17109151
]
Hadoop QA commented on HDFS-15082:
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[jira] [Commented] (HDFS-15082) RBF: Check each component length of destination path when add/update mount entry
[ https://issues.apache.org/jira/browse/HDFS-15082?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17109120#comment-17109120 ] Xiaoqiao He commented on HDFS-15082: v005 try to fix checkstyle and trigger yetus again. > RBF: Check each component length of destination path when add/update mount > entry > > > Key: HDFS-15082 > URL: https://issues.apache.org/jira/browse/HDFS-15082 > Project: Hadoop HDFS > Issue Type: Sub-task > Components: rbf >Reporter: Xiaoqiao He >Assignee: Xiaoqiao He >Priority: Major > Attachments: HDFS-15082.001.patch, HDFS-15082.002.patch, > HDFS-15082.003.patch, HDFS-15082.004.patch, HDFS-15082.005.patch > > > When add/update mount entry, each component length of destination path could > exceed filesystem path component length limit, reference to > `dfs.namenode.fs-limits.max-component-length` of NameNode. So we should check > each component length of destination path when add/update mount entry at > Router side. -- This message was sent by Atlassian Jira (v8.3.4#803005) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-15082) RBF: Check each component length of destination path when add/update mount entry
[
https://issues.apache.org/jira/browse/HDFS-15082?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17109115#comment-17109115
]
Hadoop QA commented on HDFS-15082:
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[jira] [Commented] (HDFS-15082) RBF: Check each component length of destination path when add/update mount entry
[ https://issues.apache.org/jira/browse/HDFS-15082?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17109076#comment-17109076 ] Xiaoqiao He commented on HDFS-15082: Thanks [~ayushtkn] and [~elgoiri]. v004 try to set separate configuration for Router and set default value to 0 which means not check and keep logic no changes by default. Also add description explicitly at hdfs-rbf-default.xml for end users. Any comments or suggestions are welcome. Thanks. > RBF: Check each component length of destination path when add/update mount > entry > > > Key: HDFS-15082 > URL: https://issues.apache.org/jira/browse/HDFS-15082 > Project: Hadoop HDFS > Issue Type: Sub-task > Components: rbf >Reporter: Xiaoqiao He >Assignee: Xiaoqiao He >Priority: Major > Attachments: HDFS-15082.001.patch, HDFS-15082.002.patch, > HDFS-15082.003.patch, HDFS-15082.004.patch > > > When add/update mount entry, each component length of destination path could > exceed filesystem path component length limit, reference to > `dfs.namenode.fs-limits.max-component-length` of NameNode. So we should check > each component length of destination path when add/update mount entry at > Router side. -- This message was sent by Atlassian Jira (v8.3.4#803005) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-15082) RBF: Check each component length of destination path when add/update mount entry
[ https://issues.apache.org/jira/browse/HDFS-15082?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17101185#comment-17101185 ] Íñigo Goiri commented on HDFS-15082: I would personally add a separate config key. It's is a little work intensive but I think is easier to follow. The default value could refer to the other default. > RBF: Check each component length of destination path when add/update mount > entry > > > Key: HDFS-15082 > URL: https://issues.apache.org/jira/browse/HDFS-15082 > Project: Hadoop HDFS > Issue Type: Sub-task > Components: rbf >Reporter: Xiaoqiao He >Assignee: Xiaoqiao He >Priority: Major > Attachments: HDFS-15082.001.patch, HDFS-15082.002.patch, > HDFS-15082.003.patch > > > When add/update mount entry, each component length of destination path could > exceed filesystem path component length limit, reference to > `dfs.namenode.fs-limits.max-component-length` of NameNode. So we should check > each component length of destination path when add/update mount entry at > Router side. -- This message was sent by Atlassian Jira (v8.3.4#803005) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-15082) RBF: Check each component length of destination path when add/update mount entry
[
https://issues.apache.org/jira/browse/HDFS-15082?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17081664#comment-17081664
]
Ayush Saxena commented on HDFS-15082:
-
Need to find a better place to document, so if somebody starts facing issues
due to this introduction, anyway reaches it easily. Don't think we can document
it at {{hdfs-defaults}}, haven't seen rbf related stuff on any Namenode config.
There are couple of the other ALT's too, we get a new RBF side config, make the
default as -1, which means length won't be checked by default and if the ADMIN
explicitly configures, then we keep this logic.
We can get the values from namenode, but I don't think that is too
straightforward or might not be worth doing.
If none of the above looks better and if everyone is good with this. then just
find a good place to document. :)
[~elgoiri] any thoughts on this, I am not sure but can the present approach be
considered incompatible?
> RBF: Check each component length of destination path when add/update mount
> entry
>
>
> Key: HDFS-15082
> URL: https://issues.apache.org/jira/browse/HDFS-15082
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: rbf
>Reporter: Xiaoqiao He
>Assignee: Xiaoqiao He
>Priority: Major
> Attachments: HDFS-15082.001.patch, HDFS-15082.002.patch,
> HDFS-15082.003.patch
>
>
> When add/update mount entry, each component length of destination path could
> exceed filesystem path component length limit, reference to
> `dfs.namenode.fs-limits.max-component-length` of NameNode. So we should check
> each component length of destination path when add/update mount entry at
> Router side.
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[jira] [Commented] (HDFS-15082) RBF: Check each component length of destination path when add/update mount entry
[ https://issues.apache.org/jira/browse/HDFS-15082?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17081657#comment-17081657 ] Xiaoqiao He commented on HDFS-15082: Thanks [~ayushtkn] for your comments. Yes, since we reused DFS_NAMENODE_MAX_COMPONENT_LENGTH_KEY configuration key at Router side based on v003, so it keeps this restriction when set configuration. IMO, we should add description explicitly for DFS_NAMENODE_MAX_COMPONENT_LENGTH_KEY to end user and suggest to set this configuration at Router side if NN side do that. What do you think about or any other suggestions? Thanks. > RBF: Check each component length of destination path when add/update mount > entry > > > Key: HDFS-15082 > URL: https://issues.apache.org/jira/browse/HDFS-15082 > Project: Hadoop HDFS > Issue Type: Sub-task > Components: rbf >Reporter: Xiaoqiao He >Assignee: Xiaoqiao He >Priority: Major > Attachments: HDFS-15082.001.patch, HDFS-15082.002.patch, > HDFS-15082.003.patch > > > When add/update mount entry, each component length of destination path could > exceed filesystem path component length limit, reference to > `dfs.namenode.fs-limits.max-component-length` of NameNode. So we should check > each component length of destination path when add/update mount entry at > Router side. -- This message was sent by Atlassian Jira (v8.3.4#803005) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-15082) RBF: Check each component length of destination path when add/update mount entry
[
https://issues.apache.org/jira/browse/HDFS-15082?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17079254#comment-17079254
]
Ayush Saxena commented on HDFS-15082:
-
Thanx [~hexiaoqiao] for the patch. the code changes LGTM.
The only doubt I have is, if someone has explicitly configured
{{DFS_NAMENODE_MAX_COMPONENT_LENGTH_KEY}} at the namenodes, now he has to set
the value at the Router too? otherwise his addMount Operations will start
failing which earlier used to pass.
Is this acceptable?
> RBF: Check each component length of destination path when add/update mount
> entry
>
>
> Key: HDFS-15082
> URL: https://issues.apache.org/jira/browse/HDFS-15082
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: rbf
>Reporter: Xiaoqiao He
>Assignee: Xiaoqiao He
>Priority: Major
> Attachments: HDFS-15082.001.patch, HDFS-15082.002.patch,
> HDFS-15082.003.patch
>
>
> When add/update mount entry, each component length of destination path could
> exceed filesystem path component length limit, reference to
> `dfs.namenode.fs-limits.max-component-length` of NameNode. So we should check
> each component length of destination path when add/update mount entry at
> Router side.
--
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[jira] [Commented] (HDFS-15082) RBF: Check each component length of destination path when add/update mount entry
[ https://issues.apache.org/jira/browse/HDFS-15082?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17069958#comment-17069958 ] Íñigo Goiri commented on HDFS-15082: +1 on [^HDFS-15082.003.patch]. > RBF: Check each component length of destination path when add/update mount > entry > > > Key: HDFS-15082 > URL: https://issues.apache.org/jira/browse/HDFS-15082 > Project: Hadoop HDFS > Issue Type: Sub-task > Components: rbf >Reporter: Xiaoqiao He >Assignee: Xiaoqiao He >Priority: Major > Attachments: HDFS-15082.001.patch, HDFS-15082.002.patch, > HDFS-15082.003.patch > > > When add/update mount entry, each component length of destination path could > exceed filesystem path component length limit, reference to > `dfs.namenode.fs-limits.max-component-length` of NameNode. So we should check > each component length of destination path when add/update mount entry at > Router side. -- This message was sent by Atlassian Jira (v8.3.4#803005) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-15082) RBF: Check each component length of destination path when add/update mount entry
[
https://issues.apache.org/jira/browse/HDFS-15082?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17066464#comment-17066464
]
Xiaoqiao He commented on HDFS-15082:
Hi [~elgoiri], I try to test failed unit test {{TestRouterFaultTolerant}} at
local times, It seems all pass and not related with this changes. Please help
to double check. Thanks.
> RBF: Check each component length of destination path when add/update mount
> entry
>
>
> Key: HDFS-15082
> URL: https://issues.apache.org/jira/browse/HDFS-15082
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: rbf
>Reporter: Xiaoqiao He
>Assignee: Xiaoqiao He
>Priority: Major
> Attachments: HDFS-15082.001.patch, HDFS-15082.002.patch,
> HDFS-15082.003.patch
>
>
> When add/update mount entry, each component length of destination path could
> exceed filesystem path component length limit, reference to
> `dfs.namenode.fs-limits.max-component-length` of NameNode. So we should check
> each component length of destination path when add/update mount entry at
> Router side.
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[jira] [Commented] (HDFS-15082) RBF: Check each component length of destination path when add/update mount entry
[
https://issues.apache.org/jira/browse/HDFS-15082?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17066416#comment-17066416
]
Hadoop QA commented on HDFS-15082:
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[jira] [Commented] (HDFS-15082) RBF: Check each component length of destination path when add/update mount entry
[ https://issues.apache.org/jira/browse/HDFS-15082?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17066381#comment-17066381 ] Xiaoqiao He commented on HDFS-15082: Thanks [~elgoiri] for picking up this issue. submit v003 (total same as v002) and try to trigger Jenkins. > RBF: Check each component length of destination path when add/update mount > entry > > > Key: HDFS-15082 > URL: https://issues.apache.org/jira/browse/HDFS-15082 > Project: Hadoop HDFS > Issue Type: Sub-task > Components: rbf >Reporter: Xiaoqiao He >Assignee: Xiaoqiao He >Priority: Major > Attachments: HDFS-15082.001.patch, HDFS-15082.002.patch, > HDFS-15082.003.patch > > > When add/update mount entry, each component length of destination path could > exceed filesystem path component length limit, reference to > `dfs.namenode.fs-limits.max-component-length` of NameNode. So we should check > each component length of destination path when add/update mount entry at > Router side. -- This message was sent by Atlassian Jira (v8.3.4#803005) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-15082) RBF: Check each component length of destination path when add/update mount entry
[ https://issues.apache.org/jira/browse/HDFS-15082?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17066291#comment-17066291 ] Íñigo Goiri commented on HDFS-15082: [~hexiaoqiao], do you mind submitting again? It has been some time and I'd like to make sure it still runs. Other than that, it looks good. > RBF: Check each component length of destination path when add/update mount > entry > > > Key: HDFS-15082 > URL: https://issues.apache.org/jira/browse/HDFS-15082 > Project: Hadoop HDFS > Issue Type: Sub-task > Components: rbf >Reporter: Xiaoqiao He >Assignee: Xiaoqiao He >Priority: Major > Attachments: HDFS-15082.001.patch, HDFS-15082.002.patch > > > When add/update mount entry, each component length of destination path could > exceed filesystem path component length limit, reference to > `dfs.namenode.fs-limits.max-component-length` of NameNode. So we should check > each component length of destination path when add/update mount entry at > Router side. -- This message was sent by Atlassian Jira (v8.3.4#803005) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-15082) RBF: Check each component length of destination path when add/update mount entry
[
https://issues.apache.org/jira/browse/HDFS-15082?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17013490#comment-17013490
]
Hadoop QA commented on HDFS-15082:
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> RBF: Check each component length of destination path when add/update mount
> entry
>
>
>
[jira] [Commented] (HDFS-15082) RBF: Check each component length of destination path when add/update mount entry
[ https://issues.apache.org/jira/browse/HDFS-15082?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17013460#comment-17013460 ] Xiaoqiao He commented on HDFS-15082: Thanks [~elgoiri] for your reviews and comments. v002 update and follows the suggestions. > RBF: Check each component length of destination path when add/update mount > entry > > > Key: HDFS-15082 > URL: https://issues.apache.org/jira/browse/HDFS-15082 > Project: Hadoop HDFS > Issue Type: Sub-task > Components: rbf >Reporter: Xiaoqiao He >Assignee: Xiaoqiao He >Priority: Major > Attachments: HDFS-15082.001.patch, HDFS-15082.002.patch > > > When add/update mount entry, each component length of destination path could > exceed filesystem path component length limit, reference to > `dfs.namenode.fs-limits.max-component-length` of NameNode. So we should check > each component length of destination path when add/update mount entry at > Router side. -- This message was sent by Atlassian Jira (v8.3.4#803005) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-15082) RBF: Check each component length of destination path when add/update mount entry
[ https://issues.apache.org/jira/browse/HDFS-15082?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17011018#comment-17011018 ] Íñigo Goiri commented on HDFS-15082: Not sure about the overall discussion but a few minor components on the patch: * Instead of using 255 in the config, can we refer to DFS_NAMENODE_MAX_COMPONENT_LENGTH_KEY? * Can we use long for maxComponentLength? > RBF: Check each component length of destination path when add/update mount > entry > > > Key: HDFS-15082 > URL: https://issues.apache.org/jira/browse/HDFS-15082 > Project: Hadoop HDFS > Issue Type: Sub-task > Components: rbf >Reporter: Xiaoqiao He >Assignee: Xiaoqiao He >Priority: Major > Attachments: HDFS-15082.001.patch > > > When add/update mount entry, each component length of destination path could > exceed filesystem path component length limit, reference to > `dfs.namenode.fs-limits.max-component-length` of NameNode. So we should check > each component length of destination path when add/update mount entry at > Router side. -- This message was sent by Atlassian Jira (v8.3.4#803005) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-15082) RBF: Check each component length of destination path when add/update mount entry
[ https://issues.apache.org/jira/browse/HDFS-15082?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17005115#comment-17005115 ] Xiaoqiao He commented on HDFS-15082: Hi [~ayushtkn], Thanks for your comments. This thought comes from [~elgoiri]'s [comments|https://issues.apache.org/jira/browse/HDFS-15051?focusedCommentId=16994972=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-16994972], Since we open the add/update mount entry privilege to end user, there are some cases that these operations will be not valid such as path component too long. If end user create an invalid entry but not clean it for this situation in time, it will pile up more and more entries and not used anymore without any auto clean mechanism now. It may be reduce the performance of query/write/delete operations.(Sorry I do not collect detailed benchmark result, just observed the latency while there are hundreds of thousands of znodes(mount table entries & delegation token entries) with ZKDelegationTokenSecretManager) So my thought is, a. revoke mount entry operation privilege to super user only, (it looks that this solution is not proper for [~elgoiri]'s cases.) b. limit the invalid entries into mount table. (PathComponentTooLongException is one case of them) For the configuration value, the current demo patch is not the final solution, welcome some more suggestions. Of course, it is not very graceful for different namespaces with different max-component-limit values. What about give a bigger default value(such as 512/1024) to limit it. other thought? > RBF: Check each component length of destination path when add/update mount > entry > > > Key: HDFS-15082 > URL: https://issues.apache.org/jira/browse/HDFS-15082 > Project: Hadoop HDFS > Issue Type: Sub-task > Components: rbf >Reporter: Xiaoqiao He >Assignee: Xiaoqiao He >Priority: Major > Attachments: HDFS-15082.001.patch > > > When add/update mount entry, each component length of destination path could > exceed filesystem path component length limit, reference to > `dfs.namenode.fs-limits.max-component-length` of NameNode. So we should check > each component length of destination path when add/update mount entry at > Router side. -- This message was sent by Atlassian Jira (v8.3.4#803005) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-15082) RBF: Check each component length of destination path when add/update mount entry
[ https://issues.apache.org/jira/browse/HDFS-15082?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17004780#comment-17004780 ] Ayush Saxena commented on HDFS-15082: - if you have a independent configuration at the router side, If you block at say 255, But the namespace is configured at say 150, your idea or the reason to do so shall fail, or if different namespace have different values. Anyway, whoever tends to create the mount point, it is his responsibility to create the destination too, he should handle? Moreover, there is something more over here too, say I mount /mnt to at a 255 size dest, if a end user tries to create a directory, /mnt/file, he would get a exception from the Namenode, that the path length /mnt/file exceeds the configured value 255 for path. And I don't think we can do much on it, It seems more of Admin Job to handle these stuff. Not Against, but I don't think this would add much value and sense, I had couple of discussions internally long back and all ultimately tend to reach a point where there were no answers. > RBF: Check each component length of destination path when add/update mount > entry > > > Key: HDFS-15082 > URL: https://issues.apache.org/jira/browse/HDFS-15082 > Project: Hadoop HDFS > Issue Type: Sub-task > Components: rbf >Reporter: Xiaoqiao He >Assignee: Xiaoqiao He >Priority: Major > Attachments: HDFS-15082.001.patch > > > When add/update mount entry, each component length of destination path could > exceed filesystem path component length limit, reference to > `dfs.namenode.fs-limits.max-component-length` of NameNode. So we should check > each component length of destination path when add/update mount entry at > Router side. -- This message was sent by Atlassian Jira (v8.3.4#803005) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-15082) RBF: Check each component length of destination path when add/update mount entry
[
https://issues.apache.org/jira/browse/HDFS-15082?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17004714#comment-17004714
]
Hadoop QA commented on HDFS-15082:
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\\
\\
|| Subsystem || Report/Notes ||
| Docker | Client=19.03.5 Server=19.03.5 Image:yetus/hadoop:c44943d1fc3 |
| JIRA Issue | HDFS-15082 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12989629/HDFS-15082.001.patch |
| Optional Tests | dupname asflicense compile javac javadoc mvninstall
mvnsite unit shadedclient findbugs checkstyle xml |
| uname | Linux be69006757e8 4.15.0-58-generic #64-Ubuntu SMP Tue Aug 6
11:12:41 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/patchprocess/precommit/personality/provided.sh |
| git revision | trunk / ee51ead |
| maven | version: Apache Maven 3.3.9 |
| Default Java | 1.8.0_232 |
| findbugs | v3.1.0-RC1 |
| checkstyle |
https://builds.apache.org/job/PreCommit-HDFS-Build/28589/artifact/out/diff-checkstyle-hadoop-hdfs-project_hadoop-hdfs-rbf.txt
|
| Test Results |
https://builds.apache.org/job/PreCommit-HDFS-Build/28589/testReport/ |
| Max. process+thread count | 2999 (vs. ulimit of 5500) |
| modules | C: hadoop-hdfs-project/hadoop-hdfs-rbf U:
[jira] [Commented] (HDFS-15082) RBF: Check each component length of destination path when add/update mount entry
[
https://issues.apache.org/jira/browse/HDFS-15082?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17004700#comment-17004700
]
Xiaoqiao He commented on HDFS-15082:
It is useless entry at router side if we add/update mount entry with no length
restriction component of destination path when enable
`DFS_NAMENODE_MAX_COMPONENT_LENGTH_KEY` in namenode side, actually, it is
enable with 255 by default. So I think we should check it and avoid unused
entry to add/update into router mount table.
{quote}is it similar to HDFS-13576?{quote}
they are exactly the same. sorry for no watched before.
{quote}Are we having a separate configuration at the Router to specify the path
length independent of the namespace?{quote}
Any other suggestions? I have thought reuse
`dfs.namenode.fs-limits.max-component-length` at the beginning, but it seems
that it will be more convenient to configure if we separate them IMO.
> RBF: Check each component length of destination path when add/update mount
> entry
>
>
> Key: HDFS-15082
> URL: https://issues.apache.org/jira/browse/HDFS-15082
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: rbf
>Reporter: Xiaoqiao He
>Assignee: Xiaoqiao He
>Priority: Major
> Attachments: HDFS-15082.001.patch
>
>
> When add/update mount entry, each component length of destination path could
> exceed filesystem path component length limit, reference to
> `dfs.namenode.fs-limits.max-component-length` of NameNode. So we should check
> each component length of destination path when add/update mount entry at
> Router side.
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[jira] [Commented] (HDFS-15082) RBF: Check each component length of destination path when add/update mount entry
[ https://issues.apache.org/jira/browse/HDFS-15082?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17004682#comment-17004682 ] Ayush Saxena commented on HDFS-15082: - is it similar to HDFS-13576? Regarding the patch : * Are we having a separate configuration at the Router to specify the path length independent of the namespace? If so, I don't think it makes sense. * The default should be 0, to disable this by default to ensure compatibility? * What is the use case for having this, or say advantage of having this? > RBF: Check each component length of destination path when add/update mount > entry > > > Key: HDFS-15082 > URL: https://issues.apache.org/jira/browse/HDFS-15082 > Project: Hadoop HDFS > Issue Type: Sub-task > Components: rbf >Reporter: Xiaoqiao He >Assignee: Xiaoqiao He >Priority: Major > Attachments: HDFS-15082.001.patch > > > When add/update mount entry, each component length of destination path could > exceed filesystem path component length limit, reference to > `dfs.namenode.fs-limits.max-component-length` of NameNode. So we should check > each component length of destination path when add/update mount entry at > Router side. -- This message was sent by Atlassian Jira (v8.3.4#803005) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
