[jira] [Commented] (HDFS-13123) RBF: Add a balancer tool to move data across subcluster
[
https://issues.apache.org/jira/browse/HDFS-13123?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17369236#comment-17369236
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Hadoop QA commented on HDFS-13123:
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[jira] [Commented] (HDFS-13123) RBF: Add a balancer tool to move data across subcluster
[ https://issues.apache.org/jira/browse/HDFS-13123?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17369220#comment-17369220 ] panlijie commented on HDFS-13123: - Add [HDFS-16087|https://issues.apache.org/jira/projects/HDFS/issues/HDFS-16087] RBF balance process is stuck at DisableWrite stage ，Eric Yin will commit it. > RBF: Add a balancer tool to move data across subcluster > > > Key: HDFS-13123 > URL: https://issues.apache.org/jira/browse/HDFS-13123 > Project: Hadoop HDFS > Issue Type: Improvement >Reporter: Wei Yan >Assignee: Hemanth Boyina >Priority: Major > Attachments: HDFS Router-Based Federation Rebalancer.pdf, > HDFS-13123.patch > > > Follow the discussion in HDFS-12615. This Jira is to track effort for > building a rebalancer tool, used by router-based federation to move data > among subclusters. -- 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-13123) RBF: Add a balancer tool to move data across subcluster
[
https://issues.apache.org/jira/browse/HDFS-13123?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17005372#comment-17005372
]
Hadoop QA commented on HDFS-13123:
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|| Subsystem || Report/Notes ||
| Docker | Client=19.03.5 Server=19.03.5 Image:yetus/hadoop:c44943d1fc3 |
| JIRA Issue | HDFS-13123 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12973273/HDFS-13123.patch |
| Optional Tests | dupname asflicense compile javac javadoc mvninstall
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| Build tool | maven |
| Personality | /testptch/patchprocess/precommit/personality/provided.sh |
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https://builds.apache.org/job/PreCommit-HDFS-Build/28593/artifact/out/patch-mvninstall-hadoop-hdfs-project_hadoop-hdfs-rbf.txt
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[jira] [Commented] (HDFS-13123) RBF: Add a balancer tool to move data across subcluster
[
https://issues.apache.org/jira/browse/HDFS-13123?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16911953#comment-16911953
]
hemanthboyina commented on HDFS-13123:
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hi [~jojochuang] , thanks for the review
_You should make sure both directories on the source and destination
are snapshottable before running this tool._
we are making source and destination snapshottable , before doing any operation
{code:java}
srcFs.allowSnapshot(srcmountPath);
destFs.allowSnapshot(destFolderPath);{code}
_Probably not a good idea to hard code the snapshot name as "s1" and
"s2". Use randomly generated name instead._
will change this
_I don't understand why you create two snapshots in the source cluster
almost immediately. If you do so, you only update the files added/deleted
during the two snapshots_.
According to design in the document : "Do a first copy first, then put the
lock, and do a second copy to capture any new changes there." so created
snapshot and did disctp now data was in destination , if there any files
added/deleted during this time , we take a second snapshot and do the diff
_The state of "s1" snapshot on the source should be exactly the same as the
state of "s1" snapshot on the destination. You'll hit various strange issues if
the destination is not a mirror of source._
After using distcp , we check the return code of distcp , if the copy was not
successfull we delete the copied folder in destination ,we revert back the
changes we have done(allowsnapshot , createsnapshot) and will return (didnt
updated in the code , should modify it )
_make sure you delete the snapshots even if the prior steps hit errors._
have done that , please check in this part of code .
{code:java}
if (exitCode != 0) {
srcFs.deleteSnapshot(srcmountPath, "s1");
srcFs.disallowSnapshot(srcmountPath);
if (distcpUpdateExitCode != 0) {
srcFs.deleteSnapshot(srcmountPath, "s1");
srcFs.deleteSnapshot(srcmountPath, "s2");
srcFs.disallowSnapshot(srcmountPath);
destFs.deleteSnapshot(destFolderPath, "s1");
destFs.disallowSnapshot(destFolderPath);
destFs.delete(new Path(destpath), true);{code}
> RBF: Add a balancer tool to move data across subcluster
>
>
> Key: HDFS-13123
> URL: https://issues.apache.org/jira/browse/HDFS-13123
> Project: Hadoop HDFS
> Issue Type: Improvement
>Reporter: Wei Yan
>Assignee: hemanthboyina
>Priority: Major
> Attachments: HDFS Router-Based Federation Rebalancer.pdf,
> HDFS-13123.patch
>
>
> Follow the discussion in HDFS-12615. This Jira is to track effort for
> building a rebalancer tool, used by router-based federation to move data
> among subclusters.
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[jira] [Commented] (HDFS-13123) RBF: Add a balancer tool to move data across subcluster
[ https://issues.apache.org/jira/browse/HDFS-13123?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16911849#comment-16911849 ] Wei-Chiu Chuang commented on HDFS-13123: This patch uses distcp + snapshot. [~smeng] FYI. Given how much "experience" we have associated with distcp + snapshot, I want to be very careful with this patch. You should make sure both directories on the source and destination are snapshottable before running this tool. Probably not a good idea to hard code the snapshot name as "s1" and "s2". Use randomly generated name instead. I don't understand why you create two snapshots in the source cluster almost immediately. If you do so, you only update the files added/deleted during the two snapshots. The distcp -diff command is meant for a read-only destination. The state of "s1" snapshot on the source should be exactly the same as the state of "s1" snapshot on the destination. You'll hit various strange issues if the destination is not a mirror of source. This is either not the right way to use the tool, or not the right tool for the use case. Additionally, make sure you delete the snapshots even if the prior steps hit errors. Otherwise you'll end up with thousands of leftover snapshots. > RBF: Add a balancer tool to move data across subcluster > > > Key: HDFS-13123 > URL: https://issues.apache.org/jira/browse/HDFS-13123 > Project: Hadoop HDFS > Issue Type: Improvement >Reporter: Wei Yan >Assignee: hemanthboyina >Priority: Major > Attachments: HDFS Router-Based Federation Rebalancer.pdf, > HDFS-13123.patch > > > Follow the discussion in HDFS-12615. This Jira is to track effort for > building a rebalancer tool, used by router-based federation to move data > among subclusters. -- This message was sent by Atlassian Jira (v8.3.2#803003) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-13123) RBF: Add a balancer tool to move data across subcluster
[ https://issues.apache.org/jira/browse/HDFS-13123?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16905797#comment-16905797 ] hemanthboyina commented on HDFS-13123: -- thanks for the comment [~crh] _How is atomicity in distcp taken into account here? If distcp fails, destination cluster may have unused files lying around unaudited. May be user can specify atomicity flag through admin._ __ if the distcp fails , we will delete the files copied in the destination cluster , +We can use atomicity flag for better purpose+ _How are multiple rebalancings going to work if executed? Should admin maintain a state of what all rebalancing is in progress and what all completed. Some basic auditing at least._ Yes admin should maintain what all rebalancing operations in progress , and for a given mount point, we only allow one concurrent rebalancing operation. _Rebalancing across secured clusters?_ As we are using distcp , distcp should be taken care of it in secure cluster > RBF: Add a balancer tool to move data across subcluster > > > Key: HDFS-13123 > URL: https://issues.apache.org/jira/browse/HDFS-13123 > Project: Hadoop HDFS > Issue Type: Improvement >Reporter: Wei Yan >Assignee: hemanthboyina >Priority: Major > Attachments: HDFS Router-Based Federation Rebalancer.pdf, > HDFS-13123.patch > > > Follow the discussion in HDFS-12615. This Jira is to track effort for > building a rebalancer tool, used by router-based federation to move data > among subclusters. -- This message was sent by Atlassian JIRA (v7.6.14#76016) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-13123) RBF: Add a balancer tool to move data across subcluster
[ https://issues.apache.org/jira/browse/HDFS-13123?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16905411#comment-16905411 ] CR Hota commented on HDFS-13123: [~hemanthboyina] Thanks for the initial patch. We may need a final design doc for this task, explaining some of the below points. # How is atomicity in distcp taken into account here? If distcp fails, destination cluster may have unused files lying around unaudited. May be user can specify atomicity flag through admin. # Will all the actual work be done by common yarn queue belonging to "router" irrespective of user ? # How are multiple rebalancings going to work if executed? Should admin maintain a state of what all rebalancing is in progress and what all completed. Some basic auditing at least. # How does this rebalancing work play with overall user quota management ? # Rebalancing across secured clusters? etc. > RBF: Add a balancer tool to move data across subcluster > > > Key: HDFS-13123 > URL: https://issues.apache.org/jira/browse/HDFS-13123 > Project: Hadoop HDFS > Issue Type: Improvement >Reporter: Wei Yan >Assignee: hemanthboyina >Priority: Major > Attachments: HDFS Router-Based Federation Rebalancer.pdf, > HDFS-13123.patch > > > Follow the discussion in HDFS-12615. This Jira is to track effort for > building a rebalancer tool, used by router-based federation to move data > among subclusters. -- This message was sent by Atlassian JIRA (v7.6.14#76016) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-13123) RBF: Add a balancer tool to move data across subcluster
[ https://issues.apache.org/jira/browse/HDFS-13123?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16904410#comment-16904410 ] hemanthboyina commented on HDFS-13123: -- [~elgoiri] [~jojochuang] attached the intial patch , can you review it > RBF: Add a balancer tool to move data across subcluster > > > Key: HDFS-13123 > URL: https://issues.apache.org/jira/browse/HDFS-13123 > Project: Hadoop HDFS > Issue Type: Improvement >Reporter: Wei Yan >Assignee: hemanthboyina >Priority: Major > Attachments: HDFS Router-Based Federation Rebalancer.pdf, > HDFS-13123.patch > > > Follow the discussion in HDFS-12615. This Jira is to track effort for > building a rebalancer tool, used by router-based federation to move data > among subclusters. -- This message was sent by Atlassian JIRA (v7.6.14#76016) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-13123) RBF: Add a balancer tool to move data across subcluster
[
https://issues.apache.org/jira/browse/HDFS-13123?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16875688#comment-16875688
]
Hadoop QA commented on HDFS-13123:
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generated 90 new + 0 unchanged - 0 fixed = 90 total (was 0) {color} |
| {color:red}-1{color} | {color:red} mvnsite {color} | {color:red} 0m
23s{color} | {color:red} hadoop-hdfs-rbf in the patch failed. {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green} 0m
0s{color} | {color:green} The patch has no whitespace issues. {color} |
| {color:green}+1{color} | {color:green} xml {color} | {color:green} 0m
1s{color} | {color:green} The patch has no ill-formed XML file. {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green}
11m 57s{color} | {color:green} patch has no errors when building and testing
our client artifacts. {color} |
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red} 0m
21s{color} | {color:red} hadoop-hdfs-rbf in the patch failed. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
34s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 0m 26s{color}
| {color:red} hadoop-hdfs-rbf in the patch failed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m
30s{color} | {color:green} The patch does not generate ASF License warnings.
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 49m 21s{color} |
{color:black} {color} |
\\
\\
|| Subsystem || Report/Notes ||
| Docker | Client=17.05.0-ce Server=17.05.0-ce Image:yetus/hadoop:bdbca0e |
| JIRA Issue | HDFS-13123 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12973273/HDFS-13123.patch |
| Optional Tests | dupname asflicense compile javac javadoc mvninstall
mvnsite unit shadedclient xml findbugs checkstyle |
| uname | Linux 2b4d03934a0d 4.4.0-139-generic #165-Ubuntu SMP Wed Oct 24
10:58:50 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/patchprocess/precommit/personality/provided.sh |
| git revision | trunk / d203045 |
| maven | version: Apache Maven 3.3.9 |
| Default Java | 1.8.0_212 |
| findbugs | v3.1.0-RC1 |
| mvninstall |
https://builds.apache.org/job/PreCommit-HDFS-Build/27117/artifact/out/patch-mvninstall-hadoop-hdfs-project_hadoop-hdfs-rbf.txt
|
| compile |
[jira] [Commented] (HDFS-13123) RBF: Add a balancer tool to move data across subcluster
[ https://issues.apache.org/jira/browse/HDFS-13123?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16875653#comment-16875653 ] hemanthboyina commented on HDFS-13123: -- thanks [~elgoiri] , will be happy to take the prototype. i have submitted the initial patch , please review it , and will develop further changes according to comments . > RBF: Add a balancer tool to move data across subcluster > > > Key: HDFS-13123 > URL: https://issues.apache.org/jira/browse/HDFS-13123 > Project: Hadoop HDFS > Issue Type: Improvement >Reporter: Wei Yan >Assignee: hemanthboyina >Priority: Major > Attachments: HDFS Router-Based Federation Rebalancer.pdf, > HDFS-13123.patch > > > Follow the discussion in HDFS-12615. This Jira is to track effort for > building a rebalancer tool, used by router-based federation to move data > among subclusters. -- This message was sent by Atlassian JIRA (v7.6.3#76005) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-13123) RBF: Add a balancer tool to move data across subcluster
[ https://issues.apache.org/jira/browse/HDFS-13123?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16875031#comment-16875031 ] Íñigo Goiri commented on HDFS-13123: Sorry [~hemanthboyina] for not following up. We had a prototype a couple years ago for this but never made it into production. I'll try to get our old version and post it but feel free to take over. > RBF: Add a balancer tool to move data across subcluster > > > Key: HDFS-13123 > URL: https://issues.apache.org/jira/browse/HDFS-13123 > Project: Hadoop HDFS > Issue Type: Improvement >Reporter: Wei Yan >Assignee: hemanthboyina >Priority: Major > Attachments: HDFS Router-Based Federation Rebalancer.pdf > > > Follow the discussion in HDFS-12615. This Jira is to track effort for > building a rebalancer tool, used by router-based federation to move data > among subclusters. -- This message was sent by Atlassian JIRA (v7.6.3#76005) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-13123) RBF: Add a balancer tool to move data across subcluster
[ https://issues.apache.org/jira/browse/HDFS-13123?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16874826#comment-16874826 ] hemanthboyina commented on HDFS-13123: -- [~ywskycn] [~elgoiri] [~brahmareddy] I have implemented according to doc attached , is there any new updates in the doc ? > RBF: Add a balancer tool to move data across subcluster > > > Key: HDFS-13123 > URL: https://issues.apache.org/jira/browse/HDFS-13123 > Project: Hadoop HDFS > Issue Type: Improvement >Reporter: Wei Yan >Assignee: hemanthboyina >Priority: Major > Attachments: HDFS Router-Based Federation Rebalancer.pdf > > > Follow the discussion in HDFS-12615. This Jira is to track effort for > building a rebalancer tool, used by router-based federation to move data > among subclusters. -- This message was sent by Atlassian JIRA (v7.6.3#76005) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-13123) RBF: Add a balancer tool to move data across subcluster
[ https://issues.apache.org/jira/browse/HDFS-13123?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16864035#comment-16864035 ] hemanthboyina commented on HDFS-13123: -- [~brahmareddy] [~elgoiri] [~ekanth] i have started implementing according to pdf attached , are there any new changes regarding this > RBF: Add a balancer tool to move data across subcluster > > > Key: HDFS-13123 > URL: https://issues.apache.org/jira/browse/HDFS-13123 > Project: Hadoop HDFS > Issue Type: Improvement >Reporter: Wei Yan >Assignee: hemanthboyina >Priority: Major > Attachments: HDFS Router-Based Federation Rebalancer.pdf > > > Follow the discussion in HDFS-12615. This Jira is to track effort for > building a rebalancer tool, used by router-based federation to move data > among subclusters. -- This message was sent by Atlassian JIRA (v7.6.3#76005) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-13123) RBF: Add a balancer tool to move data across subcluster
[ https://issues.apache.org/jira/browse/HDFS-13123?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16777308#comment-16777308 ] Ekanth Sethuramalingam commented on HDFS-13123: --- [~elgoiri], [~ywskycn] was working on an increment over your original PoC patch. However, we did not pursue that any further. Unfortunately, we don't have anything here :( > RBF: Add a balancer tool to move data across subcluster > > > Key: HDFS-13123 > URL: https://issues.apache.org/jira/browse/HDFS-13123 > Project: Hadoop HDFS > Issue Type: Improvement >Reporter: Wei Yan >Assignee: Wei Yan >Priority: Major > Attachments: HDFS Router-Based Federation Rebalancer.pdf > > > Follow the discussion in HDFS-12615. This Jira is to track effort for > building a rebalancer tool, used by router-based federation to move data > among subclusters. -- This message was sent by Atlassian JIRA (v7.6.3#76005) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-13123) RBF: Add a balancer tool to move data across subcluster
[ https://issues.apache.org/jira/browse/HDFS-13123?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16775966#comment-16775966 ] Íñigo Goiri commented on HDFS-13123: I think [~ekanth] had some modifications on top of our internal original PoC. [~ekanth], do you have anything that can be posted? > RBF: Add a balancer tool to move data across subcluster > > > Key: HDFS-13123 > URL: https://issues.apache.org/jira/browse/HDFS-13123 > Project: Hadoop HDFS > Issue Type: Improvement >Reporter: Wei Yan >Assignee: Wei Yan >Priority: Major > Attachments: HDFS Router-Based Federation Rebalancer.pdf > > > Follow the discussion in HDFS-12615. This Jira is to track effort for > building a rebalancer tool, used by router-based federation to move data > among subclusters. -- This message was sent by Atlassian JIRA (v7.6.3#76005) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-13123) RBF: Add a balancer tool to move data across subcluster
[ https://issues.apache.org/jira/browse/HDFS-13123?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16774698#comment-16774698 ] Yiqun Lin commented on HDFS-13123: -- Hi [~ywskycn] and [~elgoiri], is there any POC patch for this as I remember rebalancer has been used in your production env? > RBF: Add a balancer tool to move data across subcluster > > > Key: HDFS-13123 > URL: https://issues.apache.org/jira/browse/HDFS-13123 > Project: Hadoop HDFS > Issue Type: Improvement >Reporter: Wei Yan >Assignee: Wei Yan >Priority: Major > Attachments: HDFS Router-Based Federation Rebalancer.pdf > > > Follow the discussion in HDFS-12615. This Jira is to track effort for > building a rebalancer tool, used by router-based federation to move data > among subclusters. -- This message was sent by Atlassian JIRA (v7.6.3#76005) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-13123) RBF: Add a balancer tool to move data across subcluster
[ https://issues.apache.org/jira/browse/HDFS-13123?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16774433#comment-16774433 ] Wei Yan commented on HDFS-13123: [~brahmareddy] sorry for the late reply. As I have moved to other projects, feel free to move and pick up this jira. Pls let me know if anything I can help here. > RBF: Add a balancer tool to move data across subcluster > > > Key: HDFS-13123 > URL: https://issues.apache.org/jira/browse/HDFS-13123 > Project: Hadoop HDFS > Issue Type: Improvement >Reporter: Wei Yan >Assignee: Wei Yan >Priority: Major > Attachments: HDFS Router-Based Federation Rebalancer.pdf > > > Follow the discussion in HDFS-12615. This Jira is to track effort for > building a rebalancer tool, used by router-based federation to move data > among subclusters. -- This message was sent by Atlassian JIRA (v7.6.3#76005) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-13123) RBF: Add a balancer tool to move data across subcluster
[ https://issues.apache.org/jira/browse/HDFS-13123?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16772199#comment-16772199 ] Brahma Reddy Battula commented on HDFS-13123: - [~ywskycn] any update on this..? shall we plan under HDFS-13891? > RBF: Add a balancer tool to move data across subcluster > > > Key: HDFS-13123 > URL: https://issues.apache.org/jira/browse/HDFS-13123 > Project: Hadoop HDFS > Issue Type: Improvement >Reporter: Wei Yan >Assignee: Wei Yan >Priority: Major > Attachments: HDFS Router-Based Federation Rebalancer.pdf > > > Follow the discussion in HDFS-12615. This Jira is to track effort for > building a rebalancer tool, used by router-based federation to move data > among subclusters. -- This message was sent by Atlassian JIRA (v7.6.3#76005) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
