[jira] [Resolved] (HDFS-16121) Iterative snapshot diff report can generate duplicate records for creates, deletes and Renames

2021-07-08 Thread Mukul Kumar Singh (Jira)


 [ 
https://issues.apache.org/jira/browse/HDFS-16121?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Mukul Kumar Singh resolved HDFS-16121.
--
Fix Version/s: 3.4.0
   Resolution: Fixed

> Iterative snapshot diff report can generate duplicate records for creates, 
> deletes and Renames
> --
>
> Key: HDFS-16121
> URL: https://issues.apache.org/jira/browse/HDFS-16121
> Project: Hadoop HDFS
>  Issue Type: Bug
>  Components: snapshots
>Reporter: Srinivasu Majeti
>Assignee: Shashikant Banerjee
>Priority: Major
>  Labels: pull-request-available
> Fix For: 3.4.0
>
>  Time Spent: 40m
>  Remaining Estimate: 0h
>
> Currently, iterative snapshot diff report first traverses the created list 
> for a directory diff and then the deleted list. If the deleted list size is 
> lesser than the created list size, the offset calculation in the respective 
> list seems wrong. So the next iteration of diff report generation call, it 
> will start iterating the already processed in the created list leading to 
> duplicate entries in the list.
> Fix is to correct the offset calculation during the traversal of the deleted 
> list.



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[jira] [Work logged] (HDFS-16121) Iterative snapshot diff report can generate duplicate records for creates, deletes and Renames

2021-07-08 Thread ASF GitHub Bot (Jira)


 [ 
https://issues.apache.org/jira/browse/HDFS-16121?focusedWorklogId=620860=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-620860
 ]

ASF GitHub Bot logged work on HDFS-16121:
-

Author: ASF GitHub Bot
Created on: 09/Jul/21 04:56
Start Date: 09/Jul/21 04:56
Worklog Time Spent: 10m 
  Work Description: mukul1987 merged pull request #3188:
URL: https://github.com/apache/hadoop/pull/3188


   


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Issue Time Tracking
---

Worklog Id: (was: 620860)
Time Spent: 40m  (was: 0.5h)

> Iterative snapshot diff report can generate duplicate records for creates, 
> deletes and Renames
> --
>
> Key: HDFS-16121
> URL: https://issues.apache.org/jira/browse/HDFS-16121
> Project: Hadoop HDFS
>  Issue Type: Bug
>  Components: snapshots
>Reporter: Srinivasu Majeti
>Assignee: Shashikant Banerjee
>Priority: Major
>  Labels: pull-request-available
>  Time Spent: 40m
>  Remaining Estimate: 0h
>
> Currently, iterative snapshot diff report first traverses the created list 
> for a directory diff and then the deleted list. If the deleted list size is 
> lesser than the created list size, the offset calculation in the respective 
> list seems wrong. So the next iteration of diff report generation call, it 
> will start iterating the already processed in the created list leading to 
> duplicate entries in the list.
> Fix is to correct the offset calculation during the traversal of the deleted 
> list.



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[jira] [Work logged] (HDFS-16121) Iterative snapshot diff report can generate duplicate records for creates, deletes and Renames

2021-07-08 Thread ASF GitHub Bot (Jira)


 [ 
https://issues.apache.org/jira/browse/HDFS-16121?focusedWorklogId=620693=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-620693
 ]

ASF GitHub Bot logged work on HDFS-16121:
-

Author: ASF GitHub Bot
Created on: 08/Jul/21 19:55
Start Date: 08/Jul/21 19:55
Worklog Time Spent: 10m 
  Work Description: hadoop-yetus commented on pull request #3188:
URL: https://github.com/apache/hadoop/pull/3188#issuecomment-876704391


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[jira] [Commented] (HDFS-15796) ConcurrentModificationException error happens on NameNode occasionally

2021-07-08 Thread Stephen O'Donnell (Jira)


[ 
https://issues.apache.org/jira/browse/HDFS-15796?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17377451#comment-17377451
 ] 

Stephen O'Donnell commented on HDFS-15796:
--

+1 on this from me. I will commit tomorrow if nobody else has any concerns.

> ConcurrentModificationException error happens on NameNode occasionally
> --
>
> Key: HDFS-15796
> URL: https://issues.apache.org/jira/browse/HDFS-15796
> Project: Hadoop HDFS
>  Issue Type: Bug
>  Components: hdfs
>Affects Versions: 3.1.1
>Reporter: Daniel Ma
>Assignee: Daniel Ma
>Priority: Critical
> Attachments: HDFS-15796-0001.patch
>
>
> ConcurrentModificationException error happens on NameNode occasionally.
>  
> {code:java}
> 2021-01-23 20:21:18,107 | ERROR | RedundancyMonitor | RedundancyMonitor 
> thread received Runtime exception.  | BlockManager.java:4746
> java.util.ConcurrentModificationException
>   at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:909)
>   at java.util.ArrayList$Itr.next(ArrayList.java:859)
>   at 
> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.computeReconstructionWorkForBlocks(BlockManager.java:1907)
>   at 
> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.computeBlockReconstructionWork(BlockManager.java:1859)
>   at 
> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.computeDatanodeWork(BlockManager.java:4862)
>   at 
> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager$RedundancyMonitor.run(BlockManager.java:4729)
>   at java.lang.Thread.run(Thread.java:748)
> {code}
>  
>  



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[jira] [Work logged] (HDFS-16121) Iterative snapshot diff report can generate duplicate records for creates, deletes and Renames

2021-07-08 Thread ASF GitHub Bot (Jira)


 [ 
https://issues.apache.org/jira/browse/HDFS-16121?focusedWorklogId=620480=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-620480
 ]

ASF GitHub Bot logged work on HDFS-16121:
-

Author: ASF GitHub Bot
Created on: 08/Jul/21 13:06
Start Date: 08/Jul/21 13:06
Worklog Time Spent: 10m 
  Work Description: hadoop-yetus commented on pull request #3188:
URL: https://github.com/apache/hadoop/pull/3188#issuecomment-876423471


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[jira] [Commented] (HDFS-15796) ConcurrentModificationException error happens on NameNode occasionally

2021-07-08 Thread Hudson (Jira)


[ 
https://issues.apache.org/jira/browse/HDFS-15796?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17377367#comment-17377367
 ] 

Hudson commented on HDFS-15796:
---

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[jira] [Commented] (HDFS-15796) ConcurrentModificationException error happens on NameNode occasionally

2021-07-08 Thread Daniel Ma (Jira)


[ 
https://issues.apache.org/jira/browse/HDFS-15796?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17377326#comment-17377326
 ] 

Daniel Ma commented on HDFS-15796:
--

[~sodonnell]

Yes, NameNode will exit when the exception happens which result in unexpected 
NameNode switchover

> ConcurrentModificationException error happens on NameNode occasionally
> --
>
> Key: HDFS-15796
> URL: https://issues.apache.org/jira/browse/HDFS-15796
> Project: Hadoop HDFS
>  Issue Type: Bug
>  Components: hdfs
>Affects Versions: 3.1.1
>Reporter: Daniel Ma
>Assignee: Daniel Ma
>Priority: Critical
> Attachments: HDFS-15796-0001.patch
>
>
> ConcurrentModificationException error happens on NameNode occasionally.
>  
> {code:java}
> 2021-01-23 20:21:18,107 | ERROR | RedundancyMonitor | RedundancyMonitor 
> thread received Runtime exception.  | BlockManager.java:4746
> java.util.ConcurrentModificationException
>   at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:909)
>   at java.util.ArrayList$Itr.next(ArrayList.java:859)
>   at 
> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.computeReconstructionWorkForBlocks(BlockManager.java:1907)
>   at 
> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.computeBlockReconstructionWork(BlockManager.java:1859)
>   at 
> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.computeDatanodeWork(BlockManager.java:4862)
>   at 
> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager$RedundancyMonitor.run(BlockManager.java:4729)
>   at java.lang.Thread.run(Thread.java:748)
> {code}
>  
>  



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[jira] [Commented] (HDFS-15796) ConcurrentModificationException error happens on NameNode occasionally

2021-07-08 Thread Stephen O'Donnell (Jira)


[ 
https://issues.apache.org/jira/browse/HDFS-15796?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17377279#comment-17377279
 ] 

Stephen O'Donnell commented on HDFS-15796:
--

[~Daniel Ma] When this problem occurs, does the namenode exit, or does it log 
the error and keep on working? Looking at the code, it seems like the NN will 
exit, but I wanted to be sure of the impact of this issue.

> ConcurrentModificationException error happens on NameNode occasionally
> --
>
> Key: HDFS-15796
> URL: https://issues.apache.org/jira/browse/HDFS-15796
> Project: Hadoop HDFS
>  Issue Type: Bug
>  Components: hdfs
>Affects Versions: 3.1.1
>Reporter: Daniel Ma
>Assignee: Daniel Ma
>Priority: Critical
> Attachments: HDFS-15796-0001.patch
>
>
> ConcurrentModificationException error happens on NameNode occasionally.
>  
> {code:java}
> 2021-01-23 20:21:18,107 | ERROR | RedundancyMonitor | RedundancyMonitor 
> thread received Runtime exception.  | BlockManager.java:4746
> java.util.ConcurrentModificationException
>   at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:909)
>   at java.util.ArrayList$Itr.next(ArrayList.java:859)
>   at 
> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.computeReconstructionWorkForBlocks(BlockManager.java:1907)
>   at 
> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.computeBlockReconstructionWork(BlockManager.java:1859)
>   at 
> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.computeDatanodeWork(BlockManager.java:4862)
>   at 
> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager$RedundancyMonitor.run(BlockManager.java:4729)
>   at java.lang.Thread.run(Thread.java:748)
> {code}
>  
>  



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[jira] [Commented] (HDFS-16121) Iterative snapshot diff report can generate duplicate records for creates, deletes and Renames

2021-07-08 Thread Stephen O'Donnell (Jira)


[ 
https://issues.apache.org/jira/browse/HDFS-16121?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17377262#comment-17377262
 ] 

Stephen O'Donnell commented on HDFS-16121:
--

Does it look like this change was introduced by HDFS-13252? If so, then I can 
link that issue to this one for tracking.

> Iterative snapshot diff report can generate duplicate records for creates, 
> deletes and Renames
> --
>
> Key: HDFS-16121
> URL: https://issues.apache.org/jira/browse/HDFS-16121
> Project: Hadoop HDFS
>  Issue Type: Bug
>  Components: snapshots
>Reporter: Srinivasu Majeti
>Assignee: Shashikant Banerjee
>Priority: Major
>  Labels: pull-request-available
>  Time Spent: 10m
>  Remaining Estimate: 0h
>
> Currently, iterative snapshot diff report first traverses the created list 
> for a directory diff and then the deleted list. If the deleted list size is 
> lesser than the created list size, the offset calculation in the respective 
> list seems wrong. So the next iteration of diff report generation call, it 
> will start iterating the already processed in the created list leading to 
> duplicate entries in the list.
> Fix is to correct the offset calculation during the traversal of the deleted 
> list.



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[jira] [Work logged] (HDFS-16087) RBF balance process is stuck at DisableWrite stage

2021-07-08 Thread ASF GitHub Bot (Jira)


 [ 
https://issues.apache.org/jira/browse/HDFS-16087?focusedWorklogId=620430=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-620430
 ]

ASF GitHub Bot logged work on HDFS-16087:
-

Author: ASF GitHub Bot
Created on: 08/Jul/21 09:29
Start Date: 08/Jul/21 09:29
Worklog Time Spent: 10m 
  Work Description: hadoop-yetus commented on pull request #3141:
URL: https://github.com/apache/hadoop/pull/3141#issuecomment-876285604


   :confetti_ball: **+1 overall**
   
   
   
   
   
   
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[jira] [Work logged] (HDFS-16121) Iterative snapshot diff report can generate duplicate records for creates, deletes and Renames

2021-07-08 Thread ASF GitHub Bot (Jira)


 [ 
https://issues.apache.org/jira/browse/HDFS-16121?focusedWorklogId=620393=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-620393
 ]

ASF GitHub Bot logged work on HDFS-16121:
-

Author: ASF GitHub Bot
Created on: 08/Jul/21 07:36
Start Date: 08/Jul/21 07:36
Worklog Time Spent: 10m 
  Work Description: bshashikant opened a new pull request #3188:
URL: https://github.com/apache/hadoop/pull/3188


   Please refer https://issues.apache.org/jira/browse/HDFS-16121 for details
   


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Issue Time Tracking
---

Worklog Id: (was: 620393)
Remaining Estimate: 0h
Time Spent: 10m

> Iterative snapshot diff report can generate duplicate records for creates, 
> deletes and Renames
> --
>
> Key: HDFS-16121
> URL: https://issues.apache.org/jira/browse/HDFS-16121
> Project: Hadoop HDFS
>  Issue Type: Bug
>  Components: snapshots
>Reporter: Srinivasu Majeti
>Assignee: Shashikant Banerjee
>Priority: Major
>  Time Spent: 10m
>  Remaining Estimate: 0h
>
> Currently, iterative snapshot diff report first traverses the created list 
> for a directory diff and then the deleted list. If the deleted list size is 
> lesser than the created list size, the offset calculation in the respective 
> list seems wrong. So the next iteration of diff report generation call, it 
> will start iterating the already processed in the created list leading to 
> duplicate entries in the list.
> Fix is to correct the offset calculation during the traversal of the deleted 
> list.



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[jira] [Updated] (HDFS-16121) Iterative snapshot diff report can generate duplicate records for creates, deletes and Renames

2021-07-08 Thread ASF GitHub Bot (Jira)


 [ 
https://issues.apache.org/jira/browse/HDFS-16121?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

ASF GitHub Bot updated HDFS-16121:
--
Labels: pull-request-available  (was: )

> Iterative snapshot diff report can generate duplicate records for creates, 
> deletes and Renames
> --
>
> Key: HDFS-16121
> URL: https://issues.apache.org/jira/browse/HDFS-16121
> Project: Hadoop HDFS
>  Issue Type: Bug
>  Components: snapshots
>Reporter: Srinivasu Majeti
>Assignee: Shashikant Banerjee
>Priority: Major
>  Labels: pull-request-available
>  Time Spent: 10m
>  Remaining Estimate: 0h
>
> Currently, iterative snapshot diff report first traverses the created list 
> for a directory diff and then the deleted list. If the deleted list size is 
> lesser than the created list size, the offset calculation in the respective 
> list seems wrong. So the next iteration of diff report generation call, it 
> will start iterating the already processed in the created list leading to 
> duplicate entries in the list.
> Fix is to correct the offset calculation during the traversal of the deleted 
> list.



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[jira] [Updated] (HDFS-16121) Iterative snapshot diff report can generate duplicate records for creates, deletes and Renames

2021-07-08 Thread Shashikant Banerjee (Jira)


 [ 
https://issues.apache.org/jira/browse/HDFS-16121?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Shashikant Banerjee updated HDFS-16121:
---
Summary: Iterative snapshot diff report can generate duplicate records for 
creates, deletes and Renames  (was: Iterative snapshot diff report can generate 
duplicate records for creates and deletes)

> Iterative snapshot diff report can generate duplicate records for creates, 
> deletes and Renames
> --
>
> Key: HDFS-16121
> URL: https://issues.apache.org/jira/browse/HDFS-16121
> Project: Hadoop HDFS
>  Issue Type: Bug
>  Components: snapshots
>Reporter: Srinivasu Majeti
>Assignee: Shashikant Banerjee
>Priority: Major
>
> Currently, iterative snapshot diff report first traverses the created list 
> for a directory diff and then the deleted list. If the deleted list size is 
> lesser than the created list size, the offset calculation in the respective 
> list seems wrong. So the next iteration of diff report generation call, it 
> will start iterating the already processed in the created list leading to 
> duplicate entries in the list.
> Fix is to correct the offset calculation during the traversal of the deleted 
> list.



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[jira] [Work logged] (HDFS-16088) Standby NameNode process getLiveDatanodeStorageReport request to reduce Active load

2021-07-08 Thread ASF GitHub Bot (Jira)


 [ 
https://issues.apache.org/jira/browse/HDFS-16088?focusedWorklogId=620356=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-620356
 ]

ASF GitHub Bot logged work on HDFS-16088:
-

Author: ASF GitHub Bot
Created on: 08/Jul/21 06:14
Start Date: 08/Jul/21 06:14
Worklog Time Spent: 10m 
  Work Description: tomscut commented on pull request #3140:
URL: https://github.com/apache/hadoop/pull/3140#issuecomment-876159910


   Thanks @Hexiaoqiao for the review.  Thanks @ferhui for the merge.


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Issue Time Tracking
---

Worklog Id: (was: 620356)
Time Spent: 4.5h  (was: 4h 20m)

> Standby NameNode process getLiveDatanodeStorageReport request to reduce 
> Active load
> ---
>
> Key: HDFS-16088
> URL: https://issues.apache.org/jira/browse/HDFS-16088
> Project: Hadoop HDFS
>  Issue Type: Improvement
>Reporter: tomscut
>Assignee: tomscut
>Priority: Major
>  Labels: pull-request-available
> Fix For: 3.4.0
>
> Attachments: standyby-ipcserver.jpg
>
>  Time Spent: 4.5h
>  Remaining Estimate: 0h
>
> As with HDFS-13183, NameNodeConnector#getLiveDatanodeStorageReport() can also 
> request to SNN to reduce the ANN load.
> There are two points that need to be mentioned:
>  1. FSNamesystem#getDatanodeStorageReport() is OperationCategory.UNCHECKED, 
> so we can access SNN directly.
>  2. We can share the same UT(testBalancerRequestSBNWithHA) with 
> NameNodeConnector#getBlocks().



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[jira] [Resolved] (HDFS-16088) Standby NameNode process getLiveDatanodeStorageReport request to reduce Active load

2021-07-08 Thread Hui Fei (Jira)


 [ 
https://issues.apache.org/jira/browse/HDFS-16088?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Hui Fei resolved HDFS-16088.

Fix Version/s: 3.4.0
   Resolution: Fixed

> Standby NameNode process getLiveDatanodeStorageReport request to reduce 
> Active load
> ---
>
> Key: HDFS-16088
> URL: https://issues.apache.org/jira/browse/HDFS-16088
> Project: Hadoop HDFS
>  Issue Type: Improvement
>Reporter: tomscut
>Assignee: tomscut
>Priority: Major
>  Labels: pull-request-available
> Fix For: 3.4.0
>
> Attachments: standyby-ipcserver.jpg
>
>  Time Spent: 4h 20m
>  Remaining Estimate: 0h
>
> As with HDFS-13183, NameNodeConnector#getLiveDatanodeStorageReport() can also 
> request to SNN to reduce the ANN load.
> There are two points that need to be mentioned:
>  1. FSNamesystem#getDatanodeStorageReport() is OperationCategory.UNCHECKED, 
> so we can access SNN directly.
>  2. We can share the same UT(testBalancerRequestSBNWithHA) with 
> NameNodeConnector#getBlocks().



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[jira] [Work logged] (HDFS-16088) Standby NameNode process getLiveDatanodeStorageReport request to reduce Active load

2021-07-08 Thread ASF GitHub Bot (Jira)


 [ 
https://issues.apache.org/jira/browse/HDFS-16088?focusedWorklogId=620355=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-620355
 ]

ASF GitHub Bot logged work on HDFS-16088:
-

Author: ASF GitHub Bot
Created on: 08/Jul/21 06:11
Start Date: 08/Jul/21 06:11
Worklog Time Spent: 10m 
  Work Description: ferhui merged pull request #3140:
URL: https://github.com/apache/hadoop/pull/3140


   


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Issue Time Tracking
---

Worklog Id: (was: 620355)
Time Spent: 4h 20m  (was: 4h 10m)

> Standby NameNode process getLiveDatanodeStorageReport request to reduce 
> Active load
> ---
>
> Key: HDFS-16088
> URL: https://issues.apache.org/jira/browse/HDFS-16088
> Project: Hadoop HDFS
>  Issue Type: Improvement
>Reporter: tomscut
>Assignee: tomscut
>Priority: Major
>  Labels: pull-request-available
> Attachments: standyby-ipcserver.jpg
>
>  Time Spent: 4h 20m
>  Remaining Estimate: 0h
>
> As with HDFS-13183, NameNodeConnector#getLiveDatanodeStorageReport() can also 
> request to SNN to reduce the ANN load.
> There are two points that need to be mentioned:
>  1. FSNamesystem#getDatanodeStorageReport() is OperationCategory.UNCHECKED, 
> so we can access SNN directly.
>  2. We can share the same UT(testBalancerRequestSBNWithHA) with 
> NameNodeConnector#getBlocks().



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[jira] [Work logged] (HDFS-16088) Standby NameNode process getLiveDatanodeStorageReport request to reduce Active load

2021-07-08 Thread ASF GitHub Bot (Jira)


 [ 
https://issues.apache.org/jira/browse/HDFS-16088?focusedWorklogId=620354=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-620354
 ]

ASF GitHub Bot logged work on HDFS-16088:
-

Author: ASF GitHub Bot
Created on: 08/Jul/21 06:10
Start Date: 08/Jul/21 06:10
Worklog Time Spent: 10m 
  Work Description: ferhui commented on pull request #3140:
URL: https://github.com/apache/hadoop/pull/3140#issuecomment-876158083


   @tomscut Thanks for contribution, @Hexiaoqiao Thanks for review!
   Merged to trunk


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Issue Time Tracking
---

Worklog Id: (was: 620354)
Time Spent: 4h 10m  (was: 4h)

> Standby NameNode process getLiveDatanodeStorageReport request to reduce 
> Active load
> ---
>
> Key: HDFS-16088
> URL: https://issues.apache.org/jira/browse/HDFS-16088
> Project: Hadoop HDFS
>  Issue Type: Improvement
>Reporter: tomscut
>Assignee: tomscut
>Priority: Major
>  Labels: pull-request-available
> Attachments: standyby-ipcserver.jpg
>
>  Time Spent: 4h 10m
>  Remaining Estimate: 0h
>
> As with HDFS-13183, NameNodeConnector#getLiveDatanodeStorageReport() can also 
> request to SNN to reduce the ANN load.
> There are two points that need to be mentioned:
>  1. FSNamesystem#getDatanodeStorageReport() is OperationCategory.UNCHECKED, 
> so we can access SNN directly.
>  2. We can share the same UT(testBalancerRequestSBNWithHA) with 
> NameNodeConnector#getBlocks().



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