subject:"\[jira\] \[Work logged\] \(HDFS\-16257\) \[HDFS\] \[RBF\] Guava cache performance issue in Router MountTableResolver"

[jira] [Work logged] (HDFS-16257) [HDFS] [RBF] Guava cache performance issue in Router MountTableResolver

2021-10-18 Thread ASF GitHub Bot (Jira)



 [ 
https://issues.apache.org/jira/browse/HDFS-16257?focusedWorklogId=666238=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-666238
 ]

ASF GitHub Bot logged work on HDFS-16257:
-

Author: ASF GitHub Bot
Created on: 18/Oct/21 11:00
Start Date: 18/Oct/21 11:00
Worklog Time Spent: 10m 
  Work Description: aajisaka commented on pull request #3524:
URL: https://github.com/apache/hadoop/pull/3524#issuecomment-945649327


   Thank you @symious for your contribution and thanks @goiri for your review.


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Issue Time Tracking
---

Worklog Id: (was: 666238)
Time Spent: 3h  (was: 2h 50m)

> [HDFS] [RBF] Guava cache performance issue in Router MountTableResolver
> ---
>
> Key: HDFS-16257
> URL: https://issues.apache.org/jira/browse/HDFS-16257
> Project: Hadoop HDFS
>  Issue Type: Improvement
>Affects Versions: 2.10.1
>Reporter: Janus Chow
>Assignee: Janus Chow
>Priority: Major
>  Labels: pull-request-available
> Fix For: 2.10.2
>
>  Time Spent: 3h
>  Remaining Estimate: 0h
>
> Branch 2.10.1 uses guava version of 11.0.2, which has a bug which affects the 
> performance of cache, which was mentioned in HDFS-13821.
> Since upgrading guava version seems affecting too much, this ticket is to add 
> a configuration setting when initializing cache to walk around this issue.



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[jira] [Work logged] (HDFS-16257) [HDFS] [RBF] Guava cache performance issue in Router MountTableResolver

2021-10-18 Thread ASF GitHub Bot (Jira)



 [ 
https://issues.apache.org/jira/browse/HDFS-16257?focusedWorklogId=666236=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-666236
 ]

ASF GitHub Bot logged work on HDFS-16257:
-

Author: ASF GitHub Bot
Created on: 18/Oct/21 10:58
Start Date: 18/Oct/21 10:58
Worklog Time Spent: 10m 
  Work Description: aajisaka merged pull request #3524:
URL: https://github.com/apache/hadoop/pull/3524


   


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Issue Time Tracking
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Worklog Id: (was: 666236)
Time Spent: 2h 50m  (was: 2h 40m)

> [HDFS] [RBF] Guava cache performance issue in Router MountTableResolver
> ---
>
> Key: HDFS-16257
> URL: https://issues.apache.org/jira/browse/HDFS-16257
> Project: Hadoop HDFS
>  Issue Type: Improvement
>Affects Versions: 2.10.1
>Reporter: Janus Chow
>Assignee: Janus Chow
>Priority: Major
>  Labels: pull-request-available
>  Time Spent: 2h 50m
>  Remaining Estimate: 0h
>
> Branch 2.10.1 uses guava version of 11.0.2, which has a bug which affects the 
> performance of cache, which was mentioned in HDFS-13821.
> Since upgrading guava version seems affecting too much, this ticket is to add 
> a configuration setting when initializing cache to walk around this issue.



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[jira] [Work logged] (HDFS-16257) [HDFS] [RBF] Guava cache performance issue in Router MountTableResolver

2021-10-07 Thread ASF GitHub Bot (Jira)



 [ 
https://issues.apache.org/jira/browse/HDFS-16257?focusedWorklogId=662215=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-662215
 ]

ASF GitHub Bot logged work on HDFS-16257:
-

Author: ASF GitHub Bot
Created on: 07/Oct/21 23:26
Start Date: 07/Oct/21 23:26
Worklog Time Spent: 10m 
  Work Description: symious commented on a change in pull request #3524:
URL: https://github.com/apache/hadoop/pull/3524#discussion_r72379



##
File path: 
hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/resolver/MountTableResolver.java
##
@@ -138,6 +138,8 @@ public MountTableResolver(Configuration conf, Router 
routerService,
   FEDERATION_MOUNT_TABLE_MAX_CACHE_SIZE,
   FEDERATION_MOUNT_TABLE_MAX_CACHE_SIZE_DEFAULT);
   this.locationCache = CacheBuilder.newBuilder()
+  // To warkaround guava bug 
https://github.com/google/guava/issues/1055

Review comment:
   Updated, please help to check.




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Issue Time Tracking
---

Worklog Id: (was: 662215)
Time Spent: 2h 40m  (was: 2.5h)

> [HDFS] [RBF] Guava cache performance issue in Router MountTableResolver
> ---
>
> Key: HDFS-16257
> URL: https://issues.apache.org/jira/browse/HDFS-16257
> Project: Hadoop HDFS
>  Issue Type: Improvement
>Affects Versions: 2.10.1
>Reporter: Janus Chow
>Assignee: Janus Chow
>Priority: Major
>  Labels: pull-request-available
>  Time Spent: 2h 40m
>  Remaining Estimate: 0h
>
> Branch 2.10.1 uses guava version of 11.0.2, which has a bug which affects the 
> performance of cache, which was mentioned in HDFS-13821.
> Since upgrading guava version seems affecting too much, this ticket is to add 
> a configuration setting when initializing cache to walk around this issue.



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[jira] [Work logged] (HDFS-16257) [HDFS] [RBF] Guava cache performance issue in Router MountTableResolver

2021-10-07 Thread ASF GitHub Bot (Jira)



 [ 
https://issues.apache.org/jira/browse/HDFS-16257?focusedWorklogId=662047=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-662047
 ]

ASF GitHub Bot logged work on HDFS-16257:
-

Author: ASF GitHub Bot
Created on: 07/Oct/21 23:11
Start Date: 07/Oct/21 23:11
Worklog Time Spent: 10m 
  Work Description: hadoop-yetus commented on pull request #3524:
URL: https://github.com/apache/hadoop/pull/3524#issuecomment-937409811






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Issue Time Tracking
---

Worklog Id: (was: 662047)
Time Spent: 2.5h  (was: 2h 20m)

> [HDFS] [RBF] Guava cache performance issue in Router MountTableResolver
> ---
>
> Key: HDFS-16257
> URL: https://issues.apache.org/jira/browse/HDFS-16257
> Project: Hadoop HDFS
>  Issue Type: Improvement
>Affects Versions: 2.10.1
>Reporter: Janus Chow
>Assignee: Janus Chow
>Priority: Major
>  Labels: pull-request-available
>  Time Spent: 2.5h
>  Remaining Estimate: 0h
>
> Branch 2.10.1 uses guava version of 11.0.2, which has a bug which affects the 
> performance of cache, which was mentioned in HDFS-13821.
> Since upgrading guava version seems affecting too much, this ticket is to add 
> a configuration setting when initializing cache to walk around this issue.



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[jira] [Work logged] (HDFS-16257) [HDFS] [RBF] Guava cache performance issue in Router MountTableResolver

2021-10-07 Thread ASF GitHub Bot (Jira)



 [ 
https://issues.apache.org/jira/browse/HDFS-16257?focusedWorklogId=661631=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-661631
 ]

ASF GitHub Bot logged work on HDFS-16257:
-

Author: ASF GitHub Bot
Created on: 07/Oct/21 14:07
Start Date: 07/Oct/21 14:07
Worklog Time Spent: 10m 
  Work Description: hadoop-yetus commented on pull request #3524:
URL: https://github.com/apache/hadoop/pull/3524#issuecomment-937827956


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[jira] [Work logged] (HDFS-16257) [HDFS] [RBF] Guava cache performance issue in Router MountTableResolver

2021-10-07 Thread ASF GitHub Bot (Jira)



 [ 
https://issues.apache.org/jira/browse/HDFS-16257?focusedWorklogId=661626=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-661626
 ]

ASF GitHub Bot logged work on HDFS-16257:
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Author: ASF GitHub Bot
Created on: 07/Oct/21 14:01
Start Date: 07/Oct/21 14:01
Worklog Time Spent: 10m 
  Work Description: hadoop-yetus commented on pull request #3524:
URL: https://github.com/apache/hadoop/pull/3524#issuecomment-937822584


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[jira] [Work logged] (HDFS-16257) [HDFS] [RBF] Guava cache performance issue in Router MountTableResolver

2021-10-07 Thread ASF GitHub Bot (Jira)



 [ 
https://issues.apache.org/jira/browse/HDFS-16257?focusedWorklogId=661362=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-661362
 ]

ASF GitHub Bot logged work on HDFS-16257:
-

Author: ASF GitHub Bot
Created on: 07/Oct/21 07:25
Start Date: 07/Oct/21 07:25
Worklog Time Spent: 10m 
  Work Description: hadoop-yetus commented on pull request #3524:
URL: https://github.com/apache/hadoop/pull/3524#issuecomment-937526316


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[jira] [Work logged] (HDFS-16257) [HDFS] [RBF] Guava cache performance issue in Router MountTableResolver

2021-10-07 Thread ASF GitHub Bot (Jira)



 [ 
https://issues.apache.org/jira/browse/HDFS-16257?focusedWorklogId=661348=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-661348
 ]

ASF GitHub Bot logged work on HDFS-16257:
-

Author: ASF GitHub Bot
Created on: 07/Oct/21 06:56
Start Date: 07/Oct/21 06:56
Worklog Time Spent: 10m 
  Work Description: hadoop-yetus commented on pull request #3524:
URL: https://github.com/apache/hadoop/pull/3524#issuecomment-937508312


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[jira] [Work logged] (HDFS-16257) [HDFS] [RBF] Guava cache performance issue in Router MountTableResolver

2021-10-06 Thread ASF GitHub Bot (Jira)



 [ 
https://issues.apache.org/jira/browse/HDFS-16257?focusedWorklogId=661297=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-661297
 ]

ASF GitHub Bot logged work on HDFS-16257:
-

Author: ASF GitHub Bot
Created on: 07/Oct/21 04:05
Start Date: 07/Oct/21 04:05
Worklog Time Spent: 10m 
  Work Description: hadoop-yetus commented on pull request #3524:
URL: https://github.com/apache/hadoop/pull/3524#issuecomment-937425783


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To

[jira] [Work logged] (HDFS-16257) [HDFS] [RBF] Guava cache performance issue in Router MountTableResolver

2021-10-06 Thread ASF GitHub Bot (Jira)



 [ 
https://issues.apache.org/jira/browse/HDFS-16257?focusedWorklogId=661293=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-661293
 ]

ASF GitHub Bot logged work on HDFS-16257:
-

Author: ASF GitHub Bot
Created on: 07/Oct/21 03:22
Start Date: 07/Oct/21 03:22
Worklog Time Spent: 10m 
  Work Description: hadoop-yetus commented on pull request #3524:
URL: https://github.com/apache/hadoop/pull/3524#issuecomment-937412397


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To

[jira] [Work logged] (HDFS-16257) [HDFS] [RBF] Guava cache performance issue in Router MountTableResolver

2021-10-06 Thread ASF GitHub Bot (Jira)



 [ 
https://issues.apache.org/jira/browse/HDFS-16257?focusedWorklogId=661290=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-661290
 ]

ASF GitHub Bot logged work on HDFS-16257:
-

Author: ASF GitHub Bot
Created on: 07/Oct/21 03:15
Start Date: 07/Oct/21 03:15
Worklog Time Spent: 10m 
  Work Description: hadoop-yetus commented on pull request #3524:
URL: https://github.com/apache/hadoop/pull/3524#issuecomment-937409811


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[jira] [Work logged] (HDFS-16257) [HDFS] [RBF] Guava cache performance issue in Router MountTableResolver

2021-10-06 Thread ASF GitHub Bot (Jira)



 [ 
https://issues.apache.org/jira/browse/HDFS-16257?focusedWorklogId=661279=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-661279
 ]

ASF GitHub Bot logged work on HDFS-16257:
-

Author: ASF GitHub Bot
Created on: 07/Oct/21 02:19
Start Date: 07/Oct/21 02:19
Worklog Time Spent: 10m 
  Work Description: symious commented on a change in pull request #3524:
URL: https://github.com/apache/hadoop/pull/3524#discussion_r72379



##
File path: 
hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/resolver/MountTableResolver.java
##
@@ -138,6 +138,8 @@ public MountTableResolver(Configuration conf, Router 
routerService,
   FEDERATION_MOUNT_TABLE_MAX_CACHE_SIZE,
   FEDERATION_MOUNT_TABLE_MAX_CACHE_SIZE_DEFAULT);
   this.locationCache = CacheBuilder.newBuilder()
+  // To warkaround guava bug 
https://github.com/google/guava/issues/1055

Review comment:
   Updated, please help to check.




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Issue Time Tracking
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Worklog Id: (was: 661279)
Time Spent: 1h 10m  (was: 1h)

> [HDFS] [RBF] Guava cache performance issue in Router MountTableResolver
> ---
>
> Key: HDFS-16257
> URL: https://issues.apache.org/jira/browse/HDFS-16257
> Project: Hadoop HDFS
>  Issue Type: Improvement
>Affects Versions: 2.10.1
>Reporter: Janus Chow
>Assignee: Janus Chow
>Priority: Major
>  Labels: pull-request-available
>  Time Spent: 1h 10m
>  Remaining Estimate: 0h
>
> Branch 2.10.1 uses guava version of 11.0.2, which has a bug which affects the 
> performance of cache, which was mentioned in HDFS-13821.
> Since upgrading guava version seems affecting too much, this ticket is to add 
> a configuration setting when initializing cache to walk around this issue.



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[jira] [Work logged] (HDFS-16257) [HDFS] [RBF] Guava cache performance issue in Router MountTableResolver

2021-10-06 Thread ASF GitHub Bot (Jira)



 [ 
https://issues.apache.org/jira/browse/HDFS-16257?focusedWorklogId=661139=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-661139
 ]

ASF GitHub Bot logged work on HDFS-16257:
-

Author: ASF GitHub Bot
Created on: 06/Oct/21 19:09
Start Date: 06/Oct/21 19:09
Worklog Time Spent: 10m 
  Work Description: goiri commented on a change in pull request #3524:
URL: https://github.com/apache/hadoop/pull/3524#discussion_r723600325



##
File path: 
hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/resolver/MountTableResolver.java
##
@@ -138,6 +138,8 @@ public MountTableResolver(Configuration conf, Router 
routerService,
   FEDERATION_MOUNT_TABLE_MAX_CACHE_SIZE,
   FEDERATION_MOUNT_TABLE_MAX_CACHE_SIZE_DEFAULT);
   this.locationCache = CacheBuilder.newBuilder()
+  // To warkaround guava bug 
https://github.com/google/guava/issues/1055

Review comment:
   mention in what version this is fixed

##
File path: 
hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/resolver/MountTableResolver.java
##
@@ -138,6 +138,8 @@ public MountTableResolver(Configuration conf, Router 
routerService,
   FEDERATION_MOUNT_TABLE_MAX_CACHE_SIZE,
   FEDERATION_MOUNT_TABLE_MAX_CACHE_SIZE_DEFAULT);
   this.locationCache = CacheBuilder.newBuilder()
+  // To warkaround guava bug 
https://github.com/google/guava/issues/1055

Review comment:
   work around




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Worklog Id: (was: 661139)
Time Spent: 1h  (was: 50m)

> [HDFS] [RBF] Guava cache performance issue in Router MountTableResolver
> ---
>
> Key: HDFS-16257
> URL: https://issues.apache.org/jira/browse/HDFS-16257
> Project: Hadoop HDFS
>  Issue Type: Improvement
>Affects Versions: 2.10.1
>Reporter: Janus Chow
>Assignee: Janus Chow
>Priority: Major
>  Labels: pull-request-available
>  Time Spent: 1h
>  Remaining Estimate: 0h
>
> Branch 2.10.1 uses guava version of 11.0.2, which has a bug which affects the 
> performance of cache, which was mentioned in HDFS-13821.
> Since upgrading guava version seems affecting too much, this ticket is to add 
> a configuration setting when initializing cache to walk around this issue.



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[jira] [Work logged] (HDFS-16257) [HDFS] [RBF] Guava cache performance issue in Router MountTableResolver

2021-10-06 Thread ASF GitHub Bot (Jira)



 [ 
https://issues.apache.org/jira/browse/HDFS-16257?focusedWorklogId=661001=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-661001
 ]

ASF GitHub Bot logged work on HDFS-16257:
-

Author: ASF GitHub Bot
Created on: 06/Oct/21 15:30
Start Date: 06/Oct/21 15:30
Worklog Time Spent: 10m 
  Work Description: symious commented on pull request #3524:
URL: https://github.com/apache/hadoop/pull/3524#issuecomment-936503908


   @ayushtkn Thanks for the review.
   
   Trunk uses guava from 
org.apache.hadoop.thirdparty.hadoop-shaded-guava:1.1.1, the guava cache in it 
should have fixed the bug.
   Tested with the above dependency, the overhead is eliminated.


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Issue Time Tracking
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Worklog Id: (was: 661001)
Time Spent: 50m  (was: 40m)

> [HDFS] [RBF] Guava cache performance issue in Router MountTableResolver
> ---
>
> Key: HDFS-16257
> URL: https://issues.apache.org/jira/browse/HDFS-16257
> Project: Hadoop HDFS
>  Issue Type: Improvement
>Affects Versions: 2.10.1
>Reporter: Janus Chow
>Assignee: Janus Chow
>Priority: Major
>  Labels: pull-request-available
>  Time Spent: 50m
>  Remaining Estimate: 0h
>
> Branch 2.10.1 uses guava version of 11.0.2, which has a bug which affects the 
> performance of cache, which was mentioned in HDFS-13821.
> Since upgrading guava version seems affecting too much, this ticket is to add 
> a configuration setting when initializing cache to walk around this issue.



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[jira] [Work logged] (HDFS-16257) [HDFS] [RBF] Guava cache performance issue in Router MountTableResolver

2021-10-06 Thread ASF GitHub Bot (Jira)



 [ 
https://issues.apache.org/jira/browse/HDFS-16257?focusedWorklogId=660970=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-660970
 ]

ASF GitHub Bot logged work on HDFS-16257:
-

Author: ASF GitHub Bot
Created on: 06/Oct/21 14:50
Start Date: 06/Oct/21 14:50
Worklog Time Spent: 10m 
  Work Description: ayushtkn commented on pull request #3524:
URL: https://github.com/apache/hadoop/pull/3524#issuecomment-936419231


   Can we have this change merged to trunk as well, and then backport it till 
2.10? Any pointers, can this have some adverse affects on trunk version of 
Guava?


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Time Spent: 40m  (was: 0.5h)

> [HDFS] [RBF] Guava cache performance issue in Router MountTableResolver
> ---
>
> Key: HDFS-16257
> URL: https://issues.apache.org/jira/browse/HDFS-16257
> Project: Hadoop HDFS
>  Issue Type: Improvement
>Affects Versions: 2.10.1
>Reporter: Janus Chow
>Assignee: Janus Chow
>Priority: Major
>  Labels: pull-request-available
>  Time Spent: 40m
>  Remaining Estimate: 0h
>
> Branch 2.10.1 uses guava version of 11.0.2, which has a bug which affects the 
> performance of cache, which was mentioned in HDFS-13821.
> Since upgrading guava version seems affecting too much, this ticket is to add 
> a configuration setting when initializing cache to walk around this issue.



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[jira] [Work logged] (HDFS-16257) [HDFS] [RBF] Guava cache performance issue in Router MountTableResolver

2021-10-06 Thread ASF GitHub Bot (Jira)



 [ 
https://issues.apache.org/jira/browse/HDFS-16257?focusedWorklogId=660781=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-660781
 ]

ASF GitHub Bot logged work on HDFS-16257:
-

Author: ASF GitHub Bot
Created on: 06/Oct/21 08:57
Start Date: 06/Oct/21 08:57
Worklog Time Spent: 10m 
  Work Description: hadoop-yetus commented on pull request #3524:
URL: https://github.com/apache/hadoop/pull/3524#issuecomment-935785881


   :broken_heart: **-1 overall**
   
   
   
   
   
   
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|
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[jira] [Work logged] (HDFS-16257) [HDFS] [RBF] Guava cache performance issue in Router MountTableResolver

2021-10-06 Thread ASF GitHub Bot (Jira)



 [ 
https://issues.apache.org/jira/browse/HDFS-16257?focusedWorklogId=660756=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-660756
 ]

ASF GitHub Bot logged work on HDFS-16257:
-

Author: ASF GitHub Bot
Created on: 06/Oct/21 08:02
Start Date: 06/Oct/21 08:02
Worklog Time Spent: 10m 
  Work Description: symious commented on pull request #3524:
URL: https://github.com/apache/hadoop/pull/3524#issuecomment-935700482


   @goiri Could you help to review this PR?


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Issue Time Tracking
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Worklog Id: (was: 660756)
Time Spent: 20m  (was: 10m)

> [HDFS] [RBF] Guava cache performance issue in Router MountTableResolver
> ---
>
> Key: HDFS-16257
> URL: https://issues.apache.org/jira/browse/HDFS-16257
> Project: Hadoop HDFS
>  Issue Type: Improvement
>Affects Versions: 2.10.1
>Reporter: Janus Chow
>Assignee: Janus Chow
>Priority: Major
>  Labels: pull-request-available
>  Time Spent: 20m
>  Remaining Estimate: 0h
>
> Branch 2.10.1 uses guava version of 11.0.2, which has a bug which affects the 
> performance of cache, which was mentioned in HDFS-13821.
> Since upgrading guava version seems affecting too much, this ticket is to add 
> a configuration setting when initializing cache to walk around this issue.



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[jira] [Work logged] (HDFS-16257) [HDFS] [RBF] Guava cache performance issue in Router MountTableResolver

2021-10-06 Thread ASF GitHub Bot (Jira)



 [ 
https://issues.apache.org/jira/browse/HDFS-16257?focusedWorklogId=660754=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-660754
 ]

ASF GitHub Bot logged work on HDFS-16257:
-

Author: ASF GitHub Bot
Created on: 06/Oct/21 08:02
Start Date: 06/Oct/21 08:02
Worklog Time Spent: 10m 
  Work Description: symious opened a new pull request #3524:
URL: https://github.com/apache/hadoop/pull/3524


   ### Description of PR
   
   Branch 2.10.1 uses guava version of 11.0.2, which has a bug which affects 
the performance of cache, which was mentioned in HDFS-13821.
   
   Since upgrading guava version seems affecting too much, this ticket is to 
add a configuration setting when initializing cache to walk around this issue.
   
   ### How was this patch tested?
   
   Locally tested.
   
   ### For code changes:
   
   - [x] Does the title or this PR starts with the corresponding JIRA issue id 
(e.g. 'HADOOP-17799. Your PR title ...')?
   - [ ] Object storage: have the integration tests been executed and the 
endpoint declared according to the connector-specific documentation?
   - [ ] If adding new dependencies to the code, are these dependencies 
licensed in a way that is compatible for inclusion under [ASF 
2.0](http://www.apache.org/legal/resolved.html#category-a)?
   - [ ] If applicable, have you updated the `LICENSE`, `LICENSE-binary`, 
`NOTICE-binary` files?
   
   


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> [HDFS] [RBF] Guava cache performance issue in Router MountTableResolver
> ---
>
> Key: HDFS-16257
> URL: https://issues.apache.org/jira/browse/HDFS-16257
> Project: Hadoop HDFS
>  Issue Type: Improvement
>Affects Versions: 2.10.1
>Reporter: Janus Chow
>Assignee: Janus Chow
>Priority: Major
>  Time Spent: 10m
>  Remaining Estimate: 0h
>
> Branch 2.10.1 uses guava version of 11.0.2, which has a bug which affects the 
> performance of cache, which was mentioned in HDFS-13821.
> Since upgrading guava version seems affecting too much, this ticket is to add 
> a configuration setting when initializing cache to walk around this issue.



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[jira] [Work logged] (HDFS-16257) [HDFS] [RBF] Guava cache performance issue in Router MountTableResolver

[jira] [Work logged] (HDFS-16257) [HDFS] [RBF] Guava cache performance issue in Router MountTableResolver

[jira] [Work logged] (HDFS-16257) [HDFS] [RBF] Guava cache performance issue in Router MountTableResolver

[jira] [Work logged] (HDFS-16257) [HDFS] [RBF] Guava cache performance issue in Router MountTableResolver

[jira] [Work logged] (HDFS-16257) [HDFS] [RBF] Guava cache performance issue in Router MountTableResolver

[jira] [Work logged] (HDFS-16257) [HDFS] [RBF] Guava cache performance issue in Router MountTableResolver

[jira] [Work logged] (HDFS-16257) [HDFS] [RBF] Guava cache performance issue in Router MountTableResolver

[jira] [Work logged] (HDFS-16257) [HDFS] [RBF] Guava cache performance issue in Router MountTableResolver

[jira] [Work logged] (HDFS-16257) [HDFS] [RBF] Guava cache performance issue in Router MountTableResolver

[jira] [Work logged] (HDFS-16257) [HDFS] [RBF] Guava cache performance issue in Router MountTableResolver

[jira] [Work logged] (HDFS-16257) [HDFS] [RBF] Guava cache performance issue in Router MountTableResolver

[jira] [Work logged] (HDFS-16257) [HDFS] [RBF] Guava cache performance issue in Router MountTableResolver

[jira] [Work logged] (HDFS-16257) [HDFS] [RBF] Guava cache performance issue in Router MountTableResolver

[jira] [Work logged] (HDFS-16257) [HDFS] [RBF] Guava cache performance issue in Router MountTableResolver

[jira] [Work logged] (HDFS-16257) [HDFS] [RBF] Guava cache performance issue in Router MountTableResolver

[jira] [Work logged] (HDFS-16257) [HDFS] [RBF] Guava cache performance issue in Router MountTableResolver

[jira] [Work logged] (HDFS-16257) [HDFS] [RBF] Guava cache performance issue in Router MountTableResolver

[jira] [Work logged] (HDFS-16257) [HDFS] [RBF] Guava cache performance issue in Router MountTableResolver

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