[jira] [Work logged] (HDFS-16200) Improve NameNode failover
[
https://issues.apache.org/jira/browse/HDFS-16200?focusedWorklogId=647654&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-647654
]
ASF GitHub Bot logged work on HDFS-16200:
-
Author: ASF GitHub Bot
Created on: 08/Sep/21 00:52
Start Date: 08/Sep/21 00:52
Worklog Time Spent: 10m
Work Description: hadoop-yetus commented on pull request #3364:
URL: https://github.com/apache/hadoop/pull/3364#issuecomment-914740874
:broken_heart: **-1 overall**
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| Reason | Tests |
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|
[jira] [Work logged] (HDFS-16200) Improve NameNode failover
[
https://issues.apache.org/jira/browse/HDFS-16200?focusedWorklogId=645133&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-645133
]
ASF GitHub Bot logged work on HDFS-16200:
-
Author: ASF GitHub Bot
Created on: 01/Sep/21 09:40
Start Date: 01/Sep/21 09:40
Worklog Time Spent: 10m
Work Description: hadoop-yetus commented on pull request #3364:
URL: https://github.com/apache/hadoop/pull/3364#issuecomment-909799030
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Private Build-1.8.0_292-8u
[jira] [Work logged] (HDFS-16200) Improve NameNode failover
[ https://issues.apache.org/jira/browse/HDFS-16200?focusedWorklogId=644853&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-644853 ] ASF GitHub Bot logged work on HDFS-16200: - Author: ASF GitHub Bot Created on: 01/Sep/21 09:10 Start Date: 01/Sep/21 09:10 Worklog Time Spent: 10m Work Description: aihuaxu opened a new pull request #3364: URL: https://github.com/apache/hadoop/pull/3364 This patch adds a configuration to skip resolving the topology for the client hosts, e.g., YARN hosts. Such topology info is useful in colocated environment but not in non-colocated env. ### How was this patch tested? unit test -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: common-issues-unsubscr...@hadoop.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org Issue Time Tracking --- Worklog Id: (was: 644853) Time Spent: 0.5h (was: 20m) > Improve NameNode failover > - > > Key: HDFS-16200 > URL: https://issues.apache.org/jira/browse/HDFS-16200 > Project: Hadoop HDFS > Issue Type: Task > Components: namanode >Affects Versions: 2.8.2 >Reporter: Aihua Xu >Assignee: Aihua Xu >Priority: Major > Labels: pull-request-available > Time Spent: 0.5h > Remaining Estimate: 0h > > In a busy cluster, we are noticing the NameNode failover takes longer time > (over 10 minutes) and it causes cluster down time during the time period. > One bottleneck locates in resolving the client host's topology when the > cluster is not colocated with the computing hosts. NameNode resolves the > client host's topology and uses it to sort the hosts where the blocks locate > in. Such topology will be cached so the next access will be efficient, while > if the standby NameNode is newly restarted, then all the client hosts, e.g., > YARN hosts need to be resolved. > Solutions can be: 1) we can expose an API in DFSAdmin to load topology cache, > or 2) we can add a new configuration in HDFS cluster to skip resolving > topology for non-colocated HDFS cluster. Since client hosts and HDFS hosts > are not colocated, it's unnecessary to sort the DataNodes for the clients. > -- 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] [Work logged] (HDFS-16200) Improve NameNode failover
[
https://issues.apache.org/jira/browse/HDFS-16200?focusedWorklogId=644708&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-644708
]
ASF GitHub Bot logged work on HDFS-16200:
-
Author: ASF GitHub Bot
Created on: 01/Sep/21 01:54
Start Date: 01/Sep/21 01:54
Worklog Time Spent: 10m
Work Description: hadoop-yetus commented on pull request #3364:
URL: https://github.com/apache/hadoop/pull/3364#issuecomment-909799030
:broken_heart: **-1 overall**
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| +1 :green_heart: | compile | 1m 25s | | trunk passed with JDK
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_ Patch Compile Tests _ |
| -1 :x: | mvninstall | 1m 10s |
[/patch-mvninstall-hadoop-hdfs-project_hadoop-hdfs.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3364/1/artifact/out/patch-mvninstall-hadoop-hdfs-project_hadoop-hdfs.txt)
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| hadoop-hdfs in the patch failed with JDK
Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04. |
| -1 :x: | javac | 1m 16s |
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Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04. |
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[jira] [Work logged] (HDFS-16200) Improve NameNode failover
[ https://issues.apache.org/jira/browse/HDFS-16200?focusedWorklogId=644687&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-644687 ] ASF GitHub Bot logged work on HDFS-16200: - Author: ASF GitHub Bot Created on: 01/Sep/21 00:16 Start Date: 01/Sep/21 00:16 Worklog Time Spent: 10m Work Description: aihuaxu opened a new pull request #3364: URL: https://github.com/apache/hadoop/pull/3364 This patch adds a configuration to skip resolving the topology for the client hosts, e.g., YARN hosts. Such topology info is useful in colocated environment but not in non-colocated env. ### How was this patch tested? unit test -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: common-issues-unsubscr...@hadoop.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org Issue Time Tracking --- Worklog Id: (was: 644687) Remaining Estimate: 0h Time Spent: 10m > Improve NameNode failover > - > > Key: HDFS-16200 > URL: https://issues.apache.org/jira/browse/HDFS-16200 > Project: Hadoop HDFS > Issue Type: Task > Components: namanode >Affects Versions: 2.8.2 >Reporter: Aihua Xu >Assignee: Aihua Xu >Priority: Major > Time Spent: 10m > Remaining Estimate: 0h > > In a busy cluster, we are noticing the NameNode failover takes longer time > (over 10 minutes) and it causes cluster down time during the time period. > One bottleneck locates in resolving the client host's topology when the > cluster is not colocated with the computing hosts. NameNode resolves the > client host's topology and uses it to sort the hosts where the blocks locate > in. Such topology will be cached so the next access will be efficient, while > if the standby NameNode is newly restarted, then all the client hosts, e.g., > YARN hosts need to be resolved. > Solutions can be: 1) we can expose an API in DFSAdmin to load topology cache, > or 2) we can add a new configuration in HDFS cluster to skip resolving > topology for non-colocated HDFS cluster. Since client hosts and HDFS hosts > are not colocated, it's unnecessary to sort the DataNodes for the clients. > -- 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
