[jira] [Updated] (HDFS-13779) Implement performFailover logic for ObserverReadProxyProvider.
[
https://issues.apache.org/jira/browse/HDFS-13779?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Erik Krogen updated HDFS-13779:
---
Resolution: Fixed
Hadoop Flags: Reviewed
Fix Version/s: HDFS-12943
Status: Resolved (was: Patch Available)
> Implement performFailover logic for ObserverReadProxyProvider.
> --
>
> Key: HDFS-13779
> URL: https://issues.apache.org/jira/browse/HDFS-13779
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: hdfs-client
>Reporter: Konstantin Shvachko
>Assignee: Erik Krogen
>Priority: Major
> Fix For: HDFS-12943
>
> Attachments: HDFS-13779-HDFS-12943.000.patch,
> HDFS-13779-HDFS-12943.001.patch, HDFS-13779-HDFS-12943.002.patch,
> HDFS-13779-HDFS-12943.003.patch, HDFS-13779-HDFS-12943.WIP00.patch
>
>
> Currently {{ObserverReadProxyProvider}} inherits {{performFailover()}} method
> from {{ConfiguredFailoverProxyProvider}}, which simply increments the index
> and switches over to another NameNode. The logic for ORPP should be smart
> enough to choose another observer, otherwise it can switch to a SBN, where
> reads are disallowed, or to an ANN, which defeats the purpose of reads from
> standby.
> This was discussed in HDFS-12976.
--
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] [Updated] (HDFS-13779) Implement performFailover logic for ObserverReadProxyProvider.
[
https://issues.apache.org/jira/browse/HDFS-13779?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Erik Krogen updated HDFS-13779:
---
Attachment: HDFS-13779-HDFS-12943.003.patch
> Implement performFailover logic for ObserverReadProxyProvider.
> --
>
> Key: HDFS-13779
> URL: https://issues.apache.org/jira/browse/HDFS-13779
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: hdfs-client
>Reporter: Konstantin Shvachko
>Assignee: Erik Krogen
>Priority: Major
> Fix For: HDFS-12943
>
> Attachments: HDFS-13779-HDFS-12943.000.patch,
> HDFS-13779-HDFS-12943.001.patch, HDFS-13779-HDFS-12943.002.patch,
> HDFS-13779-HDFS-12943.003.patch, HDFS-13779-HDFS-12943.WIP00.patch
>
>
> Currently {{ObserverReadProxyProvider}} inherits {{performFailover()}} method
> from {{ConfiguredFailoverProxyProvider}}, which simply increments the index
> and switches over to another NameNode. The logic for ORPP should be smart
> enough to choose another observer, otherwise it can switch to a SBN, where
> reads are disallowed, or to an ANN, which defeats the purpose of reads from
> standby.
> This was discussed in HDFS-12976.
--
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] [Updated] (HDFS-13779) Implement performFailover logic for ObserverReadProxyProvider.
[
https://issues.apache.org/jira/browse/HDFS-13779?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Erik Krogen updated HDFS-13779:
---
Attachment: HDFS-13779-HDFS-12943.002.patch
> Implement performFailover logic for ObserverReadProxyProvider.
> --
>
> Key: HDFS-13779
> URL: https://issues.apache.org/jira/browse/HDFS-13779
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: hdfs-client
>Reporter: Konstantin Shvachko
>Assignee: Erik Krogen
>Priority: Major
> Attachments: HDFS-13779-HDFS-12943.000.patch,
> HDFS-13779-HDFS-12943.001.patch, HDFS-13779-HDFS-12943.002.patch,
> HDFS-13779-HDFS-12943.WIP00.patch
>
>
> Currently {{ObserverReadProxyProvider}} inherits {{performFailover()}} method
> from {{ConfiguredFailoverProxyProvider}}, which simply increments the index
> and switches over to another NameNode. The logic for ORPP should be smart
> enough to choose another observer, otherwise it can switch to a SBN, where
> reads are disallowed, or to an ANN, which defeats the purpose of reads from
> standby.
> This was discussed in HDFS-12976.
--
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] [Updated] (HDFS-13779) Implement performFailover logic for ObserverReadProxyProvider.
[
https://issues.apache.org/jira/browse/HDFS-13779?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Erik Krogen updated HDFS-13779:
---
Attachment: HDFS-13779-HDFS-12943.001.patch
> Implement performFailover logic for ObserverReadProxyProvider.
> --
>
> Key: HDFS-13779
> URL: https://issues.apache.org/jira/browse/HDFS-13779
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: hdfs-client
>Reporter: Konstantin Shvachko
>Assignee: Erik Krogen
>Priority: Major
> Attachments: HDFS-13779-HDFS-12943.000.patch,
> HDFS-13779-HDFS-12943.001.patch, HDFS-13779-HDFS-12943.WIP00.patch
>
>
> Currently {{ObserverReadProxyProvider}} inherits {{performFailover()}} method
> from {{ConfiguredFailoverProxyProvider}}, which simply increments the index
> and switches over to another NameNode. The logic for ORPP should be smart
> enough to choose another observer, otherwise it can switch to a SBN, where
> reads are disallowed, or to an ANN, which defeats the purpose of reads from
> standby.
> This was discussed in HDFS-12976.
--
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] [Updated] (HDFS-13779) Implement performFailover logic for ObserverReadProxyProvider.
[
https://issues.apache.org/jira/browse/HDFS-13779?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Erik Krogen updated HDFS-13779:
---
Status: Patch Available (was: In Progress)
Attached v000 patch based on recent changes to
{{ConfiguredFailoverProxyProvider}} and {{ObserverReadProxyProvider}}.
This takes the approach of scanning through each proxy and checking the state;
if it is not correct, try another one. Once a correct (observer) proxy is
found, stay on that one until it fails. This is essentially a copy of how
{{ConfiguredFailoverProxyProvider}} is implemented.
I have a few outstanding TODOs about comments in the patch, but otherwise it
should be ready for review.
> Implement performFailover logic for ObserverReadProxyProvider.
> --
>
> Key: HDFS-13779
> URL: https://issues.apache.org/jira/browse/HDFS-13779
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: hdfs-client
>Reporter: Konstantin Shvachko
>Assignee: Erik Krogen
>Priority: Major
> Attachments: HDFS-13779-HDFS-12943.000.patch,
> HDFS-13779-HDFS-12943.WIP00.patch
>
>
> Currently {{ObserverReadProxyProvider}} inherits {{performFailover()}} method
> from {{ConfiguredFailoverProxyProvider}}, which simply increments the index
> and switches over to another NameNode. The logic for ORPP should be smart
> enough to choose another observer, otherwise it can switch to a SBN, where
> reads are disallowed, or to an ANN, which defeats the purpose of reads from
> standby.
> This was discussed in HDFS-12976.
--
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] [Updated] (HDFS-13779) Implement performFailover logic for ObserverReadProxyProvider.
[
https://issues.apache.org/jira/browse/HDFS-13779?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Erik Krogen updated HDFS-13779:
---
Attachment: HDFS-13779-HDFS-12943.000.patch
> Implement performFailover logic for ObserverReadProxyProvider.
> --
>
> Key: HDFS-13779
> URL: https://issues.apache.org/jira/browse/HDFS-13779
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: hdfs-client
>Reporter: Konstantin Shvachko
>Assignee: Erik Krogen
>Priority: Major
> Attachments: HDFS-13779-HDFS-12943.000.patch,
> HDFS-13779-HDFS-12943.WIP00.patch
>
>
> Currently {{ObserverReadProxyProvider}} inherits {{performFailover()}} method
> from {{ConfiguredFailoverProxyProvider}}, which simply increments the index
> and switches over to another NameNode. The logic for ORPP should be smart
> enough to choose another observer, otherwise it can switch to a SBN, where
> reads are disallowed, or to an ANN, which defeats the purpose of reads from
> standby.
> This was discussed in HDFS-12976.
--
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] [Updated] (HDFS-13779) Implement performFailover logic for ObserverReadProxyProvider.
[
https://issues.apache.org/jira/browse/HDFS-13779?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Erik Krogen updated HDFS-13779:
---
Attachment: HDFS-13779-HDFS-12943.WIP00.patch
> Implement performFailover logic for ObserverReadProxyProvider.
> --
>
> Key: HDFS-13779
> URL: https://issues.apache.org/jira/browse/HDFS-13779
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: hdfs-client
>Reporter: Konstantin Shvachko
>Assignee: Erik Krogen
>Priority: Major
> Attachments: HDFS-13779-HDFS-12943.WIP00.patch
>
>
> Currently {{ObserverReadProxyProvider}} inherits {{performFailover()}} method
> from {{ConfiguredFailoverProxyProvider}}, which simply increments the index
> and switches over to another NameNode. The logic for ORPP should be smart
> enough to choose another observer, otherwise it can switch to a SBN, where
> reads are disallowed, or to an ANN, which defeats the purpose of reads from
> standby.
> This was discussed in HDFS-12976.
--
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
