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Posted to reviews@kudu.apache.org by "Alexey Serbin (Code Review)" <ge...@cloudera.org> on 2018/03/12 06:10:03 UTC
[kudu-CR] [release notes] notes on 3-4-3 replica management scheme
Alexey Serbin has uploaded this change for review. ( http://gerrit.cloudera.org:8080/9577
Change subject: [release_notes] notes on 3-4-3 replica management scheme
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[release_notes] notes on 3-4-3 replica management scheme
Change-Id: Icfb1c4000abe5e8dce23ff4c840f05108ac56d5a
---
M docs/release_notes.adoc
1 file changed, 12 insertions(+), 0 deletions(-)
git pull ssh://gerrit.cloudera.org:29418/kudu refs/changes/77/9577/1
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Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-MessageType: newchange
Gerrit-Change-Id: Icfb1c4000abe5e8dce23ff4c840f05108ac56d5a
Gerrit-Change-Number: 9577
Gerrit-PatchSet: 1
Gerrit-Owner: Alexey Serbin <as...@cloudera.com>
[kudu-CR] [release notes] notes on 3-4-3 replica management scheme
Posted by "Alexey Serbin (Code Review)" <ge...@cloudera.org>.
Alexey Serbin has posted comments on this change. ( http://gerrit.cloudera.org:8080/9577 )
Change subject: [release_notes] notes on 3-4-3 replica management scheme
......................................................................
Patch Set 1:
(1 comment)
http://gerrit.cloudera.org:8080/#/c/9577/1/docs/release_notes.adoc
File docs/release_notes.adoc:
http://gerrit.cloudera.org:8080/#/c/9577/1/docs/release_notes.adoc@58
PS1, Line 58: * KUDU-1097: 3-4-3 replica management scheme is used by default. The new 3-4-3
> Is the concept of 3-2-3 and 3-4-3 completely new to users? I know it's been
Good point. I'll add some notes on that and squash this update with the update on non-possible rolling upgrade from 1.6 to 1.7 due to the update of the replica management scheme.
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Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: Icfb1c4000abe5e8dce23ff4c840f05108ac56d5a
Gerrit-Change-Number: 9577
Gerrit-PatchSet: 1
Gerrit-Owner: Alexey Serbin <as...@cloudera.com>
Gerrit-Reviewer: Alexey Serbin <as...@cloudera.com>
Gerrit-Reviewer: Grant Henke <gr...@gmail.com>
Gerrit-Reviewer: Kudu Jenkins
Gerrit-Reviewer: Mike Percy <mp...@apache.org>
Gerrit-Comment-Date: Mon, 12 Mar 2018 17:51:47 +0000
Gerrit-HasComments: Yes
[kudu-CR] [release notes] notes on 3-4-3 replica management scheme
Posted by "Alexey Serbin (Code Review)" <ge...@cloudera.org>.
Alexey Serbin has abandoned this change. ( http://gerrit.cloudera.org:8080/9577 )
Change subject: [release_notes] notes on 3-4-3 replica management scheme
......................................................................
Abandoned
Will be merged with https://gerrit.cloudera.org/#/c/9571/
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Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-MessageType: abandon
Gerrit-Change-Id: Icfb1c4000abe5e8dce23ff4c840f05108ac56d5a
Gerrit-Change-Number: 9577
Gerrit-PatchSet: 1
Gerrit-Owner: Alexey Serbin <as...@cloudera.com>
Gerrit-Reviewer: Alexey Serbin <as...@cloudera.com>
Gerrit-Reviewer: Grant Henke <gr...@gmail.com>
Gerrit-Reviewer: Kudu Jenkins
Gerrit-Reviewer: Mike Percy <mp...@apache.org>
[kudu-CR] [release notes] notes on 3-4-3 replica management scheme
Posted by "Grant Henke (Code Review)" <ge...@cloudera.org>.
Grant Henke has posted comments on this change. ( http://gerrit.cloudera.org:8080/9577 )
Change subject: [release_notes] notes on 3-4-3 replica management scheme
......................................................................
Patch Set 1:
(1 comment)
http://gerrit.cloudera.org:8080/#/c/9577/1/docs/release_notes.adoc
File docs/release_notes.adoc:
http://gerrit.cloudera.org:8080/#/c/9577/1/docs/release_notes.adoc@58
PS1, Line 58: * KUDU-1097: 3-4-3 replica management scheme is used by default. The new 3-4-3
Is the concept of 3-2-3 and 3-4-3 completely new to users? I know it's been the shorthand terminology of the feature for a while. But it might be worth defining what it is. Something like: "Kudu now adds a replica before removing a bad replica instead of aggressively removing replicas before a replacement is ready." Or perhaps calling it "replace first" vs "evict first" since I think replication factors other than 3 can be used.
What happens if the replication factor is 5? Does it still replace first?
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Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: Icfb1c4000abe5e8dce23ff4c840f05108ac56d5a
Gerrit-Change-Number: 9577
Gerrit-PatchSet: 1
Gerrit-Owner: Alexey Serbin <as...@cloudera.com>
Gerrit-Reviewer: Grant Henke <gr...@gmail.com>
Gerrit-Reviewer: Kudu Jenkins
Gerrit-Reviewer: Mike Percy <mp...@apache.org>
Gerrit-Comment-Date: Mon, 12 Mar 2018 13:34:31 +0000
Gerrit-HasComments: Yes
[kudu-CR] [release notes] notes on 3-4-3 replica management scheme
Posted by "Dan Burkert (Code Review)" <ge...@cloudera.org>.
Dan Burkert has posted comments on this change. ( http://gerrit.cloudera.org:8080/9577 )
Change subject: [release_notes] notes on 3-4-3 replica management scheme
......................................................................
Patch Set 1:
(1 comment)
http://gerrit.cloudera.org:8080/#/c/9577/1/docs/release_notes.adoc
File docs/release_notes.adoc:
http://gerrit.cloudera.org:8080/#/c/9577/1/docs/release_notes.adoc@58
PS1, Line 58: * KUDU-1097: 3-4-3 replica management scheme is used by default. The new 3-4-3
> Good point. I'll add some notes on that and squash this update with the up
I think this should be in the 'new features' section, considering that it's an option with its own flag.
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Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: Icfb1c4000abe5e8dce23ff4c840f05108ac56d5a
Gerrit-Change-Number: 9577
Gerrit-PatchSet: 1
Gerrit-Owner: Alexey Serbin <as...@cloudera.com>
Gerrit-Reviewer: Alexey Serbin <as...@cloudera.com>
Gerrit-Reviewer: Dan Burkert <da...@apache.org>
Gerrit-Reviewer: Grant Henke <gr...@gmail.com>
Gerrit-Reviewer: Kudu Jenkins
Gerrit-Reviewer: Mike Percy <mp...@apache.org>
Gerrit-Comment-Date: Tue, 13 Mar 2018 19:09:50 +0000
Gerrit-HasComments: Yes