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Posted to commits@cassandra.apache.org by "Brandon Williams (JIRA)" <ji...@apache.org> on 2010/07/19 02:23:49 UTC
[jira] Created: (CASSANDRA-1296) DES improvements
DES improvements
----------------
Key: CASSANDRA-1296
URL: https://issues.apache.org/jira/browse/CASSANDRA-1296
Project: Cassandra
Issue Type: Improvement
Affects Versions: 0.7
Reporter: Brandon Williams
Assignee: Brandon Williams
Priority: Minor
Fix For: 0.7
Changes to include:
a) fixing the offer() bug where we never track anything past WINDOW_SIZE reads (doh)
b) setting the reset interval to 10m as intended, instead of 1m
c) increasing the UPDATES_PER_INTERVAL since they are cheap and this gets us more recent data
d) decreasing the UPDATE_INTERVAL_IN_MS (amount to be determined in testing) to increase response time
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[jira] Commented: (CASSANDRA-1296) DES improvements
Posted by "Brandon Williams (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/CASSANDRA-1296?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12890089#action_12890089 ]
Brandon Williams commented on CASSANDRA-1296:
---------------------------------------------
I don't think it's worth trying until we succeed, under concurrency we'll only fail the second offer occasionally, and dropping the update in that case seems reasonable.
> DES improvements
> ----------------
>
> Key: CASSANDRA-1296
> URL: https://issues.apache.org/jira/browse/CASSANDRA-1296
> Project: Cassandra
> Issue Type: Improvement
> Affects Versions: 0.7
> Reporter: Brandon Williams
> Assignee: Brandon Williams
> Priority: Minor
> Fix For: 0.7
>
> Attachments: 1296.txt
>
>
> Changes to include:
> a) fixing the offer() bug where we never track anything past WINDOW_SIZE reads (doh)
> b) setting the reset interval to 10m as intended, instead of 1m
> c) increasing the UPDATES_PER_INTERVAL since they are cheap and this gets us more recent data
> d) decreasing the UPDATE_INTERVAL_IN_MS (amount to be determined in testing) to increase response time
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[jira] Updated: (CASSANDRA-1296) DES improvements
Posted by "Brandon Williams (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/CASSANDRA-1296?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Brandon Williams updated CASSANDRA-1296:
----------------------------------------
Attachment: 1296.txt
> DES improvements
> ----------------
>
> Key: CASSANDRA-1296
> URL: https://issues.apache.org/jira/browse/CASSANDRA-1296
> Project: Cassandra
> Issue Type: Improvement
> Affects Versions: 0.7
> Reporter: Brandon Williams
> Assignee: Brandon Williams
> Priority: Minor
> Fix For: 0.7
>
> Attachments: 1296.txt
>
>
> Changes to include:
> a) fixing the offer() bug where we never track anything past WINDOW_SIZE reads (doh)
> b) setting the reset interval to 10m as intended, instead of 1m
> c) increasing the UPDATES_PER_INTERVAL since they are cheap and this gets us more recent data
> d) decreasing the UPDATE_INTERVAL_IN_MS (amount to be determined in testing) to increase response time
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[jira] Commented: (CASSANDRA-1296) DES improvements
Posted by "Jonathan Ellis (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/CASSANDRA-1296?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12890096#action_12890096 ]
Jonathan Ellis commented on CASSANDRA-1296:
-------------------------------------------
+1 as-is
> DES improvements
> ----------------
>
> Key: CASSANDRA-1296
> URL: https://issues.apache.org/jira/browse/CASSANDRA-1296
> Project: Cassandra
> Issue Type: Improvement
> Affects Versions: 0.7
> Reporter: Brandon Williams
> Assignee: Brandon Williams
> Priority: Minor
> Fix For: 0.7
>
> Attachments: 1296.txt
>
>
> Changes to include:
> a) fixing the offer() bug where we never track anything past WINDOW_SIZE reads (doh)
> b) setting the reset interval to 10m as intended, instead of 1m
> c) increasing the UPDATES_PER_INTERVAL since they are cheap and this gets us more recent data
> d) decreasing the UPDATE_INTERVAL_IN_MS (amount to be determined in testing) to increase response time
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[jira] Commented: (CASSANDRA-1296) DES improvements
Posted by "Hudson (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/CASSANDRA-1296?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12890712#action_12890712 ]
Hudson commented on CASSANDRA-1296:
-----------------------------------
Integrated in Cassandra #496 (See [http://hudson.zones.apache.org/hudson/job/Cassandra/496/])
> DES improvements
> ----------------
>
> Key: CASSANDRA-1296
> URL: https://issues.apache.org/jira/browse/CASSANDRA-1296
> Project: Cassandra
> Issue Type: Improvement
> Affects Versions: 0.7
> Reporter: Brandon Williams
> Assignee: Brandon Williams
> Priority: Minor
> Fix For: 0.7
>
> Attachments: 1296.txt
>
>
> Changes to include:
> a) fixing the offer() bug where we never track anything past WINDOW_SIZE reads (doh)
> b) setting the reset interval to 10m as intended, instead of 1m
> c) increasing the UPDATES_PER_INTERVAL since they are cheap and this gets us more recent data
> d) decreasing the UPDATE_INTERVAL_IN_MS (amount to be determined in testing) to increase response time
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[jira] Commented: (CASSANDRA-1296) DES improvements
Posted by "Jonathan Ellis (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/CASSANDRA-1296?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12890087#action_12890087 ]
Jonathan Ellis commented on CASSANDRA-1296:
-------------------------------------------
shouldn't the "if" be a "while"?
> DES improvements
> ----------------
>
> Key: CASSANDRA-1296
> URL: https://issues.apache.org/jira/browse/CASSANDRA-1296
> Project: Cassandra
> Issue Type: Improvement
> Affects Versions: 0.7
> Reporter: Brandon Williams
> Assignee: Brandon Williams
> Priority: Minor
> Fix For: 0.7
>
> Attachments: 1296.txt
>
>
> Changes to include:
> a) fixing the offer() bug where we never track anything past WINDOW_SIZE reads (doh)
> b) setting the reset interval to 10m as intended, instead of 1m
> c) increasing the UPDATES_PER_INTERVAL since they are cheap and this gets us more recent data
> d) decreasing the UPDATE_INTERVAL_IN_MS (amount to be determined in testing) to increase response time
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