[
https://issues.apache.org/jira/browse/CASSANDRA-2045?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13057466#comment-13057466
]
Jonathan Ellis edited comment on CASSANDRA-2045 at 6/29/11 8:58 PM:
--------------------------------------------------------------------
oops, didn't look too closely to what I was pasting.
{noformat}
Hints: { // cf
<dest ip>: { // key
<uuid>: { // super-column
table: <table> // columns
key: <key>
mutation: <mutation>
}
}
}
{noformat}
(Mutations can contain multiple CFs so storing a single CF value wouldn't make
sense.)
was (Author: jbellis):
oops, didn't look too closely to what I was pasting.
{noformat}
Hints: { // cf
<dest ip>: { // key
<uuid>: { // super-column
table: <table> // columns
key: <key>
mutation: <mutation>
}
}
}
(Mutations can contain multiple CFs so storing a single CF value wouldn't make
sense.)
> Simplify HH to decrease read load when nodes come back
> ------------------------------------------------------
>
> Key: CASSANDRA-2045
> URL: https://issues.apache.org/jira/browse/CASSANDRA-2045
> Project: Cassandra
> Issue Type: Improvement
> Reporter: Chris Goffinet
> Assignee: Nicholas Telford
> Fix For: 1.0
>
> Attachments:
> 0001-Changed-storage-of-Hints-to-store-a-serialized-RowMu.patch,
> 0002-Refactored-HintedHandoffManager.sendRow-to-reduce-co.patch,
> 0003-Fixed-some-coding-style-issues.patch,
> 0004-Fixed-direct-usage-of-Gossiper.getEndpointStateForEn.patch,
> 0005-Removed-duplicate-failure-detection-conditionals.-It.patch,
> 0006-Removed-handling-of-old-style-hints.patch, 2045-v3.txt,
> CASSANDRA-2045-simplify-hinted-handoff-001.diff,
> CASSANDRA-2045-simplify-hinted-handoff-002.diff
>
>
> Currently when HH is enabled, hints are stored, and when a node comes back,
> we begin sending that node data. We do a lookup on the local node for the row
> to send. To help reduce read load (if a node is offline for long period of
> time) we should store the data we want forward the node locally instead. We
> wouldn't have to do any lookups, just take byte[] and send to the destination.
--
This message is automatically generated by JIRA.
For more information on JIRA, see: http://www.atlassian.com/software/jira
