cassandra-commits mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Nate McCall (JIRA)" <>
Subject [jira] Commented: (CASSANDRA-1156) support querying multiple nodes for index scan
Date Mon, 02 Aug 2010 21:16:17 GMT


Nate McCall commented on CASSANDRA-1156:

Passes nosetests as is. 

Passes unit tests with above patch applied.

> support querying multiple nodes for index scan
> ----------------------------------------------
>                 Key: CASSANDRA-1156
>                 URL:
>             Project: Cassandra
>          Issue Type: Sub-task
>            Reporter: Jonathan Ellis
>            Assignee: Jonathan Ellis
>             Fix For: 0.7 beta 1
>         Attachments: 1156-sstwt-fix.txt, 1156-v2.txt
> given CASSANDRA-1155, we should query multiple nodes for the rows corresponding to the
given index criteria, such that we have a 90% chance of getting enough rows w/o having to
do another query (but, if our estimate is incorrect, we do need to loop and do a 2nd query).
> we start with the first node in token order, so that we only have to query a single node
for low cardinality (i.e., every index value has many rows associated with it).  we do this
by ordering the keys in the index row, in partitioner order.

This message is automatically generated by JIRA.
You can reply to this email to add a comment to the issue online.

View raw message