cassandra-commits mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Michael Penick (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-10247) Allow both named values and regular values in a single batch
Date Tue, 01 Sep 2015 21:48:46 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-10247?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Michael Penick updated CASSANDRA-10247:
---------------------------------------
    Summary: Allow both named values and regular values in a single batch  (was: Allow both
named values and regular values to simultaneously work in batches)

> Allow both named values and regular values in a single batch
> ------------------------------------------------------------
>
>                 Key: CASSANDRA-10247
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-10247
>             Project: Cassandra
>          Issue Type: Improvement
>            Reporter: Michael Penick
>
> Currently, there's a single {{<flag>}} to determine whether a batch uses named
values or not. This forces all query entries in a batch to use the same value encoding. There's
also the fact that the current design is broken. See: CASSANDRA-10246
> I propose that this information be encoded using the batch entries {{<kind>}} component
and remove "0x40: With names for values" as an option from {{<flags>}}. In the current
design the {{<kind>}}, a {{[byte]}}, only uses two values 0 and 1 for non-prepared and
prepared, respectively. The proposed solution would add two more values 2 and 3 for non-prepared
w/ names values and prepared w/ named values. This has a couple benefits:
> 1) It allows for heterogeneous value encodings in a single batch
> 2) It eliminates the need for reading ahead to determine the value encodings (See: CASSANDRA-10246)



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message