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https://issues.apache.org/jira/browse/CASSANDRA-4088?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13242725#comment-13242725
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Yuki Morishita commented on CASSANDRA-4088:
-------------------------------------------
+1.
I created following tables in 1.0.8:
{noformat}
CREATE TABLE Test1 (key int PRIMARY KEY) WITH row_cache_size = 1 AND
key_cache_size = 1;
CREATE TABLE Test2 (key int PRIMARY KEY) WITH row_cache_size = 0 AND
key_cache_size = 0;
CREATE TABLE Test3 (key int PRIMARY KEY) WITH row_cache_size = 1;
CREATE TABLE Test4 (key int PRIMARY KEY) WITH key_cache_size = 1;
CREATE TABLE Test5 (key int PRIMARY KEY);
CREATE TABLE Test6 (key int PRIMARY KEY) WITH row_cache_size = 1 AND
key_cache_size = 0;
{noformat}
and got following in patched 1.1:
{noformat}
create column family Test1
...
and caching = 'ALL';
create column family Test2
...
and caching = 'NONE';
create column family Test3
...
and caching = 'ALL';
create column family Test4
...
and caching = 'KEYS_ONLY';
create column family Test5
...
and caching = 'KEYS_ONLY';
create column family Test6
...
and caching = 'ROWS_ONLY';
{noformat}
> Respect 1.0 cache settings as much as possible when upgrading
> -------------------------------------------------------------
>
> Key: CASSANDRA-4088
> URL: https://issues.apache.org/jira/browse/CASSANDRA-4088
> Project: Cassandra
> Issue Type: Improvement
> Affects Versions: 1.1.0
> Reporter: Jonathan Ellis
> Assignee: Pavel Yaskevich
> Fix For: 1.1.0
>
> Attachments: CASSANDRA-4088.patch
>
>
> When converting a 1.0 schema to 1.1, we should look at the key and row caches
> (just whether they are en- or dis-abled) and set the caching setting
> accordingly. I think right now upgrading means all your row caching is gone
> until you update it manually.
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