Mmuzaf commented on code in PR #3133:
URL: https://github.com/apache/cassandra/pull/3133#discussion_r1823045462
##########
src/java/org/apache/cassandra/db/ColumnFamilyStore.java:
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@@ -3048,19 +3049,19 @@ public boolean isEmpty()
public boolean isRowCacheEnabled()
{
- boolean retval = metadata().params.caching.cacheRows() &&
CacheService.instance.rowCache.getCapacity() > 0;
+ boolean retval = metadata().params.caching.cacheRows() &&
DatabaseDescriptor.getRowCacheSizeInMiB() > 0;
Review Comment:
`DatabaseDescriptor.getRowCacheSizeInMiB() > 0` -- this condition is unclear
to the user/developer facing it for the first time, so my suggestion is to
create a new method in the `DatabaseDescriptor` class and reuse it where we
need it. I've looked at the latest branch (trunk) and I think we could push a
new method there as well.
An example:
```
public static boolean isRowCacheEnabled()
{
return conf.row_cache_size.toMebibytes() > 0;
}
```
Similar methods should be created for the counter and key caches.
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