igorvpcleao commented on issue #11868:
URL: https://github.com/apache/druid/issues/11868#issuecomment-960424966
Hey @EgorEna,
First things first, I'm just someone with moderate knowledge trying to help,
not a Druid expert here.
By focusing on your first spec, do you see something like this when you look
at your historical node logs?
```
2021-11-03T20:37:49,917 INFO [NamespaceExtractionCacheManager-1]
org.apache.druid.server.lookup.namespace.JdbcCacheGenerator - Finished loading
2990136 values for namespace
[JdbcExtractionNamespace{connectorConfig=DbConnectorConfig{createTables=false,
connectURI='jdbc:mysql://REDACTED:3306/something?user='REDACTED',
passwordProvider=org.apache.druid.metadata.DefaultPasswordProvider,
dbcpProperties=null}, table='REDACTED', keyColumn='id', valueColumn='type',
tsColumn='updated_at', filter='null', pollPeriod=P1D}] :
org.apache.druid.server.lookup.namespace.cache.CacheScheduler$EntryImpl@22e17b56
```
1. I'd like to make sure that you're able to see a **Finished loading x
values** message recently (or at least see an exception while loading it).
2. Also, does `"injective": true` really applies to you? It should only be
used when both keys and values are unique.
3. Finally, by not updating you mean changing existing values, or not
deleting entries that were previously deleted from your database?
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