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# general
s
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l
Can you check the value of
druid.lookup.enableLookupSyncOnStartup
and retry after setting it to true?
f
the value was set to false. I've just changed and it works! Thanks. Do you know what happens during reindexing? Is the datasource still accessible? Is it transactional?
l
I don’t have much expertise in that area but I would suppose the datasource should be accessible & transactional
Related to the original doubt, are you using MMs? And on which service do you see the
Failed to sample data: Look…..
error?
f
Yeah I am using MMs and I don"t know which service shows me this message, it is visible directly in the WebUI
l
I think it would be peon. The docs for Druid can be improved, and they should mention that this property should be set when ingesting the data that relies on lookups. Thanks for confirming!