yuanlihan commented on issue #9868:
URL: https://github.com/apache/druid/issues/9868#issuecomment-628350089
Hi @Maplejw
When you disable a datasource, by default Druid will first marks segments as
unused and then in the next operation cycle of Coordinator(>= P1M by default),
the disable segments will be unloaded from historical nodes. Similar process
for (re-)enabling datasource.
Also in your case, can check if segments are marked as used in table
`druid_segments` after enabling.
See
https://druid.apache.org/docs/latest/configuration/index.html#coordinator-operation
for details.
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