datasource is disabled, how to enable？

[Maplejw]

My datasource(note_client_behavior) is disabled, and then I click the enable's button,but it do not take effect.

When I click the enable's button,the coordinator log

The segements data are still stored in deep storage, not deleted.So how to let it enable?

[yuanlihan]

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.

[Maplejw]

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.

First thanks your answer.
As you say,it means I (re-)enable datasource, Druid will first marks segments used,and next operation cycle of Coordinator( >= PT1M(not P1M) by default),the segments will be loaded in historical nodes?

And I query the table druid_segments,The value of used is 0 not 1.
So segments are marked as unused. Enabling it not take effect.

[yuanlihan]

And I query the table druid_segments,The value of used is 0 not 1.

Seems that clicking the enable button failed to mark segments as used. Possibly there is a bug in the version of console page you used(but it works in version 0.18.0). You can use the restful API /druid/coordinator/v1/datasources/{dataSourceName}/markUsed instead.

[Maplejw]

And I query the table druid_segments,The value of used is 0 not 1.

Seems that clicking the enable button failed to mark segments as used. Possibly there is a bug in the version of console page you used(but it works in version 0.18.0). You can use the restful API /druid/coordinator/v1/datasources/{dataSourceName}/markUsed instead.

It works when I use the restful API. Thanks