Close local shards and delete mrecordlog queues on ingester startup #3895
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Description
On startup, ingesters list their local mrecordlog queues and call the metastore to close the corresponding shards. If a shard no longer exists, its queue is deleted. Closed shards whose records have been indexed are eventually deleted by a GC task after a grace period has elapsed. The metastore notifies the control plane of the close and delete shards event.
How was this PR tested?