Help Center > > Developer Guide> WDR Performance Analysis> Performance View Snapshot> Deleting Expired Snapshots

Deleting Expired Snapshots

Updated at: Sep 17, 2021 GMT+08:00

You can use the GUC parameter wdr_snapshot_retention_days to set the maximum number of days for storing snapshot data. Expired snapshots whose storage duration exceeds the value of wdr_snapshot_retention_days will be deleted, and the disk space occupied by the snapshots will be released periodically.

  • This function requires that the enable_wdr_snapshot parameter be enabled on the CCN.
  • Expired snapshots are cleared and disk space is released later than the time when expired snapshots are generated.

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