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  1. Couchbase Server
  2. MB-44826

[UI][stats] Total disk usage in bucket details is not matching with what is shown at scopes/collections level.

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    Description

      Please refer these screenshots:
      Disk Used in Bucket Details:

      Disk Used in Bucket Scopes/Collections Level:

      Attachments

        1. Bucket_17-Mar.png
          Bucket_17-Mar.png
          80 kB
        2. bucket_30Mar.png
          bucket_30Mar.png
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        3. Couchstore_bucket.png
          Couchstore_bucket.png
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        4. couchstore_scope_collection.png
          couchstore_scope_collection.png
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        5. image-2021-03-09-13-16-41-231.png
          image-2021-03-09-13-16-41-231.png
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        6. image-2021-03-09-13-17-12-364.png
          image-2021-03-09-13-17-12-364.png
          114 kB
        7. scopes-collections_17-Mar.png
          scopes-collections_17-Mar.png
          94 kB
        8. scopes-collections_30-Mar.png
          scopes-collections_30-Mar.png
          127 kB
        9. screenshot-1.png
          screenshot-1.png
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        10. screenshot-2.png
          screenshot-2.png
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        11. Screen Shot 2021-03-25 at 2.16.14 PM.png
          Screen Shot 2021-03-25 at 2.16.14 PM.png
          114 kB
        12. Screenshot 2021-03-26 at 09.07.07.png
          Screenshot 2021-03-26 at 09.07.07.png
          21 kB
        13. Screenshot 2021-03-26 at 09.07.17.png
          Screenshot 2021-03-26 at 09.07.17.png
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        Issue Links

          depends on

          Bug - A problem which impairs or prevents the functions of the product. MB-45132 Collections: tombstone purging doesn't adjust collection disk size

          • Critical - Crashes, loss of data, severe memory leak.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. MB-45144 Collections: key & fixed metadata overhead not included in collection disk size

          • Critical - Crashes, loss of data, severe memory leak.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. MB-45221 Collections: disk/data size delete->delete is increasing the counter

          • Critical - Crashes, loss of data, severe memory leak.
          • Closed
          relates to

          Task - A task that needs to be done. DOC-8408 Update scope and collection metric examples

          • Major - Major loss of function.
          • Closed
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          Activity

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            ritesh.agarwal Ritesh Agarwal added a comment -

            Dave Rigby: Is it the same we show in UI after aggregating it from all nodes?

            ritesh.agarwal Ritesh Agarwal added a comment - Dave Rigby : Is it the same we show in UI after aggregating it from all nodes?
            drigby Dave Rigby added a comment -

            I would assume so but I don't know for sure - you'd have to check with ns_server / UI in what they expose.

            drigby Dave Rigby added a comment - I would assume so but I don't know for sure - you'd have to check with ns_server / UI in what they expose.
            timofey.barmin Timofey Barmin added a comment - - edited

            Ritesh Agarwal UI shows kv_collection_data_size_bytes. So I think what you see in UI counts only active vBuckets.

            BTW it also contradicts to what we see in buckets page, where we show the total disk size for a bucket, which is equal to the bucket directory size, and I think it contains both: replica and active vbuckets.

            Dave Rigby Please correct me if memcached keeps replica vbuckets in a separate directory.

            timofey.barmin Timofey Barmin added a comment - - edited Ritesh Agarwal UI shows kv_collection_data_size_bytes. So I think what you see in UI counts only active vBuckets. BTW it also contradicts to what we see in buckets page, where we show the total disk size for a bucket, which is equal to the bucket directory size, and I think it contains both: replica and active vbuckets. Dave Rigby Please correct me if memcached keeps replica vbuckets in a separate directory.
            drigby Dave Rigby added a comment -

            Timofey Barmin Corrrect - all vBucket files are in the same directory.

            drigby Dave Rigby added a comment - Timofey Barmin Corrrect - all vBucket files are in the same directory.
            ritesh.agarwal Ritesh Agarwal added a comment -

            UI shows kv_collection_data_size_bytes. So I think what you see in UI counts only active vBuckets.

            If this is by design then it seems to be working fine. Given that under scopes/collection the disk utilisation is the unique data content size and does not include replica is by design...closing the defect.

            ritesh.agarwal Ritesh Agarwal added a comment - UI shows kv_collection_data_size_bytes. So I think what you see in UI counts only active vBuckets. If this is by design then it seems to be working fine. Given that under scopes/collection the disk utilisation is the unique data content size and does not include replica is by design...closing the defect.

            People

              ritesh.agarwal Ritesh Agarwal
              ritesh.agarwal Ritesh Agarwal
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                Resolved:

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