[SERVER-53850] Time-series collection stats should have their own section Created: 16/Jan/21  Updated: 29/Oct/23  Resolved: 26/Jan/21

Status: Closed
Project: Core Server
Component/s: Storage
Affects Version/s: None
Fix Version/s: 4.9.0

Type: Improvement Priority: Major - P3
Reporter: Geert Bosch Assignee: Dan Larkin-York
Resolution: Fixed Votes: 0
Labels: neweng
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Backwards Compatibility: Fully Compatible
Sprint: Execution Team 2021-01-25, Execution Team 2021-02-08
Participants:

 Description   

Currently, time-series collection stats are just interspersed with general collection stats like this:

{
        "ns" : "w1b1mdb.point_data",
        "size" : 13403952,
        "bucketsNs" : "w1b1mdb.system.buckets.point_data",
        "bucketCount" : 240,
        "avgBucketSize" : 55849,
        "numBucketInserts" : 240,
        "numBucketUpdates" : 86160,
        "numBucketsOpenedDueToMetadata" : 20,
        "numBucketsClosedDueToCount" : 0,
        "numBucketsClosedDueToSize" : 0,
        "numBucketsClosedDueToTimeForward" : 220,
        "numBucketsClosedDueToTimeBackward" : 0,
        "numCommits" : 86400,
        "numWaits" : 0,
        "numMeasurementsCommitted" : 86400,
        "avgNumMeasurementsPerCommit" : 1,
        "storageSize" : 2252800,
        "freeStorageSize" : 118784,
        "capped" : false,
        "wiredTiger" : {
                "metadata" : {
                ...

Instead time-series collection stats should live together, like the wiredTiger stats:

 

{
"ns" : "w1b1mdb.point_data",
"size" : 13403952,
"storageSize" : 2252800,
"freeStorageSize" : 118784,
"capped" : false,
"timeseries":

{ "bucketsNs" : "w1b1mdb.system.buckets.point_data", "bucketCount" : 240, "avgBucketSize" : 55849, "numBucketInserts" : 240, "numBucketUpdates" : 86160, "numBucketsOpenedDueToMetadata" : 20, "numBucketsClosedDueToCount" : 0, "numBucketsClosedDueToSize" : 0, "numBucketsClosedDueToTimeForward" : 220, "numBucketsClosedDueToTimeBackward" : 0, "numCommits" : 86400, "numWaits" : 0, "numMeasurementsCommitted" : 86400, "avgNumMeasurementsPerCommit" : 1 }

,
"wiredTiger" : {
"metadata" : {



 Comments   
Comment by Githook User [ 26/Jan/21 ]

Author:

{'name': 'Dan Larkin-York', 'email': 'dan.larkin-york@mongodb.com', 'username': 'dhly-etc'}

Message: SERVER-53850 Move timeseries-related collections stats to their own section
Branch: master
https://github.com/mongodb/mongo/commit/86859a7dfe85a211b869361776bca0d116814bb1

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