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Type:
Bug
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Resolution: Unresolved
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Priority:
Major - P3
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None
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Affects Version/s: None
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Component/s: None
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Labels:None
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Catalog and Routing
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ALL
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2
We have a two shard cluster. Create a timeseries collection on it, and then modify the bucketing params:
mongos> db.createCollection( "tscoll", { timeseries: { timeField: "timestamp", bucketMaxSpanSeconds: 100, bucketRoundingSeconds: 100 } } ) mongos> db.runCommand({ collMod: "tscoll", timeseries: { bucketRoundingSeconds: 201, bucketMaxSpanSeconds: 201 } })
We can see that the timeseriesBucketingParametersHaveChanged is set to true:
mongos> use admin
mongos> db.aggregate([{$listCatalog: {}}, {$match: {name: /buckets.tscoll/}}]).pretty()
{
"db" : "test",
"name" : "system.buckets.tscoll",
"type" : "collection",
"shard" : "shard-rs1",
"md" : {
"ns" : "test.system.buckets.tscoll",
"options" : {
...
"timeseries" : {
"timeField" : "timestamp",
"bucketRoundingSeconds" : 201,
"bucketMaxSpanSeconds" : 201
}
},
"indexes" : [ ],
"timeseriesBucketsMayHaveMixedSchemaData" : false,
"timeseriesBucketingParametersHaveChanged" : true
},
"idxIdent" : {
},
"ns" : "test.system.buckets.tscoll",
"ident" : "collection-50-2538635120092599498"
}
Initiate movePrimary:
mongos> db.adminCommand({movePrimary: 'test', to: 'shard-rs0'})
mongos> use admin
mongos> db.aggregate([{$listCatalog: {}}, {$match: {name: /buckets.tscoll/}}]).pretty()
{
"db" : "test",
"name" : "system.buckets.tscoll",
"type" : "collection",
"shard" : "shard-rs0",
"ns" : "test.system.buckets.tscoll",
"ident" : "collection-59-3693464124440949550",
"md" : {
"ns" : "test.system.buckets.tscoll",
"options" : {
...
"clusteredIndex" : true,
"timeseries" : {
"timeField" : "timestamp",
"bucketRoundingSeconds" : 201,
"bucketMaxSpanSeconds" : 201
}
},
"indexes" : [ ],
"timeseriesBucketsMayHaveMixedSchemaData" : false,
"timeseriesBucketingParametersHaveChanged" : false
}
}
Found on base commit: cdbd4b3f1c03cac745e81f3b7d538775ce78992d
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