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Type:
Task
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Resolution: Fixed
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Priority:
Major - P3
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Affects Version/s: None
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Component/s: Sharding
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Fully Compatible
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None
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Patch up config.chunks entries in the following ways:
- Remove the collectionUUID field during downgrade
- Add the collectionUUID field during upgrade
Current config server config.chunks collection format (before upgrade / after downgrade):
{
_id : "test.foo-a_MinKey",
ns : "test.foo",
min : {
"a" : { "$minKey" : 1 }
},
max : {
"a" : { "$maxKey" : 1 }
},
shard : "test-rs1",
lastmod : Timestamp(1, 0),
lastmodEpoch : ObjectId("587fc60cef168288439ad6ed"),
jumbo : false // optional field
}
New config server config.chunks collection format (before downgrade / after upgrade):
{
_id : "test.foo-a_MinKey",
uuid : "9ecb0808-b62b-4204-9f99-8c65c9e6e10b",
min : {
"a" : { "$minKey" : 1 }
},
max : {
"a" : { "$maxKey" : 1 }
},
shard : "test-rs1",
lastmod : Timestamp(1, 0),
lastmodEpoch : ObjectId("587fc60cef168288439ad6ed"),
jumbo : false // optional field
}
- depends on
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- Closed
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- is depended on by
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- Closed
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