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Support MinIO to be deployed on more than 32 nodes (#8492)

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This PR implements locking from a global entity into
a more localized set level entity, allowing for locks
to be held only on the resources which are writing
to a collection of disks rather than a global level.

In this process this PR also removes the top-level
limit of 32 nodes to an unlimited number of nodes. This
is a precursor change before bring in bucket expansion.
This commit is contained in:
Harshavardhana
2019-11-13 12:17:45 -08:00
committed by kannappanr
parent 069b8ee8ff
commit e9b2bf00ad
58 changed files with 2312 additions and 838 deletions
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2
cmd/config-encrypted.go
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@@ -52,7 +52,7 @@ func handleEncryptedConfigBackend(objAPI ObjectLayer, server bool) error {
// at a given time, this big transaction lock ensures this
// appropriately. This is also true for rotation of encrypted
// content.
objLock := globalNSMutex.NewNSLock(context.Background(), minioMetaBucket, transactionConfigPrefix)
objLock := objAPI.NewNSLock(context.Background(), minioMetaBucket, transactionConfigPrefix)
if err := objLock.GetLock(globalOperationTimeout); err != nil {
return err
}