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

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

View File

@@ -338,7 +338,7 @@ func (sys *IAMSys) Load() error {
func (sys *IAMSys) doIAMConfigMigration(objAPI ObjectLayer) error {
// Take IAM configuration migration lock
lockPath := iamConfigPrefix + "/migration.lock"
objLock := globalNSMutex.NewNSLock(context.Background(), minioMetaBucket, lockPath)
objLock := objAPI.NewNSLock(context.Background(), minioMetaBucket, lockPath)
if err := objLock.GetLock(globalOperationTimeout); err != nil {
return err
}