Improve functionality of the Metadata Server (Proposal)

[pspoerri]

Desired features

• Pub/Sub mechanism
• Update file location
• Store the entire object as a fixed size. optional

Data structure for each object

{
     location: str,
     type: [refrence, owner]
     backingStore: Optional[str]  # Indicate whether the file has an authoritative source (blocks can be empty)
     size: int
}

Interface

• Create Bucket
  • createBucket(bucket: str)
• Delete Bucket
  • deleteBucket(bucket: str)
• List Buckets
  • listBuckets()
• Create
  • create(bucket: str, key: str, size: int, sealedSize: int, blocks = None, backingStore = None)
• Update
  • update(bucket: str, key: str, location: Optional[str], type: Optional[reference, owner], backingStore: Optional[str] size: Optional[int])
  • resize(bucket: str, key: str, newSize: int)
• List
  • list(bucket: str, key: str, delimiter='/')
• Delete
  • remove(bucket: str, key: str)
  • removePrefix(bucket: str, prefix: str)
• Subscribe
  • subscribe(bucket: str)
  • subscribe(bucket: str, key: str) - Exact
  • subscribe(bucket: str, prefix: str) - Use pattern
• Unsubscribe
  • unsubscribe(bucket: str)
  • unsubscribe(bucket: str, key: str) - Exact
  • unsubscribe(bucket: str, prefix: str) - Use pattern

[BernardMetzler]

huh?

Interface

Create Bucket
    createBucket(bucket: str)
Create Bucket
    deleteBucket(bucket: str)

Delete Bucket..?

[pspoerri]

I fixed it :)