Abstract: Replication of tags in global scale systems is described. A source node creates a file and a grouping tag for the file. The source node stores the grouping tag in a location in metadata for the file. When preparing for replication, the source node retrieves the grouping tag from the location in the metadata. If the legacy location in the metadata includes any value which was stored after the most recent replication involving the file, and the size of the legacy location in the metadata was not changed after the most recent replication involving the file, the system adds the grouping tag to the legacy location in the metadata which includes any value which was stored after the most recent replication involving the file. The system sends the metadata, which includes the grouping tag and any value stored at the legacy location in the metadata, to a destination node.

Abstract: A destination node receives metadata for a file, via replication, from a source node. If a legacy location in the metadata for the file does not include any new value for a legacy location in local metadata for the file, then the destination node stores the metadata to a local data structure. If the legacy location in the metadata includes any new value for the legacy location in the local metadata, and the new value is any new grouping tag, then the destination node extracts the new grouping tag from the legacy location in the metadata. The destination node constructs a key based on the legacy location in the metadata and uses the constructed key to search for an alternative location in the metadata for the file, for the new grouping tag. The destination node stores the new grouping tag in the alternative location in the metadata.

Abstract: Replication of tags in global scale systems is described. A source node creates a file and a grouping tag for the file. The source node stores the grouping tag in a location in metadata for the file. When preparing for replication, the source node retrieves the grouping tag from the location in the metadata. If the legacy location in the metadata includes any value which was stored after the most recent replication involving the file, and the size of the legacy location in the metadata was not changed after the most recent replication involving the file, the system adds the grouping tag to the legacy location in the metadata which includes any value which was stored after the most recent replication involving the file. The system sends the metadata, which includes the grouping tag and any value stored at the legacy location in the metadata, to a destination node.

Abstract: A destination node receives metadata for a file, via replication, from a source node. If a legacy location in the metadata for the file does not include any new value for a legacy location in local metadata for the file, then the destination node stores the metadata to a local data structure. If the legacy location in the metadata includes any new value for the legacy location in the local metadata, and the new value is any new grouping tag, then the destination node extracts the new grouping tag from the legacy location in the metadata. The destination node constructs a key based on the legacy location in the metadata and uses the constructed key to search for an alternative location in the metadata for the file, for the new grouping tag. The destination node stores the new grouping tag in the alternative location in the metadata.

Abstract: Replication of tags in global scale systems is described. A source node creates a file and a grouping tag for the file. The source node stores the grouping tag in a location in metadata for the file. When preparing for replication, the source node retrieves the grouping tag from the location in the metadata for the file. If a legacy location in the metadata for the file includes any value which was stored after a most recent replication involving the file, the source node identifies a key for the legacy location in the metadata for the file. The source node adds the grouping tag as a value for the identified key. The source node sends the metadata for the file, including the identified key, to a destination node.

Abstract: A source node creates a file and a grouping tag for the file. The source node stores the grouping tag in a location in metadata for the file. When preparing for replication, the source node retrieves the grouping tag from the location in the metadata. If the legacy location in the metadata includes any value which was stored after the most recent replication involving the file, and the size of the legacy location in the metadata was changed after the most recent replication involving the file, then the system enables a destination node to store the grouping tag in the legacy location in the metadata by sending records comprising a request to replace a record stored at the legacy location in the metadata with a larger record, and combining the grouping tag with any value which changed the size of the metadata after a most recent replication involving the file.

Abstract: A method of capturing a fractional snapshot of a distributed file system includes receiving a snapshot request to generate a factional snapshot of a file system. The request includes an indication of a subset of data of the file system. The method further includes identifying, by a processing device, the subset of data of the file system indicated by the snapshot request and generating the fractional snapshot comprising the subset of data of the file system indicated by the snapshot request.

Abstract: A method of capturing a fractional snapshot of a distributed file system includes receiving a snapshot request to generate a factional snapshot of a file system. The request includes an indication of a subset of data of the file system. The method further includes identifying, by a processing device, the subset of data of the file system indicated by the snapshot request and generating the fractional snapshot comprising the subset of data of the file system indicated by the snapshot request.