getComputeGroupChunksStatus

getComputeGroupChunksStatus([computeGroup])

computeGroup (optional) is a string indicating the compute group.

This function obtains the metadata about all database chunks (file chunks and tablet chunks) on the compute nodes. It must be executed on a controller.

Return value: A table containing the following columns:

• chunkId: Chunk ID.
• file: Chunk path.
• routedTo: Compute node to which queries are routed.
• cachedOn: Compute node on which the chunk is cached, in the format alias:[version]. For example, orca2:[29] means the compute node orca2 caches chunk data of version 29.
• computeGroup: Compute group(s) where the chunk is cached.
• size: Disk space occupied by the file chunk (in Bytes). Return 0 for a tablet chunk. Use getTabletsMeta to check the disk usage of a tablet chunk.
• version: Version number of the current chunk.
• vcLength: Length of the version chain.
• versionChain: Version chain of the chunk, e.g. "18441:76:1:346 -> 18441:0:0:346 -> ".
• state: Chunk state. It can be
  • CONSTRUCTING: in transaction.
  • RECOVERING: recovering.
  • COMPLETE: transaction completed.
• dataNodeReplicas: Replica information of the chunk on data nodes.
• dataNodeReplicaCount: Number of replica(s) on data nodes.
• lastUpdated: Last modification timestamp.
• permission: Chunk permission. It can be READ_WRITE (default) and READ_ONLY. Chunks that are being transferred or stored in S3 are READ_ONLY.

getComputeGroupChunksStatus()