Viewing CLDB Information

The CLDB page provides information about the Container Location Database (CLDB). The CLDB is a management service that tracks container locations and the root of volumes.

To display the CLDB information page, log in to the MapR Control System and go to the service information page for CLDB. Alternatively, you can use the following links to access the CLDB page:
  • For a secure cluster, access the CLDB view at https://<cldbmaster>:7443/cldb.jsp.
  • For an non-secure cluster, access the CLDB view at http://<cldbmaster>:7221/cldb.jsp.

The following table describes the CLDB page:

Field

Description

Container Location Database

This section shows the following:
  • CLDB Mode - The CLDB node can be in the following modes: MASTER_READ_WRITE or SLAVE_READ_ONLY.
  • CLDB BuildVersion - Lists the build version.
  • Master for CLDB volume ready -
  • CLDB Status - The status of CLDB.
  • Cluster Capacity - Lists the storage capacity for the cluster.
  • Cluster Used - Lists the amount of storage in use.
  • Cluster Available - Lists the amount of available storage.
  • Cluster Used Percentage - Lists the percentage of storage in use.

Active FileServers

A list of FileServers, and the following information about each:

  • ServerID (Hex) - The server's ID in hexadecimal notation.
  • ServerID - The server's ID in decimal notation.
  • HostPort - The IP address of the host
  • HostName - The hostname assigned to that file server.
  • Network Location - The network topology for that file server.
  • Last Heartbeat (s) - The timestamp for the last received heartbeat.
  • State - Can be ACTIVE
  • Capacity (MB) - Total storage capacity on this server.
  • Used (MB) - Storage used on this server.
  • Available (MB) - Storage available on this server.
  • In Transit (MB) -

Active NFS Servers

A list of NFS servers, and the following information about each:

  • ServerID (Hex) - The server's ID in hexadecimal notation.
  • ServerID - The server's ID in decimal notation.
  • HostPort - The IP address of the host
  • HostName - The hostname assigned to that file server.
  • Last Heartbeat (s) - The timestamp for the last received heartbeat.
  • State - Can be Active or

Volumes

A list of volumes, and the following information about each:

  • Volume Name - The name of the volume. Click the name of the volume to view the containers of the volume (including the container ID, size (in MB), container master location and container locations, and replication type, which can be S for sequential and C for cascading).
  • Mount Point - The path of where the volume is mounted over NFS.
  • Mounted - Specifies whether volume is mounted. Value can be Y or N.
  • ReadOnly - Specifies whether volume is a read-only or read/write volume. Value can be Y (in volume is read-only) or N (if volume is read/write).
  • Volume ID - The Volume ID.
  • Volume Topology - The path describing the topology to which the volume is assigned.
  • Quota - The total size of the volume's quota. A quota of 0 means no quota is assigned.
  • Advisory Quota - The usage level that triggers a disk usage warning.
  • Used - Total size of data written to the volume.
  • LogicalUsed - Actual size of data written to the volume.
  • Root Container ID - The ID of the root container.
  • Replication - The number of copies of the volume.
  • Guaranteed Replication - The minimum number of copies of the volume.

Accountable Entities

A list of users and groups, and the following information about each:

  • AE Name - The name of the accountable entity.
  • AE Type - The type of accountable entity.
  • AE Quota - The hard quota allocated to the accountable entity.
  • AE Advisory Quota - The advisory quota limit for the accountable entity.
  • AE Used - The amount of disk space used by the accountable entity.

Mirrors Information

A link to the Mirrors page, which displays the list of mirrors, and the following information about each:

  • Mirror Volume Name - The name of the mirror volume.
  • Mirror ID - The ID of the mirror volume.
  • Mirror NextID -
  • Mirror Status - The status of the mirroring operation.
  • Last Successful Mirror Time - The date and time stamp from the last successful mirroring operation.
  • Mirror SrcVolume - The source volume for the mirror volume.
  • Mirror SrcRootContainerID - The source container ID for the mirror volume.
  • Mirror SrcClusterName - The source cluster name for the mirror volume.
  • Mirror SrcSnapshot - The source snapshot associated with the mirror volume.
  • Mirror DataGenerator Volume -
  • Mirror DataGenerator snapshot time -

Snapshots Information

A link to Snapshots page, which displays the list of snapshots, and the following information about each:
  • Snapshot ID - The ID of the snapshot.
  • RW Volume ID - The ID of the standard (or read/write) volume associated with the snapshot.
  • Snapshot Name - The name of the snapshot.
  • Root Container ID - The ID of the container.
  • Snapshot Size - The size of the snapshot.
  • Snapshot InProgress - The status of the snapshot if it is currently in progress.
The page also displays a list of snapshot containers, and the following information about each:
  • Snapshot Container ID - unique ID of the container
  • Snapshot ID - ID of the snapshot corresponding to the container
  • RW Container ID - corresponding source container ID
  • Latest Epoch -
  • SizeMB - container size, in MB
  • Container Master Location - location of the container's master replica
  • Container Locations -
  • Inactive Locations -
Storage Pools The list of storage pools, and the following information about each:
  • SP - The ID of the storage pool.
  • ServerId - The ID of the server associated with the storage pool.
  • SpIdx -
  • Last Heartbeat(s) -
  • Capacity - The total capacity of the storage pool.
  • Used - The amount of space used on the storage pool.
  • Disk Fullness Level (percentage) - The percentage of disk (associated with the storage pool) that is full.
  • InTransit -
  • OutTransit -
Active Container Moves The lit of containers being moved, and for each:
  • Container ID - The ID of the container being moved.
  • SizeMB - The size of the container (in MB) being moved.
  • From Location - The location from where the container is being moved.
  • From SP - The SP out of which the container is being moved.
  • To Location - The location to where the container is being moved.
  • To SP - the SP to which the container is being moved.