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Review meshIQ Products (G2.com)

Consumer groups

You can view consumer group information by selecting the Consumer menu on the left side of the screen. At the top of the page, you can see the CMPS history across the cluster, and at the bottom you see a list of consumer groups.

ConsumerCMPS.png

List of consumer groups

ConsumerGrpList.png

  • GROUP ID. Consumer Group ID reported when connecting to Consumer.
  • STATUS. Status of consumer group
    • UNKNOWN. Status unknown
    • PREPARING_REBALANCE. Preparing for rebalancing
    • COMPLETING_REBALANCE. Rebalancing complete
    • STABLE. Stable
    • DEAD. End group
    • EMPTY. Group empty
  • CONSUMER. Number of consumers belonging to the group.
  • TOPIC. Number of topics subscribed to by consumer group.
  • MESSAGE BEHIND. The total number of messages that were not processed by consumers in the group.

Consumer Group Details

To view detailed information about a consumer group, select its name from the consumer list.

Total consumer lag

This is the total history information of the entire consumer lag (read delay) in the group, and you can check the changing trend of consumer lag.

TotConsmrLag.png

CMPS

This is information on the entire group's CMPS history, and you can check the changing trends.

CMPSGraph.png

 

Consumer Information

Details of individual consumers in a consumer group.

ConsumerInfo.png

  • Consumer ID and host address. The client ID of each consumer and the IP address of the host on which it is running. In container environments, the information may be incorrect.
  • Message Behind. Total of messages not yet read by the client.
  • Assigned partition. Number of partitions assigned to the consumer.
  • Partition allocation method. Partition allocation method for the consumer group.
  • Assignment Status. ASSIGNED or NOT ASSIGNED.

Topic Partition Lag List (Topic Partition Rack List)

ConsumerList.png

If you expand the collapsed information using the icon to the left of the client ID, you can check detailed information for each assigned topic partition.

  • TOPIC. Topic name.
  • PARTITION. partition number.
  • MESSAGE BEHIND. Number of messages that could not be processed.
  • CMPS. Message throughput per second.
  • CURRENT OFFSET. Next read message offset.
  • END OFFSET. Offset of last message in partition.
  • EVALUATION. condition assessment:
    • NOT_FOUND. No such consumer found.
    • OK. normal.
    • WARN. Offset and LAG continue to increase.
    • ERR. Offset does not increase, but LAG does not go to 0.
    • STOP. Offsets not committed for a long time.
    • STALL. Offset is being committed but not incremented and LAG is not zeroed either.