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DocumentationTDMQ for CKafkaTroubleshootingMessage FailuresSlow Consumption Speed
Slow Consumption Speed
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Last updated: 2024-01-09 14:57:56
Slow Consumption Speed
Last updated: 2024-01-09 14:57:56
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Issue Description

Message consumption is slow.

Possible Causes

High server load
Traffic throttling
Client load issue
Consumer’s consumption capability
Network issue

Solutions

High server load
If you want to check whether it is a server issue, you can view the consumption time in Advanced Monitoring in the console, which indicates the time it takes for the server to process requests. If there is a server load issue, the time values in the statistical periods are relatively high as shown below:



Traffic throttling
If you want to check whether it is caused by traffic throttling, you can configure an alarm for excessive bandwidth and then check whether the bandwidth peak of the instance has been reached in Monitoring > Instance; if so, you need to upgrade the bandwidth peak. For more information on how to upgrade the instance configuration, see Upgrading Instance.
Client load issue
If the server doesn't have a performance issue, there is a high probability that the consumption capacity of the client is insufficient. First, take a look at the correspondence between partitions and consumers as shown below. If a consumer consumes too many partitions, we recommend you add more consumers, so that one consumer consumes one partition.



Consumer’s consumption capability
If the assignment relationship between consumers and partitions is normal, you can add more partitions in the console to increase the concurrency of data consumption as shown below. Adding partitions in the console is instant and lossless, so your business won’t be affected.



Network issue
Check the client load metrics, such as the client CPU, memory size, and network interface. If it is a Java process, you should pay attention to GC and heap memory usage.
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