ERR redis runtime_error ai_generated true

ERR Consumer group 'mygroup' on stream 'mystream' claim timeout: no pending messages to claim

ID: redis/stream-consumer-group-claim-timeout

Also available as: JSON · Markdown · 中文
85%Fix Rate
85%Confidence
1Evidence
2023-06-15First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
redis 7.0 active — — —
redis 7.2 active — — —
redis 6.2 active — — —

Root Cause

XCLAIM command timed out because the consumer group has no pending messages that match the specified idle time or count.

generic

中文

XCLAIM 命令超时，因为消费者组中没有匹配指定空闲时间或数量的待处理消息。

Official Documentation

https://redis.io/commands/xclaim/

Workarounds

  1. 85% success Use XPENDING to check the pending message list before claiming, then adjust idle time or count accordingly: XPENDING mystream mygroup 
    Use XPENDING to check the pending message list before claiming, then adjust idle time or count accordingly:
XPENDING mystream mygroup
  2. 80% success Ensure consumers are actively processing messages to generate pending entries; if idle, use XREADGROUP with a valid consumer name. 
    Ensure consumers are actively processing messages to generate pending entries; if idle, use XREADGROUP with a valid consumer name.

中文步骤

  1. Use XPENDING to check the pending message list before claiming, then adjust idle time or count accordingly:
XPENDING mystream mygroup
  2. Ensure consumers are actively processing messages to generate pending entries; if idle, use XREADGROUP with a valid consumer name.

Dead Ends

Common approaches that don't work:

  1. 60% fail

    Timeout increase does not create pending messages; the root cause is lack of messages to claim.

  2. 70% fail

    Restarting resets group state but does not address the missing pending messages; messages may still be absent.

  3. 90% fail

    Deleting the stream removes all messages, making the claim even more impossible.