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Erik Johnston
7630492e90
Add a metric for the number of times we see a stall due to being given a future token. This would have caught https://github.com/element-hq/synapse/issues/20080, where lots of sync streams got stuck due to a stream not getting replicated correctly.
2 lines
185 B
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2 lines
185 B
Plaintext
Add a `synapse_notifier_wait_for_stream_token_timeouts` metric, counting the times a request gave up waiting for a worker to catch up to a stream token, labelled by the lagging stream.
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