Bryan Boreham 1ed94142fc remote-write: slow down retries to avoid DDOS (#9634) ... * remote-write: slow down retries to avoid DDOS Increase the default max retry time from 100ms to 5 seconds. Remote write calls are retried after a recoverable error such as the back-end returning 500. Prometheus waits the minimum time and retries, then doubles the wait on each subsequent retry until the maximum is reached. If some data is still getting through, remote-write will also increase shards, and the default maximum is 200. 200 shards sending every 100ms is 20 calls per second, to a back-end that is already in trouble. 5 seconds was chosen to match the default BatchSendDeadline: if we can afford to wait that long for no response, then we can wait the same time to retry. We will reach 5 seconds after 9 successive failures. Signed-off-by: Bryan Boreham <bjboreham@gmail.com> * Update config doc for max_backoff change Signed-off-by: Bryan Boreham <bjboreham@gmail.com>		2021-11-09 14:08:24 -08:00
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testdata	Enable tls_config in oauth2 (#9550)	2021-10-20 23:10:18 +02:00
config_default_test.go	Add new Go build tags.	2021-08-27 10:24:14 +02:00
config_test.go	Move packages out of deprecated pkg directory	2021-11-09 08:03:10 +01:00
config_windows_test.go	Invert service discovery dependencies (#7701)	2020-08-20 13:48:26 +01:00
config.go	remote-write: slow down retries to avoid DDOS (#9634)	2021-11-09 14:08:24 -08:00