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Anyone had a problem with Redis suddenly spiking and then crashing the server? we have had a recurring problem with Magento2. Redis suddenly gets hit with masses of data which makes it unavailable and it eventually crashes.

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Did you check dmesg / kern.log, to make sure it didn't get killed by the system OOM killer?

It is also possible, that you set up redis maxmemory to small and are hitting a memory limit inside redis.

If you really are getting hit with lots of data, you can use the monitor command inside redis-cli, to check out the data.

  • Thanks for the response. It is not hitting memory constraints but maxing the CPU at 100% but it is getting large objects suddenly. – Dave Gill Nov 27 '19 at 9:35

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