scheduler concurrency in a cluster

[fiaschi]

I noticed some schedulers with a cronjob, but can they make some concurrency problems in a kubernates cluster? How can I avoid them?

[pushchris]

The schedulers use Redis locks to ensure they are only being run by one server. If that server crashes or is remove, after a timeout another instance can claim the lock. There shouldn't be any issues running this distributed across many servers as long as they share a single Redis cache