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Chapter 4. Removed functionality
This chapter lists functionalities that were supported in Red Hat OpenShift Data Foundation but are no longer available in OpenShift Data Foundation 4.18.
4.1. MDSCacheUsageHigh alert
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MDSCacheUsageHigh alert has been removed. This alert was querying rss to send high MDS cache usage warning. However,rss is not the right metrics for this. mds_co_bytes is the correct metric but Ceph does not expose the metric. As a result, wrong alerts were being triggered. The alert has been removed until a better solution is identified.
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