Default bucket has "Hard Out of Memory Error"
We are experiencing the following error on our live membase servers:
Hard Out Of Memory Error. Bucket "default" on node "node.two.co.uk" is full. All memory allocated to this bucket is used for metadata.
We resolved this issue by increasing the memory allocated to the bucket. But we are not expecting this error. Below is the configuration of our membase cache.
No of Nodes in Cluster: 2
No of buckets in total: 6
Bucket with error: default
Bucket using replication: Yes
Bucket per node memory allocation: 512MB
The membase bucket monitor page on the web console reported the bucket to be 53% full (http://node.two.co.uk:8091/index.html#sec=monitor_buckets)
We would like to know considering the bucket was only 53% full why we were getting this error?