The graph above "Redis - commands queued" shows the metric got with the command "LLEN packetbeat" and "Redis - tps" show the metric total_commands_processed per second returned by INFO. When redis-server is reaching memory limit (used_memory is reaching the redis setting maxmemory), the list is empty. We have tried some commands, like flushdb or flushall, but redis-serveur doesn't free memory.
Currently, I have checked used_memory, checked total_net_input_bytes and total_net_output_bytes :
total_net_input_bytes:207476697388
total_net_output_bytes:395998419730
used_memory:1335612104
"LLEN packetbeat" returns 0, and "KEYS *" returns "(empty list or set)". What does it mean, total_net_input_bytes should be equal to total_net_output_bytes if all data is consumed by the logstash redis input pluggin ? Why 1Go memory used and no data stored ?
Yes, we have planned to upgrade to 1.0, but I ask me if it could solve our issue.