All, I have a feed of 110 messages/second of about 150 bytes each which I'm routing through a default-settings ActiveMQ 5.15.8 server and sending on to a topic. Everything works fine until I set up a durable subscription, at which point iostat (Ubuntu 18.04LTS) reports about 300tps and about 2-3 megabytes a second of disk writes, which seems like an awful lot of the message rate and size, and it's slowing down other processing on the server. Is this normal and expected?
The server is within Amazon EC2 and I can easily add an additional disk for the KahaDB directory, but can anyone point me at a resource that will help me reduce the I/O requirements of persisting all these messages to disk? I am open to any suggestions. Peter -- OpenTrainTimes Ltd. registered in England and Wales, company no. 09504022. Registered office: 13a Davenant Road, Upper Holloway, London N19 3NW
