We are having two Nginx Server acting as Caching Server behind haproxy loadbalancer. We are observing a high load on one of the server though we see equal number of requests coming on the server from application per sec.

We see that out of two server on which load is high i.e around 5 , response time /latency is high in delivering the content . On same server attached stats module screenshot shows more number of requests in "Writing" as comapred to other one on which load is 0.5 and response time /latency is also low .

Please help what might be causing high load and high number of writing on one of server.

Active connections: 8619
server accepts handled requests
33204889 33204889 38066647
Reading: 0 Writing: 755 Waiting: 7863


Active connections: 10959
server accepts handled requests
34625312 34625312 39974933
Reading: 0 Writing: 3700 Waiting: 7259