What is the difference beetween max connections per route and max connections total in apache HttpClient?

Question

I'm trying to understand what is the difference between them. I tried to read the documentation but it does not help alot.

HttpClientBuilder
                    .create()
                    .setMaxConnPerRoute(maxConnectionsPerRoute)
                    .setMaxConnTotal(maxConnectionTotal)
                    .build();

It's the same of setDefaultMaxPerRoute and setMaxTotal from PoolingHttpClientConnectionManager:

final PoolingHttpClientConnectionManager poolingmgr = new PoolingHttpClientConnectionManager();
poolingmgr.setDefaultMaxPerRoute(max);
poolingmgr.setMaxTotal(2 * max);

score 19 · Accepted Answer · edited Sep 25 '19 at 15:20

19

setMaxConnTotal is the total maximum connections available in the connection pool. setMaxConnPerRoute is the total number of connections limit to a single port or url.

Hope it is clear now

edited Sep 25 '19 at 15:20

Suraj Rao

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answered Sep 25 '19 at 15:14

Sukh

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can anyone suggest what should be production values for this considering 1000 TPS traffic? – Saurabh Galande Sep 14 '20 at 06:12
3

@Saurabhgalande it should be at least 1000 TPS / (1 / TIME) = TIME * 1000 TPS number of pool size. Here TIME means how many seconds each request takes time in Seconds. I.e if On average, server responds in 0.5 second and your TPS=1000, then pool size of 500 should be lower limit. – RustamIS Dec 22 '20 at 03:20

What is the difference beetween max connections per route and max connections total in apache HttpClient?

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