SSL and connection pooling

[Erlend Garåsen <e....@usit.uio.no>]

We are unsure whether we should use SSL in order to communicate with our 
Solr server since it will increase the cost of creating http 
connections. If we go for SSL, is it advisable to do some additional 
settings for the HttpClient in order to reduce the connection costs?

After reading the Commons Http Client documentation, it is not clear to 
me whether a connection pooling mechanism is enabled by default since 
the documentation differs between version 4.1 and 3.1 (Solr uses the 
latter).

Solr will run on Resin 4 with Apache 2.2, so perhaps we need to do some 
additional adjustments in the httpd.conf file as well in order to 
prevent Apache from closing the connections.

Erlend

-- 
Erlend Garåsen
Center for Information Technology Services
University of Oslo
P.O. Box 1086 Blindern, N-0317 OSLO, Norway
Ph: (+47) 22840193, Fax: (+47) 22852970, Mobile: (+47) 91380968, VIP: 31050

Re: SSL and connection pooling

[Em <ma...@yahoo.de>]

Am 16.03.2011 14:12, schrieb Erlend Garåsen:
>
> We are unsure whether we should use SSL in order to communicate with
> our Solr server since it will increase the cost of creating http
> connections. If we go for SSL, is it advisable to do some additional
> settings for the HttpClient in order to reduce the connection costs?
>
> After reading the Commons Http Client documentation, it is not clear
> to me whether a connection pooling mechanism is enabled by default
> since the documentation differs between version 4.1 and 3.1 (Solr uses
> the latter).
>
> Solr will run on Resin 4 with Apache 2.2, so perhaps we need to do
> some additional adjustments in the httpd.conf file as well in order to
> prevent Apache from closing the connections.
>
> Erlend
>
first: You have to use SSL when you have to. If you can live with
 the fact that someone could watch your internal

      clear-text-data-streams, than do not use SSL. On the other hand:
      If you can not, than you definitely have to use SSL. <br>
      That should be the main-point for your technical dicission. Not
      performance.

      second: In my last checkout's ( a few weeks ago ) Solr repository,
      the CommonsHttpSolrServer uses a MultiThreaded-connection with 32
      connections per host and 128 total connections.

      Hope this helps.

      Regards,
      Em