On Tue, 14 May 2013, Boylan, James wrote:
Oh! I missed the P.
I'll have to look into that. Our log servers are handling considerably more
than 1mb/sec so I'm going to have to figure out a means of testing this
overall performance. David was saying that he had heard of people sending
1mb/sec using imtcp. Do we have any estimates on what imptcp could handle?
not 1MB/sec, 1M messages/sec several hundred times more traffic
I've maxed out Gig-E with rsyslog at 380K messages/sec and other people with
10Gig-E have reported getting to 1 million messages per second.
David Lang
-- James
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Rainer Gerhards
Sent: Tuesday, May 14, 2013 8:51 AM
To: rsyslog-users
Subject: Re: [rsyslog] Does rsyslog use ephemeral ports?
im*p*tcp I said, not imtcp ;)
On Tue, May 14, 2013 at 3:47 PM, Boylan, James <[email protected]>wrote:
We'll definitely be using imtcp in the short term, though we are
considering imrhelp in the long term.
-- James
-----Original Message-----
From: [email protected] [mailto:
[email protected]] On Behalf Of Rainer Gerhards
Sent: Tuesday, May 14, 2013 8:45 AM
To: rsyslog-users
Subject: Re: [rsyslog] Does rsyslog use ephemeral ports?
If you don't need TLS, I recommend imptcp as an input. It handles even
larger loads and uses less CPU (but is linux specific).
Rainer
On Tue, May 14, 2013 at 3:38 PM, Boylan, James
<[email protected]
wrote:
I'm investigating issues with the current syslog server that is
running in our environment. The information I had found was they
were running into issues with the instances reaching a connection
limit on the port that resulted in them running multiple instances.
I'm beginning to suspect it had more to do with how the connections
were being managed than a set limit of how many connections were
being able to be supported by the specific fixed port.
Thanks David. Based on the performance I've been seeing with
Rsyslog, the fact that is also uses a fixed port supports my theory.
-- James
-----Original Message-----
From: [email protected] [mailto:
[email protected]] On Behalf Of David Lang
Sent: Tuesday, May 14, 2013 7:31 AM
To: rsyslog-users
Subject: Re: [rsyslog] Does rsyslog use ephemeral ports?
On Tue, 14 May 2013, Boylan, James wrote:
Greetings!
I'm trying to get a better idea on the number of connections a
single
Rsyslog server can support. I currently have it running in our
pre-production environment as a smoke test for performance, but I
want to check on this prior to moving it into our production environment.
Does it use ephemeral ports or is it using a static port with a
finite
amount of load it can handle?
It uses ephemeral ports as the source for outbound connections, the
way just about everything does.
It uses fixed ports for inbound connections, the way just about
everything does.
people have reported rsyslog handling 1M logs/sec, and this is not
limited by the network ports. What are you referring to when you say
"a static port with a finite amount of load it can handle"?
David Lang
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