Displaying 20 results from an estimated 2000 matches similar to: "question on scalability"
2015 Feb 19
2
listen backlog patch
Hello Icecast-dev,
I am new to this list.
I am working for the NPO, the Dutch Public Broadcasting agency.
We do a lot of icecast streaming. We run at least 20 icecast server
instances on our media streaming cluster.
We ran into an issue that clients which where connecting to our streams
seemed to be 'hanging' on the connection setup frequently. The client
'thinks' it is
2014 Jan 24
1
Possible SYN flooding on port 8000. Sending cookies
Hi
*Problem *- I'm running Icecast in a VM container on OpenVZ. Syslog on the
hardware node (HN) shows these error messages:
Jan 23 18:43:05 HN kernel: [27469893.430615] possible SYN flooding on port
8000. Sending cookies.
Jan 23 21:37:40 HN kernel: [27480362.817944] possible SYN flooding on port
8000. Sending cookies.
Jan 23 23:43:50 HN kernel: [27487929.582025] possible SYN flooding on
2015 Feb 19
2
listen backlog patch
Hi Thomas,
I don't know if you like top or bottom quoting. That seems to be a
big-little endian thing ;-)
So, I will top quote and inline quote.
Please see my comments inline, below.
Kind regards,
Stephan
On 02/19/2015 04:18 PM, "Thomas B. R?cker" wrote:
> Hi,
>
> On 02/19/2015 03:07 PM, Stephan Leemburg wrote:
>> Hello Icecast-dev,
>>
>> I am new to
2013 Jan 30
2
About kern.ipc.somaxconn and netstat
Hello.
We have a webserver using FreeBSD, we read about tunning kern.ipc.somaxconn (http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/configtuning-kernel-limits.html) so the OS can handle all the connections. Is there a way to know how many connections are established in a certain moment?. I know about netstat(1) but is there any other command that we can use to know the exact amount of
2018 Jul 20
2
database node / possible SYN flooding on port 3306
Hi folks,
I have here a database node running
# rpm -qa | grep mysql-server
mysql55-mysql-server-5.5.52-1.el6.x86_64
on
# virt-what
vmware
that seems to have a connection problem:
# dmesg |grep SYN |tail -5
possible SYN flooding on port 3306. Sending cookies.
possible SYN flooding on port 3306. Sending cookies.
possible SYN flooding on port 3306. Sending cookies.
possible SYN flooding on
2020 Nov 16
1
about imap-login: Error and imap: Error after Version-UP
> On 16/11/2020 13:44 ????? <morikawa-k6 at itec.hankyu-hanshin.co.jp> wrote:
>
>
> We have upgraded dovecot from 2.0.9 (centos6) to 2.2.36 (centos8).
>
> If more than 1000 users log in, the following error will occur.
> -------------------------
> Nov 16 11:33:00 xxxxxxxx dovecot[1361]: imap-login: Error: master(imap):
> net_connect_unix(imap) failed: Resource
2006 Feb 05
2
R socket communication
Hello, I tried to code a R socket server but I did not succeed.
The problem is that once the R socket server is created,
I call the readLines function and then R gets blocked.
The client seems to work fine since I tested it with a PERL server.
I tried many combination of params in the socketConnection but
none of them worked.
I have seen some examples where the server sends something to a
client
2020 Nov 17
1
about imap-login: Error and imap: Error after Version-UP
You need to configure stats service client limit and imap service client limit. Those are different services than imap-login service.
Aki
> On 17/11/2020 01:28 ????? <morikawa-k6 at itec.hankyu-hanshin.co.jp> wrote:
>
>
> Aki-san
>
> I have already seen that page.
> Is the setting method wrong?
>
> Is there any other tuning point?
>
> morikawa
>
2004 Nov 06
2
What determines DROP versus delay ("BACKLOG")?
HTB:
class htb 1:40 parent 1:1 leaf 40: prio 3 rate 358Kbit ceil 529Kbit \
burst 6Kb cburst 2260b
Sent 145871726 bytes 97293 pkts (dropped 69, overlimits 0)
rate 56741bit 37pps backlog 23p
lended: 77429 borrowed: 19841 giants: 0
I would like to increase "backlog" because I think that would decrease
"dropped". 23 packets of 1500 bytes each is only 34,500 bytes. IMO,
there
2015 Nov 23
2
samba4 ldap high load and port queue overflow
Hi all.
I have samba 4.2.3 on freebsd 10.1 server. There are three DC and about
350 PC on domain. DCs have 3 CPU and 3GB RAM. Some servers with services
like apache, exim, dovecot, etc use samba4 ldap (port 389) for user
authentication. Some times ago after adding some services to use ldap I
found, that samba4 cannot serve all ldap requests. Every 10-30 minutes I
see in DCs logs:
dc1 kernel:
2018 Jul 21
1
database node / possible SYN flooding on port 3306
> Am 20.07.2018 um 18:52 schrieb Nataraj <incoming-centos at rjl.com>:
>
> On 07/20/2018 03:56 AM, Leon Fauster via CentOS wrote:
>> Hi folks,
>>
>> I have here a database node running
>>
>> # rpm -qa | grep mysql-server
>> mysql55-mysql-server-5.5.52-1.el6.x86_64
>>
>> on
>>
>> # virt-what
>> vmware
>>
2012 Nov 20
3
Simple Traffic Shaping Problem
Hello,
I have a problem with simple traffic shapping in shorewall, my current
configuration is:
zones
vlan10 ipv4 #
interfaces
vlan10 vlan10 detect tcpflags,routeback
shorewall.conf
TC_ENABLED=Simple
tcinterfaces
vlan10 Internal 1mbit:50kb
shorewall show tc
Device vlan10:
qdisc prio 5: root refcnt 2 bands 3 priomap 1 2 2 2 1 2 0 0 1 1 1 1 1 1 1 1
2007 May 19
1
Re: LARTC Digest, Vol 27, Issue 26
Hi folks...!!!
I need to generate qdisc statistics to show my 4 class (10, 20, 30, 40),
i`ve all working with HTB and so on, but i need to graph this results
e.gwith RRDTOOL.
I found a script made in perl, that can to graph my 4 class, but i need to
know which IP address on my LAN are using the bandwidth too, in other hand i
need to classify the traffic by IP to show.
This is an out of my
2006 Feb 24
4
why isn''t 1:1 getting the traffic? [filter question]
With the below script, whenever I ping 10.0.16.10 (which matches the
only filter I have), traffic still get''s sent to the default 1:2 class
instead of 1:1 and I don''t know why... Any hints?
(kernel 2.6.12, iproute2-2.6.15)
tc qdisc del dev eth0 root > /dev/null 2>&1
tc qdisc add dev eth0 handle 1: root htb default 2
tc class add dev eth0 classid 1:1 parent 1: htb rate
2007 Dec 15
1
hfsc and bps
Hi!
Do you know somthing about hfsc and bps?
There''s no output for speed only for packets. Doesn''t hfsc support such
a field?
tc -s class show dev eth0
class hfsc 1: root
Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0)
rate 0bit 0pps backlog 0b 0p requeues 0
period 0 level 2
class hfsc 1:11 parent 1:1 sc m1 0bit d 18.0ms m2 1000Kbit ul m1 0bit d
0us m2
2006 May 19
25
iptables CLASSIFY and MARK not working?
I have to match my packets based on MAC address, which I cannot do in
the POSTROUTING chain, so I do it in PREROUTING using MARK. Then, I
match on the MARK in the POSTROUTING chain to do a CLASSIFY. But this
does not seem to work:
wireless-r1 bwlimit # iptables -L -v -n -t mangle
Chain PREROUTING (policy ACCEPT 3353K packets, 941M bytes)
pkts bytes target prot opt in out source
2005 Jan 23
1
Determing the pfifo backlog
Greetings --
in the "Linux Advanced Routing & Traffic Control HOWTO"
chapter 14.1 on bfifo/pfifo it says that:
"you can use this qdisc to determine the backlog on your interface".
But it does not say exactly how.
Command [#tc -s qdisc ls] outputs the number of packets sent so far
but it does not output any info about the backlog.
My first question is whether a command
2010 Apr 22
1
PRIO qdisc + iptables TOS target
i am trying to do some traffic classification using the PRIO qdisc and
i am having a few problems.
I have a root htb class:
tc qdisc add dev imq0 root handle 1: htb default 255 r2q 1
tc class add dev imq0 parent 1: classid 1:1 htb rate 768kbit
and a child PRIO
tc class add dev imq0 parent 1:1 classid 1:99 htb rate 96kbit ceil
600kbit prio 0
tc qdisc add dev imq0 parent 1:99 prio
tc filter
2012 May 22
0
[klibc:master] include: [sys/socket.h] define SOMAXCONN
Commit-ID: 5576c967f86387f8a2eeeaa58d67f3cc6b51853a
Gitweb: http://git.kernel.org/?p=libs/klibc/klibc.git;a=commit;h=5576c967f86387f8a2eeeaa58d67f3cc6b51853a
Author: maximilian attems <max at stro.at>
AuthorDate: Tue, 22 May 2012 17:25:46 +0200
Committer: maximilian attems <max at stro.at>
CommitDate: Tue, 22 May 2012 17:30:09 +0200
[klibc] include: [sys/socket.h] define
2003 Apr 06
1
load testing and tuning a 4GB RAM server
Hello everyone,
First of all, great job on the 4.8-R. We have been a long standing user of
FreeBSD and are very happy with everything.
Now my question. I am trying to stress test a new Dell PowerEdge server
and find the limits of its hardware and my tuning. Here are the server
stats:
* 2x Xeon 2.8 with SMP compiled, hyperthreading NOT compiled in kernel
* 4 GB of RAM, 8 GB of swap on Raid 1