Re: max connection issue

[Akshath]

You must be hitting one of the OS limits (file [even sockets are files] or threads).. do check you OS limits using. 

ulimit -a

Do refer the following links for more info..

http://docs.basho.com/riak/1.2.1/cookbooks/Open-Files-Limit/

http://glassonionblog.wordpress.com/2013/01/27/increase-ulimit-and-file-descriptors-limit/

On Saturday, 1 March 2014 08:21:29 UTC+5:30, Sanjay Bharmoria wrote:

Hi I am using quick server 1.4.7,
I cannot go beyond 1022 Clint connection. I have set the MX limit is 2000 but still the issue is same...
OS RHEL5.5 32BIT 4GB RAM.

WHEN CONNECTION REACH 1022 AFTER that quick server is not responding to new client request

[Akshath]

The configuration looks okay. 

Can you share the application log (java logging).. do you have any error in there ? Also please do share your server xml file. Thanks

On Saturday, 1 March 2014 14:36:46 UTC+5:30, Sanjay Bharmoria wrote:

here is ulimit -a

i want to conenct 5000 client to quick server and h/w is IBM 3550 but it is not making more than  1022.

core file size          (blocks, -c) 0

data seg size           (kbytes, -d) unlimited

scheduling priority             (-e) 0

file size               (blocks, -f) unlimited

pending signals                 (-i) 64457

max locked memory       (kbytes, -l) 32

max memory size         (kbytes, -m) unlimited

open files                      (-n) 99999

pipe size            (512 bytes, -p) 8

POSIX message queues     (bytes, -q) 819200

real-time priority              (-r) 0

stack size              (kbytes, -s) 1024

cpu time               (seconds, -t) unlimited

max user processes              (-u) 64457

virtual memory          (kbytes, -v) unlimited

file locks                      (-x) unlimited

[Akshath]

Log looks fine.. I can't find any errors or exception.

XML File:

- max-connection value is 1500

But since you are looking up to 5k.. you may want to set this to 5200 (200 buffer)

- object-pool/max-active is set to 2000

    This should always be higher than max-idle value and since you are looking at 5k concurrent users.. set this around 5500

- object-pool/thread-object-pool/max-active is set to 3000

    This should always be higher than max-idle value and since you are looking at 5k concurrent users.. set this around 5500

Also what happens after 1022 client are connected.. does the new client

 1. Does the new client connect ? or You get connection refused ?

 2. If you are able to connection; do you get notification in your got connected method ?

 3. What error do you encounter at the client side ?

Other Tips on the xml:

- console-logging-level is set to DEBUG

This is not a valid value. Its always recommended you set this to WARNING or higher..  too much console logging can show your server down

- communication-logging

You may want to turn off this in production

On Sunday, 2 March 2014 12:05:45 UTC+5:30, Sanjay Bharmoria wrote:

Thanks Akshath... here is the xml file and log attached...

<?xml version="1.0"?>

<quickserver>

<name>OmcTcpServer </name>

<port>6790</port>

<bind-address></bind-address>

<client-event-handler>

com.hns.hss.nmf.server.tcp.MessageCommandHandler

</client-event-handler>

<client-bytebuffer-handler>

com.hns.hss.nmf.server.tcp.MessageCommandHandler

</client-bytebuffer-handler>

<!--<client-data>

</client-data>-->

<default-data-mode>

<data-type-in>Byte</data-type-in>

<data-type-out>Byte</data-type-out>

</default-data-mode>

<!--The Time out for Ghost Socket-->

<timeout>180000</timeout>

<max-connection>1500</max-connection>

<console-logging-level>DEBUG</console-logging-level>

<console-logging-formatter>

org.quickserver.util.logging.SimpleConsoleFormatter

</console-logging-formatter>

<communication-logging>

<enable>true</enable>

</communication-logging>

<init-server-hooks>

<class-name>

org.quickserver.util.logging.SimpleJDKLoggingHook

</class-name>

</init-server-hooks>

<server-mode>

<blocking>true</blocking>

</server-mode>

<object-pool>

<max-active>2000</max-active>

<max-idle>3000</max-idle>

<thread-object-pool>

<max-active>3000</max-active>

<max-idle>5000</max-idle>

</thread-object-pool>

</object-pool>

<advanced-settings>

<charset>ISO-8859-1</charset>

<use-direct-byte-buffer>true</use-direct-byte-buffer>

<byte-buffer-size>61440</byte-buffer-size>

<backlog>2048</backlog>

<socket-linger>-1</socket-linger>

<debug-non-blocking-mode>false</debug-non-blocking-mode> 

</advanced-settings>

<!-- Config QSAdminServer -->

<qsadmin-server>

<port>2223</port>

<server-banner>

QSAdminServer Started on port : 2223

</server-banner>

<command-shell>

<enable>true</enable>

</command-shell>

<communication-logging>

<enable>false</enable>

</communication-logging>

<server-mode>

<blocking>false</blocking>

</server-mode>

</qsadmin-server>

<!-- Config QSAdminServer -->

<!--<application-jar-path>../dist/tcpServer.jar</application-jar-path> -->

</quickserver>

[Sanjay Bharmoria]

Thanks Akshath for your kind support. 

Issue has been resolved.