Insufficient memory to create a queue

I'm a poor kid. I can't afford to buy extra memory for my queue. Too bad. And too sad.

After the root access issue has been resolved in WebSphere MQ Explorer, I am able to make a queue, but there is a prompt showing the following details to me:

****************************************
* Command: /opt/mqm/bin/crtmqm  Q1
****************************************
WebSphere MQ queue manager created.
Directory '/var/mqm/qmgrs/Q1' created.
The queue manager is associated with installation 'Installation1'.
AMQ6024: Insufficient resources are available to complete a system request.
exitvalue = 36 

I wasn't sure whether this is a general greeting or welcome message after a queue has been created? But I have verified the queue was there in the path /var/mqm/qmgr. To further verify this message isn't friendly to me, I issue another command sudo strmqm Q1, I got the same result:

$ sudo strmqm Q1
The system resource RLIMIT_NOFILE is set at an unusually low level for WebSphere MQ.
WebSphere MQ queue manager 'Q1' starting.
The queue manager is associated with installation 'Installation1'.
AMQ6024: Insufficient resources are available to complete a system request.

Clearly, this isn't a good thing. According to experts advice, there should be an error log locate at the path: /var/mqm/errors/. When I open the file located in that path, I see something like below:

+-----------------------------------------------------------------------------+
|                                                                             |
| WebSphere MQ First Failure Symptom Report                                   |
| =========================================                                   |
...
...
...
| Comment1          :- Failed to get memory segment: shmget(0x00000000,       |
|   73834496) [rc=-1 errno=22] Invalid argument                               |
| Comment2          :- Invalid argument                                       |
| Comment3          :- Configure kernel (for example, shmmax) to allow a      |
|   shared memory segment of at least 73834496 bytes                          |
|                                                                             |
+-----------------------------------------------------------------------------+

This reminds me there are additional settings for WebSphere MQ on Linux systems needs to be configured. According to the guide, there is minimum configuration are required for WebSphere MQ:

    kernel.shmmni = 4096
    kernel.shmall = 2097152
    kernel.shmmax = 268435456
    kernel.sem = 500 256000 250 1024
    fs.file-max = 524288
    kernel.pid-max = 120000
    kernel.threads-max = 48000

Among the settings, only shmmax and sem are not up to par. Below is what I have at current system:

$ cat /proc/sys/kernel/shmmax
33554432
$ cat /proc/sys/kernel/sem
250 32000 32 128

The following steps are what I did to fix this issue:

1. Open the file /etc/sysctl.conf.
2. Append the require configuration for shmmax and sem to the end of the file.
3. Reload the configuration with the command sysctl -p.