11-27-2015
Quote:
Originally Posted by
coolatt
hello all,
on linux servers sometimes any of these resources (cpu,memory,disk) get a spike when you are not in front of the server.
the duration of these spikes might be 5 mins or even whole weekend.
my question is there a good way of capturing the events that caused these issues ( cpu or memory) that can later be used to investigate and find a solution.
p.s am not talking about monitoring tools like caccti,nagios etc.
thanks
If this is only a problem when you are not in front of the server, you can either always stand in front of the server or you can tell us what you do while standing in front of the server that keeps the spikes from happening or being a problem. Then maybe we can help you write a script that would do what you do while standing in front of the server that keeps it from being a problem (even when you're not standing there).
10 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
Hi,
I am seeing very high kernel usage and very high load averages on my system (Although we are not loading much data to our database). Here is the output of top...does anyone know what i should be looking at?
Thanks,
Lorraine
last pid: 13144; load averages: 22.32, 19.81, 16.78 ... (4 Replies)
Discussion started by: lorrainenineill
4 Replies
2. UNIX for Dummies Questions & Answers
I have a dedicated server running centos. It is "slightly managed" meaning I get a little help if I desperately need it; otherwise on my own.
Many of the programs on this server I've had to write myself (less than optimal code for sure). Others are commercial but some are renowned
resource... (2 Replies)
Discussion started by: blakekr
2 Replies
3. UNIX for Dummies Questions & Answers
Hi There,
I'm trying to find a way to gather resource usage information (CPU, Memory & Virtual Memory) for a single process in a scripted way.
I've looked at vmstat & top but I can't figure out how to use them to get the information for a single process.
can any one help with this?
... (2 Replies)
Discussion started by: Murph
2 Replies
4. Shell Programming and Scripting
I would like to write shell/perl script which identifies the top unix processes that are performing high disk I/O's or/and writes
If any one knows the solution please help me?
-Swamy (0 Replies)
Discussion started by: avsswamy
0 Replies
5. UNIX for Advanced & Expert Users
Guys,
Is there any UNIX command that captures the 'Unix process which is performing high disk I/O reads and writes'.
can you help me in this?
-Swamy (6 Replies)
Discussion started by: avsswamy
6 Replies
6. UNIX for Dummies Questions & Answers
Hi. First of all, would 4 or 5 websites, 1 ftp server (when downloading by someone or a few persons or one, concretize) and one mail server (not many emails, just to sound official and have a nice, spam-free email for myself). Websites with not that many, but some, later more visitors, quite... (0 Replies)
Discussion started by: newn
0 Replies
7. AIX
Hi Guys,
I need to write a script capable of identifying when a high cpu utilitzation process. It sounds simple but we are on a AIX 5.3 environment with Virtual CPU's (VP's) and logical CPU's. Please any ideas or tips would be highly appreciated. Thanks.
Harby. (6 Replies)
Discussion started by: arizah
6 Replies
8. UNIX for Advanced & Expert Users
Hi all,
I have a solaris box, and I would like to know if anyone has commands to check kernel usage's.
Scenario:
solaris box is having cpu 100 % issue. .
I have used sar -u 10 5 it shows 35 % kernel usage.
If you can guide with some docs that would be good..
waiting for... (1 Reply)
Discussion started by: SunSolars_admin
1 Replies
9. UNIX for Advanced & Expert Users
Hello I am trying to identify what is consuming my I/O (looks 100% in glance).
Howver on my system HP-UX 104 B.11.11 U 9000/800
The only option in iostat seems to be -t which is not very usefull
iostat -p is not available.
Please advice on how I should proceed.
Thank you in advance. (3 Replies)
Discussion started by: drbiloukos
3 Replies
10. Infrastructure Monitoring
I need to record min and max resources for RAM, & CPU for each command's execution in a shell script. Maybe going in details I would also be interested to capture plots with resource usage i.e.start to end of individual command with respect to time in a shell script.
Please share ideas. (0 Replies)
Discussion started by: vaibhavvsk
0 Replies
LEARN ABOUT CENTOS
gldrawbuffer
GLDRAWBUFFER(3G) OpenGL Manual GLDRAWBUFFER(3G)
NAME
glDrawBuffer - specify which color buffers are to be drawn into
C SPECIFICATION
void glDrawBuffer(GLenum mode);
PARAMETERS
mode
Specifies up to four color buffers to be drawn into. Symbolic constants GL_NONE, GL_FRONT_LEFT, GL_FRONT_RIGHT, GL_BACK_LEFT,
GL_BACK_RIGHT, GL_FRONT, GL_BACK, GL_LEFT, GL_RIGHT, and GL_FRONT_AND_BACK are accepted. The initial value is GL_FRONT for
single-buffered contexts, and GL_BACK for double-buffered contexts.
DESCRIPTION
When colors are written to the frame buffer, they are written into the color buffers specified by glDrawBuffer. The specifications are as
follows:
GL_NONE
No color buffers are written.
GL_FRONT_LEFT
Only the front left color buffer is written.
GL_FRONT_RIGHT
Only the front right color buffer is written.
GL_BACK_LEFT
Only the back left color buffer is written.
GL_BACK_RIGHT
Only the back right color buffer is written.
GL_FRONT
Only the front left and front right color buffers are written. If there is no front right color buffer, only the front left color
buffer is written.
GL_BACK
Only the back left and back right color buffers are written. If there is no back right color buffer, only the back left color buffer is
written.
GL_LEFT
Only the front left and back left color buffers are written. If there is no back left color buffer, only the front left color buffer is
written.
GL_RIGHT
Only the front right and back right color buffers are written. If there is no back right color buffer, only the front right color
buffer is written.
GL_FRONT_AND_BACK
All the front and back color buffers (front left, front right, back left, back right) are written. If there are no back color buffers,
only the front left and front right color buffers are written. If there are no right color buffers, only the front left and back left
color buffers are written. If there are no right or back color buffers, only the front left color buffer is written.
If more than one color buffer is selected for drawing, then blending or logical operations are computed and applied independently for each
color buffer and can produce different results in each buffer.
Monoscopic contexts include only left buffers, and stereoscopic contexts include both left and right buffers. Likewise, single-buffered
contexts include only front buffers, and double-buffered contexts include both front and back buffers. The context is selected at GL
initialization.
ERRORS
GL_INVALID_ENUM is generated if mode is not an accepted value.
GL_INVALID_OPERATION is generated if none of the buffers indicated by mode exists.
ASSOCIATED GETS
glGet() with argument GL_DRAW_BUFFER
SEE ALSO
glBlendFunc(), glColorMask(), glDrawBuffers(), glLogicOp(), glReadBuffer()
COPYRIGHT
Copyright (C) 1991-2006 Silicon Graphics, Inc. This document is licensed under the SGI Free Software B License. For details, see
http://oss.sgi.com/projects/FreeB/.
AUTHORS
opengl.org
opengl.org 06/10/2014 GLDRAWBUFFER(3G)