I am following this page for calibrating raspberry pi camera module. After executing the command
rosrun camera_calibration cameracalibrator.py --size 8x6 --square 0.108 image:=/rosberrypi_cam/image_raw camera:=/rosberrypi_cam
I am getting a half blank display without any checkerboard and the buttons are disabled. There is no X, Y and size also in the display. I am using rosberrypi_cam driver as suggested in the page...
rosrun rosberrypi_cam rosberrypicam_node
I am unable to calibrate the monocular camera. Please help with a possible way out.
For anybody stumbling in this page or with similar problems calibrating the Camera Module v2 on the Raspberry, the answer is simple: don't do it on the Pi. Do the calibration remotely on a powerful pc.
On the Pi, just launch the capture:
roslaunch raspicam_node camera_module_v2_1920x1080_30fps_autocapture.launch
where:
#> cat camera_module_v2_1920x1080_30fps_autocapture.launch
<?xml version="1.0"?>
<launch>
<arg name="name" default="raspicam_node" />
<node type="raspicam_node" pkg="raspicam_node" name="$(arg name)" output="screen">
<param name="camera_info_url" value="package://$(arg name)/camera_info/camera_module_v2_1920x1080.yaml"/>
<param name="width" value="1920"/>
<param name="height" value="1080"/>
<param name="framerate" value="30"/>
<param name="camera_frame_id" value="raspicam"/>
</node>
<node pkg="rosservice" type="rosservice" name="start_capture" args="call --wait $(arg name)/start_capture"/>
</launch>
On the remote host, just change the $ROS_MASTER_URI, check that all the topics are exported correctly with rostopic list and then launch:
rosrun camera_calibration cameracalibrator.py --size 8x6 --square 0.108 image:=/raspicam_node/image_raw camera:=/raspicam_node
Related
I am attempting a quick tutorial on fuzz testing and using Peach Fuzzer to do so. After running the fuzzer, i receive the error:
Could not start monitor "WindowsDebugger". Error, unable to locate WinDbg please specify using "WinDbgPath" parameter.
I'm really unsure how to begin fixing this problem. Any help would be appreciated.
Where is your WindowsDebugger? It would have to reside on the machine that is running the program that is being fuzzed.
Also, what does your peach pit look like for the Agent entity? Does it look similar to something like this?
<Agent name="RemoteAgent" location="tcp://127.0.0.1:9001">
<!-- Run and attach windbg to a vulnerable server. -->
<Monitor class="WindowsDebugger">
<Param name="CommandLine" value="C:\Documents and Settings\Administrator\Desktop\vulnserver\vulnserver.exe"/>
<Param name="WinDbgPath" value="C:\Program Files\Debugging Tools for Windows (x86)" />
</Monitor>
</Agent>
You can also follow along with this blog post I wrote about using Peach 3 to fuzz a sample network server called VulnServer, http://rockfishsec.blogspot.com/2014/01/fuzzing-vulnserver-with-peach-3.html
I am new Azure development and writing powershell script.
I want to run two cmd files for azure start up tasks. I added these files into solutions and set properties as "copy always".After I add new note into ServiceDefinition.csdef Here it is :
<Startup>
<Task commandLine="Startup\startupcmd.cmd > c:\logs\startuptasks.log" executionContext="elevated" taskType="background">
<Environment>
<Variable name="EMULATED">
<RoleInstanceValue xpath="/RoleEnvironment/Deployment/#emulated" />
</Variable>
</Environment>
</Task>
<Task commandLine="Startup\disableTimeout.cmd" executionContext="elevated" />
</Startup>
It's not deploying and getting this error : Instance 0 of role Web is busy
Now In my question : Is it available multi task tag in <StartUp> or do I have to merge these cmd files to only one ?
As per definition:
The Startup element describes a collection of tasks that run when the
role is started.
So yes, the answer to your concrete question is: Yes, you can define multiple startup tasks.
State Busy is almost fine, in terms it is bit better than cycling! What I would suggest it to enable Remote Desktop and connect to see what is going on with the start up task. Busy is set until all simple tasks have completed and returned 0 exit code. Your task may fail or may hang for a while and that's why you would see busy.
I am trying to create a virtual machine using libvirt using the command:
virsh create file
Contents of "file":
<domain type='qemu' id='3'>
<name>testvm</name>
<memory>100</memory>
<vcpu>1</vcpu>
<os>
<type arch='i686'>hvm</type>
</os>
<devices>
<disk type='file' device='disk'>
<source file='/libtmp/VM-linux.0.2.img'/>
<target dev='hdc'/>
</disk>
</devices>
<on_reboot>restart</on_reboot>
<on_poweroff>preserve</on_poweroff>
<on_crash>restart</on_crash>
</domain>
Here is error which occur.
error: Failed to create domain from file
error: internal error cannot load AppArmor profile 'libvirt-9cb01efc-ed3b-ff8e-4de5-7227d311dd15'
I am able to create the vm without loading the image file.
Everytime the profile name keeps on changing. I tried stopping it and creating the vm but I got the same error.
Any pointers will be very helpful.
I had the same problem and the reason was that I had a bad idea to place readonly cdrom image to /etc like this:
<disk type="file" device="cdrom">
<driver name='qemu' type="raw" />
<source file="/etc/libvirt/qemu/cdrom.iso" />
<target dev='hdb' bus='virtio'/>
<readonly/>
</disk>
Moving to /var removed the error message and allowed to start the virtual machine. This line:
<source file="/var/lib/libvirt/images/cdrom.iso" />
This is a bug in libvirt. See https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/665531
Edit the xml definition of the virtual domain with "virsh edit domainname" command. Replace type='host_device' with type='raw' in the xml definition.
This is a work around but not the correct way. Set AppArmor to complain mode using following command:
sudo aa-complain /usr/sbin/libvirtd
I am setting up CruiseControl.NET and I get the following error message on the webdashboard:
No connection could be made because the target machine actively refused it 127.0.0.1:21234
The Url it is looking for is: tcp://localhost:21234/CruiseManager.rem
However the ccnet website in IIS has its tcp port set to 82.
So I use the following Url to navigate to the webdashboard http://127.0.0.1:82/ccnet/ViewFarmReport.aspx
I tried changing the Tcp port in IIS to 21234 and I get the following error message on the webdashboard:
Tcp channel protocol violation: expecting preamble.
I have also tried opening the port with the following command:
netsh firewall add portopening TCP 21234 CCNET
When I try and start the CCNET service I get the following message
The CruiseControl.NET Server service started then stopped. Some services stop automatically if they have no work to do....
Can anyone help me with this problem please?
EDIT - Adding config file
<cruisecontrol xmlns:cb="urn:ccnet.config.builder">
<cb:define PublishDir="C:\Deploy\Portal2.0Build"/>
<project name="Portal2.0">
<workingDirectory>C:\PortalCruiseControl\Working</workingDirectory>
<artifactDirectory>C:\PortalCruiseControl\Artifacts</artifactDirectory>
<webURL>http://192.168.17.59:82/ccnet</webURL>
<triggers>
<intervalTrigger name="continuous" seconds="10"
buildCondition="IfModificationExists"/>
</triggers>
<sourcecontrol type="svn">
<trunkUrl>https://portal2003.local:8443/svn/portalv2.0/trunk</trunkUrl>
<executable>C:\Program Files (x86)\VisualSVN Server\bin\svn.exe</executable>
<username>ccnet</username>
<password>***</password>
<cleanCopy>true</cleanCopy>
</sourcecontrol>
<tasks>
<msbuild>
<executable>
C:\WINDOWS\microsoft.net\Framework64\v3.5\MSBuild.exe
</executable>
<projectFile>Portal2.0.sln</projectFile>
<buildArgs>
/target:build;publish /p:Configuration=Release /p:MSBuildExtensionsPath=C:\Progra~2\MSBuild /p:MSBuildEmitSolution=1 /p:publishdir=C:\Deploy\Portal2.0Build /verbosity:diag
</buildArgs>
<logger>
C:\Program Files (x86)\CruiseControl.NET\server\ThoughtWorks.CruiseControl.MSBuild.dll
</logger>
</msbuild>
</tasks>
<labeller type="assemblyVersionLabeller">
<major>2</major>
<minor>0</minor>
<incrementOnFailure>false</incrementOnFailure>
</labeller>
<publishers>
<statistics />
<xmllogger />
<package>
<name>ZipFilePublish</name>
<compression>9</compression>
<always>false</always>
<flatten>false</flatten>
<baseDirectory>$(PublishDir)</baseDirectory>
<dynamicValues>
<replacementValue property="name">
<format>C:\Deploy\Builds\PortalBuild{0}.zip</format>
<parameters>
<namedValue name="$CCNetLabel" value="Default" />
</parameters>
</replacementValue>
</dynamicValues>
<files>
<file>*.*</file>
<file>**\*</file>
</files>
</package>
<email from="bla" mailhost="bla" port="25" userName="bla"
password="bla" includeDetails="TRUE" useSSL="FALSE">
<users>
<user name="User1" group="Portal" address=""/>
</users>
<groups>
<group name="Portal">
<notifications>
<notificationType>change</notificationType>
</notifications>
</group>
</groups>
</email>
</publishers>
</project>
The first error message is probably caused by CCNET service not running because of which the web dashboard can't connect to it. It should go away as soon as you fix the ccnet.config so that service starts running.
The second problem ("Ilegal characters in path"; you seem to have already figured out the missing nodes part) is caused by msbuild/executable element. It seems that CC.NET doesn't like whitespace and especially new line characters inside it's value. Replacing:
<executable>
C:\WINDOWS\microsoft.net\Framework64\v3.5\MSBuild.exe
</executable>
with:
<executable>C:\WINDOWS\microsoft.net\Framework64\v3.5\MSBuild.exe</executable>
should fix the problem.
Another hint: when you're having problems with the validity of your ccnet.config file, try using CCValidator.exe (it's in your CruiseControl.NET\server folder). It usually points out the problematic part of the config file quite nicely (although that wasn't the case with "Illegal characters in path" problem - I had to comment out specific parts of the config to find the offending node).
The first message you receive (connection actively refused) makes me think of a firewall which is blocking the port you're using.
The second problem could be anything. It could for instance be an error in your XML configuration (ccnet.config) file. Can you find any pointers in the Windows Eventlog ?
Regarding the 2nd problem: did you try to run the CC.NET server from the command line?
If you've got an error in your XML configuration, this will give you a more meaningful error message.
Which account are you using to run the Windows service?
Have you checked your ccnet's dashboard.config file?
It has the following line in it:
<server name="local" url="tcp://localhost:21234/CruiseManager.rem" ... />
Try changing the port on that to 82 and then restarting the website (you should be just able to add a space to the web.config file and save and IIS will restart the website).
Sounds like you're confusing two different functions:
tcp://localhost:21234
This is the default remoting port for clients like CCTray. This is not used for the IIS web site (dashboard).
Configuration document is likely missing Xml nodes required for properly populating CruiseControl co nfiguration. Missing Xml node (packageList) for required member (ThoughtWorks.CruiseControl.Core.Publishers.Package Publisher.PackageList)
Your example config is missing required packageList node.
A misleading error message. The port really is 21234, not 82. I got the same errors. The fix was to start ccnet.exe from the desktop shortcut to discover that the real problem was illegal code in my ccnet.config file.
After fixing the ccnet.config file, the problem moved on. When attempting to build, the system would not let the subversion client modify the read-only marker files in the checked out repo.
In my case I misprinted project configuration file name in ccnet.config instead of timescheduler.config it were timesheduler. When I fixed file name I was able to run ccnet service.
<cruisecontrol xmlns:cb="urn:ccnet.config.builder">
<cb:include href="definitions.xml" xmlns:cb="urn:ccnet.config.builder"/>
<cb:include href="projects/timescheduler.config" xmlns:cb="urn:ccnet.config.builder"/>
</cruisecontrol>
I have a windows service that uses log4net. We noticed that the service in question was running painfully slow so we attached a debugger to it and stepped through. It appears that each time it tries to write an entry to the log via log4net that it takes anywhere from 10 to 30 seconds before the next line of code can execute. Obviously this adds up...
The service is 2.0 .net
We're using log4Net 1.2.0.30714.
We've tested this on a machine running vista and a machine running win sever 2003 and have seen the same or similar results.
Jeff mentioned a performance problem with Log4Net in Podcast 20. It's possible that you are seeing a similar issue.
It turned out that someone had added an SMPTAppender in a config file which was overriding the one in our app. As a result the errant SMPT server address was unreachable. log4net was trying to log the error for a minute per request and then giving up and going on to the next line of code. Correcting the smtp address fixed the problem.
I have log4net with adonet appender and have not seen any decremental performance of my windows service. what appender are you using?
Check your config file for Log4Net settings. Log4Net can be configured to log to a remote machine, and if the connection is slow, so will be your logging speed.
Well I'm not remoting... this is writing to the log file on the machine it's running on. Here's my appender settings:
<appender name="RollingFileAppender" type="log4net.Appender.RollingFileAppender,log4net">
<file value="D:\\ROPLogFiles\\FileProcessor.txt" />
<appendToFile value="true" />
<datePattern value="yyyyMMdd" />
<rollingStyle value="Date" />
<layout type="log4net.Layout.PatternLayout,log4net">
<param name="ConversionPattern" value="%d [%t] %-5p %c [%x] - %m%n" />
</layout>
<threshold value="INFO" />
</appender>
the default maximum file size is 10mb . if your files are about this size and your file systems is quite full and probably heavily fragmented, it may be possible that the problem lies there. how big are your log files? i encountered similar problems with logfiles at gigabyte size.