I am trying to connect jenkins slave to the master.
We are allowed to have only one port (say 8888) open from the corporate firewall to talk to the master hosted on AWS. The port is being used for connecting to the jnlp process running on the master jenkins machine. Due to this reason we cannot download the slave-agent.jnlp file using http. I have manually downloaded the slave-agent.jnlp file and I am trying to give the following command to start the agent up.
java -jar slave.jar -jnlpUrl file:///oracle/app/jenkins/slave-agent.jnlp -secret 7f079707d5632d2db2501be73f1a6f5f6422b9c9fde806afd8fdd2000d5db123
I get the the following error
Failing to obtain file:/oracle/app/jenkins/slave-agent.jnlp?encrypt=true
java.io.IOException: file:/oracle/app/jenkins/slave-agent.jnlp?encrypt=true doesn't look like a JNLP file; content type was null
at hudson.remoting.Launcher.parseJnlpArguments(Launcher.java:301)
at hudson.remoting.Launcher.run(Launcher.java:218)
at hudson.remoting.Launcher.main(Launcher.java:192)
Waiting 10 seconds before retry
I have tried this as well without any luck.
java -jar slave.jar -jnlpUrl file://localhost/oracle/app/jenkins/slave-agent.jnlp -secret 7f079707d5632d2db2501be73f1a6f5f6422b9c9fde806afd8fdd2000d5db123
The file is present at the location has read write permissions.
Any clue on why the java process is not able to read that file?
Answer by #gareth_bowles is wrong at least today, the url will work as a file url as well. Don't know if this was changed at some point.
For our windows slave it is "file:/D:/jenkins-slave/slave-agent.jnlp", which works.
The jnlpUrl parameter needs to be an http or https link to your Jenkins master, e.g. http://jenkins.yourco.com/computer/slavename/slave-agent.jnlp -it won't work as a file URL.
Related
I am trying to install the slave on Windows from a linux master. When using the Java Web Start, I get an error that it can't load the resource http://jenkinsserver:8080/jenkins/jnlpJars/remoting.jar
This is because the jenkins server is using 8443. Is there a way to tell it to use the correct port?
When I try from command line:
java -jar slave.jar -jnlpUrl http://jenkinsserver:8443/jenkins/computer/Slave-it-jenkins-p2/slave-agent.jnlp -secret xxxx
I get a message that it is unable to access the jarfile slave.jar Is it possible to use Jenkins on https and install slaves?
Yes it is possible to execute the same over https , if you dont have the proper certificate then you can either download them from browser or you can also pass the argument --noCertifcateCheck to ignore the cert.
For the above issue via http can you please provide the detailed error stack that will help
First, you can configure your Jenkins port at Configure Jenkins menu http://your-jenkins-server/configure/. Check out the JENKINS URL at Jenkins Location
I had no problem configurating my Windows Slave using JNLP + service start. Just make sure that your JNLP port is set and open. You can set that port # Jenkins Global Security http://your-jenkins-server/configureSecurity/
I used the Jenkins documentation Installing Jenkins as Service in Windows Slaves as a guide.
I installed postgreSQL binaries in windows 7 32bit operating system; I can start the server from cmd but I cant run it as a windows service.
This is the error that I'm getting when I try to start the service manually:
"The postgreSQL service on local computer started and then stopped. some services stop automatically if they are not in use by other servces or programs"
All I need to do is; after booting to windows when I double clicked my java application I need to run my app smoothly without any database errors. I cannot do this because postgreSQL is not running as a windows service.
I found this in windows event viewer:
The description for Event ID 0 from source PostgreSQL cannot be found.
Either the component that raises this event is not installed on your local computer or the installation is corrupted.
You can install or repair the component on the local computer.
If the event originated on another computer, the display information had to be saved with the event.
The following information was included with the event:
postgres cannot access the server configuration file
"C:/Windows/system32/pgsql/data/postgresql.conf": No such file or directory
I googled about it but I was not able to find an answer.
Problem was solved
path to the data directory was wrong in windows service file.
So I delete the service file from this method:
1)Run Regedit or Regedt32.
2)Go to the registry entry "HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/Services"
3)Look for the postgreSQL service that you want delete and delete it.
4)reboot the computer.
After that open the cmd (Run as administrator) Go to the postgreSQL bin directory and run this command to create a new windows service:
pg_ctl.exe register -N "PostgreSQL" -U "NT AUTHORITY\NetworkService" -D "C:/Program Files/postgresql/pgsql/bin/pgsql/data" -w
This worked for me. Hope this will help.
This is a note for a normal user. If using an official installer it should has a build-in service,
Win+R and type services.msc
Search Postgres service based on the version installed,
e.g., "postgresql-x64-13 - PostgreSQL Server 13"
Click stop, start, or restart the service option
postgres cannot access the server configuration file
"C:/Windows/system32/pgsql/data/postgresql.conf": No such file or
directory
This looks like your working directory is C:\Windows\system32 and you are running postgres there and it looks for data/postgresql.conf.
Try changing the working directory or specifying -D C:\path\to\my\data.
I've installed a GlassFish Server instance into Netbeans, and I'm trying to install its update center. I have run Netbeans as an Administrator under Windows 7.
I'm on a fast internet connection, pkg.oracle.com seems to load rather fast from the browser. Still, I am keeping on getting this error:
C:\Program Files\glassfish-4.0>"C:\Program Files\Java\jdk1.6.0_45\bin\java" -Dimage.path="C:\Program Files\glassfish-4.0\bin\\.." -jar "C:\Program Files\glassfish-4.0\bin\\..\pkg/lib/pkg-bootstrap.jar" "C:\Users\velosyp\AppData\Local\Temp\pkg-bootstrap1368.props"
Proxy: Using system proxy settings.
Install image: C:\Program Files\glassfish-4.0
Installing pkg packages.
Downloading 2 packages.
Downloading pkg (514 files, 6 463 109 bytes).
Downloading python2.4-minimal (278 files, 3 828 949 bytes).
Executing 906 install actions.
Installing updatetool packages.
Downloading 2 packages.
Downloading updatetool (564 files, 4 632 599 bytes).
Input/output error: Read timed out
Could not download application packages. This could be because:
- a proxy server is needed to access the internet. Please ensure that
the system proxy server settings in your Internet Options control panel
(under Connections:LAN Settings) are correct, or set the HTTP_PROXY
environment variable to the full URL of the proxy server.
- the package server or network connection is slow.
If you are getting time out errors you can try setting the
PKG_CLIENT_CONNECT_TIMEOUT and PKG_CLIENT_READ_TIMEOUT
environment variables and try again. For example to increase
the timeouts to 300 seconds set them to 300
- the package server is down or otherwise inaccessible or it is
generating invalid data. Please contact the provider of the package
server.
What could be wrong?
This may be a problem with the slow GlassFish update server. Here are some steps you can try:
You should retry first to see if the error occurs again. You can start a cmd, navigate to the \glassfish\bin directory and run updatetool.bat so you can see the output which is printed after the one you posted.
If you are behind a proxy you should make sure it is setup correctly in the system settings.
You can also try to install the updates through the GlassFish admin console. Start your GlassFish instance and navigate to http:\localhost:4848. On the bottom of the left menu click on Updatetool. There you can choose and install the desired updates.
Another option is to change the timeouts of the pkg tool. To set the timeout to 300 seconds do the following in a cmd (on Windows):
set PKG_CLIENT_CONNECT_TIMEOUT=300
set PKG_CLIENT_READ_TIMEOUT=300
You last (ok, there may be other ones) option is to just skip the update process and do the tutorial with the current version. It should work anyway and I can see in my GlassFish update center that there is only an update for the tutorial documentation at the moment.
and
check this
Try pkg first, then pkg install updatetool.
Another option is to bootstrap the (smaller) pkg command first, and then use the pkg command to install updatetool (instead of bootstrapping updatetool). For example:
pkg list
Answer 'y' to bootstrap the pkg command. Then:
pkg install updatetool
to install updatetool using the pkg command.
I'm currently trying to implement mounting of hdfs to a local directory on ubuntu machine. I'm using hadoop-fuse-dfs package.
So, I'm executing this below command
ubuntu#dev:~$ hadoop-fuse-dfs dfs://localhost:8020 /mnt/hdfs
Output
INFO
/var/lib/jenkins/workspace/generic-package-ubuntu64-12-04/CDH4.5.0-Packaging-Hadoop-2013-11-20_14-31-53/hadoop-2.0.0+1518-1.cdh4.5.0.p0.24~precise/src/hadoop-hdfs-project/hadoop-hdfs/src/main/native/fuse-dfs/fuse_options.c:164
Adding FUSE arg /mnt/hdfs
But, when I try to access the mounted hdfs locally, I see the error message (please check the snapshot attached)
ls: cannot access /mnt/hdfs: No such file or directory
total 4.0K
d????????? ? ? ? ? ? hdfs
PS : I've already executed following commands, but still I get same output.
$ sudo adduser ubuntu fuse
$ sudo addgroup ubuntu fuse
Am I missing something ? Please suggest some workaround.
You need to use hostname instead of localhost. I faced the same issue, after changing localhost to hostname which is also defined in hosts file, it got fixed.
hadoop-fuse-dfs dfs://{hostname}:8020 /mnt/hdfs
According to Cloudera
In an HA deployment, use the HDFS nameservice instead of the NameNode URI; that is, use the value of dfs.nameservices in hdfs-site.xml.
This happens at least when hadoop-fuse-dfs can not connect to filesystem metadata operations running by default on port 8020 e.g. due to network configuration issues.
You can test from your host that connection works prior running hadoop-fuse-dfs e.g. by
telnet your-name-node 8020
GET /
I have a problem with starting Jetty via the startup command /etc/init.d/jetty. When I execute the command the following output is generated:
/etc/init.d/jetty start
Starting Jetty servlet engine.:
Jetty Rotate logs
Jetty servlet engine started, reachable on http://jagadguru:80/.: jetty.
It does start successfully when I type java -jar start.jar in my Jetty directory.
Can anyone help me with this?
This is likely a file permission issue. Even if you are running the start script with sudo, the script defines a jetty user (default is jetty). I had an issue similar to this where my permissions on /tmp prevented jetty from creating a file there. I adjusted the permissions on /tmp and all is well! The jetty user also needs permissions on the jetty folder of course.
Also, for checking if Jetty is finding java correctly, run sudo service jetty check
It's probably an issue due to wrong permissions on some work or log folder. I assume the start script tries to change the user and therefore doesn't has the same permissions as the one you use when running Jetty via "java -jar".
Another possibility is that you don't have JAVA_HOME set and the start script doesn't find your java bin.
Please attach some kind of log file as it is really hard to say more without more detailed information.
As answered here, the default configuration for Jetty in /etc/default/jetty only allows connections from localhost, you need to set JETTY_HOST to 0.0.0.0 to allow Jetty to accept connections from any host.
Add the following line to /etc/default/jetty:
JETTY_HOST 0.0.0.0