https://wiki.eclipse.org/OM2M/one/Advanced_DB
I am developing an IoT project based on Eclipse OM2M project. I've been trying to do the same thing as the tutorial above did in the "Run H2 in another mode" part. In the tutorial, it said that the default database(h2) was running in embedded mode. My goal was to run the h2 database in server mode as the tutorial above did.
In h2 database part:
I started a TCP server using command
java -jar h2-1.4.196.jar -webAllowOthers -tcpAllowOthers
and it showed that the TCP server is running at tcp://127.0.1.1:41903
(The port may change every time I started a new TCP server). After I successfully started the server, I tested the connection using the web console of h2 so I think my h2 server was started correctly.
In OM2M part:
I modified some configurations in the config.ini file as below:
org.eclipse.om2m.dbUrl=jdbc:h2:tcp://127.0.1.1:41903/~/indb (set
database url) org.eclipse.om2m.dbUser=sa (set database user)
org.eclipse.om2m.dbPassword= (no database password)
However, when I ran sh start.sh in cmd to start the CSE, there were always errors shown in the picture below:
Since there's only a few information in the tutorial, I don't really know if I configure the file wrong. It seems like OM2M was not able to find my h2 database.
Can anyone tell me where I did it wrong?
Related
This is my first time on here. I am having an issue deploying a java application I made on myEclipse. I am using Filezilla to host my Wildfly 9.0.2 test server. I exported my project to a .war file and upon dragging it into the test server I am met with a deployment.failed. Upon viewing the file in Notepad it declares "Services with missing/unavailable dependencies". one such error can be seen below:
[ "jboss.naming.context.java.module.myproject.myproject.env.common.jdbc.database_connection is missing [jboss.naming.context.java.database.connection] "
There are five of these similar errors and all point to a diffferent database connection of some type that I am not using within my project. I understand the issue but I do not know where these dependencies are declared and how I can go about removing them.
Any help will be greatly appreciated.
Kind Regards,
Paul
Creating the WAR file will use the project's deployment assembly (assuming you're using MyEclipse 2013 or later). Right click on the project and select Properties. Then go to the MyEclipse/Deployment Assembly page. This will have all of the files that are added to the deployment (or to the WAR file).
However, the message seems to suggest that a project is using a database connection which can't be found when running on the server. A first thought was that you're using the inbuilt Derby database but don't have that running when you run on Wildfly.But you say that you're not using a database. Also, I'm not familiar with how Filezilla can host a J2EE server - I thought Filezilla was an FTP client and server solution. Perhaps you could give more details, if this answer doesn't help.
I have written a VB.Net application that uses an SQL Express DB file containing a single table and a handful of stored procedures.
I have successfully built and exported the application to my VPS.
The problem comes when knowing what to do concerning the database file, there is a wealth of stuff online but not specifically to suit my needs.
I plan to use LocalDB on the VPS but being commandline - it is hard to know if the scripts that I have run have been successful after creating an instance , starting it... etc,
I want to keep installation requirements to an absolute minimum on my VPS machine and (in time other end users machines)... hence using LocalDB and not SQL Express
So, what do I have to do on the VPS to enable my application to connect to the database.. ? This was simple when it was Access - (supply the MDB file and run the AccessDatabaseEngine(redistributable) - job done)
The connection on my devt. machine runs as expected.
The connection string in my code is:
Const strSQLConnection As String = "Data Source= (localdb)\v11.0;Database=SoccerTrader;Trusted_Connection=True"
Can anyone help please.. this is driving me around the bend.. surely it cant be that difficult..?
===========================
I have found the following in an MSDN blog which says:
Database as a File: LocalDB connection strings support AttachDbFileName property that allows attaching a database file during the connection process. This lets developers work directly with databases instead of the database server. Assuming a database file (*.MDF file with the corresponding *.LDF file) is stored at “C:\MyData\Database1.mdf” the developer can start working with it by simply using the following connection string: “Data Source=(localdb)\v11.0;Integrated Security=true;AttachDbFileName=C:\MyData\Database1.mdf”.
================ ADDED 12th June =====================
OK, this is really bugging me now... I have read around this till it is coming out of my ears and nothing specifically seems to target what I am trying to do. All the blogs I read refer to installing / running SQL Server and changing permissions etc.
As I have mentioned I am using a VPS and propose to use LocalDB on the VPS to access a simple/small database file for a VB.Net application I am writing.
This is the story so far.
1) I have built a working prototype on my development PC and connected using SQL Express to a database file SoccerTrader.mdf - no problem.
In the Visual Studio Project properties I have added a requirement to the project that checks for SQL Server ..and if it is missing, installs it...
2) I install the project on the VPS and as expected SQL Server 2012 LocalDB is installed .... see here..
3) I have copied the SoccerTrader.MDF and SoccerTrader.LDF files into "C:\BESTBETSoftware\SoccerBot" on the VPS
4) for practical reasons given the problems I am having getting this to work, I have implemented an inputbox for me to specify the connection string when the application runs.... the connection strings I have used give the following...
1]: http://i.stack.imgur.com/i2tro.png
I have not changed any file permissions on the development PC and the database state is NOT read only....
So, the question is where do I go from here...? What have I missed.. why is it not working..?
I have managed to sort the problem.
Seemingly, the connection string I was using was OK. It was my error handling that wasnt 'clean' enough. It transpired the connection was being made on my VPS but when the application attempted to update the table , the directory I had created and put the MDF file into, would not permit write access.
I moved the MDF into the C:\Users\Public\Documents folder and all works as it should.
You have to specify the full path of the Db file with folder name/ip-address
Hello I m trying to configure Identity Server and API manager .
using the official
Tutorial here
Here it is mentioned that "Make the following change in the IS_HOME/repository/conf/api-manager.xml file. Change the under the section so that it points to the API Manager server".
but Their is no api-Manager.xml exist in above mentioned directory or in any other of identity Server.
Still i made changes in api-manager.xml of Wso2 API Manager.
But running The following Command to start the server : PRODUCT_HOME/bin/wso2server.sh -Dsetup
i m getting Windows Popup Stating , Windows can't open the file Wso2server.sh to open this file choose the program below .
Please correct me where i m doing wrong.
If you are running on windows try running wso2server.bat instead of wso2server.sh.
Joe
You still need to copy the api-manager.xml across from the API Manager VM to the Identity Server. the changes need to be made to api-manager.xml in both servers.
Also when starting the server in unix, make sure you have environment variables set, JAVA_HOME and CARBON_HOME.
sorry im rather new to linux ubuntu. i have an application that i made that runs with tomcat and connects to an h2 database. it all works fine on my windows laptop. im now moving it onto my linux computer to run all the time. but im having trouble with starting the database. i have downloaded h2 from their website. and its sitting on my desktop.
the question is. how to start the database.
and is their any other commands i need to know to run and operate it.
thankyous
The H2 database supports different modes:
You can use H2 in embedded mode using a database URL of the form jdbc:h2:~/test. This is the easiest case. In that case the database is running within the same process as your application is running, and you don't have to start a separate process just for the database.
You can use H2 in server mode. In that case you need to start a separate server process. But for your case it doesn't sound like you need this, right?
H2 also supports mixed mode (half embedded / half server), and the automatic mixed mode.
For details, see the H2 documentation about Connection Modes.
Is this what you are looking for?
https://groups.google.com/forum/?fromgroups=#!topic/h2-database/r-qRnskN0eQ
Open terminal in bin directory of h2 database and write these commands...
chmod +x h2.sh
./h2.sh
Click here for more information (similar thread)...
What is the simplest way to schedule a batch file to run on a remote machine using Hudson (latest and greatest version)? I was exploring the master slave setup. I created a dumb slave but I am not sure what the parameters should be so that I can trigger the batch file in the remote slave machine.
Basically, I am trying to run 2 different batch files on two different remote machines sequentially, triggered from my machine (the master). The Step by step guide on the Hudson website is a dead link. There are similar questions posted on SO but it does not quite work for me when I use the parameters they mention.
If anyone has done something similar please suggest ways to make this work.
(I know how to set up jobs, and add a step to run a batch file etc what I am having trouble configuring is doing this on a remote machine using hudson in built features)
UPDATE
Thank you all for the suggestions. Quick update on this:
What I wanted to get done is partially working, below are the steps followed to get to it -
Created new Node from Manage Nodes -> New Node -> set # of Executors as 1, Remote FS root set as '/var/hudson', set Launch method as using JNLP, set slavename and saved.
Once slave was set up (from master machine), I logged into the Slave physical machine, I downloaded the _slave.jar from http://masterserver:port/jnlpJars/slave.jar, and ran the following from command line at the download location -> java -jar _slave.jar -jnlpUrl http://masterserver:port/computer/slavename/slave-agent.jnlp. The connection was made successfully.
Checked 'Restrict where this project can be run' in the Master job configuration, and set paramater as slavename.
Checked "Add Build Step" for adding my batch job script
What I am still missing now is a way to connect to 2 slaves from one job in sequence, is that possible?
It is fairly easy and straight forward. Lets assume you already have a slave running. Then you configure the job as if you are locally on the target box. The setting for Restrict where this project can be run needs to be the node that you want to on. This is all for the job configuration.
For the slave configuration read the following pages.
Installing Hudson as a Windows service
Distributed builds
On windows I prefer to run the slave as a service and let the remote machine manage the start up and shut down of the slave. The only disadvantage with this is, you need to upgrade the client every time you update the server Just get the new client.jar from the server, after the upgrade and put it on the slave. Then restart the slave and you are done.
I had troubles using the install as a service option for the slave even though I did it as a local administrator. I used then srvany to wrap the jar into a service. Here is a blog about it. The command that you need to wrap, you will get from your Hudson server from the slave page. For all of this to work, you should set up the slave management as jnlp.
If you have an ssh server on your target machine, you can use the ssl slave settings. These work for me like a charm. I use them with my unix slaves. So far the ssl option with unix is less of an hassle, than the windows service clients.
I had some similar trouble with slave setup and wrote up this blog post - I was running on Linux rather than Windows, but hopefully this will help.
I dont know about how to use built-in hudson features for this job - but in one of my project builds, i run a batch file that in turn uses PSTools
to run the job on a remote server. I found PS tools extremely easy to use - download, unpack and run the command with the right parameters, hence opted to use this.