I just started using carrot2 directly today (I have previous experience using it as part of #note2).
I am able to search the web and Wikipedia through either http://search.carrot2.org or the workbench application.
When searching the pubmed source, I get the following errors:
java.net.SocketTimeoutException: Read timed out
org.apache.http.conn.ConnectTimeoutException: Connect to eutils.ncbi.nlm.nih.gov/eutils.ncbi.nlm.nih.gov/130.14.29.110 timed out
Could they be transient or version dependent? Is anyone else successfully searching and clustering pubmed records with carrot2?
Based on input from Dawid Weiss and Jack Park at http://sourceforge.net/p/carrot2/mailman/message/33066121/
NCBI puts various limitations on pubmed queries through http://eutils.ncbi.nlm.nih.gov/entrez/eutils/
They include time-of-day and per-IP limitations. See http://www.ncbi.nlm.nih.gov/books/NBK25497/
Related
I am attempting to connect my R instance to my company's Oracle database. I had issues installing ROracle due to being on version 3.3.6 of R, so I settled on RJDBC instead. I downloaded the JDBC driver in a jar file. And stored this as my jdbcDriver object. See below.
jdbcDriver =JDBC("oracle.jdbc.OracleDriver",classPath="C:/Users/user1/Downloads/ojdbc6.jar",identifier.quote="`")
I then attempted to make my connection to the database using some code I found online with dbConnect:
jdbcConnection =dbConnect(jdbcDriver, "jdbc:oracle:thin:#//HOSTNAME:Port/sid", "username","password")
I don't clearly understand what the second parameter in dbConnect is even after much reading online. I think I have some sort of syntax issue here-- I am confident that the Host Name, Port, SID, user name, and password are correct, though.
After much tweaking of the second parameter, including getting rid of the ".com" that was previously in it, I got the following error:
Error in .jcall(drv#jdrv, "Ljava/sql/Connection;", "connect", as.character(url)[1], :
java.sql.SQLException: Listener refused the connection with the following error:
ORA-12514, TNS:listener does not currently know of service requested in connect descriptor
I've done a tone of reading online and I think that maybe I should use something different because I have an SID, not a Service Name?
I also am having trouble where the error first occurs? Is it the first line of the error code that I should be focusing on before I even look at the third?
I am thoroughly spun around the topic and would appreciate any insights. My end goal is really just to query Oracle through R.
Thanks!
We are using Oracle cloud CRM. Our organization has been using it since quite few years and the people who set it up have already left. I am new here and am trying to connect the CRM data to Power BI. I intalled the ODAC drivers and everything. However, I do not know what to enter in my tnsnames.ora file. That file has asked for service name, server name and hostID/name. No one in the organization has this information. I reached out to Oracle support and here is the response they gave:
Oracle’s response to the service request: “These details are not found in Documentation because they cannot be provided. You'll need to reach out to Power BI support to see if there are alternate ways to create this integration without these details.”
Does anyone know why Oracle would not share these details with us? If there is any other way to find out the server and service name? How should I proceed in such scenarios.
As of now, we use a link to login to the service and we do not have much documentation
Let me attempt to translate.
We are using Oracle cloud CRM
Oracle is hosting our application.
I am new here and am trying to connect the CRM data to Power BI
We want to query the database being used to store our application data.
Oracle’s response to the service request: “These details are not found in Documentation because they cannot be provided..."
This is where it gets fun, they are saying - we do not give clients direct access to the database where their data is hosted. So in other words, you CANNOT connect your tool directly to the database.
So, I think you're best bet, is to look into REST APIs that have been published for you as a subscriber to the service. This is often provided in lieu of providing direct access to your hosted environment.
Your other bet is to contact someone in your organisation that has the oracle connections in a file which you could load SQL Developer by Oracle, and explore the connections there. Most likely this will be a data engineer or IT contact in your organisation who will have this information. Once you have the connection info visible, you can then enter this directly in Power BI after creating an Oracle connection.
We are looking to access BigQuery through third party sql clients, ex. RazorSql. I came across StarSchema JDBC driver and I could not make it work with Razorsql and on the webpage it says that the project was archived. So, not sure if its supposed to work. Any suggestions?
The error I get when trying to use it with RazoeSql is:
java.io.IOException: toDerInputStream rejects tag type 123
I am using a service account key file for authentication.
This is JDBC url value I use (where "my-poc" is the project id and "MY_POC" is the dataset name):
jdbc:BQDriver:my-poc%3AMY_POC?withServiceAccount=true
Alas, no there isn't a JDBC driver that is officially supported. There is an ODBC driver developed by Simba in conjunction with google (you can download it here for free), and you can use a JDBC to ODBC bridge (although the official one is deprecated in java 8, I believe you can download one from a couple of different folks (here, for example).
Admittedly, this is not a great solution. IMO Google really should provide a JDBC driver, but they do not.
java.io.IOException: toDerInputStream rejects tag type 123
The JDBC driver requires a p12 formatted file instead of the json formatted file.
I am using Jaspersoft iReport Designer 5.0.0 and bqjdbc-0.1.jar (a BigQuery JDBC Driver) and I want to associate a query to a new report.
I currently have some problems when creating a new report with a query that has the keywords 'count' or 'as'. If I don't put these keywords my query works correctly.
What I find strange is that my problematic query will work if I select "Execute Command..." from my database connection in the Services window.
I also had the same problem with Jasper 4.8. I am not sure if the problem is with the BigQuery driver or with Jasper.
The error that I get when I try to associate the query to a new report is the following:
Message:
net.sf.jasperreports.engine.JRException: General problem: null
Check username and password; is the DBMS active ?!
Level: SEVERE
Stack Trace:
General problem: null Check username and password; is the DBMS active ?!
com.jaspersoft.ireport.designer.data.fieldsproviders.SQLFieldsProvider.getFields(SQLFieldsProvider.java:172)
com.jaspersoft.ireport.designer.connection.JDBCConnection.readFields(JDBCConnection.java:472)
com.jaspersoft.ireport.designer.wizards.ConnectionSelectionWizardPanel.validate(ConnectionSelectionWi zardPanel.java:146)
org.openide.WizardDescriptor$7.run(WizardDescriptor.java:1357)
org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:572)
org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:997)
This is interesting, could you give us an example of your query?
For me it seems that iReport wants to read something that isn't there.
The bigger problem is, that our logger doesn't really likes the iReport, but if you could check your log that would be a big help for us. For more information about the logging:
http://code.google.com/p/starschema-bigquery-jdbc/wiki/Logger
In the current 0.1 version we don't do anything with the query, just pass it to BigQuery. So if your query runs fine on the BigQuery Browser Tool, it should run fine with the Driver too.
Also, we don't really check stackoverflow, so please post your problems here, since we can answer your questions faster, over there:
http://code.google.com/p/starschema-bigquery-jdbc/issues/entry
I'm trying to move snapshots of data from our MongoDB into our Oracle BI data store.
From the BI team I've been asked to make the data available for ODI, but I haven't been able to find an example of that being done.
Is it possible and what do I need to implement it?
If there is a more generic way of getting MongoDB data into Oracle then I'm happy to propose that as well.
Versions
MongoDB: 2.0.1
ODI: 11.1.1.5
Oracle: 11.2g
Edit:
This is something that will be queried once a day, maybe twice but at this stage the BI report granularity is daily
In ODI, under the Topology tab and Physical Architecture sub-tab, you can see all technologies that are supported out of the box. MongoDB is not one of them. There are also no Knowledge Modules available for importing/exporting from/to MongoDB.
ODI supports implementing your own technologies and your own Knowledge Modules.
This manual will get you started with developing your won Knowledge module, and in one of the other manuals i'm sure you can find an explanation on how to implement your own technologies. (Ctrl-F for "Data integrator")
If you're lucky, you might find someone else who has already implemented it. Your best places to look would be The Oracle Technology Network Forum, or a forum related to MongoDB.
Instead of creating a direct link, you could also take an easier workaround. Export the data from the MongoDB to a format that ODI supports, and MongoDB can extract to. CSV or XML maybe? Then load the data trough ODI into the oracle database. I think... that will be the best option, unless you have to do this frequently...
Look at the blog post below for an option;
https://blogs.oracle.com/dataintegration/entry/odi_mongodb_and_a_java
Cheers
David