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Error connecting to database: (using class org.gjt.mm.mysql.Driver)

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问题 I am trying to set up a connection in Pentaho 5.3.0.0-213 to mysql on localhost. I am using a Mac running OS 10.10.2. I can connect to the DB using Sequel Pro and have read through all the answers already given on this site (and others!) and have downloaded and copied mysql-connector-java-5.1.34-bin.jar to data-integration/lib and still get the same error. Any suggestions would be welcome. The whole error message is as follows: Error connecting to database [localhost_con] : org.pentaho.di

Pentaho Data Integration Import large dataset from DB

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问题 I'm trying to import a large set of data from one DB to another (MSSQL to MySQL). The transformation does this: gets a subset of data, check if it's an update or an insert by checking hash, map the data and insert it into MySQL DB with an API call. The subset part for the moment is strictly manual, is there a way to set Pentaho to do it for me, kind of iteration. The query I'm using to get the subset is select t1.* from ( select *, ROW_NUMBER() as RowNum over (order by id) from mytable ) t1

What is this Maven error ? “Plugin execution not covered by lifecycle configuration…)”

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问题 "Plugin execution not covered by lifecycle configuration: com.soebes.maven.plugins:iterator-maven-plugin: 0.4:iterator (execution: javascript-dependencies_unpack-dependencies, phase: initialize)" Trying to build Pentaho projects at https://github.com/pentaho. None of them will build except maven-parent-poms at https://github.com/pentaho/maven-parent-poms. Almost every other project throws this error in the corresponding .pom file. Refer to the screen snip, below, for the location of the error

What is this Maven error ? “Plugin execution not covered by lifecycle configuration…)”

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What is this Maven error ? “Plugin execution not covered by lifecycle configuration…)”

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Pentaho BI - MongoDB input Aggregation error due to recent MongoDB upgrade to 3.6

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问题 Due to recent Mogodb upgrade to 3.6, pentaho kettle mongoinput step aggregation not be able to fetch data from the Mongodb. The error message: com.mongodb.MongoCommandException: Command failed with error 9: 'The 'cursor' option is required, except for aggregate with the explain argument' on server localhost:2915. The full response is { "ok" : 0.0, "errmsg" : "The 'cursor' option is required, except for aggregate with the explain argument", "code" : 9, "codeName" : "FailedToParse" } It seems

【原创】大数据基础之ETL vs ELT or DataWarehouse vs DataLake

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ETL ETL is an abbreviation of Extract, Transform and Load. In this process, an ETL tool extracts the data from different RDBMS source systems then transforms the data like applying calculations, concatenations, etc. and then load the data into the Data Warehouse system. In ETL data is flows from the source to the target. In ETL process transformation engine takes care of any data changes. ELT ELT is a different method of looking at the tool approach to data movement. Instead of transforming the data before it's written, ELT lets the target system to do the transformation. The data first copied

Pentaho kettle - get all combination of words

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问题 How can I get all possible combination of words through pentaho kettle. Is there a step that does this? For example - if I have 3 word Apple , Banana , Orange I need all unique combinations of those words I.e. comb1 = Apple ; Comb2 = Banana ; Comb3 = Orange ; Comb4 = Apple + Banana ; Comb5 = Apple + Orange ; Comb6 = Banana + Orange ; Comb7 = Banana + Apple ; Comb8 = Orange + Apple ; Comb9 = Orange + Banana ; Comb10 = Apple + Banana + Orange ; Comb11 = Apple + Orange + Banana ; Comb12 = Banana

lookup_Pentaho data Integration

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问题 I have two files (App.csv and Acess.csv) App.csv has one column called Application Application App-A App-B Access.csv contains 3 columns (Application, entitlement, userid) Application, entitlement, userid App-A,ent-A,user1 App-A,ent-B,user1 App-B,ent-c,user2 App-B,ent-d,user1 App-C,ent-c,user2 App-C,ent-d,user1 I need extract all the App-A and App-B details if it matches Application file column and output should like be below App-A,ent-A,user1 App-A,ent-B,user1 App-B,ent-c,user2 App-B,ent-d

Kettle / Pentaho Data Integration - unable to create a Database Connection (XulException: java.lang.reflect.InvocationTargetException)

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问题 Having finally got kettle to start and not hang, I still cannot use it to much avail, as when I try to create a new Database Connection (after creating a new Transformation) I get this error: org.pentaho.ui.xul.XulException: java.lang.reflect.InvocationTargetException Thereafter, I get this more general error for the same actions: General error in dialog In order to get the first 'java...TargetException' again, I have to close and restart kettle. Note, this also happens when I load an