Tags: ETL kettle pentaho hbase Kettle is an open-source ETL Tool written in Java. It can be run on Windows, Linux, and Unix. It does not need to be installed green, and data extraction is efficient and stable. Kettle is named a pot in Chinese. The project's main programmer Matt wants to put all kinds of data in a pot and then flow out in a specified format. Kettle is an ETL tool set that allows you to manage data from different databases. It provid
features they want. In addition, they are concerned about program quality and version control. Open-source software is developed based on communities, so it is updated frequently.
Other enterprises have similar experiences. They do not want to re-develop the Bi platform, but integrate mature platform products.
However, for many other ISVs, the price of open-source Bi is the biggest concern when they choose products. They would rather
Use a very cheap price, and then do some additional developme
need to run each record in the file list. In the advanced settings of the job, select "Execute for every input row" to implement cyclic calling.
In the http step, we need to set filename and url. After the two fields are entered, we use the variables $ {URL} and $ {FILENAME }, to make the data correspond to the variable relationship, we need to do two things.
1) You must declare the "URL" and "FILENAME" Naming parameters.
In job attribute settings, set in the named parameters tab.
2) Select t
dispatched a variety of scheduling tools, such as Apache Oozie, Azkaban, Pentaho, etc., and finally compared the various advantages and disadvantages of the attempt to choose Apache Nifi as an attempt, by consulting Nifi Processor API, The processor that can better support remote operation is executeprocess. The following will be a practical explanation of requirements.3.1 Processor Add and configure1. Click "Add Processor", select Executeprocess and
The advantages of Infobright are as follows:
(1) High compression ratio: high compression ratio is usually 10:1, some applications may reach 40:1, the higher the similarity of each column of data will have a higher compression ratio, and infobright is not indexed, save a lot of space.
(2) Optimized statistical algorithm: Rapid response to complex analysis of the query statement, it is no doubt that a 140 million rows of data group by out of the results of more than 5 million execution time is ab
, and many bi suites are compatible, such as Pentaho, Cognos, jaspersofReduce operation and maintenance cost; With the increasing of database, the performance of query and loading is stable, the implementation and management is simple and requires very little management; it is the first commercially supported open source warehousing Analysis database and the ORACLE/MYSQL is the official recommended warehousing integration architecture.Infobright Appli
Today encountered a very tangled problem, online find a bunch of information finally to be resolved, in the spirit of the programmer dedication is now the problem and the solution are written out.If you run Webapp,kettle under Eclipse, the initialization method will browse all the jar packages under/eclispe/plugins. This will cause our program to be slow and difficult to accept. The programmer can not tolerate, at this time we only need at runtime in the VM argument add the following-dkettle_plu
The next day I first came to the new company and asked me a question.
The DPI of the result image generated into the PDF is different from the resolution of the generated PDF.
I have never touched on DPI before. I don't know what it is. I can't help it. I can only use Baidu.
DPI: the abbreviation of "dot Per Inch" refers to the number of points in the length of each inch. In the Chinese version of Photoshop, we can see that the Chinese explanation is a representation of "resolution"-"pixe
represented as by 2P+ 1 IntegersQi Si, 1Si, 2...Si,PDi, 1Di, 2...Di,P, WhereQiSpecifies performance,Si,J-Input specification for PartJ,Di,K-Output specification for PartK.Constraints1 ≤P≤ 10, 1 ≤N≤ 50, 1 ≤Qi≤ 10000OutputOutput the maximum possible overall performance, thenM-Number of connections that must be made, thenMDescriptions of the connections. Each connection between machinesAAndBMust be described by three positive numbersA B W, WhereWIs the
), where 0 means that corresponding part must not be present, 1-the part is required, 2-presence of the part doesn' t matter.
Output specification describes the result of the operation, and is a setPNumbers 0 or 1, where 0 means that the part is absent, 1-the part is present.
The machines are connected by very fast production lines so that delivery time is negligibly small compared to production time.
After your years of operation the overall performance of the ACM computer factory became insuff
This is my work efficiency experience shared in the group at the end of last November. I would like to share with you the "quick" work experience here. I believe everyone should have had some troubles in productivity. This efficiency is accompanied by a long time of pain. Every time I reach the PDI, the leader must be more efficient? I think it is not a matter of self-determination. Leaders and customers must make the decisions. It is a tearful and lo
functions are dynamic web pages and interactive website creation.
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Kettle-engine.jar and log4j. jar package conflict problem solution, log4j. jar
Java to call kettle, reference the kettle-engine.jar in lib, log4j. jar package, test found that with the kettle-engine.jar package, log can not be written to the log file, but can print to the console; to the Internet to find many friends encountered similar problems, finally, I found the problem on the official website: http://jira.pentaho.com/browse/PDI-1791;
Solutio
present, 1-the part is required, 2-presence of the part doesn' t matter.
Output specification describes the result of the operation, and is a setPNumbers 0 or 1, where 0 means that the part is absent, 1-the part is present.
The machines are connected by very fast production lines so that delivery time is negligibly small compared to production time.
After your years of operation the overall performance of the ACM computer factory became insufficient for satisfying the growing contest needs
on PID control. Special attention to my introduction of the time, the order is PDI, the intention is to recommend the adjustment of the time, you can first back to adjust P, D these two constants (I return 0), feel the system is stable, satisfied, and then the "Stability error" to adjust the I-integral control constants.Modifying the Mass and heat of the subject, you can observe the influence of the thermal system on the PID control. Modify the therm
The following two articles explain how to use $ and? In kettle, what do we do when we can't meet our needs?Dynamic SQL Queries in PDI a.k.a. KettleImplementing dynamic SQL queries in kettleOnly support single placeholder, if you want to have more than one parameter to pass, we want to use the toolI'm using the first one, the internal structure is as followsSee, when using the Multiway Merge join must remember to use the previous sort control, here als
This is the end of last November in the group shared the efficiency of the experience, here also to share with you the work "fast" feeling haha. I believe that we should all have a little bit of work efficiency problems. And this efficiency ah with me for a long time of pain. Often to PDI when the leadership will raise efficiency has wood? Since think fast is not counted, must lead and the client side of the rule, for the school recruit came in the do
, why are you so sure it is caused by the process of our program? "...... After a while, I said, "You shut down our site and process pool, and restart the server "...... After a few minutes, the server started, and our website was shut down, the server still had a w3wp.exe high CPU consumption. I said this was definitely not our problem. They also knew they had made a mistake, but did not apologize. I went back to the office to test and found that the data maintenance program on the website was
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