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Ashif Ahamed
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Karaf Commands
With Karaf already installed, open a command line console and change directory to <KARAF_HOME>. To start the server, run the following command in Windows: bin\karaf.bat respectively on Unix: bin/karaf You should see the following information on the command ...
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The differences between Unique match, First match and All matches
This article uses examples to illustrate the differences of the three match models.  These three match models mentioned in the title are provided by the tMap component when this component is used to perform the JOIN (Inner Join / Left Outer Join) operation ...
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Split large files into a number of smaller files in Unix
To split large files into smaller files in  Unix , use the  split  command. At the Unix prompt, enter: split [options] filename prefix Replace  filename  with the name of the large file you wish to split. Replace  prefix  with the name you wish to give the ...
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Identifying the bottleneck threads using Thread Dump
top - to list CPU and memory utilization by pid top -H -p PID (e.g top -H -p 12100) - to list the CPU utilization by mulithreaded Generate the thread dump using jstack: jstack -l pid > filename e.g jstack -l 12100 > ThreadDump_01032018.txt Conversion of Dec...
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Code Snippet to clear Talend Hash Components
Instantiate thashinput:  org.talend.designer.components.hashfile.common.MapHashFile mf_tHashInput_2 = org.talend.designer.components.hashfile.common.MapHashFile.getMapHashFile(); Clear the Cache based on PID: mf_tHashInput_2.clearCache("tHashFile_"+jobName+...
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Listing the PID by CPU Utilization Percentage
ps -eo pid,user,pcpu,command --sort=-pcpu
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Listing the PID by CPU Utilization Percentage
ps -eo pid,user,pcpu,command --sort=-pcpu
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Linux Commands for Port Find and Blxok
To get the list of portnumber  netstat  -tulpn To Free Port Number : sudo fuser -k Port_Number/tcp
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SQL Performance Tuning using Indexes
SQL Performance Tuning using Indexes Effective indexes are one of the
best ways to improve performance in a database application. Without an index,
the SQL Server engine is like a reader trying to find a word in a book by
examining each page. By using the i...
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