aegisthus | A Bulk Data Pipeline out of Cassandra
kandi X-RAY | aegisthus Summary
kandi X-RAY | aegisthus Summary
A Bulk Data Pipeline out of Cassandra. Aegisthus implements a reader for the SSTable format and provides a map/reduce program to create a compacted snapshot of the data contained in a column family.
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Top functions reviewed by kandi - BETA
- Main entry point of the sstable
- Initializes the CFMetaData object from the configuration
- Get the globs for the given directory
- Sets the configuration from cql3
- Gets a record writer
- Get converter
- Copy a file to a temporary location
- Copy file to temp location
- Get the list of split splits
- Returns a list of SSTableSplables for the given file
- Adds the commit to a file
- Compares two byte arrays
- Reads the compression header
- Reads the length of the chunk lengths
- This method is called when a key is mapped
- Reads the data from the specified input stream
- Reads the next key value pair
- Read the data from the SSTable
- Returns the next row
- Entry point to SSTable
- Writes this column
- Main entry point
- Create a record writer
- Serialize a Map
- This method reduces the set of values
- Returns the relative paths of all files
aegisthus Key Features
aegisthus Examples and Code Snippets
Community Discussions
Trending Discussions on aegisthus
QUESTION
I want to write a code that can be used on different XML files (all with TEI encoding) to see if specific elements and attributes appear, how often they appear and in what context). To do this I have written the following code:
...ANSWER
Answered 2022-Mar-20 at 19:59The values in your writer.writerow()
will not be defined if an element is missing. You could just define some default values to avoid this.
Try adding the following after the try
statement:
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install aegisthus
You can use aegisthus like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the aegisthus component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .
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