I've a table with 500M records. I need to update a column with some business logic. It is not a BULK update, its an individual update.
Was thinking to process/update 500M records, can MapReduce jobs efficient update the rows? My DB is MySQL.
0
There are 0 best solutions below
Related Questions in MAPREDUCE
- Hadoop No appenders could be found for logger (org.apache.hadoop.mapreduce.v2.app.MRAppMaster)
- Top-N using Python, MapReduce
- Spark Driver vs MapReduce Driver on YARN
- Hadoop MapReduce WordPairsCount produces inconsistent results
- Hadoop MiniCluster Web UI
- Java lang runtime exception or jar file does not exist error
- basic python but wierd problem in hadoop-stream text value changes in MapReduce
- Hadoop is writing to file using context.write() but output file turns out empty
- Error while executing load_summarize_chain with custom prompts
- Apache Crunch Job On AWS EMR using Oozie
- Hadoop MapReducee WordCountLength - Type mismatch in key from map: expected org.apache.hadoop.io.Text, received org.apache.hadoop.io.IntWritable
- Error: java.io.IOException: wrong value class: class org.apache.hadoop.io.Text is not class org.apache.hadoop.io.FloatWritable
- I'm having trouble with a map reduce script
- No Output for MapReduce Program even after successful job completion on Cloudera VM
- Context.write method returns wrong result in Mapreduce java
Trending Questions
- UIImageView Frame Doesn't Reflect Constraints
- Is it possible to use adb commands to click on a view by finding its ID?
- How to create a new web character symbol recognizable by html/javascript?
- Why isn't my CSS3 animation smooth in Google Chrome (but very smooth on other browsers)?
- Heap Gives Page Fault
- Connect ffmpeg to Visual Studio 2008
- Both Object- and ValueAnimator jumps when Duration is set above API LvL 24
- How to avoid default initialization of objects in std::vector?
- second argument of the command line arguments in a format other than char** argv or char* argv[]
- How to improve efficiency of algorithm which generates next lexicographic permutation?
- Navigating to the another actvity app getting crash in android
- How to read the particular message format in android and store in sqlite database?
- Resetting inventory status after order is cancelled
- Efficiently compute powers of X in SSE/AVX
- Insert into an external database using ajax and php : POST 500 (Internal Server Error)
Popular # Hahtags
Popular Questions
- How do I undo the most recent local commits in Git?
- How can I remove a specific item from an array in JavaScript?
- How do I delete a Git branch locally and remotely?
- Find all files containing a specific text (string) on Linux?
- How do I revert a Git repository to a previous commit?
- How do I create an HTML button that acts like a link?
- How do I check out a remote Git branch?
- How do I force "git pull" to overwrite local files?
- How do I list all files of a directory?
- How to check whether a string contains a substring in JavaScript?
- How do I redirect to another webpage?
- How can I iterate over rows in a Pandas DataFrame?
- How do I convert a String to an int in Java?
- Does Python have a string 'contains' substring method?
- How do I check if a string contains a specific word?