Search notes:

uber jobs

A job that runs within the application master is a uber job. Separate containers are not needed with uber jobs.

This might benefit if only small amount of data should be processed.

Configuration parameters

mapreduce.job.ubertask.enable (must be set to true to enable uber jobs) mapreduce.job.ubertask.maxmaps, mapreduce.job.ubertask.maxreduces, mapreduce.job.ubertask.maxbytes

Index

Fatal error: Uncaught PDOException: SQLSTATE[HY000]: General error: 8 attempt to write a readonly database in /home/httpd/vhosts/renenyffenegger.ch/php/web-request-database.php:78 Stack trace: #0 /home/httpd/vhosts/renenyffenegger.ch/php/web-request-database.php(78): PDOStatement->execute(Array) #1 /home/httpd/vhosts/renenyffenegger.ch/php/web-request-database.php(30): insert_webrequest_('/notes/developm...', 1759414444, '216.73.216.42', 'Mozilla/5.0 App...', NULL) #2 /home/httpd/vhosts/renenyffenegger.ch/httpsdocs/notes/development/Apache/Hadoop/YARN/uber-jobs(39): insert_webrequest() #3 {main} thrown in /home/httpd/vhosts/renenyffenegger.ch/php/web-request-database.php on line 78