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Interstage Big DataParallel Processing ServerV1.0.0 User's Guide
Interstage

A.1.11 bdpp_start

Name

/opt/FJSVbdpp/bin/bdpp_start - Interstage Big Data Parallel Processing Server start

Format

bdpp_start

Function description

This command starts Hadoop.
It starts the Hadoop JobTracker of the master server and the Hadoop TaskTracker of all the connection target slave servers.

Options

None

Required permissions and execution environment
Permissions

Operating system administrator

Execution environment

Master server

End status

The following status codes are returned:

0

Processed normally

Other than 0

Error occurred


Note

If the bdpp_start command and the bdpp_stop command are executed simultaneously, a mismatch may arise in the run state of the JobTracker of the Hadoop on the master server or in the TaskTracker of the Hadoop on the slave server.

If this occurs, use the bdpp_stat -all command to check the status, then re-execute the bdpp_start command so that the JobTrackers of the Hadoop on the master server or the TaskTrackers of the Hadoop on the slave servers are all running, as shown in the following table.

Table A.1 Status of the bdpp_stat -all command and the execution results of the bdpp_start command

Master server JobTracker

Slave server TaskTracker

bdpp_start execution results

Not running

Not running

  • Start the master server JobTracker and all slave server TaskTrackers

Running on some slave servers

  • Start the master server JobTracker and all slave server TaskTrackers that are not running

Running on all slave servers

  • Start only the Master server JobTracker

Running

Not running

  • "bdpp: WARN : 001: bdpp Hadoop is already started." message is output

  • Start all slave server TaskTrackers

Running on some slave servers

  • "bdpp: WARN : 001: bdpp Hadoop is already started." message is output

  • Start all slave server TaskTrackers that are not running

Running on all slave servers

  • "bdpp: WARN : 001: bdpp Hadoop is already started." message only is output