BDA Expansion Fails with Error Illegal Number of Nodes on Rack (Doc ID 2107177.1)

Last updated on MARCH 24, 2016

Applies to:

Big Data Appliance Integrated Software - Version 4.2.0 and later
Linux x86-64

Symptoms

The symptom is that it is not possible to expand the cluster by a number other than multiples of 3 nodes.  Doing so results in a failure.  The Mammoth log files show the following error:

2016-02-08 14:21:22:
GridSteps::DieTrap('Exiting...') called at GridSteps.pm line 1532
GridSteps::MsgPrint('EE', 'Cannot continue with operation') called at GridSteps.pm line 13668
GridSteps::ValidateParamfile() called at /opt/oracle/BDAMammoth/bdaconfig/GridInst.pl line 151

GridSteps.pm line 13668 corresponds to :

for ($idx = 0; $idx <= $#appl_node_count; $idx++)
{
if ($appl_node_count[$idx] < 3)
{
MsgPrint("E", "Illegal number of nodes on rack $racklist[$idx]");
MsgPrint("EE", "Cannot continue with operation");
}
}

 

Changes

 Trying to expand the cluster via Mammoth.

Cause

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