error in PX

[samsuf2002]

hi i am getting this fatals

node_node1: Fatal Error: broadcastStepIR: fork() failed on node node1: Resource unavailable; try again

main_program: The Section Leader on node node1 has terminated unexpectedly.

main_program: Fatal Error: Unable to start ORCHESTRATE job: APT_PMwaitForPlayersToStart failed while waiting for players to confirm startup. This likely indicates a network problem.
Status from APT_PMpoll is 0; node name is node2

my src and targt are sql server

can any one help me out
thanx

[Krazykoolrohit]

as it says. most likely a network problem. try again

[venky]

This error may be due to lack of Space .
This mostly occurs when unix env is not able to create additional process.
close session using DS.TOOLS from Administrator..

[kumar_s]

Section leader dies may be even due to the network conjestion (where lack in player connectiviy) or due to resource unavialability.
What was the network conjestion / Resource avaialbility during the error?