Suggest larger heap space for #6443.
Suggest larger heap space for #6443.

sysrqb/metrics-tasks,gsathya/metrics-tasks,sysrqb/metrics-tasks,gsathya/metrics-tasks,sysrqb/metrics-tasks,gsathya/metrics-tasks,gsathya/metrics-tasks,gsathya/metrics-tasks,sysrqb/metrics-tasks,sysrqb/metrics-tasks,sysrqb/metrics-tasks,gsathya/metrics-tasks