Hi all,

- What does the shared_buffers setting do ?
- Does it mean that that the postgres cannot access most of the physical RAM 
but limited to the memory setting (shared_buffers) specified ?
- How do i relate and set max_connections and shared_buffers?
- Is there a thumb rule to determine shared_buffers from max connections ? 
- I see , by default max_connections set to 100 and shared_buffers to 1000 - 
does 1000 mean 1000 bytes or KB ?
- Also postgres will not start if the shared_buffers value exceeds the kernel 
setting of SHMMAX. do i need to recompile the kernel to increase this value ? 
or is there any workaround ? 

tia,
regards,
KM

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