apache spark - Number of executors in local mode and difference between client and cluster modes -

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i have simple question spark configuration, in local mode, number of executors 1, there 1 working node?

another question have difference between deploy modes client or cluster mode? documentation mention in client model, driver initiated outside cluster, can not statement..

if remember correctly, 1 executor in local mode, if not specify otherwise.

the difference between client , cluster mode driver runs. in client mode runs on machine deploy job. in cluster mode, driver run on node in cluster. in client mode have easy acces whatever driver outputs stdout , stderr. go client mode if in doubt.


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