How to collect logs file form s3 ? elasticbeanstalk

I've enable log files rotations to amazon s3, every hour amazon create file "var_log_httpd_rotated_error_log.gz" for every instance at my elastic beanstalk environment.

first question : the log files will not overlap ? so every time amazon save the file at s3, it also delete it from the instance and create a new one ! right ?

second question : How could I collect all that files, I want to build a sever that collect all that files and enable me to search for text at those files !