How to set sphinx.yml for Thinking-Sphinx (full text indexer)?

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vi config/sphinx.yml

production:
port: 3312
address: 127.0.0.1
mem_limit: 512M
max_children: 300
max_matches: 100000
seamless_rotate: 1
preopen_indexes: 1
query_log_file: /mnt/app/rails/releases/code/log/searchd.query.log
searchd_log_file: /mnt/app/rails/releases/code/log/searchd.log
pid_file: /mnt/app/crawler/rails/code/log/searchd.production.pid
searchd_file_path: /mnt/app/rails/current/db/sphinx/production/

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It is for Production mode, you can set same for development or staging mode just to change environment.