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# troubleshooting
s
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s
Yes, MMs use local storage for intermediate files used while ingesting and to respond to queries.
k
What are the other components, which require disk space. I have added disk space to historicals, middle managers, coordinator and brokers. Does overload and router also require disk space
@Sergio Ferragut Thanks
g
overlord and router require only minimal disk space; a few small tmp files and whatever you want to allocate to log files
same with coordinator
main disk space users are Historicals (need to store all your queryable data, and some temporary data during queries if groupBy disk spilling is enabled); MMs (need to store temporary data used during ingestion); and Brokers (temporary data during queries if groupBy disk spilling is enabled)