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# troubleshooting
s
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g
the main things that use tmp space are indexing (a few GB of temp space per concurrent task is good) and query spill-to-disk (which you may not use at all as the default config is in-memory. but you can enable this using
maxOnDiskStorage
) if you aren't using query spill-to-disk then i would set aside a few GB per
druid.worker.capacity
for data servers.
d
It also depends on your JVM config. Do you dump large heap when daemon crashed? If so, you need ample space for that.