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IOError Errno 28 No space left on device

Error while OTU picking


pick_open_reference_otus.py ...

IOError: [Errno 28] No space left on device


Problem:
/tmp/ directory might be too small (for many samples or large sequence reference database)

Solution:
create new bigger directory for temporary files and tell path to qiime (a) and python (b)
    (a) add path to QIIME default setting file .qiime_config
    → Edit .qiime_config
    (b) for python, set path to shell variable TMPDIR (add command to your .bashrc file)
    export TMPDIR=/my/new/tmp/directory