unable to write to FIFOs

[splaisan]

Hi,

although I can output to 8 chunks as fastq.gz files, when I create fifo using the same names, the split does not start.
Is there something intrinsic preventing the use of FIFOs for outputting the fastqsplitter chunks?

It would save me disk space to process the data from the FIFO as they are filled instead of creating chunks and then consuming them.

Thanks for your help

# works
fastqsplitter -i reads.fastq.gz \
  -o reads_chunk_1.fq.gz \
  -o reads_chunk_2.fq.gz \
  -o reads_chunk_3.fq.gz \
  -o reads_chunk_4.fq.gz \
  -o reads_chunk_5.fq.gz \
  -o reads_chunk_6.fq.gz \
  -o reads_chunk_7.fq.gz \
  -o reads_chunk_8.fq.gz \
  -t 2

# does not work
mkfifo $(seq -f "reads_chunk_%g.fq.gz" 1 8)
fastqsplitter -i reads.fastq.gz \
  -o reads_chunk_1.fq.gz \
  -o reads_chunk_2.fq.gz \
  -o reads_chunk_3.fq.gz \
  -o reads_chunk_4.fq.gz \
  -o reads_chunk_5.fq.gz \
  -o reads_chunk_6.fq.gz \
  -o reads_chunk_7.fq.gz \
  -o reads_chunk_8.fq.gz \
  -t 2

# nothing happens and the FIFOs remain empty if interrogated with zcat