Randomly got the following error: CRITICAL: Error executing: kneaddata_bowtie2_discordant_pairs but all the files before look fine?

Question

[O.rka]

Does anyone know what this could be? I've never gotten this error before and I've used kneaddata a lot.

(base) -bash-4.1$ cat metagenome_output/31-PE-N718S517-1_S12/preprocessing/kneaddata.log
07/15/2019 09:18:46 PM - kneaddata.knead_data - INFO: Running kneaddata v0.7.2
07/15/2019 09:18:46 PM - kneaddata.knead_data - INFO: Output files will be written to: /local/ifs3_scratch/METAGENOMICS/jespinoz/plastisphere/metagenome_output/31-PE-N718S517-1_S12/preprocessing
07/15/2019 09:18:46 PM - kneaddata.knead_data - DEBUG: Running with the following arguments:
verbose = False
bmtagger_path = None
minscore = 50
bowtie2_path = /usr/local/bin/bowtie2
maxperiod = 500
no_discordant = False
serial = False
fastqc_start = False
bmtagger = False
cat_final_output = False
log_level = DEBUG
log = /local/ifs3_scratch/METAGENOMICS/jespinoz/plastisphere/metagenome_output/31-PE-N718S517-1_S12/preprocessing/kneaddata.log
max_memory = 500m
remove_intermediate_output = False
fastqc_path = None
output_dir = /local/ifs3_scratch/METAGENOMICS/jespinoz/plastisphere/metagenome_output/31-PE-N718S517-1_S12/preprocessing
trf_path = None
remove_temp_output = True
reference_db = /usr/local/scratch/METAGENOMICS/jespinoz/db/genomes/human/GRCh38.p13/GCA_000001405.15_GRCh38_no_alt_analysis_set.fna.bowtie_index
input = /usr/local/scratch/METAGENOMICS/jespinoz/plastisphere/seq_raw/31-PE-N718S517-1_S12_R1_001.fastq.gz /usr/local/scratch/METAGENOMICS/jespinoz/plastisphere/seq_raw/31-PE-N718S517-1_S12_R2_001.fastq.gz
pi = 10
reorder = False
pm = 80
trimmomatic_path = /usr/local/bin/trimmomatic-0.35.jar
store_temp_output = False
mismatch = 7
threads = 16
delta = 7
bowtie2_options = --seed 0 --phred33
bypass_trim = False
processes = 1
trimmomatic_quality_scores = -phred33
fastqc_end = False
trf = False
trimmomatic_options = None
output_prefix = kneaddata
match = 2

07/15/2019 09:18:46 PM - kneaddata.utilities - INFO: Decompressing gzipped file ...
07/15/2019 09:18:47 PM - kneaddata.utilities - INFO: Decompressed file created: /local/ifs3_scratch/METAGENOMICS/jespinoz/plastisphere/metagenome_output/31-PE-N718S517-1_S12/preprocessing/decompressed_DAVjLS_31-PE-N718S517-1_S12_R1_001.fastq
07/15/2019 09:18:47 PM - kneaddata.utilities - INFO: Decompressing gzipped file ...
07/15/2019 09:18:47 PM - kneaddata.utilities - INFO: Decompressed file created: /local/ifs3_scratch/METAGENOMICS/jespinoz/plastisphere/metagenome_output/31-PE-N718S517-1_S12/preprocessing/decompressed_gIbHnD_31-PE-N718S517-1_S12_R2_001.fastq
07/15/2019 09:18:47 PM - kneaddata.utilities - INFO: Reformatting file sequence identifiers ...
07/15/2019 09:18:48 PM - kneaddata.utilities - INFO: Reformatting file sequence identifiers ...
07/15/2019 09:18:49 PM - kneaddata.utilities - INFO: READ COUNT: raw pair1 : Initial number of reads ( /local/ifs3_scratch/METAGENOMICS/jespinoz/plastisphere/metagenome_output/31-PE-N718S517-1_S12/preprocessing/reformatted_identifiersAbBKXw_decompressed_gIbHnD_31-PE-N718S517-1_S12_R2_001 ): 56089
07/15/2019 09:18:49 PM - kneaddata.utilities - INFO: READ COUNT: raw pair2 : Initial number of reads ( /local/ifs3_scratch/METAGENOMICS/jespinoz/plastisphere/metagenome_output/31-PE-N718S517-1_S12/preprocessing/reformatted_identifiersWHuU4h_decompressed_DAVjLS_31-PE-N718S517-1_S12_R1_001 ): 56089
07/15/2019 09:18:49 PM - kneaddata.utilities - DEBUG: Checking input file to Trimmomatic : /local/ifs3_scratch/METAGENOMICS/jespinoz/plastisphere/metagenome_output/31-PE-N718S517-1_S12/preprocessing/reformatted_identifiersWHuU4h_decompressed_DAVjLS_31-PE-N718S517-1_S12_R1_001
07/15/2019 09:18:49 PM - kneaddata.utilities - DEBUG: Checking input file to Trimmomatic : /local/ifs3_scratch/METAGENOMICS/jespinoz/plastisphere/metagenome_output/31-PE-N718S517-1_S12/preprocessing/reformatted_identifiersAbBKXw_decompressed_gIbHnD_31-PE-N718S517-1_S12_R2_001
07/15/2019 09:18:49 PM - kneaddata.utilities - INFO: Running Trimmomatic ...
07/15/2019 09:18:49 PM - kneaddata.utilities - INFO: Execute command: java -Xmx500m -jar /usr/local/bin/trimmomatic-0.35.jar PE -threads 16 -phred33 /local/ifs3_scratch/METAGENOMICS/jespinoz/plastisphere/metagenome_output/31-PE-N718S517-1_S12/preprocessing/reformatted_identifiersWHuU4h_decompressed_DAVjLS_31-PE-N718S517-1_S12_R1_001 /local/ifs3_scratch/METAGENOMICS/jespinoz/plastisphere/metagenome_output/31-PE-N718S517-1_S12/preprocessing/reformatted_identifiersAbBKXw_decompressed_gIbHnD_31-PE-N718S517-1_S12_R2_001 /local/ifs3_scratch/METAGENOMICS/jespinoz/plastisphere/metagenome_output/31-PE-N718S517-1_S12/preprocessing/kneaddata.trimmed.1.fastq /local/ifs3_scratch/METAGENOMICS/jespinoz/plastisphere/metagenome_output/31-PE-N718S517-1_S12/preprocessing/kneaddata.trimmed.single.1.fastq /local/ifs3_scratch/METAGENOMICS/jespinoz/plastisphere/metagenome_output/31-PE-N718S517-1_S12/preprocessing/kneaddata.trimmed.2.fastq /local/ifs3_scratch/METAGENOMICS/jespinoz/plastisphere/metagenome_output/31-PE-N718S517-1_S12/preprocessing/kneaddata.trimmed.single.2.fastq ILLUMINACLIP:/usr/local/devel/ANNOTATION/jespinoz/anaconda/envs/mage_env/lib/python2.7/site-packages/kneaddata/adapters/NexteraPE-PE.fa:2:30:10:8:TRUE SLIDINGWINDOW:4:20 MINLEN:150
07/15/2019 09:18:52 PM - kneaddata.utilities - DEBUG: TrimmomaticPE: Started with arguments:
 -threads 16 -phred33 /local/ifs3_scratch/METAGENOMICS/jespinoz/plastisphere/metagenome_output/31-PE-N718S517-1_S12/preprocessing/reformatted_identifiersWHuU4h_decompressed_DAVjLS_31-PE-N718S517-1_S12_R1_001 /local/ifs3_scratch/METAGENOMICS/jespinoz/plastisphere/metagenome_output/31-PE-N718S517-1_S12/preprocessing/reformatted_identifiersAbBKXw_decompressed_gIbHnD_31-PE-N718S517-1_S12_R2_001 /local/ifs3_scratch/METAGENOMICS/jespinoz/plastisphere/metagenome_output/31-PE-N718S517-1_S12/preprocessing/kneaddata.trimmed.1.fastq /local/ifs3_scratch/METAGENOMICS/jespinoz/plastisphere/metagenome_output/31-PE-N718S517-1_S12/preprocessing/kneaddata.trimmed.single.1.fastq /local/ifs3_scratch/METAGENOMICS/jespinoz/plastisphere/metagenome_output/31-PE-N718S517-1_S12/preprocessing/kneaddata.trimmed.2.fastq /local/ifs3_scratch/METAGENOMICS/jespinoz/plastisphere/metagenome_output/31-PE-N718S517-1_S12/preprocessing/kneaddata.trimmed.single.2.fastq ILLUMINACLIP:/usr/local/devel/ANNOTATION/jespinoz/anaconda/envs/mage_env/lib/python2.7/site-packages/kneaddata/adapters/NexteraPE-PE.fa:2:30:10:8:TRUE SLIDINGWINDOW:4:20 MINLEN:150
Using PrefixPair: 'AGATGTGTATAAGAGACAG' and 'AGATGTGTATAAGAGACAG'
Using Long Clipping Sequence: 'GTCTCGTGGGCTCGGAGATGTGTATAAGAGACAG'
Using Long Clipping Sequence: 'TCGTCGGCAGCGTCAGATGTGTATAAGAGACAG'
Using Long Clipping Sequence: 'CTGTCTCTTATACACATCTCCGAGCCCACGAGAC'
Using Long Clipping Sequence: 'CTGTCTCTTATACACATCTGACGCTGCCGACGA'
ILLUMINACLIP: Using 1 prefix pairs, 4 forward/reverse sequences, 0 forward only sequences, 0 reverse only sequences
Input Read Pairs: 56089 Both Surviving: 14369 (25.62%) Forward Only Surviving: 15061 (26.85%) Reverse Only Surviving: 421 (0.75%) Dropped: 26238 (46.78%)
TrimmomaticPE: Completed successfully

07/15/2019 09:18:52 PM - kneaddata.utilities - DEBUG: Checking output file from Trimmomatic : /local/ifs3_scratch/METAGENOMICS/jespinoz/plastisphere/metagenome_output/31-PE-N718S517-1_S12/preprocessing/kneaddata.trimmed.1.fastq
07/15/2019 09:18:52 PM - kneaddata.utilities - DEBUG: Checking output file from Trimmomatic : /local/ifs3_scratch/METAGENOMICS/jespinoz/plastisphere/metagenome_output/31-PE-N718S517-1_S12/preprocessing/kneaddata.trimmed.single.1.fastq
07/15/2019 09:18:52 PM - kneaddata.utilities - DEBUG: Checking output file from Trimmomatic : /local/ifs3_scratch/METAGENOMICS/jespinoz/plastisphere/metagenome_output/31-PE-N718S517-1_S12/preprocessing/kneaddata.trimmed.2.fastq
07/15/2019 09:18:52 PM - kneaddata.utilities - DEBUG: Checking output file from Trimmomatic : /local/ifs3_scratch/METAGENOMICS/jespinoz/plastisphere/metagenome_output/31-PE-N718S517-1_S12/preprocessing/kneaddata.trimmed.single.2.fastq
07/15/2019 09:18:52 PM - kneaddata.utilities - INFO: READ COUNT: trimmed pair1 : Total reads after trimming ( /local/ifs3_scratch/METAGENOMICS/jespinoz/plastisphere/metagenome_output/31-PE-N718S517-1_S12/preprocessing/kneaddata.trimmed.1.fastq ): 14369
07/15/2019 09:18:52 PM - kneaddata.utilities - INFO: READ COUNT: trimmed pair2 : Total reads after trimming ( /local/ifs3_scratch/METAGENOMICS/jespinoz/plastisphere/metagenome_output/31-PE-N718S517-1_S12/preprocessing/kneaddata.trimmed.2.fastq ): 14369
07/15/2019 09:18:52 PM - kneaddata.utilities - INFO: READ COUNT: trimmed orphan1 : Total reads after trimming ( /local/ifs3_scratch/METAGENOMICS/jespinoz/plastisphere/metagenome_output/31-PE-N718S517-1_S12/preprocessing/kneaddata.trimmed.single.1.fastq ): 15061
07/15/2019 09:18:52 PM - kneaddata.utilities - INFO: READ COUNT: trimmed orphan2 : Total reads after trimming ( /local/ifs3_scratch/METAGENOMICS/jespinoz/plastisphere/metagenome_output/31-PE-N718S517-1_S12/preprocessing/kneaddata.trimmed.single.2.fastq ): 421
07/15/2019 09:18:52 PM - kneaddata.run - INFO: Decontaminating ...
07/15/2019 09:18:52 PM - kneaddata.utilities - DEBUG: Checking input file to bowtie2 : /local/ifs3_scratch/METAGENOMICS/jespinoz/plastisphere/metagenome_output/31-PE-N718S517-1_S12/preprocessing/kneaddata.trimmed.1.fastq
07/15/2019 09:18:52 PM - kneaddata.utilities - DEBUG: Checking input file to bowtie2 : /local/ifs3_scratch/METAGENOMICS/jespinoz/plastisphere/metagenome_output/31-PE-N718S517-1_S12/preprocessing/kneaddata.trimmed.2.fastq
07/15/2019 09:18:52 PM - kneaddata.utilities - DEBUG: Checking input file to bowtie2 : /local/ifs3_scratch/METAGENOMICS/jespinoz/plastisphere/metagenome_output/31-PE-N718S517-1_S12/preprocessing/kneaddata.trimmed.single.1.fastq
07/15/2019 09:18:52 PM - kneaddata.utilities - DEBUG: Checking input file to bowtie2 : /local/ifs3_scratch/METAGENOMICS/jespinoz/plastisphere/metagenome_output/31-PE-N718S517-1_S12/preprocessing/kneaddata.trimmed.single.2.fastq
07/15/2019 09:18:52 PM - kneaddata.utilities - INFO: Running bowtie2 ...
07/15/2019 09:18:52 PM - kneaddata.utilities - INFO: Execute command: kneaddata_bowtie2_discordant_pairs --bowtie2 /usr/local/bin/bowtie2 --threads 16 -x /usr/local/scratch/METAGENOMICS/jespinoz/db/genomes/human/GRCh38.p13/GCA_000001405.15_GRCh38_no_alt_analysis_set.fna.bowtie_index --bowtie2-options "--seed 0 --phred33" -1 /local/ifs3_scratch/METAGENOMICS/jespinoz/plastisphere/metagenome_output/31-PE-N718S517-1_S12/preprocessing/kneaddata.trimmed.1.fastq -2 /local/ifs3_scratch/METAGENOMICS/jespinoz/plastisphere/metagenome_output/31-PE-N718S517-1_S12/preprocessing/kneaddata.trimmed.2.fastq --un-pair /local/ifs3_scratch/METAGENOMICS/jespinoz/plastisphere/metagenome_output/31-PE-N718S517-1_S12/preprocessing/kneaddata_GCA_000001405.15_GRCh38_no_alt_analysis_set.fna.bowtie_index_bowtie2_paired_clean_%.fastq --al-pair /local/ifs3_scratch/METAGENOMICS/jespinoz/plastisphere/metagenome_output/31-PE-N718S517-1_S12/preprocessing/kneaddata_GCA_000001405.15_GRCh38_no_alt_analysis_set.fna.bowtie_index_bowtie2_paired_contam_%.fastq -U /local/ifs3_scratch/METAGENOMICS/jespinoz/plastisphere/metagenome_output/31-PE-N718S517-1_S12/preprocessing/kneaddata.trimmed.single.1.fastq,/local/ifs3_scratch/METAGENOMICS/jespinoz/plastisphere/metagenome_output/31-PE-N718S517-1_S12/preprocessing/kneaddata.trimmed.single.2.fastq --un-single /local/ifs3_scratch/METAGENOMICS/jespinoz/plastisphere/metagenome_output/31-PE-N718S517-1_S12/preprocessing/kneaddata_GCA_000001405.15_GRCh38_no_alt_analysis_set.fna.bowtie_index_bowtie2_unmatched_%_clean.fastq --al-single /local/ifs3_scratch/METAGENOMICS/jespinoz/plastisphere/metagenome_output/31-PE-N718S517-1_S12/preprocessing/kneaddata_GCA_000001405.15_GRCh38_no_alt_analysis_set.fna.bowtie_index_bowtie2_unmatched_%_contam.fastq -S /dev/null
07/15/2019 09:18:52 PM - kneaddata.utilities - CRITICAL: Error executing: kneaddata_bowtie2_discordant_pairs --bowtie2 /usr/local/bin/bowtie2 --threads 16 -x /usr/local/scratch/METAGENOMICS/jespinoz/db/genomes/human/GRCh38.p13/GCA_000001405.15_GRCh38_no_alt_analysis_set.fna.bowtie_index --bowtie2-options "--seed 0 --phred33" -1 /local/ifs3_scratch/METAGENOMICS/jespinoz/plastisphere/metagenome_output/31-PE-N718S517-1_S12/preprocessing/kneaddata.trimmed.1.fastq -2 /local/ifs3_scratch/METAGENOMICS/jespinoz/plastisphere/metagenome_output/31-PE-N718S517-1_S12/preprocessing/kneaddata.trimmed.2.fastq --un-pair /local/ifs3_scratch/METAGENOMICS/jespinoz/plastisphere/metagenome_output/31-PE-N718S517-1_S12/preprocessing/kneaddata_GCA_000001405.15_GRCh38_no_alt_analysis_set.fna.bowtie_index_bowtie2_paired_clean_%.fastq --al-pair /local/ifs3_scratch/METAGENOMICS/jespinoz/plastisphere/metagenome_output/31-PE-N718S517-1_S12/preprocessing/kneaddata_GCA_000001405.15_GRCh38_no_alt_analysis_set.fna.bowtie_index_bowtie2_paired_contam_%.fastq -U /local/ifs3_scratch/METAGENOMICS/jespinoz/plastisphere/metagenome_output/31-PE-N718S517-1_S12/preprocessing/kneaddata.trimmed.single.1.fastq,/local/ifs3_scratch/METAGENOMICS/jespinoz/plastisphere/metagenome_output/31-PE-N718S517-1_S12/preprocessing/kneaddata.trimmed.single.2.fastq --un-single /local/ifs3_scratch/METAGENOMICS/jespinoz/plastisphere/metagenome_output/31-PE-N718S517-1_S12/preprocessing/kneaddata_GCA_000001405.15_GRCh38_no_alt_analysis_set.fna.bowtie_index_bowtie2_unmatched_%_clean.fastq --al-single /local/ifs3_scratch/METAGENOMICS/jespinoz/plastisphere/metagenome_output/31-PE-N718S517-1_S12/preprocessing/kneaddata_GCA_000001405.15_GRCh38_no_alt_analysis_set.fna.bowtie_index_bowtie2_unmatched_%_contam.fastq -S /dev/null

[O.rka]

2nd part:

07/15/2019 09:18:53 PM - kneaddata.utilities - INFO: Total memory = 252.185920715 GB
07/15/2019 09:18:53 PM - kneaddata.utilities - INFO: Available memory = 249.285884857 GB
07/15/2019 09:18:53 PM - kneaddata.utilities - INFO: Free memory = 234.216808319 GB
07/15/2019 09:18:53 PM - kneaddata.utilities - INFO: Percent memory used = 1.1 %
07/15/2019 09:18:53 PM - kneaddata.utilities - INFO: CPU percent = 0.0 %
07/15/2019 09:18:53 PM - kneaddata.utilities - INFO: Total cores count = 56
07/15/2019 09:18:53 PM - kneaddata.utilities - INFO: Total disk = 0.953025817871 GB
07/15/2019 09:18:53 PM - kneaddata.utilities - INFO: Used disk = 0.654418945312 GB
07/15/2019 09:18:53 PM - kneaddata.utilities - INFO: Percent disk used = 72.5 %
07/15/2019 09:18:53 PM - kneaddata.utilities - INFO: Process create time = 2019-07-15 21:18:52
07/15/2019 09:18:53 PM - kneaddata.utilities - INFO: Process user time = 0.05 seconds
07/15/2019 09:18:53 PM - kneaddata.utilities - INFO: Process system time = 0.03 seconds
07/15/2019 09:18:53 PM - kneaddata.utilities - INFO: Process CPU percent = 0.0 %
07/15/2019 09:18:53 PM - kneaddata.utilities - INFO: Process memory RSS = 0.00945281982422 GB
07/15/2019 09:18:53 PM - kneaddata.utilities - INFO: Process memory VMS = 0.126251220703 GB
07/15/2019 09:18:53 PM - kneaddata.utilities - INFO: Process memory percent = 0.00376196739005 %