Unconfigured Ad

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts
  • lfaller
    Junior Member
    • Jul 2017
    • 4

    Error encountered when running kmercountexact.sh from bbmap

    Hi all,

    I am encountering a java.lang.AssertionError when trying to run kmercountexact.sh.

    The two input files are 820 Mb each. I also tried running this script with subsetted data of the original datasets (using just the first 250 fastq records) but I got the same error message.

    The help documentation says "Last modified August 2, 2017" so it is a fairly recent version.

    Any advice is appreciated!
    ~Lina

    Code:
    $ ~/bbmap/kmercountexact.sh in1=${R1} in2=${R1} khist=${HIST} peaks=${PEAKS}
    java -ea -Xmx89748m -Xms89748m -cp /home/lina/bbmap/current/ jgi.KmerCountExact in1=7064890_R1.fastq in2=7064890_R1.fastq khist=khist.txt peaks=peaks.txt
    Executing jgi.KmerCountExact [in1=7064890_R1.fastq, in2=7064890_R1.fastq, khist=khist.txt, peaks=peaks.txt]
    
    Initial:
    Memory: max=90186m, free=88774m, used=1412m
    
    Executing kmer.KmerTableSet [in1=7064890_R1.fastq, in2=7064890_R1.fastq, khist=khist.txt, peaks=peaks.txt]
    
    Initial:
    Ways=101, initialSize=128000, prefilter=f, prealloc=f
    Memory: max=90186m, free=87363m, used=2823m
    
    Estimated kmer capacity:        3509022984
    After table allocation:
    Memory: max=90186m, free=86421m, used=3765m
    
    Exception in thread "main" java.lang.AssertionError: 7064890_R1.fastq, 7064890_R1.fastq
            at stream.ConcurrentReadInputStream.getReadInputStream(ConcurrentReadInputStream.java:111)
            at stream.ConcurrentReadInputStream.getReadInputStream(ConcurrentReadInputStream.java:45)
            at kmer.KmerTableSet.loadKmers(KmerTableSet.java:381)
            at kmer.AbstractKmerTableSet.loadKmers(AbstractKmerTableSet.java:288)
            at kmer.AbstractKmerTableSet.processInput(AbstractKmerTableSet.java:135)
            at kmer.AbstractKmerTableSet.process(AbstractKmerTableSet.java:80)
            at jgi.KmerCountExact.process2(KmerCountExact.java:285)
            at jgi.KmerCountExact.process(KmerCountExact.java:259)
            at jgi.KmerCountExact.main(KmerCountExact.java:58)
  • neavemj
    Member
    • Feb 2014
    • 58

    #2
    Hi Lina,

    I think you might be trying to give your forward reads twice to both the in1 and in2 arguments. Maybe your in2 argument should be:

    in2=${R2}

    I guess bbmap checks that the F and R reads have different file names and this is why you get an 'assertion' error.

    Cheers,

    Matt.

    Comment

    Latest Articles

    Collapse

    • GATTACAT
      Reply to Nine Things a Sample Prep Scientist Thinks About Before Sequencing
      by GATTACAT
      Love this - good data definitely starts from good input, and poor input can only give relatively poor data. I particularly like the mention of Nanodrop/absorbance based methods for quantification. It's such a toss up if you'll get an accurate reading or what amounts to a randomly generated number, and a lot of library/sequencing related issues can be traced back to poor quant.
      07-01-2026, 11:43 AM
    • SEQadmin2
      Nine Things a Sample Prep Scientist Thinks About Before Sequencing
      by SEQadmin2


      I’m not a sequencing expert. I’m a purification scientist who uses NGS to evaluate workflows my group develops. With this perspective, we think about the sample first and the NGS workflow second. The sequencer is an exceptionally honest reporter, but it can only report on what you give it, so whether you get clean, interpretable data from an NGS workflow is largely determined before you begin.

      Here are nine questions we think about, in roughly the order they matter, before...
      06-18-2026, 07:11 AM

    ad_right_rmr

    Collapse

    News

    Collapse

    Topics Statistics Last Post
    Started by SEQadmin2, 07-02-2026, 11:08 AM
    0 responses
    25 views
    0 reactions
    Last Post SEQadmin2  
    Started by SEQadmin2, 06-30-2026, 05:37 AM
    0 responses
    23 views
    0 reactions
    Last Post SEQadmin2  
    Started by SEQadmin2, 06-26-2026, 11:10 AM
    0 responses
    23 views
    0 reactions
    Last Post SEQadmin2  
    Started by SEQadmin2, 06-17-2026, 06:09 AM
    0 responses
    55 views
    0 reactions
    Last Post SEQadmin2  
    Working...