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

    • SEQadmin2
      Advanced Sequencing Platforms Tackle Neuroscience’s Toughest Genomics Problems
      by SEQadmin2



      Genomics studies in neuroscience face a special challenge due to the brain’s complexity and scarcity of samples. Mapping changes in cell type and state using conventional next-generation sequencing methods remains challenging. Advances in technologies like single-cell sequencing, spatial transcriptomics, and long-read sequencing have opened the door to deeper studies of the brain and diseases like Alzheimer’s, amyotrophic lateral sclerosis (ALS), and schizophrenia.
      ...
      07-09-2026, 11:10 AM
    • SEQadmin2
      Cancer Drug Resistance: The Lingering Barrier to Rising Survival
      by SEQadmin2



      Cancer survival rates have significantly increased in the last few decades in the United States, reaching a combined 70% 5-year survival rate by 2021. Behind this number, there are years of research to find new therapies, drug targets, and early detection methods. But there is one core challenge that keeps slowing down these advances, and it’s about drug resistance.

      There is no single reason why many patients don’t respond to treatment as expected. Cancer is...
      07-08-2026, 05:17 AM
    • 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

    ad_right_rmr

    Collapse

    News

    Collapse

    Topics Statistics Last Post
    Started by SEQadmin2, 07-13-2026, 10:26 AM
    0 responses
    24 views
    0 reactions
    Last Post SEQadmin2  
    Started by SEQadmin2, 07-09-2026, 10:04 AM
    0 responses
    33 views
    0 reactions
    Last Post SEQadmin2  
    Started by SEQadmin2, 07-08-2026, 10:08 AM
    0 responses
    21 views
    0 reactions
    Last Post SEQadmin2  
    Started by SEQadmin2, 07-07-2026, 11:05 AM
    0 responses
    34 views
    0 reactions
    Last Post SEQadmin2  
    Working...