Here is a list of frequently asked questions.

  • Why does my Giraph job randomly fail after hundreds of supersteps?
    • In Hadoop onwards, there is a limit on the number of counters one can use, which is set to 120 by default. This limit restricts the number of iterations/supersteps possible in Giraph. This limit can be increased by setting a parameter mapreduce.job.counters.limit in job tracker's config file mapred-site.xml.