“WT_CONNECTION.open_session: only configured to support 20020”

Frankly speaking, the explanation provided in SERVER-30421 and SERVER-17364 is a bit vague and “hand wavy” to me but at least there are steps that could help mitigate it:

  1. Decrease idle cursor timeout (default value is 10 minutes):
    In mongodb.conf:

      cursorTimeoutMillis: 30000

    Using mongo cli:

    use admin
    db.runCommand({setParameter:1, cursorTimeoutMillis: 30000})
  2. Increase session_max:
          configString: "session_max=40000"

Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong>