GAE creates a lot of new instances. Is it a breakdown?

[Marek Raszewski via StackOverflow]

GEA creates a lot o new instances and I am not able to stop them. Please help. Could you give me any feedback if this happens only on my environment. In the end it kills my db (too many connections) but the reason is infinitive scaling.

appengine-web.xml

  <instance-class>F4_1G</instance-class>
  <automatic-scaling>
    <min-idle-instances>8</min-idle-instances>
    <max-idle-instances>10</max-idle-instances>
    <min-pending-latency>15s</min-pending-latency>
    <max-pending-latency>15s</max-pending-latency>
  </automatic-scaling>

<threadsafe>false</threadsafe>

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