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Posted to dev@uima.apache.org by "Jim Challenger (JIRA)" <de...@uima.apache.org> on 2015/02/17 20:07:12 UTC
[jira] [Created] (UIMA-4252) DUCC: SM Calculeates negative number
of service instances to add!
Jim Challenger created UIMA-4252:
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Summary: DUCC: SM Calculeates negative number of service instances to add!
Key: UIMA-4252
URL: https://issues.apache.org/jira/browse/UIMA-4252
Project: UIMA
Issue Type: Bug
Components: DUCC
Affects Versions: 1.1.0-Ducc
Reporter: Jim Challenger
Assignee: Jim Challenger
Fix For: 2.0.0-Ducc
If a service is stopped and then started IMMEDIATELY, there will be instances still alive that are marked to stop because stopping (and starting) is somewhat time consuming. If this happens, the PingDriver is doing Bad Math and mis-computing the number of actual instances alive, resulting in a negative number. This has the ultimate effect of spawing double (or maybe more) instances.
Fix is to take Math.max(0, instances) in the PingDriver.
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