Problem:
ES Region going into a "Not Responding" state and several of the following errors are seen in the ES console log:
CASKC0023E Unable to locate asee Service Request Handler for request
Solution:
The CASKC0023E message can occur when an incorrect url is passed in to the ES Web Services listener, and we have seen this issue occur when security tools like vulnerability scanners fire large numbers of invalid HTTP requests to the listeners and cause SEPs in Enterprise Server to hang and regions to go into a "Not Responding" state.
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