make a call to trigger retrieval

[jodysalt]

A the moment if the IDS gets rebooted there is no way pollcat will trigger the IDS to do a retrieval.

I recommend you use an isPrepared call rather than chunked getStatus:

https://repo.icatproject.org/site/ids/server/1.7.0/miredot/index.html#-479488323

[stuartpullinger]

Furthermore, the isPrepared call should be faster to return since icatproject/ids.server#64 was fixed. Propose to try the isPrepared call and fall back to the chunked calls to getStatus if it fails/times out.