Fixed #497: fixed reading task-host

[grtjn]

Self-test against ML8 runs clean. #497/#500

[dmcassel]

@ml.server may be "localhost", which is good enough to direct traffic to MarkLogic, but xdmp:host("localhost") will fail.

XDMP-NOSUCHHOST: xdmp:host("localhost") -- No such host localhost

[grtjn]

Hmm, good one. We need something smarter, just not sure what. I'd rather not default to bootstrap-host or first host in group, to keep the option to have a schedule on all hosts..

[dmcassel]

Localhost is a special case. I think if we'd be safe guessing that "localhost" => xdmp:host().

[grtjn]

Yeah, but the assumption is actually all wrong. @ml.server doesn't contain a host-name at all, but something that happens to resolve to the MarkLogic host ip against the DNS or the local hosts file..

[dmcassel]

Agreed. Sometimes those will match, sometimes not.

[peetkes]

Works fine by me, except for the placeholder in the sample config. You should be able to pick any of the hosts in the group in a convenient way @ml.group-hosts[n]

[grtjn]

I think I'll split this PR. Peet's suggestion could be useful, but needs more thought..

[dmcassel]

@grtjn should we close this PR for now?

[grtjn]

Not needed. I'll just take out the configs, and continue discussion about it in #500..

[dmcassel]

@grtjn what's the state of this PR? Still valid?

[grtjn]

Yes, should be ready to merge. I took out the tricky part with host names (#500)..