Increase the DRb::DRbServer.load_limit size from 50 to 100 MiB

[agrare]

Incrase the DRb::DRbServer.load_limit to 100MiB to handler larger vSphere inventories.

https://bugzilla.redhat.com/show_bug.cgi?id=1573588

[agrare]

@Fryguy I switched from using DRb::DRbServer.default_load_limit() to passing the load limit to start_service so we could use the worker setting set by https://github.com/ManageIQ/manageiq-providers-vmware/pull/245/files#diff-a651af8dd48c191490be1598bebf9a84R253

[agrare]

Setting it just in DRb.start_service doesn't seem to be enough, going to back to setting it at the class level for now even if it won't be configurable.

[JPrause]

@miq-bot add_label blocker

[miq-bot]

@JPrause Cannot apply the following label because they are not recognized: blocker

[JPrause]

@agrare if this PR can be backported, can you add the gaprindashvili/yes label.

[Fryguy]

@JPrause This is a gem, not a plugin...there is no backport, only release

[miq-bot]

Checked commit agrare@fd469e8 with ruby 2.3.3, rubocop 0.52.1, haml-lint 0.20.0, and yamllint 1.10.0
1 file checked, 0 offenses detected
Everything looks fine. 👍

[agrare]

@JPrause the only backport we'll need to do is to fine because the broker was still in manageiq-gems-pending back then. I'll add fine/yes after it is merged.

[JPrause]

@Fryguy my bad,..thanks for the explanation.

[simaishi]

Fine backport (to manageiq-gems-pending repo) details:

$ git log -1
commit 4484d0c66ce54c566090575b3802a048635ba97d
Author: Jason Frey <fryguy9@gmail.com>
Date:   Wed May 2 12:00:34 2018 -0400

    Merge pull request #38 from agrare/bz_1573588_drb_server_load_limit
    
    Increase the DRb::DRbServer.load_limit size from 50 to 100 MiB
    (cherry picked from commit b8d8c9e0e1098b30fefe99d39373acdf1683dce3)
    
    Fixes https://bugzilla.redhat.com/show_bug.cgi?id=1574155

[simaishi]

@miq-bot add_label fine/backported
@miq-bot remove_label fine/yes