High load concurrency issues

[MarkusQ]

There are a few remaining tree corruption race condition issues similar to those fixed in #33 which typically only manifest after sustained periods of heavy load, though having a run of bad luck or doing lots of concurrent deletion of non-trivial trees can also expose them.

I have a proposed fix which I will post as soon as it passes another round of load testing (sometime this evening).

[MarkusQ]

See:

https://github.com/MarkusQ/awesome_nested_set/tree/ans_del_lock

For my proposed resolution.

[parndt]

@MarkusQ what became of this? Would you like to turn it into a pull request?

[MarkusQ]

@parndt --

Yeah, my intent is to turn it into a pull request; sorry about the delay. I'd hit an additional case that I wanted to include, got caught up in some "needs to be done yesterday" work and then hit some health issues. I haven't forgotten it though.
-- M

[parndt]

No problem

[vishakhasawant]

Is this pull request resolved the issue?

[parndt]

Yes, believe so, thanks!