Client backpressure

[ivankelly]

JIRA: https://issues.apache.org/jira/browse/BOOKKEEPER-36

Reporter: Flavio Junqueira @fpj

The way we currently throttle on the client is by counting the number of outstanding operation on LedgerHandle, and having the application select what an appropriate value is. This is not a good way of doing it because the application has to guess what a good value is. We need to implement some form of backpressure instead to make sure we throttle only when the system is saturated.

Comments from JIRA

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Flavio Junqueira 2011-10-10T21:51:23.375+0000

We might want to do it by bytes instead of number of requests. Also, throttling is currently done per ledger handle and not overall.

[dlg99]

I think this is covered in fix to #1086 see #1088

[sijie]

As commented above, this has been covered and fixed.