Andrew Purtell commented on HBASE-16751:

I did a site build of the patch and reviewed the changes. They look good, but 
while reading this part:
Optionally, split the call queues into separate read and write queues for 
differentiated service. The parameter hbase.ipc.server.callqueue.handler.factor 
specifies the number of call queues:

0 means a single shared queue

1 means one queue for each handler.
I think we want to make a small change here [~pconrad]. This isn't a binary 
configuration parameter. That can be confusing. We should add another bullet 
point that says: 
A value between 0 and 1 allocates the number of queues proportionally to the 
number of handlers. For instance, a value of .5 shares one queue between each 
two handlers.
If you agree with this change I can just go ahead and make it while committing. 

> Add tuning information to HBase Book
> ------------------------------------
>                 Key: HBASE-16751
>                 URL: https://issues.apache.org/jira/browse/HBASE-16751
>             Project: HBase
>          Issue Type: New Feature
>            Reporter: Peter Conrad
>            Assignee: Peter Conrad
>            Priority: Minor
>         Attachments: HBASE-16751.patch, HBASE-16751.patch

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