Maxim,
Below are some pointers into the code you asked about. Let me know if
you have any questions about the code.
The following tablet server code puts a task on a thread pool for a batch scan.
Hi Adam,
Thank you for the list!
In my case, there is only one client which runs a single query which I'm
tracing, so I hope the thread pools have free threads.
I'd like to look at the code which runs in the scope of the "table read
ahead". Do you know where I should look at? I tried to search
Hi Maxim,
What you're seeing is an artifact of the threading model that Accumulo
uses. When you launch a query, Accumulo tablet servers will coordinate RPCs
via Thrift in one thread pool (which grows unbounded) and queue up scans
(rfile lookups, decryption/decompression, iterators, etc.) in
