[bind10-dev] b10-auth stops responding for several tens of seconds after receiving IXFR

[Yoshitaka Aharen]

Hello, 

We've been running BIND10 1.0.0 in our test environment which retrieves
periodic jp zone transfer into in-memory DB with SQLite3 backend.
Retrieving IXFR consists of 2 parts: SQLite3 update by Xfrin module and
(full) zone reload of Auth modules.
The time required to SQLite3 DB update depends on the number of updated
records and it takes about 2.5 minutes for 70 records of update in
average. It seems to be bit slower, but it should be because the test
environment is old; 2 AMD Opteron 275 processor and 8GB of memory,
1.5Gbps SATA 250GB HDD.
The time required to reload Auth modules is almost constant; it takes
about 100 seconds.
They do not have much difference from BIND10 1.0.0-beta as reported in
January.
Thanks to the work in ticket #1756, Auth modules do not stop responding
while reloading zones from SQLite3 DB. The database file was regenerated
so that the fix is applied.

There is a discussion on Shared Memory Data Source, so we will try the
new model when it will be available.

Thanks,

-- 
Yoshitaka Aharen <aharen at jprs.co.jp>
Japan Registry Services Co., Ltd.