3524. [func] Added an alternate statistics channel in JSON format,
when the server is built with the json-c library:
http://[address]:[port]/json. [RT #32630]
3406. [bug] mem.c: Fix compilation errors when building with
ISC_MEM_TRACKLINES or ISC_MEMPOOL_NAMES disabled.
Also, ISC_MEM_DEBUG is no longer optional. [RT #31559]
This includes the following changes:
3326. [func] Added task list statistics: task model, worker
threads, quantum, tasks running, tasks ready.
[RT #27678]
3325. [func] Report cache statistics: memory use, number of
nodes, number of hash buckets, hit and miss counts.
[RT #27056]
3324. [test] Add better tests for ADB stats [RT #27057]
3323. [func] Report the number of buckets the resolver is using.
[RT #27020]
3322. [func] Monitor the number of active TCP and UDP dispatches.
[RT #27055]
3321. [func] Monitor the number of recursive fetches and the
number of open sockets, and report these values in
the statistics channel. [RT #27054]
3320. [func] Added support for monitoring of recursing client
count. [RT #27009]
3319. [func] Added support for monitoring of ADB entry count and
hash size. [RT #27057]
memory conditions. Without this fix a DNS cache DB or
ADB could incorrectly stay in an over memory state,
effectively refusing further caching, which
subsequently made a BIND 9 caching server unworkable.
This fix prevents this problem from happening by
polling the state of the memory context, rather than
making a copy of the state, which appeared to cause
a race. This is a "workaround" in that it doesn't
solve the possible race per se, but several experiments
proved this change solves the symptom. Also, the
polling overhead hasn't been reported to be an issue.
This bug should only affect a caching server that
specifies a finite max-cache-size. It's also quite
likely that the bug happens only when enabling threads,
but it's not confirmed yet. [RT #21818]
- define BIND9 in config.h.win32
- fix problems in mem.h caused by the win32 preprocessor failing to
expand macros used within macros
- silence a win32 compiler warning in hip_55.c
2156. [bug] Fix node reference leaks in lookup.c:lookup_find(),
resolver.c:validated() and resolver.c:cache_name().
Fix a memory leak in rbtdb.c:free_noqname().
Make lookup.c:lookup_find() robust against
event leaks. [RT #16685]
