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Gary Lockyer 89041a6d18 lib ldb: lmdb clear stale readers on write txn start 
In use process failures and Bind9 shut downs leave stale entries in the
lmdb reader table.  This can result in lmdb filling it's database file, as
the free list can not be reclaimed due to the stale reader.

In this fix we call mdb_reader_check at the start of each transaction,
to free any stale readers.  As the default maximum number of readers is
127, this should not impact on performance to any great extent.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=14330

Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>

Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Tue Mar 31 01:26:07 UTC 2020 on sn-devel-184
2020-03-31 01:26:07 +00:00
..
addns
lib/addns: clang: Fix 'Assigned value is garbage or undefined'
2019-07-24 21:33:21 +00:00
afs
s3:param: make "servicename" a substituted option
2019-11-27 10:25:37 +00:00
async_req
lib: Try nonblocking writes in writev_send()
2020-03-25 10:41:29 +00:00
audit_logging
audit_logging tests: Fix timezone validation
2020-03-07 06:37:09 +00:00
compression
lib:compression: Fix undefined behavior in lzxpress
2018-11-22 22:13:27 +01:00
crypto
lib:crypto: Add samba_gnutls_weak_crypto()
2020-03-19 20:46:41 +00:00
dbwrap
dbwrap: Don't set rec->value in dbwrap_do_locked()
2019-11-22 23:57:46 +00:00
fuzzing
fuzzing: ndr set global_max_recursion.
2020-02-27 01:02:32 +00:00
krb5_wrap
krb5_wrap: map KRB5_REALM_UNKNOWN to NT_STATUS_NO_SUCH_DOMAIN
2020-02-10 17:59:34 +00:00
ldb
lib ldb: lmdb clear stale readers on write txn start
2020-03-31 01:26:07 +00:00
ldb-samba
pytests: heed assertEquals deprecation warning en-masse
2020-02-07 10:37:37 +00:00
mscat
lib:mscat: Add missing return check for error in dumpsmcat
2019-05-24 06:07:08 +00:00
param
lib:param: Add lp(cfg)_weak_crypto()
2020-03-19 20:46:41 +00:00
printer_driver
lib:printer_driver: Retrieve Class value
2019-01-28 15:44:18 +01:00
pthreadpool
build: Do not build selftest binaries for builds without --enable-selftest
2019-11-22 11:48:59 +00:00
replace
lib: Add macro ARRAY_DEL_ELEMENT()
2020-03-26 14:43:31 +00:00
smbconf
waf: add library dependency for sendfile on Solaris
2019-02-17 13:33:15 +01:00
socket
lib:socket: If returning early, set ifaces
2018-10-28 00:35:34 +02:00
talloc
talloc: Release talloc 2.3.1
2019-11-18 10:11:41 +00:00
tdb
tdbtorture: Use ARRAY_DEL_ELEMENT()
2020-03-26 16:22:00 +00:00
tdb_wrap
tdb_wrap: Use a struct initializer
2015-07-23 14:39:18 +02:00
tdr
lib: Fix 1354521 Unchecked return value
2016-03-01 21:49:44 +01:00
tevent
py3: Remove #define PyInt_FromLong PyLong_FromLong
2020-03-23 19:12:43 +00:00
texpect
texpect: Avoid duplicate sys_write()
2020-01-15 21:25:34 +00:00
torture
lib/torture: protect torture_assert[_goto]() with a do { } while(0) block
2019-09-10 17:38:40 +00:00
tsocket
Rename macro argument s_addr due to it already being defined
2020-02-28 03:08:45 +00:00
util
lib/util/fault.c: Unify printing of the stack trace with the INTERNAL ERROR string
2020-02-27 05:09:44 +00:00
README
various: Remove references to about to be deleted thirdparty/dnspython
2018-12-11 20:07:18 +01:00
wscript_build
Remove 'external' python module support code - use the third_party directory instead.
2015-03-06 04:41:48 +01:00

README 

compression - Various compression algorithms (MSZIP, lzxpress)
popt - Command-line option parsing library
replace - Provides replacements for standard (POSIX, C99) functions 
          not provided by the host platform.
subunit - Utilities and bindings for working with the Subunit test result 
          reporting protocol.
talloc - Hierarchical pool based memory allocator 
tdb - Simple but fast key/value database library, supporting multiple writers
torture - Simple unit testing helper library