Ondřej Kuzník
b49f51879f
Implement client pending operation limits
2020-11-17 17:58:15 +00:00
Ondřej Kuzník
f832024e90
Straighten up client pending op tracking
2020-11-17 17:58:15 +00:00
Ondřej Kuzník
dc1961cb15
Epoch based memory reclamation
...
Similar to the algorithm presented in
https://www.cl.cam.ac.uk/techreports/UCAM-CL-TR-579.pdf
Not completely lock-free at the moment. Also the problems with epoch
based memory reclamation are still present - a thread actively observing
an epoch getting stuck will prevent LloadConnections and LloadOperations
being freed, potentially running out of memory.
2020-11-17 17:58:15 +00:00
Ondřej Kuzník
aab6af1c4e
Switch to LDAP_OTHER when handling a lost upstream.
...
LDAP_UNAVAILABLE signals "the server is shutting down or a subsystem
necessary to complete the operation is offline", so intelligent clients
tend to infer the connection will not be usable any more, which is not
the case here.
2020-11-17 17:58:15 +00:00
Ondřej Kuzník
81ead4a5f4
Fix races with backend_retry
2020-11-17 17:58:15 +00:00
Ondřej Kuzník
c087244265
SASL and proxyauthz tests
2020-11-17 17:58:15 +00:00
Ondřej Kuzník
bd3da7322a
Add TLS tests
2020-11-17 17:58:15 +00:00
Ondřej Kuzník
34ddaa5fc7
Tests for monitoring support
2020-11-17 17:58:15 +00:00
Ondřej Kuzník
78f25a3c91
A failed cn=config ADD needs to be handled
2020-11-17 17:58:15 +00:00
Ondřej Kuzník
4b3d21146b
Introduce SASL support for upstream connections
2020-11-17 17:58:15 +00:00
Ondřej Kuzník
50a021a387
Do not enforce a valid ld in lutil_sasl_interact
2020-11-17 17:58:15 +00:00
Ondřej Kuzník
05e0906f8b
Fix backend starttls= setting being ignored
2020-11-17 17:58:15 +00:00
Ondřej Kuzník
9444dfc991
Simplify pause handling
...
Gets rid of a race where unpause+pause fired in a quick succession would
miss the event_base_loopbreak() call.
2020-11-17 17:58:15 +00:00
Ondřej Kuzník
25a4d684fc
Permit lloadd to share slapd TLS context
2020-11-17 17:58:15 +00:00
Nadezhda Ivanova
ef0028e586
Initial implementation of cn=config testing script
2020-11-17 17:58:15 +00:00
Ondřej Kuzník
63efcd63eb
Reuse connection walking in monitor for upstreams too
2020-11-17 17:58:15 +00:00
Ondřej Kuzník
3bd2d7483e
Reuse connection_walk for client matters
2020-11-17 17:58:15 +00:00
Ondřej Kuzník
b4f43ed8e1
Refactor backend reset
...
Reuse the connection walking facility in timeout management.
2020-11-17 17:58:15 +00:00
Ondřej Kuzník
638f8a2cbc
Tighten checks on retry management
2020-11-17 17:58:15 +00:00
Ondřej Kuzník
2a813cb06d
Clean up backend_retry and its callers.
2020-11-17 17:58:15 +00:00
Ondřej Kuzník
241f65b9e0
Fix a race in managing b_dns_req
2020-11-17 17:58:15 +00:00
Nadezhda Ivanova
f4a2fdd400
Fix a new backend not being operational if added via cn=config
2020-11-17 17:58:15 +00:00
Ondřej Kuzník
00806dd32a
libevent 2.0 support
2020-11-17 17:58:15 +00:00
Ondřej Kuzník
513659c610
Document config behaviour
2020-11-17 17:58:15 +00:00
Ondřej Kuzník
f1ea9da3a0
Reorganise listener support in cn=config and module startup
2020-11-17 17:58:15 +00:00
Ondřej Kuzník
bd7a6f67de
Introduce lload_open_new_listener
2020-11-17 17:58:15 +00:00
Ondřej Kuzník
757c8beda7
Switch to ldap_parse_url_ext
...
This simplifies port parsing in the end. Also pass the url to
ldap_open_listener in anticipation of incremental listener config.
2020-11-17 17:58:15 +00:00
Ondřej Kuzník
93d20459f1
Make io-threads modification startup-only
2020-11-17 17:58:15 +00:00
Ondřej Kuzník
db3961f489
Record connect task to allow canceling it
2020-11-17 17:58:15 +00:00
Ondřej Kuzník
6b10c2988e
Record pending DNS resolution to be able to cancel
2020-11-17 17:58:15 +00:00
Ondřej Kuzník
b039e7c1b0
Keep a reference around for the bind task
2020-11-17 17:58:15 +00:00
Ondřej Kuzník
0314f95d7f
Work around libevent base not waking up on shutdown
2020-11-17 17:58:15 +00:00
Ondřej Kuzník
db939eeb86
Protect operation when abandoning
2020-11-17 17:58:15 +00:00
Ondřej Kuzník
07401e5829
Implement runtime monitor (un)registration
...
Unregistration is a hack and we shoould either make the subsystems into
an entry (if monitor allows subentry generation) or implement subsystem
unregistration in back-monitor.
2020-11-17 17:58:15 +00:00
Ondřej Kuzník
1ea5ee1f01
Do not unlock upstream without referencing its dying ops
2020-11-17 17:58:15 +00:00
Ondřej Kuzník
b1c098ad76
Module shutdown support
2020-11-17 17:58:15 +00:00
Ondřej Kuzník
05d6aae40f
Rework lloadd startup
2020-11-17 17:58:15 +00:00
Ondřej Kuzník
362f16479a
Deal with no backends being configured
2020-11-17 17:58:14 +00:00
Ondřej Kuzník
4c355deb3d
Record the backend name
2020-11-17 17:58:14 +00:00
Ondřej Kuzník
3a6b399580
Reflect backend URI change in cn=monitor
2020-11-17 17:58:14 +00:00
Nadezhda Ivanova
bace795984
Enable dynamic configuration
2020-11-17 17:58:14 +00:00
Ondřej Kuzník
70ae4af60a
Fix interaction of graceful connection closing and SASL bind support
2020-11-17 17:58:14 +00:00
Ondřej Kuzník
d954216f93
Change log level for unsolicited response
2020-11-17 17:58:14 +00:00
Ondřej Kuzník
edfb3d73d6
Fix operation status tracking.
...
An operation is rejected iff it has to be dropped before we can find an
upstream for it (unless we handle it ourselves, that is). At that point
it is failed unless completed successfully.
This makes a difference for multi-stage binds which alternate between
'failed' (we are waiting on a server response) and 'completed' (server
did what we asked them to, waiting on client to continue).
2020-11-17 17:58:14 +00:00
Ondřej Kuzník
cfe9065824
Introduce infra to handle config changes
2020-11-17 17:58:14 +00:00
Ondřej Kuzník
a7f8f58a63
expose task functions for invalidation
2020-11-17 17:58:14 +00:00
Ondřej Kuzník
bf9f99dd88
Split backend destruction from resetting it
2020-11-17 17:58:14 +00:00
Ondřej Kuzník
7f22bac4ac
Introduce a new connection status - gentle shutdown
2020-11-17 17:58:14 +00:00
Ondřej Kuzník
ca646cd02d
Fix operation counts
...
Trying to abandon an operation does not automatically make it completed,
it might have failed already but we're just racing to reach the client
to record that.
2020-11-17 17:58:14 +00:00
Ondřej Kuzník
bea9bfb33d
Move op counting to operation_init
2020-11-17 17:58:14 +00:00
