[ViewVC] Annotation of: cvs/AnyEvent-MP/Changes

Revision history for AnyEvent::MP

TODO: testsuite
TODO: intro: maybe simple job pool example?
TODO: intro: mention watchdog...
TODO: maybe disbale warnings by default?
TODO: networkdomains
TODO: group proxy nodes - store group membership for other nodes
TODO: switch to AnyEvent::Log

faq: can't se anything
faq: all is asynch
faq: how to interface to non-perl nodes?

TODO: AnyEvent::MP gets grp_reg, grp_get
TODO: AnyEvent::MP keeps list of all "global" nodes
TODO: Global loaded on demand only, adds grp database and node address database
TODO: transport connects use any global node to find addresses (maybe itself)
TODO: not really

2
        - INCOMPATIBLE CHANGE: the node protocol used by this version is not
          compatible to versions <2 - you have to upgrade all node
        - new "norc" and "force" options for MP::configure to ignore
          or override the rc file.
        - move seed code to Kernel.
        - fixed small typo in MP::Transport.
        - fix (unused) provider-kv (version sometimes missing).
        - reduce the default export list of MP::Kernel.

1.30 Thu Jun 30 11:30:39 CEST 2011
        - connection errors at the right time would kill node
          connections in a bad way (patch by Malcolm Studd).

1.29 Fri May  7 20:13:39 CEST 2010
        - codename "Sadrak".
        - fix error in callback at AnyEvent/MP/Global.pm line 339
          (found by Sadrak).
        - listener-less nodes had trouble sending keepalive
          messages on write timeouts (found by Sadrak).
        - the monitor guard could cause a memleak due
          to autovivification if a mon was cleared after
          the port was gone (analysed by Sadrak).
        - do not overwrite the config file if we couldn't read it
          for some reason (lesson demonstrated by Sadrak).

1.28 Thu Apr  1 21:23:54 CEST 2010
        - accepted connections didn't correctly set up the SRCNODE
          in some cases, leading to intra-node messages (such as monitoring)
          to fail silently (great testcase by Sadrak).

1.27 Sat Mar 20 21:11:16 CET 2010
        - avoid exceptions in the transport code if the connection
          fails during TLS negotiation.
        - delay new address broadcasts in seednodes, to reduce the
          likelyhood of nodes connecting at the same time, leading to
          message loss.
        - improve general message passing efficiency by 8%, and special
          case json framing for a 50% speed increase.
        - add hints how to interface to aemp nodes from other programming
          languages using the aemp protocol in AnyEvent::MP::Transport
          (it can really be quite simple).
        - handle unsupported remote framings more gracefully.

1.26 Wed Dec 30 16:48:37 CET 2009
        - INCOMPATIBLE CHANGE: the high-level node protocol changed,
          all nodes need to upgrade.
        - remote kil's did not work (reported by Eugene Grigoriev).
        - documented monitor_timeout, connect_interval, auth_offer,
          auth_accept, framing_format, autocork and nodelay options
          and make them configurable via bin/aemp.
        - some doc updates.
        - remote kil's were not synchronous to message sends which affected
          nobody, as remote kils were broken.
        - remote mon/unmonitor requests were not synchronous to message
          sends either sometimes, although it likely didnt matter.

1.24 Wed Dec  9 14:59:52 CET 2009
        - codename "the foul egg".
        - increased "unmonitored local port died" message level to 2, so
          it is displayed by default now.
        - generate random seed at configure time, not module loading time,
          so fork&configure works as expected.
        - decreased "seed"-related message priority in Global from 0 (d'oh)
          to 9, as they are not signifcant.
        - new experimental module AnyEvent::MP::DataConn to establish
          additional data connections between nodes.
        - bin/aemp now loads AnyEvent::Watchdog::Util before trying
          to call restart.
        - bin/aemp setcert didn't properly handle the filename argument.
        - removed empty and unused timeout= parameter from protocol greeting.

1.23 Fri Nov  6 18:46:26 CET 2009
        - listener-less nodes were misinformed by their masters about
          the location of new nodes, and therefore didn't connect
          properly in all cases.
        - messages send during node-up processing could sometimes get lost,
          which would hamper global's ability to mesh the network.
        - fixed AnyEvent::MP::Global::grp_reg to return a guard also
          in scalar context.
        - fixed AnyEvent::MP::Kernel::mon_nodes to return a guard also
          in scalar context.
        - try to improve error reporting when automatically loading
          a function - being unable to load a module will now
          stop the process and report the error.

1.22 Sat Oct 17 03:41:47 CEST 2009
        - fix two rcv-bugs: after adding a tagged rcv, the default
          callback would not be used or changed anymore (reported
          by Felix Antonius Wilhelm Ostmann, with apologies for
          taking so long to releae the fix).
        - added Coro::MP introduction to AnyEvent::MP::Intro.
        - add peval function.

1.21 Mon Oct  5 21:58:36 CEST 2009
        - always delay kil messages.
        - remote monitor requests were never cleaned up (found by
          Sadrak and analysed by elmex).
        - move $VERSION to AnyEvent::MP and AnyEvent::MP only.

1.2  Thu Oct  1 22:59:35 CEST 2009
        - fix a rather big bug where message processing could be
          inhibited completely.
        - grp_mon could not return a guard due to a typo.
        - implement primitive aemp shell.
        - do not use bound address as listen length (reported by
          Felix Antonius Wilhelm Ostman).
        - no longer export an undefined "reg" function from AE::MP.
        - the mon_guard return value no longer keeps an additional
          reference to the passed refs.

1.1  Fri Sep 11 04:34:03 CEST 2009
        - bumped the transport protocol to version 1 - sorry, but there
          were too many bugfixes/changes.
        - new function AnyEvent::MP::cal for simple rpc.
        - renamed AnyEvent::MP::Global functions to grp_reg|get|mon.
        - implemented monitoring for Global groups.
        - removed all userspace time-outs from the transport, instead
          rely on tcp retransmit timeouts and tcp keepalive.
        - spawn now delays spawns on the local node artificially, so
          it can return before invoking the init function.
        - break endless recursion between ping-pong ports on the local
          node after ~50 iterations.
        - support JSON-encoded aemp arguments.
        - added aemp restart.
        - support for starting init functions with parameters added.
        - data_format, auth_offer and auth_accept are now configurable, albeit
          not documented.
        - new service: AnyEvent::MP::LogCatcher.
        - rely on perl srand'ing better than we could.
        - try to backport to 5.8.2, unfortunately, recursive dependencies
          rely on Module::Build, which fails at 5.8.7, so YMMV.
        - use a vastly different reseeding strategy.
        - use seed nodes to notify nodes about new nodes.
        - in the case where a ndoe learns new addresses after it tried
          connecting, prefer the new addrseses over the old ones.

1.0  Wed Sep  2 20:40:43 CEST 2009
        - randomise more connection times, but reduce delay to 0.2s (seeds)
          and 0.05s (normal connects).
        - upgrade to and require AnyEvent::Watchdog 1.0.

0.95 Mon Aug 31 22:03:55 CEST 2009
        - tutorial finally covers all the basics, maybe not optimally, but it
          is covered.
        - rename initialise_node to configure and accepts key => value
          pairs for configuration.
        - give aemp a full manpage.
        - bin/aemp now expects comma-separated lists and supports multiple
          subcommands.
        - new aemp eval subcommand.
        - new aemp parent subcommand.
        - nodes get freed when no longer needed.
        - support "*" hostname to specify all local interface addresses
          (without localhost etc.).
        - support "*" port to specify a dynamically-assigned port (which
          is the default now).
        - fix per-transport memory leak.

0.9  Sat Aug 29 18:47:45 CEST 2009
        - tutorial was updated to reflect the current API, but
          does not touch monitoring yet.
        - got rid of noderefs and slave nodes entirely, introduce
          free-text node identifiers and anonymous nodes.
        - document security issues with tls_anon method and introduce
          optional tls_md6_64_256 method.

0.8  Wed Aug 19 07:54:50 CEST 2009
        - added AnyEvent::MP::Global service.
        - support "package::" names as service names.
        - many, many, many bugfixes and tweaks.

0.7  Sat Aug 15 01:18:51 CEST 2009
        - sorry, another major API simplification.
        - greatly improved aemp configuration abilities.
        - introduced profile management.
        - updated exmaples in eg/.
        - added Kernel::snd_to_func.

0.6  Thu Aug 13 03:15:05 CEST 2009
        - do away with .aemp-secret and use .perl-anyevent-mp as json config
          file.
        - introduce bin/aemp to configure nodes.
        - too many changes to describe.

0.4  Sun Aug  9 18:05:49 CEST 2009
        - API should now be really stable :)
        - distinguish between resolved and unresolved noderefs.
        - certificates in .aemp-secret are now supported.
        - change port creation semantics.
        - replace become_xxx by initialise_node.
        - implement AE::MP::spawn.
        - implement transport timeouts, monitoring, reconnecting.
        - simplify and partially document the transport protocol.

0.1  Tue Aug  4 23:07:11 CEST 2009
        - AnyEvent::MP API should be mostly stable by now.

0.02 Sun Aug  2 17:46:43 CEST 2009
        - design has stabilised a bit, sitll unusable.

0.01 Sat Aug  1 11:43:31 CEST 2009
        - dummy upload to reserve namespace on CPAN.

0.0  Thu Jul 30 06:10:15 CEST 2009
        - original version, an AnyEvent::AIO clone.
Revision:	1.118
Committed:	Tue Feb 28 18:37:24 2012 UTC (12 years, 2 months ago) by root
Branch:	MAIN
Changes since 1.117:	+9 -3 lines
Log Message:	* empty log message *
#	User	Rev	Content
1	root	1.1	Revision history for AnyEvent::MP
2
3	root	1.92	TODO: testsuite
4			TODO: intro: maybe simple job pool example?
5			TODO: intro: mention watchdog...
6	root	1.114	TODO: maybe disbale warnings by default?
7	root	1.116	TODO: networkdomains
8			TODO: group proxy nodes - store group membership for other nodes
9			TODO: switch to AnyEvent::Log
10	root	1.92
11	root	1.100	faq: can't se anything
12			faq: all is asynch
13			faq: how to interface to non-perl nodes?
14
15	root	1.118	TODO: AnyEvent::MP gets grp_reg, grp_get
16	root	1.116	TODO: AnyEvent::MP keeps list of all "global" nodes
17			TODO: Global loaded on demand only, adds grp database and node address database
18			TODO: transport connects use any global node to find addresses (maybe itself)
19			TODO: not really
20
21	root	1.118	2
22			- INCOMPATIBLE CHANGE: the node protocol used by this version is not
23			compatible to versions <2 - you have to upgrade all node
24			- new "norc" and "force" options for MP::configure to ignore
25			or override the rc file.
26	root	1.116	- move seed code to Kernel.
27	root	1.118	- fixed small typo in MP::Transport.
28			- fix (unused) provider-kv (version sometimes missing).
29			- reduce the default export list of MP::Kernel.
30	elmex	1.115
31	root	1.114	1.30 Thu Jun 30 11:30:39 CEST 2011
32			- connection errors at the right time would kill node
33			connections in a bad way (patch by Malcolm Studd).
34	root	1.107
35	root	1.113	1.29 Fri May 7 20:13:39 CEST 2010
36			- codename "Sadrak".
37	root	1.111	- fix error in callback at AnyEvent/MP/Global.pm line 339
38			(found by Sadrak).
39	root	1.108	- listener-less nodes had trouble sending keepalive
40	root	1.109	messages on write timeouts (found by Sadrak).
41			- the monitor guard could cause a memleak due
42			to autovivification if a mon was cleared after
43			the port was gone (analysed by Sadrak).
44	root	1.112	- do not overwrite the config file if we couldn't read it
45			for some reason (lesson demonstrated by Sadrak).
46	root	1.108
47	root	1.106	1.28 Thu Apr 1 21:23:54 CEST 2010
48	root	1.111	- accepted connections didn't correctly set up the SRCNODE
49	root	1.106	in some cases, leading to intra-node messages (such as monitoring)
50			to fail silently (great testcase by Sadrak).
51
52	root	1.105	1.27 Sat Mar 20 21:11:16 CET 2010
53	root	1.101	- avoid exceptions in the transport code if the connection
54			fails during TLS negotiation.
55	root	1.102	- delay new address broadcasts in seednodes, to reduce the
56	root	1.103	likelyhood of nodes connecting at the same time, leading to
57	root	1.102	message loss.
58	root	1.104	- improve general message passing efficiency by 8%, and special
59			case json framing for a 50% speed increase.
60	root	1.99	- add hints how to interface to aemp nodes from other programming
61			languages using the aemp protocol in AnyEvent::MP::Transport
62			(it can really be quite simple).
63	root	1.100	- handle unsupported remote framings more gracefully.
64	root	1.99
65	root	1.98	1.26 Wed Dec 30 16:48:37 CET 2009
66	root	1.94	- INCOMPATIBLE CHANGE: the high-level node protocol changed,
67			all nodes need to upgrade.
68	root	1.93	- remote kil's did not work (reported by Eugene Grigoriev).
69	root	1.94	- documented monitor_timeout, connect_interval, auth_offer,
70			auth_accept, framing_format, autocork and nodelay options
71			and make them configurable via bin/aemp.
72	root	1.96	- some doc updates.
73			- remote kil's were not synchronous to message sends which affected
74			nobody, as remote kils were broken.
75	root	1.97	- remote mon/unmonitor requests were not synchronous to message
76			sends either sometimes, although it likely didnt matter.
77	root	1.92
78	root	1.91	1.24 Wed Dec 9 14:59:52 CET 2009
79	root	1.87	- codename "the foul egg".
80			- increased "unmonitored local port died" message level to 2, so
81			it is displayed by default now.
82	root	1.89	- generate random seed at configure time, not module loading time,
83			so fork&configure works as expected.
84	root	1.88	- decreased "seed"-related message priority in Global from 0 (d'oh)
85			to 9, as they are not signifcant.
86	root	1.85	- new experimental module AnyEvent::MP::DataConn to establish
87			additional data connections between nodes.
88	root	1.84	- bin/aemp now loads AnyEvent::Watchdog::Util before trying
89			to call restart.
90	elmex	1.86	- bin/aemp setcert didn't properly handle the filename argument.
91	root	1.90	- removed empty and unused timeout= parameter from protocol greeting.
92	root	1.44
93	root	1.82	1.23 Fri Nov 6 18:46:26 CET 2009
94	root	1.80	- listener-less nodes were misinformed by their masters about
95			the location of new nodes, and therefore didn't connect
96			properly in all cases.
97	root	1.81	- messages send during node-up processing could sometimes get lost,
98			which would hamper global's ability to mesh the network.
99			- fixed AnyEvent::MP::Global::grp_reg to return a guard also
100			in scalar context.
101			- fixed AnyEvent::MP::Kernel::mon_nodes to return a guard also
102			in scalar context.
103	root	1.79	- try to improve error reporting when automatically loading
104			a function - being unable to load a module will now
105			stop the process and report the error.
106	elmex	1.78
107	root	1.77	1.22 Sat Oct 17 03:41:47 CEST 2009
108			- fix two rcv-bugs: after adding a tagged rcv, the default
109			callback would not be used or changed anymore (reported
110			by Felix Antonius Wilhelm Ostmann, with apologies for
111			taking so long to releae the fix).
112	root	1.76	- added Coro::MP introduction to AnyEvent::MP::Intro.
113	root	1.75	- add peval function.
114
115	root	1.74	1.21 Mon Oct 5 21:58:36 CEST 2009
116	root	1.72	- always delay kil messages.
117	root	1.74	- remote monitor requests were never cleaned up (found by
118			Sadrak and analysed by elmex).
119			- move $VERSION to AnyEvent::MP and AnyEvent::MP only.
120	root	1.72
121	root	1.71	1.2 Thu Oct 1 22:59:35 CEST 2009
122	root	1.70	- fix a rather big bug where message processing could be
123			inhibited completely.
124	root	1.65	- grp_mon could not return a guard due to a typo.
125	root	1.66	- implement primitive aemp shell.
126	root	1.67	- do not use bound address as listen length (reported by
127			Felix Antonius Wilhelm Ostman).
128	root	1.68	- no longer export an undefined "reg" function from AE::MP.
129	root	1.69	- the mon_guard return value no longer keeps an additional
130			reference to the passed refs.
131	root	1.65
132	root	1.64	1.1 Fri Sep 11 04:34:03 CEST 2009
133	root	1.63	- bumped the transport protocol to version 1 - sorry, but there
134			were too many bugfixes/changes.
135			- new function AnyEvent::MP::cal for simple rpc.
136	root	1.49	- renamed AnyEvent::MP::Global functions to grp_reg\|get\|mon.
137	root	1.63	- implemented monitoring for Global groups.
138	root	1.50	- removed all userspace time-outs from the transport, instead
139			rely on tcp retransmit timeouts and tcp keepalive.
140	root	1.48	- spawn now delays spawns on the local node artificially, so
141			it can return before invoking the init function.
142	root	1.55	- break endless recursion between ping-pong ports on the local
143			node after ~50 iterations.
144	root	1.47	- support JSON-encoded aemp arguments.
145	root	1.51	- added aemp restart.
146	root	1.52	- support for starting init functions with parameters added.
147	root	1.53	- data_format, auth_offer and auth_accept are now configurable, albeit
148			not documented.
149	root	1.54	- new service: AnyEvent::MP::LogCatcher.
150	root	1.58	- rely on perl srand'ing better than we could.
151			- try to backport to 5.8.2, unfortunately, recursive dependencies
152			rely on Module::Build, which fails at 5.8.7, so YMMV.
153			- use a vastly different reseeding strategy.
154	root	1.61	- use seed nodes to notify nodes about new nodes.
155	root	1.63	- in the case where a ndoe learns new addresses after it tried
156			connecting, prefer the new addrseses over the old ones.
157	root	1.46
158	root	1.45	1.0 Wed Sep 2 20:40:43 CEST 2009
159	root	1.44	- randomise more connection times, but reduce delay to 0.2s (seeds)
160			and 0.05s (normal connects).
161	root	1.45	- upgrade to and require AnyEvent::Watchdog 1.0.
162	root	1.36
163	root	1.42	0.95 Mon Aug 31 22:03:55 CEST 2009
164	root	1.43	- tutorial finally covers all the basics, maybe not optimally, but it
165			is covered.
166	root	1.38	- rename initialise_node to configure and accepts key => value
167			pairs for configuration.
168	root	1.33	- give aemp a full manpage.
169	root	1.30	- bin/aemp now expects comma-separated lists and supports multiple
170			subcommands.
171	root	1.31	- new aemp eval subcommand.
172	root	1.34	- new aemp parent subcommand.
173	root	1.31	- nodes get freed when no longer needed.
174	root	1.35	- support "*" hostname to specify all local interface addresses
175			(without localhost etc.).
176	root	1.38	- support "*" port to specify a dynamically-assigned port (which
177			is the default now).
178	root	1.32	- fix per-transport memory leak.
179	root	1.30
180	root	1.29	0.9 Sat Aug 29 18:47:45 CEST 2009
181			- tutorial was updated to reflect the current API, but
182	root	1.43	does not touch monitoring yet.
183	root	1.24	- got rid of noderefs and slave nodes entirely, introduce
184	root	1.25	free-text node identifiers and anonymous nodes.
185	root	1.26	- document security issues with tls_anon method and introduce
186			optional tls_md6_64_256 method.
187	root	1.23
188			0.8 Wed Aug 19 07:54:50 CEST 2009
189	root	1.22	- added AnyEvent::MP::Global service.
190	root	1.20	- support "package::" names as service names.
191	root	1.21	- many, many, many bugfixes and tweaks.
192	root	1.20
193	root	1.19	0.7 Sat Aug 15 01:18:51 CEST 2009
194			- sorry, another major API simplification.
195	root	1.17	- greatly improved aemp configuration abilities.
196			- introduced profile management.
197	root	1.18	- updated exmaples in eg/.
198			- added Kernel::snd_to_func.
199	root	1.16
200	root	1.14	0.6 Thu Aug 13 03:15:05 CEST 2009
201			- do away with .aemp-secret and use .perl-anyevent-mp as json config
202	root	1.13	file.
203	root	1.14	- introduce bin/aemp to configure nodes.
204	root	1.15	- too many changes to describe.
205	root	1.13
206	root	1.12	0.4 Sun Aug 9 18:05:49 CEST 2009
207	root	1.11	- API should now be really stable :)
208	root	1.8	- distinguish between resolved and unresolved noderefs.
209	root	1.6	- certificates in .aemp-secret are now supported.
210	root	1.9	- change port creation semantics.
211			- replace become_xxx by initialise_node.
212	root	1.10	- implement AE::MP::spawn.
213	root	1.11	- implement transport timeouts, monitoring, reconnecting.
214			- simplify and partially document the transport protocol.
215	root	1.6
216	root	1.5	0.1 Tue Aug 4 23:07:11 CEST 2009
217	root	1.6	- AnyEvent::MP API should be mostly stable by now.
218	root	1.5
219	root	1.3	0.02 Sun Aug 2 17:46:43 CEST 2009
220			- design has stabilised a bit, sitll unusable.
221
222	root	1.2	0.01 Sat Aug 1 11:43:31 CEST 2009
223			- dummy upload to reserve namespace on CPAN.
224
225	root	1.1	0.0 Thu Jul 30 06:10:15 CEST 2009
226			- original version, an AnyEvent::AIO clone.