[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: listener-scopes (10.0.0.1:4040@vpn) and connect-scopes ("vpn,public")

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

TODO: update docs
TODO: switch to AnyEvent::Log
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: maybe check g_proto version, if sent? how about node protocol?
TODO: connect instantly in node->connect, not with timer-0
TODO: maybe switch to md5+sha1+sha256 or so...
TODO: up_nodes for aemp-trace replace by rpc call?
2
        - INCOMPATIBLE CHANGE: the node protocol used by this version is not
          compatible to versions <2 - you have to upgrade all nodes.
        - INCOMPATIBLE CHANGE: many APIs have changed, see the section
          "PORTING FROM VERSION 1" in the AnyEvent::MP manpage for details.
        - AnyEvent::MP::Global is now optional - only seed nodes autoload it
          and create a fully-meshed network with each other, normal nodes only
          have to connect to seed nodes, other connections are on-demand.
        - 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.
        - reduced various random delays to zero, as they
          are hopefully no longer needed with the new global
          protocol.
        - implement a secure mode that can suppress remote code execution
          requests on a per-node/per-request basis.
        - do not use GMP for generating alphanumeric strings even when
          available, use a more tricky algorithm instead.
        - anonymous node names and remote port names have been shortened
          considerably.
        - aemp shell now supports "package" selection and offers an
          $ECHO port you cna send messages to.
        - rely on perl rand() instead of using /dev/urandom when available, as
          hopefully it is random enough.
        - aemp shell no longer leaks one port per command.
        - nodenames can contain %-escapes such as %n or %u.
        - aemp now uses aemp/%n/%u as nodename.
        - known_nodes is gone, it has little value, use all_nodes as
          replacement.
        - lots of small change and improvements.

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:	1.126
Committed:	Sat Mar 3 20:35:10 2012 UTC (12 years, 2 months ago) by root
Branch:	MAIN
Changes since 1.125:	+2 -1 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	1.121	TODO: listener-scopes (10.0.0.1:4040@vpn) and connect-scopes ("vpn,public")
8	root	1.92
9	root	1.100	faq: can't se anything
10			faq: all is asynch
11			faq: how to interface to non-perl nodes?
12
13	root	1.121	TODO: update docs
14			TODO: switch to AnyEvent::Log
15	root	1.116	TODO: Global loaded on demand only, adds grp database and node address database
16			TODO: transport connects use any global node to find addresses (maybe itself)
17	root	1.121	TODO: maybe check g_proto version, if sent? how about node protocol?
18			TODO: connect instantly in node->connect, not with timer-0
19			TODO: maybe switch to md5+sha1+sha256 or so...
20	root	1.122	TODO: up_nodes for aemp-trace replace by rpc call?
21	root	1.118	2
22			- INCOMPATIBLE CHANGE: the node protocol used by this version is not
23	root	1.121	compatible to versions <2 - you have to upgrade all nodes.
24	root	1.124	- INCOMPATIBLE CHANGE: many APIs have changed, see the section
25			"PORTING FROM VERSION 1" in the AnyEvent::MP manpage for details.
26	root	1.121	- AnyEvent::MP::Global is now optional - only seed nodes autoload it
27			and create a fully-meshed network with each other, normal nodes only
28			have to connect to seed nodes, other connections are on-demand.
29	root	1.118	- new "norc" and "force" options for MP::configure to ignore
30			or override the rc file.
31	root	1.116	- move seed code to Kernel.
32	root	1.118	- fixed small typo in MP::Transport.
33			- fix (unused) provider-kv (version sometimes missing).
34			- reduce the default export list of MP::Kernel.
35	root	1.120	- reduced various random delays to zero, as they
36			are hopefully no longer needed with the new global
37			protocol.
38	root	1.126	- implement a secure mode that can suppress remote code execution
39			requests on a per-node/per-request basis.
40	root	1.122	- do not use GMP for generating alphanumeric strings even when
41			available, use a more tricky algorithm instead.
42	root	1.121	- anonymous node names and remote port names have been shortened
43			considerably.
44	root	1.122	- aemp shell now supports "package" selection and offers an
45			$ECHO port you cna send messages to.
46			- rely on perl rand() instead of using /dev/urandom when available, as
47			hopefully it is random enough.
48	root	1.123	- aemp shell no longer leaks one port per command.
49	root	1.125	- nodenames can contain %-escapes such as %n or %u.
50			- aemp now uses aemp/%n/%u as nodename.
51	root	1.124	- known_nodes is gone, it has little value, use all_nodes as
52			replacement.
53	root	1.125	- lots of small change and improvements.
54	elmex	1.115
55	root	1.114	1.30 Thu Jun 30 11:30:39 CEST 2011
56			- connection errors at the right time would kill node
57			connections in a bad way (patch by Malcolm Studd).
58	root	1.107
59	root	1.113	1.29 Fri May 7 20:13:39 CEST 2010
60			- codename "Sadrak".
61	root	1.111	- fix error in callback at AnyEvent/MP/Global.pm line 339
62			(found by Sadrak).
63	root	1.108	- listener-less nodes had trouble sending keepalive
64	root	1.109	messages on write timeouts (found by Sadrak).
65			- the monitor guard could cause a memleak due
66			to autovivification if a mon was cleared after
67			the port was gone (analysed by Sadrak).
68	root	1.112	- do not overwrite the config file if we couldn't read it
69			for some reason (lesson demonstrated by Sadrak).
70	root	1.108
71	root	1.106	1.28 Thu Apr 1 21:23:54 CEST 2010
72	root	1.111	- accepted connections didn't correctly set up the SRCNODE
73	root	1.106	in some cases, leading to intra-node messages (such as monitoring)
74			to fail silently (great testcase by Sadrak).
75
76	root	1.105	1.27 Sat Mar 20 21:11:16 CET 2010
77	root	1.101	- avoid exceptions in the transport code if the connection
78			fails during TLS negotiation.
79	root	1.102	- delay new address broadcasts in seednodes, to reduce the
80	root	1.103	likelyhood of nodes connecting at the same time, leading to
81	root	1.102	message loss.
82	root	1.104	- improve general message passing efficiency by 8%, and special
83			case json framing for a 50% speed increase.
84	root	1.99	- add hints how to interface to aemp nodes from other programming
85			languages using the aemp protocol in AnyEvent::MP::Transport
86			(it can really be quite simple).
87	root	1.100	- handle unsupported remote framings more gracefully.
88	root	1.99
89	root	1.98	1.26 Wed Dec 30 16:48:37 CET 2009
90	root	1.94	- INCOMPATIBLE CHANGE: the high-level node protocol changed,
91			all nodes need to upgrade.
92	root	1.93	- remote kil's did not work (reported by Eugene Grigoriev).
93	root	1.94	- documented monitor_timeout, connect_interval, auth_offer,
94			auth_accept, framing_format, autocork and nodelay options
95			and make them configurable via bin/aemp.
96	root	1.96	- some doc updates.
97			- remote kil's were not synchronous to message sends which affected
98			nobody, as remote kils were broken.
99	root	1.97	- remote mon/unmonitor requests were not synchronous to message
100			sends either sometimes, although it likely didnt matter.
101	root	1.92
102	root	1.91	1.24 Wed Dec 9 14:59:52 CET 2009
103	root	1.87	- codename "the foul egg".
104			- increased "unmonitored local port died" message level to 2, so
105			it is displayed by default now.
106	root	1.89	- generate random seed at configure time, not module loading time,
107			so fork&configure works as expected.
108	root	1.88	- decreased "seed"-related message priority in Global from 0 (d'oh)
109			to 9, as they are not signifcant.
110	root	1.85	- new experimental module AnyEvent::MP::DataConn to establish
111			additional data connections between nodes.
112	root	1.84	- bin/aemp now loads AnyEvent::Watchdog::Util before trying
113			to call restart.
114	elmex	1.86	- bin/aemp setcert didn't properly handle the filename argument.
115	root	1.90	- removed empty and unused timeout= parameter from protocol greeting.
116	root	1.44
117	root	1.82	1.23 Fri Nov 6 18:46:26 CET 2009
118	root	1.80	- listener-less nodes were misinformed by their masters about
119			the location of new nodes, and therefore didn't connect
120			properly in all cases.
121	root	1.81	- messages send during node-up processing could sometimes get lost,
122			which would hamper global's ability to mesh the network.
123			- fixed AnyEvent::MP::Global::grp_reg to return a guard also
124			in scalar context.
125			- fixed AnyEvent::MP::Kernel::mon_nodes to return a guard also
126			in scalar context.
127	root	1.79	- try to improve error reporting when automatically loading
128			a function - being unable to load a module will now
129			stop the process and report the error.
130	elmex	1.78
131	root	1.77	1.22 Sat Oct 17 03:41:47 CEST 2009
132			- fix two rcv-bugs: after adding a tagged rcv, the default
133			callback would not be used or changed anymore (reported
134			by Felix Antonius Wilhelm Ostmann, with apologies for
135			taking so long to releae the fix).
136	root	1.76	- added Coro::MP introduction to AnyEvent::MP::Intro.
137	root	1.75	- add peval function.
138
139	root	1.74	1.21 Mon Oct 5 21:58:36 CEST 2009
140	root	1.72	- always delay kil messages.
141	root	1.74	- remote monitor requests were never cleaned up (found by
142			Sadrak and analysed by elmex).
143			- move $VERSION to AnyEvent::MP and AnyEvent::MP only.
144	root	1.72
145	root	1.71	1.2 Thu Oct 1 22:59:35 CEST 2009
146	root	1.70	- fix a rather big bug where message processing could be
147			inhibited completely.
148	root	1.65	- grp_mon could not return a guard due to a typo.
149	root	1.66	- implement primitive aemp shell.
150	root	1.67	- do not use bound address as listen length (reported by
151			Felix Antonius Wilhelm Ostman).
152	root	1.68	- no longer export an undefined "reg" function from AE::MP.
153	root	1.69	- the mon_guard return value no longer keeps an additional
154			reference to the passed refs.
155	root	1.65
156	root	1.64	1.1 Fri Sep 11 04:34:03 CEST 2009
157	root	1.63	- bumped the transport protocol to version 1 - sorry, but there
158			were too many bugfixes/changes.
159			- new function AnyEvent::MP::cal for simple rpc.
160	root	1.49	- renamed AnyEvent::MP::Global functions to grp_reg\|get\|mon.
161	root	1.63	- implemented monitoring for Global groups.
162	root	1.50	- removed all userspace time-outs from the transport, instead
163			rely on tcp retransmit timeouts and tcp keepalive.
164	root	1.48	- spawn now delays spawns on the local node artificially, so
165			it can return before invoking the init function.
166	root	1.55	- break endless recursion between ping-pong ports on the local
167			node after ~50 iterations.
168	root	1.47	- support JSON-encoded aemp arguments.
169	root	1.51	- added aemp restart.
170	root	1.52	- support for starting init functions with parameters added.
171	root	1.53	- data_format, auth_offer and auth_accept are now configurable, albeit
172			not documented.
173	root	1.54	- new service: AnyEvent::MP::LogCatcher.
174	root	1.58	- rely on perl srand'ing better than we could.
175			- try to backport to 5.8.2, unfortunately, recursive dependencies
176			rely on Module::Build, which fails at 5.8.7, so YMMV.
177			- use a vastly different reseeding strategy.
178	root	1.61	- use seed nodes to notify nodes about new nodes.
179	root	1.63	- in the case where a ndoe learns new addresses after it tried
180			connecting, prefer the new addrseses over the old ones.
181	root	1.46
182	root	1.45	1.0 Wed Sep 2 20:40:43 CEST 2009
183	root	1.44	- randomise more connection times, but reduce delay to 0.2s (seeds)
184			and 0.05s (normal connects).
185	root	1.45	- upgrade to and require AnyEvent::Watchdog 1.0.
186	root	1.36
187	root	1.42	0.95 Mon Aug 31 22:03:55 CEST 2009
188	root	1.43	- tutorial finally covers all the basics, maybe not optimally, but it
189			is covered.
190	root	1.38	- rename initialise_node to configure and accepts key => value
191			pairs for configuration.
192	root	1.33	- give aemp a full manpage.
193	root	1.30	- bin/aemp now expects comma-separated lists and supports multiple
194			subcommands.
195	root	1.31	- new aemp eval subcommand.
196	root	1.34	- new aemp parent subcommand.
197	root	1.31	- nodes get freed when no longer needed.
198	root	1.35	- support "*" hostname to specify all local interface addresses
199			(without localhost etc.).
200	root	1.38	- support "*" port to specify a dynamically-assigned port (which
201			is the default now).
202	root	1.32	- fix per-transport memory leak.
203	root	1.30
204	root	1.29	0.9 Sat Aug 29 18:47:45 CEST 2009
205			- tutorial was updated to reflect the current API, but
206	root	1.43	does not touch monitoring yet.
207	root	1.24	- got rid of noderefs and slave nodes entirely, introduce
208	root	1.25	free-text node identifiers and anonymous nodes.
209	root	1.26	- document security issues with tls_anon method and introduce
210			optional tls_md6_64_256 method.
211	root	1.23
212			0.8 Wed Aug 19 07:54:50 CEST 2009
213	root	1.22	- added AnyEvent::MP::Global service.
214	root	1.20	- support "package::" names as service names.
215	root	1.21	- many, many, many bugfixes and tweaks.
216	root	1.20
217	root	1.19	0.7 Sat Aug 15 01:18:51 CEST 2009
218			- sorry, another major API simplification.
219	root	1.17	- greatly improved aemp configuration abilities.
220			- introduced profile management.
221	root	1.18	- updated exmaples in eg/.
222			- added Kernel::snd_to_func.
223	root	1.16
224	root	1.14	0.6 Thu Aug 13 03:15:05 CEST 2009
225			- do away with .aemp-secret and use .perl-anyevent-mp as json config
226	root	1.13	file.
227	root	1.14	- introduce bin/aemp to configure nodes.
228	root	1.15	- too many changes to describe.
229	root	1.13
230	root	1.12	0.4 Sun Aug 9 18:05:49 CEST 2009
231	root	1.11	- API should now be really stable :)
232	root	1.8	- distinguish between resolved and unresolved noderefs.
233	root	1.6	- certificates in .aemp-secret are now supported.
234	root	1.9	- change port creation semantics.
235			- replace become_xxx by initialise_node.
236	root	1.10	- implement AE::MP::spawn.
237	root	1.11	- implement transport timeouts, monitoring, reconnecting.
238			- simplify and partially document the transport protocol.
239	root	1.6
240	root	1.5	0.1 Tue Aug 4 23:07:11 CEST 2009
241	root	1.6	- AnyEvent::MP API should be mostly stable by now.
242	root	1.5
243	root	1.3	0.02 Sun Aug 2 17:46:43 CEST 2009
244			- design has stabilised a bit, sitll unusable.
245
246	root	1.2	0.01 Sat Aug 1 11:43:31 CEST 2009
247			- dummy upload to reserve namespace on CPAN.
248
249	root	1.1	0.0 Thu Jul 30 06:10:15 CEST 2009
250			- original version, an AnyEvent::AIO clone.