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Log of /googlecode.com/svn/trunk/Meteor/Channel.pm

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Revision 64 - (view) (annotate) - [select for diffs]
Modified Mon Jan 19 11:19:41 2009 UTC (13 years ago) by andrew.betts
File length: 7994 byte(s)
Diff to previous 62
Release 1.06.04 as documented in Google Group

Revision 62 - (view) (annotate) - [select for diffs]
Modified Thu Nov 27 00:33:21 2008 UTC (13 years, 1 month ago) by andrew.betts
File length: 7964 byte(s)
Diff to previous 58
1 Fixed: Added SIGPIPE handler.  We noticed that under heavy load
Meteor receives SIGPIPEs from the OS, suspected to relate to clients
that have just disconnected the moment Meteor attempts to write to the
socket.  This caused Meteor to crash.
2 Fixed: Long polling multiple channels no longer causes the loop to
die and restart when some channels have messages queued for delivery.
3 Fixed: Over time, Meteor 'collected' connections from clients that
never got disconnected even if MaxTime was set.  This happened if the
client concerned sent a header with no terminating blank line.  Meteor
kept waiting for the rest of the header, which never arrived, and
therefore the client remained in limbo, never subjected to the MaxTime
time limit because it had not yet become a subscriber.  Clients are
now allowed 30 seconds to send a valid request header.
4 Fixed: If only one message existed on the server, the JS client
would continue to request it again and again, because it has message
ID 0, and the JS client considered this an invalid message ID.
5 Fixed: Corrected some comments in file headers

6 Changed: MaxMessages has been renamed to CloseOnEvent and functions
in a similar, but not quite identical way.  Thanks to Matthew Haak,
who pointed out the extreme confusingness of MaxMessages and a bug
that has resulted in Fix 2 above.  Setting CloseOnEvent to any value
that evaluates to true will cause Meteor to close subscriber
connections after at least one message has been sent and there are no
further messages pending.  This is identical to MaxMessages for values
of 0 and 1, but where MaxMessages is set to a value higher than one,
replacing it with CloseOnEvent with the same value will act as though
it were set to one.  The intent of MaxMessages was to enable long-
polling (and it is used by the JS client in that way), and
CloseonEvent is a drop in replacement for that behaviour.
7 Changed: Meteor JS client now uses dynamic <SCRIPT> tags for all
polling behaviours, rather than XHR.  This enables it to make poll
requests cross-domain (see 13)
8 Changed: Meteor JS client now abstracts timestamp lookups to a
dedicated method.
9 Changed: Default HeaderTemplates no longer include cache busting
headers, since all meteor requests contain a millisecond timestamp and
so no client makes the same request twice.  These were therefore
simply chewing up bandwidth.
10 Changed: Date strings used for logging debug messages are cached to
avoid numerous expensive lookups to localtime().
11 Changed: Channel info is only sent in a response if the client does
not request a restart from a specified ID.  The logic being that if
the client knows the ID they want to start from, they have already
made previous requests and have the channel information they need.
Bandwidth saving measure.

12 Added: JS client now has a Meteor.isSupportedBrowser() method,
which you can call to detemine whether Meteor will run in the user's
browser version.
13 Added: JS client can now use different hosts for polling and
streaming.  This is only really useful if your website is on a domain
that has a lot of cookies, and you don't want to send them in every
poll request.  Removing cookies from request headers can reduce the
size of the request significantly.  We find that with cookies included
Meteor poll requests are usually larger than the responses.  To use,
set Meteor.pollhost.  Meteor.pollhost can be any domain, while
Meteor.host must be a subdomain of your website hostname.
14 Added: Config file now supports new 'FooterTemplate' parameter, for
a string to send just before the connection to the subscriber is
closed.  This is in support of change 7.
15 Added: Better inline documentation for ChannelInfoTemplate config
16 Added: Log output includes connection IDs corresponding to the file
inode for each connection
17 Added: New controller command LISTCONNECTIONS, produces a newline
delimited list of all currently connected clients, and for each one
displaying "ConnectionID IPAddress ClientType [SubscriberID]"
18 Added: New controller command DESCRIBE, takes a ConnectionID as a
parameter, and outputs numerous statistics about that particular
client, including number of messages sent/received, user agent, IP
address, time connected, time remaining until MaxTime etc.
19 Added: New controller comment LISTSUBSCRIBERS, produces a newline
delimited list of all currently connected streaming subscribers, and
for each one displaying "SubscriberID IPAddress Starttime TimeLimit
TimeRemaining MessageCount UserAgent"
20 Added: SHOWSTATS command produces the following additional stats:
connection_count: total current connections, real_subscribers: total
of number of currently connected streaming subscribers plus the number
of unique polling connections seen in the last 60 seconds.
21 Added: STDERR outputs prior to every exit() for debugging purposes
22 Added: The UDP server is now considered stable, and is the best way
of broadcasting messages to lots of Meteor nodes simultaneously and

Revision 58 - (view) (annotate) - [select for diffs]
Modified Thu Mar 6 08:29:39 2008 UTC (13 years, 10 months ago) by andrew.betts
File length: 8017 byte(s)
Diff to previous 53
Fixed: Reporting zero as first ID on channel causes JS client to miss first message

Revision 53 - (view) (annotate) - [select for diffs]
Modified Wed Feb 27 21:58:56 2008 UTC (13 years, 10 months ago) by andrew.betts
File length: 8017 byte(s)
Diff to previous 50
Updated version number

JS client:
Added channel info handler to JS client, assumes Meteor will send <script>ch('channel', msgid);</script>
Allowed processing of messages prior to current message index
Added disconnect() to eof()
Revert to poll mode if unable to load frame (should fix IE proxy issues)

Fixed output of channel info to show only subscribed channels (and simplified)
Added logging of IP addresses

Revision 50 - (view) (annotate) - [select for diffs]
Modified Wed Feb 27 13:55:35 2008 UTC (13 years, 10 months ago) by andrew.betts
File length: 8214 byte(s)
Diff to previous 47
Added crossdomain.xml for flash clients
Incremented version number
Moved 'new message' debug notice to more useful location
Moved default for ChannelInfoTemplate to correct position alphabetically in code
Set simpler default HeaderTemplate
Added LogTimeFormat
Updated description of PingInterval, Persist
Corrected misspelling of Parameter
Reformatted debug output for config initialisation
Added recognition of null byte in config
Fixed problem with mode recognition
Fixed resuming from given message ID
Fixed sending of message backlog
Fixed Shlemiels
Logged connection duration on leavechannel
Fixed name support in channelinfotemplate
Added logging of reasons for connection closes
Abbreviated log output
Fixed tracking of subscriber IDs
Added logging of user agent
Fixed incorrect key for MessageTemplate in Subscriber.pm
Add some additional code comments
Fixed incorrect closure of new connection if previous connection close was waiting on write buffer

Revision 47 - (view) (annotate) - [select for diffs]
Modified Mon Feb 4 21:06:42 2008 UTC (13 years, 11 months ago) by knops.gerd
File length: 8033 byte(s)
Diff to previous 46
• syslog change: If `SyslogFacility` is set to `none`, meteord will not put itself into the background and print all syslog messages with a priority higher than `debug` to standard output. The output will be prefixed with a timestamp (unix time in seconds) and a tab character.

• New syslog messges: joinchannel, leavechannel, document

Revision 46 - (view) (annotate) - [select for diffs]
Modified Mon Feb 4 19:24:25 2008 UTC (13 years, 11 months ago) by knops.gerd
File length: 7600 byte(s)
Diff to previous 45
• The ADDMESSAGE response now follows the `OK` with a tab character and the message ID for the newly added message

Revision 45 - (view) (annotate) - [select for diffs]
Modified Mon Feb 4 19:02:49 2008 UTC (13 years, 11 months ago) by knops.gerd
File length: 7364 byte(s)
Diff to previous 25
• Mode-specific configurations
• New ~channelinfo~ header keyword
• New ChannelInfoTemplate parameter

Revision 25 - (view) (annotate) - [select for diffs]
Modified Sun May 20 19:40:53 2007 UTC (14 years, 8 months ago) by knops.gerd
File length: 6796 byte(s)
Diff to previous 16
• Add simple statistics, available via new SHOWSTATS controller command

Revision 16 - (view) (annotate) - [select for diffs]
Modified Tue May 1 16:59:28 2007 UTC (14 years, 8 months ago) by knops.gerd
File length: 6687 byte(s)
Diff to previous 13
• Add ~channel~ to the list of available placeholders

Revision 13 - (view) (annotate) - [select for diffs]
Modified Mon Apr 30 18:16:17 2007 UTC (14 years, 8 months ago) by knops.gerd
File length: 6644 byte(s)
Diff to previous 11
• Allow to subscribe to multiple channels

Revision 11 - (view) (annotate) - [select for diffs]
Modified Thu Dec 14 16:29:42 2006 UTC (15 years, 1 month ago) by knops.gerd
File length: 6622 byte(s)
Diff to previous 9
• Change CRLF line endings back to LF only

Revision 9 - (view) (annotate) - [select for diffs]
Modified Fri Dec 8 16:52:58 2006 UTC (15 years, 1 month ago) by andrew.betts
File length: 6934 byte(s)
Diff to previous 3

Revision 3 - (view) (annotate) - [select for diffs]
Added Mon Nov 20 17:59:30 2006 UTC (15 years, 2 months ago) by andrew.betts
File length: 6622 byte(s)
Initial import

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