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* anders/diameter/19.3/OTP-14252:
vsn -> 1.12.2
Update appup for 19.3
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When relaying outgoing requests through transport on a remote node,
terms that were stripped when sending to the transport process weren't
stripped when spawning a process on the remote node.
Also, don't save the request to the process dictionary in a process that
just relays an answer.
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The table has existed forever, to route incoming answers to a waiting
request process: each outgoing request writes to the table, and each
incoming answer reads. This has been seen to suffer from lock contention
at high load however, so this commit moves the routing into the
diameter_peer_fsm processes that are diameter's conduit to transport
processes. The request table is still used for failover detection, but
entries are only written when a watchdog state transitions leaves or
enters state OKAY.
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OTP-14206 fix 19.1 failover blunder, use diameter_request less
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Commit 9a878743 addressed inefficiency at failover, but introduced
inefficiency in the sending of outgoing requests in so doing: each
outgoing request added an request table entry keyed on a transport pid,
then looked for a specific element with this key, and then (later)
removed the inserted element. Since the request table is a bag, this
results in linear searches over a potentially long list of element
keyed on the same pid. The higher the rate of outgoing calls, the more
costly it becomes.
Instead of writing entries to the request table, the peer_up/down calls
to diameter_traffic that mirror transitions to and from the OKAY state
in the RFC 3539 watchdog state machine now result in a process for
request processes to monitor in order to detect failover.
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* anders/diameter/19.1/OTP-13838:
vsn -> 1.12.1
Update appup for 19.1
Fix xmllint errors in documentation
Remove documentation overkill
Don't run traffic tests in parallel when {string_decode, true}
Remove copyright from generated dictionary modules
Fix dictionary function typo
Fix dictionary typo in relay example
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* anders/diameter/failover/OTP-13412:
Make peer failover more efficient
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* anders/diameter/min_heap_size/OTP-13796:
Let unfortunate min_heap_size setting be disabled
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* anders/diameter/19/listen/OTP-13787:
Close listening sockets at service death
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OTP-13412 more efficient peer failover
OTP-13787 close listening sockets
OTP-13796 min_heap_size
OTP-13838 typo in diameter_traffic
No load order requirements.
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The setting in all diameter server processes has existed since the
beginning of time. Whether it's actually useful is questionable, but it
does lead to increased memory usage, especially if there are many peer
connections whose processes wouldn't otherwise be large. Let the setting
be disabled with -diameter min_heap_size false. (Or any value that isn't
a non-negative integer.)
The diameter application itself only calls
diameter_lib:spawn_opts(server, []), but let other arguments remain for
backwards compatibility, since diameter_lib:spawn_opts/2 has been abused
from outside of diameter.
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The SCPT stack has a different behavior in solaris2.10 then in later versions
and linux. Diameter implementation does not support this behavior.
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"Defaults to X" isn't clarified by "if unspecified".
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Since the large strings copied between processes cause testcases to fail
randomly.
Option string_decode was added in commit 1590920c.
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Commit 5ca5fb71 ensured that they were closed immediately at transport
removal, but in so doing broke their closing at stop service completely,
by removing the timer that caused sockets to be closed even belatedly.
Monitor on the service process to make it happen.
This could still be improved, since stop_service listening ports aren't
closed until after the service process has died. They could be closed
earlier in the case of stop_service.
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The copyright was a historical remnant of diameter's roots prior to its
inclusion in OTP.
Thanks to Anatolie Golovco.
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It's '#get-'/2, not 'get-'/2. Only failed if the dictionary in question
defined no Failed-AVP, which is rarely the case in practice.
Thanks to Ferenc Holzhauser.
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* binarin/even-more-absolute-paths/PR-1103/OTP-13800:
Use perl discovered by configure
Don't make assumptions about build tools paths
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One more followup to https://github.com/erlang/otp/pull/1056 and
https://github.com/erlang/otp/pull/1023
This time it's about `/usr/bin/env` and `/bin/cp`:
- `/usr/bin/env` in `diameterc` was used to find the bootstrapped
`escript` executable. Changed it to exlpicit call to `escript` in
Makefile.
- `/usr/bin/env` and `/bin/cp` were referenced in documentation
build/install process. Now full paths to this tools are injected using
autoconf magic.
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* anders/diameter/rand/OTP-13664:
Use rand(3) instead of random(3)
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* anders/diameter/19/listen/OTP-13611:
Fix testsuite match blunder
Remove unnecessary no_auto_import
Redo transport config server as a gen_server
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That missed comm_up when something like the following was received on
FreeBSD (for one):
{sctp,#Port<0.599>,
{127,0,0,1},
45455,
{[{sctp_sndrcvinfo,0,0,[],0,0,0,0,145060462,3}],
{sctp_assoc_change,comm_up,0,10,10,3}}}
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The latter is deprecated in OTP 19.
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Not difficult to avoid, and better without.
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To properly handle system messages. Initially implemented in commit
5ca5fb71.
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* anders/diameter/19/listen/OTP-13611:
Fix leaking transports in traffic/relay suites
Close listening sockets at transport removal
Don't restart transport processes after transport removal
Rename diameter_reg:del -> remove
Add diameter_reg:subscribe/2
Add dialyzer specs to diameter_reg
Remove diameter_reg:repl/2
Remove diameter_reg bloat
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This reverts commit e020f75c10410a6943cd055bfa072a2641eab7da.
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Listening transports weren't removed, which diameter_reg:subs/0 revealed.
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The transport interface documented in diameter_transport(3) is used to
start/stop accepting/connecting transport processes: they're started
with a function call, and told to die with their parent process. In the
accepting case, both diameter_tcp and diameter_sctp start a listening
process when the first accepting transport is started. However, there's
no way for a listening process to find out that that it should stop
listening when transport configuration is removed.
Both diameter_tcp and diameter_sctp have used a timer to terminate the
listening process after all existing accepting processes have died as a
consequence of transport removal. The problem with this is that nothing
stops a new client from connecting before this, and also that no new
transport can succeed in opening the same listening port (eg.
reconfiguration) until the old listener dies.
This commit solves the problem by adding diameter_reg:subscribe/2, to
allow callers to subscribe to messages about added/removed associations.
A call to diameter:add_transport/2 results in a new child process that
registers a term that a listening process subscribes to. Transport
removal results in the death of the child, and the resulting
notification to the listener causes the latter to close its socket and
terminate.
This is still an internal interface, but the subscription mechanism
should probably be made external (eg. a diameter:subscribe/1 that can
be used to subscribe to specified messages), so that transport modules
other than diameter's own can make use of it. There is no support for
soft upgrade.
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A replacement accepting transport could be started after the service
process received a shutdown message from diameter_config, if a
connection was accepted before the transport process in question was
terminated. The replacement lived on until the service needed to restart
it.
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Letters are cheap.
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To allow processes to subscribe to a message when a matching association
is added or removed. The intention is to use this in
diameter_{tcp,sctp}, in order for listening processes to find out when
transport their transport configuration has been removed.
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Last missed in commit 25bef13f.
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Unused, and in the way for what's to come.
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Unexpected messages don't happen in practice, and no_auto_import is
neither necessery nor difficult to avoid.
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This reverts commit bd64ad8e15d66e48b36dbe3584315dd5cfc8b59a.
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* anders/diameter/19.0-rc1/OTP-12913:
vsn -> 1.12
Update appup for 19.0-rc1
Update documentation for CEA/DWA/DPA Result-Code counters
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* anders/diameter/info/OTP-13508:
Add diameter:peer_find/1
Add diameter:peer_info/1
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* anders/diameter/overload/OTP-13330:
Suppress dialyzer warning
Remove dead case clause
Let throttling callback send a throttle message
Acknowledge answers to notification pids when throttling
Throttle properly with TLS
Don't ask throttling callback to receive more unless needed
Let a throttling callback answer a received message
Let a throttling callback discard a received message
Let throttling callback return a notification pid
Make throttling callbacks on message reception
Add diameter_tcp option throttle_cb
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* anders/diameter/test/OTP-13438:
Don't assume list comprehension evaluation order
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