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Symtom:
ETS table remains fixed after finished ets:select* call.
Problem:
The decision to unfix table after a yielding ets:select*
is based on table ownership, but ownership might have changed
while ets:select* was yielding.
Solution:
Remember and pass along whether table was fixed
when the traversal started.
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and rename it from match_callbacks_t.
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It's about the *last* time the table went from unfixed to fixed,
not the first time it ever did.
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* sverker/master/ets-no-mbuf-trapping/OTP-15660:
erts: Remove ets traversal yielding if heap fragment
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Add start_distribution to kernel environment
OTP-15668
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* sverker/maint/ets-no-mbuf-trapping/OTP-15660:
erts: Remove ets traversal yielding if heap fragment
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Tune BEAM instructions for the new compiler (part 2)
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* anders/diameter/21.3/OTP-15654:
Update appup for diameter 2.2 in OTP 21.3
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* anders/diameter/distribution/OTP-15398:
Add diameter_dist_SUITE to exercise diameter_dist:route_session/2
Add consistent hashing to diameter_dist:route_session/2
Add options to diameter_dist:route_session/2 node selection
Add diameter_dist for ready spawn_opt callbacks
Tweak/document request handler callback
Document acknowledgements in transport interface
Fix comment typo
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into maint
* ingela/ssl/ftp/continue/chunk-timing/ERIERL-316/OTP-15666:
ssl: Correct active once emulation
ftp: New test case
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Add crypto:cipher_info/1 and crypto:hash_info/1
OTP-15655
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* siri/logger/file-logging-improvements:
[logger] Add option file_check to logger_std_h
[logger] Add log file rotation by options to logger_std_h
[logger] Add better control of file modes in logger_std_h
[logger] Refactor logger_std_h
[logger] Make sure log file is re-opened with configured file options
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OTP-15663
This option indicates how often the handler shall check if the log
file still exists and if the inode is changed.
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OTP-15479
OTP-15662
New configuration map for logger_std_h:
#{type => file,
file => file:filename(),
modes => [file:mode()],
max_no_bytes => pos_integer() | infinity,
max_no_files => non_neg_integer(),
compress_on_rotate => boolean()}
For backwards compatibility, the old variant for specifying the file
name via the 'type' parameter is still supported, i.e. {file,FileName}
and {file,FileName,Modes}, but it is no longer documented.
Rotation scheme:
The current log file always has the same name, and the archived files
get extensions ".0", ".1", ... The newest archive has extension ".0",
and the oldest archive has the highest number.
If 'compress_on_rotate' is set to true, the archived files are gzipped
and get the additional extension ".gz", e.g. error.log.0.gz.
Rotation is turned off by setting 'max_no_bytes' to infinity. Setting
'max_no_files' to 0 does not turn off rotation, but only specifies
that no archives are to be saved.
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Conflicts:
lib/ftp/test/ftp_SUITE.erl
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into sverker/master/ets-no-mbuf-trapping/OTP-15660
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into sverker/maint/ets-no-mbuf-trapping/OTP-15660
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Many heap fragments do no longer make the GC slow.
Even worse, we are not guaranteed that a yield will provoke a GC
removing the fragments, which might lead to a one-yield-per-bucket
scenario if the heap fragment(s) still remains after each yield.
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* maint:
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* rickard/make-fixes-21/OTP-15657:
Remove own configured RM make variable
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* rickard/make-fixes-22/OTP-15657:
Remove own configured RM make variable
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* siri/logger/optimize-formatter/OTP-15647:
[logger] Improve formatter performance
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* siri/logger/bench:
[logger] Add benchmark of big log events with chars_limit and max_size
[logger] Add max memory usage to statistics in logger_olp
Skip logger benchmarks in normal kernel test
[logger] Add benchmark of events per millisecond for handlers
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Use S operands instead of s operands for a slight speed increase
and reduction in code size of process_main(). Use micro instructions
for frequently executed instructions.
While at it, use safe multiplication in gen_get_integer() in
beam_load.c.
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* ingela/ftp/chunk-timing/ERIERL-316/OTP-15659:
ftp: Correct test case
ftp: Fix timing bug
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Test case can not make assumptions on how many chunks will delivered
from the underlaying TCP stream.
Some code commented out that should be used in some form to create
a new test case. There might be other issues than the one fixed in
the previous commit.
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* rickard/send-bump-reds/ERL-773/OTP-15513:
Fix faulty assertion
Bump reductions on send based on message size
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* rickard/make-fixes-21/OTP-15657:
Remove own configured RM make variable
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* rickard/make-fixes-20/OTP-15657:
Remove own configured RM make variable
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* rickard/make-fixes-19/OTP-15657:
Remove own configured RM make variable
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* rickard/make-fixes-18/OTP-15657:
Remove own configured RM make variable
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* rickard/make-fixes-17/OTP-15657:
Remove own configured RM make variable
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Instead rely on gnu make's pre-defined RM variable which should
equal 'rm -f'
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Spread a server over three nodes, one of which terminates a peer
connection, the other two to handle requests. Terminate transport on one
of the server nodes and ensure that answers come only from the other
two.
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If the Session-Id optional value to node() mapping fails then hash
Session-Id to a node by default, instead of selecting the local node as
in the parent commit. The previous behaviour is configurable by setting
default = local in an options map.
Nodes make themselves part of the pool from which nodes are selected by
calling diameter_dist:attach/1 with the list of service names they are
willing to handle requests for, the local node being selected in the
absence of any attached nodes. The original idea was to base the node
pool on share_peers and/or use_shared_peers configuration, but that
configuration determines where outgoing requests can be sent, while
route_session/2 deals with incoming requests, so it's not obvious that
conflating the two is a good thing. (Also because
share_peers/use_shared_peers can be used in different ways; the former
could have been skipped entirely.)
The hashing effectively places nodes on a circle, a hashed Session-Id
being mapped to the nearest predecessor node (clockwise). Nodes are
rehashed with each Session-Id (with the id as salt) for a more even
distribution, at the cost of performance, although how high the cost or
how even the distribution has yet to be tested. Obviously, the larger
the number of attached nodes, the higher the cost. Adding/removing an
attached node only affects session ids that hash in the interval between
the added/removed node and its successor (hence consistent hashing).
Options are tweaked slightly compared to the parent commit, and it is
now possible to restrict the optional value mapping to specific Diameter
identities, to avoid mapping an id that was generated at the peer when
the peer is also implemented with the diameter application.
Note that diameter_dist is not yet an officially documented interface,
so could change. Documentation is in the module itself.
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To be able to restrict how many AVPs will be examined (from the front of
a message) when looking for Session-Id, and to decide what to do with if
the AVP isn't found. Options are specified as a map of the following
form.
#{search => non_neg_integer(),
default => discard | mfa(),
dispatch => list() | mfa()}
The search member says how many AVPs to examine at most, from the front
of the message. If the optional value of a Session-Id is not the name of
a connected node then the default member determines what to do with the
request, handle it locally (the default), discard it, or invoke an MFA
on the Session-Id | false (if none was found) and diameter_packet record
to return a node() | false; if the latter then the request is discarded.
If a node is identified then the dispatch MFA is invoked on the node and
the request MFA (as three arguments), a list Opts being equivalent to
the MFA {erlang, spawn_opt, [Opts]}, and the default being the empty
list.
Integer- or list-valued options are equivalent to the corresponding map
with a single value.
Limiting the search is to avoid searching messages containing many AVPs
for a Session-Id that is known to occur near the header, since section
8.8 of RFC 6733 says this:
When present, the Session-Id SHOULD appear immediately
following the Diameter header (see Section 3).
There's no guarantee, but in practice it may well be known that peers
are respecting the RFC, and in that case limiting the search is a
defense against searching messages from a malicious peer unnecessarily.
The search is unlimited by default.
A default is only used when a search fails to locate a Session-Id, and
can be to discard the message, or have a node() or false be returned
from an MFA applied to the diameter_packet in question. The local node
is chosen by default.
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That is, of functions that can be configured as spawn_opt MFAs in
transport configuration.
This commits adds the spawn_local described in the parent commit, and a
route_session that assumes that the local node initiates all sessions
with Session-Id returned by diameter:session_id/1, and handles incoming
requests on the node on which the id in question was returned,
diameter:session_id/1 using node() as optional value in the Session-Id
format.
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