Patch Package OTP 22.3.4.25 Released

Erlang/OTP otp@REDACTED
Tue Mar 29 16:48:43 CEST 2022


Patch Package:           OTP 22.3.4.25
Git Tag:                 OTP-22.3.4.25
Date:                    2022-03-29
Trouble Report Id:       OTP-17843, OTP-17888, OTP-17904, OTP-17905,
                         OTP-17998
Seq num:                 ERIERL-732, ERIERL-757, GH-5554
System:                  OTP
Release:                 22
Application:             common_test-1.18.2.2, erts-10.7.2.17,
                         kernel-6.5.2.5
Predecessor:             OTP 22.3.4.24

 Check out the git tag OTP-22.3.4.25, and build a full OTP system
 including documentation. Apply one or more applications from this
 build as patches to your installation using the 'otp_patch_apply'
 tool. For information on install requirements, see descriptions for
 each application version below.

 ---------------------------------------------------------------------
 --- HIGHLIGHTS ------------------------------------------------------
 ---------------------------------------------------------------------

  OTP-17843    Application(s): erts, kernel
               Related Id(s): ERIERL-732, PR-5611

               By default global does not take any actions to restore
               a fully connected network when connections are lost due
               to network issues. This is problematic for all
               applications expecting a fully connected network to be
               provided, such as for example mnesia, but also for
               global itself. A network of overlapping partitions
               might cause the internal state of global to become
               inconsistent. Such an inconsistency can remain even
               after such partitions have been brought together to
               form a fully connected network again. The effect on
               other applications that expects that a fully connected
               network is maintained may vary, but they might
               misbehave in very subtle hard to detect ways during
               such a partitioning.

               In order to prevent such issues, we have introduced a
               prevent overlapping partitions fix which can be enabled
               using the prevent_overlapping_partitions kernel(6)
               parameter. When this fix has been enabled, global will
               actively disconnect from nodes that reports that they
               have lost connections to other nodes. This will cause
               fully connected partitions to form instead of leaving
               the network in a state with overlapping partitions.
               Note that this fix has to be enabled on all nodes in
               the network in order to work properly. Since this quite
               substantially changes the behavior, this fix is
               currently disabled by default. Since you might get hard
               to detect issues without this fix you are, however,
               strongly advised to enable this fix in order to avoid
               issues such as the ones described above. As of OTP 25
               this fix will become enabled by default.


 ---------------------------------------------------------------------
 --- common_test-1.18.2.2 --------------------------------------------
 ---------------------------------------------------------------------

 The common_test-1.18.2.2 application can be applied independently of
 other applications on a full OTP 22 installation.

 --- Fixed Bugs and Malfunctions ---

  OTP-17888    Application(s): common_test

               OTP internal test fix.


 Full runtime dependencies of common_test-1.18.2.2: compiler-6.0,
 crypto-3.6, debugger-4.1, erts-7.0, ftp-1.0.0, inets-6.0, kernel-4.0,
 observer-2.1, runtime_tools-1.8.16, sasl-2.4.2, snmp-5.1.2, ssh-4.0,
 stdlib-3.5, syntax_tools-1.7, tools-2.8, xmerl-1.3.8


 ---------------------------------------------------------------------
 --- erts-10.7.2.17 --------------------------------------------------
 ---------------------------------------------------------------------

 Note! The erts-10.7.2.17 application *cannot* be applied
       independently of other applications on an arbitrary OTP 22
       installation.

       On a full OTP 22 installation, also the following runtime
       dependency has to be satisfied:
       -- kernel-6.5.2.5 (first satisfied in OTP 22.3.4.25)


 --- Fixed Bugs and Malfunctions ---

  OTP-17843    Application(s): erts, kernel
               Related Id(s): ERIERL-732, PR-5611

               *** HIGHLIGHT ***

               By default global does not take any actions to restore
               a fully connected network when connections are lost due
               to network issues. This is problematic for all
               applications expecting a fully connected network to be
               provided, such as for example mnesia, but also for
               global itself. A network of overlapping partitions
               might cause the internal state of global to become
               inconsistent. Such an inconsistency can remain even
               after such partitions have been brought together to
               form a fully connected network again. The effect on
               other applications that expects that a fully connected
               network is maintained may vary, but they might
               misbehave in very subtle hard to detect ways during
               such a partitioning.

               In order to prevent such issues, we have introduced a
               prevent overlapping partitions fix which can be enabled
               using the prevent_overlapping_partitions kernel(6)
               parameter. When this fix has been enabled, global will
               actively disconnect from nodes that reports that they
               have lost connections to other nodes. This will cause
               fully connected partitions to form instead of leaving
               the network in a state with overlapping partitions.
               Note that this fix has to be enabled on all nodes in
               the network in order to work properly. Since this quite
               substantially changes the behavior, this fix is
               currently disabled by default. Since you might get hard
               to detect issues without this fix you are, however,
               strongly advised to enable this fix in order to avoid
               issues such as the ones described above. As of OTP 25
               this fix will become enabled by default.


  OTP-17904    Application(s): erts
               Related Id(s): ERIERL-757

               Fix memory leak when tracing on running on a process
               that only handle system tasks or non-message signals
               (for example process_info requests).


  OTP-17998    Application(s): erts
               Related Id(s): GH-5554, PR-5825

               Fix Erlang monotonic time on MacOS. Previously used OS
               monotonic time primitive on MacOS is buggy and will not
               be used anymore. It has been replaced with usage of
               another OS monotonic time primitive that does not
               appear to be buggy.


 Full runtime dependencies of erts-10.7.2.17: kernel-6.5.2.5,
 sasl-3.3, stdlib-3.5


 ---------------------------------------------------------------------
 --- kernel-6.5.2.5 --------------------------------------------------
 ---------------------------------------------------------------------

 Note! The kernel-6.5.2.5 application *cannot* be applied
       independently of other applications on an arbitrary OTP 22
       installation.

       On a full OTP 22 installation, also the following runtime
       dependency has to be satisfied:
       -- erts-10.7.2.17 (first satisfied in OTP 22.3.4.25)


 --- Fixed Bugs and Malfunctions ---

  OTP-17843    Application(s): erts, kernel
               Related Id(s): ERIERL-732, PR-5611

               *** HIGHLIGHT ***

               By default global does not take any actions to restore
               a fully connected network when connections are lost due
               to network issues. This is problematic for all
               applications expecting a fully connected network to be
               provided, such as for example mnesia, but also for
               global itself. A network of overlapping partitions
               might cause the internal state of global to become
               inconsistent. Such an inconsistency can remain even
               after such partitions have been brought together to
               form a fully connected network again. The effect on
               other applications that expects that a fully connected
               network is maintained may vary, but they might
               misbehave in very subtle hard to detect ways during
               such a partitioning.

               In order to prevent such issues, we have introduced a
               prevent overlapping partitions fix which can be enabled
               using the prevent_overlapping_partitions kernel(6)
               parameter. When this fix has been enabled, global will
               actively disconnect from nodes that reports that they
               have lost connections to other nodes. This will cause
               fully connected partitions to form instead of leaving
               the network in a state with overlapping partitions.
               Note that this fix has to be enabled on all nodes in
               the network in order to work properly. Since this quite
               substantially changes the behavior, this fix is
               currently disabled by default. Since you might get hard
               to detect issues without this fix you are, however,
               strongly advised to enable this fix in order to avoid
               issues such as the ones described above. As of OTP 25
               this fix will become enabled by default.


 --- Improvements and New Features ---

  OTP-17905    Application(s): kernel
               Related Id(s): ERIERL-732, PR-5740

               A net_tickintensity kernel parameter has been
               introduced. It can be used to control the amount of
               ticks during a net_ticktime period.

               A new net_kernel:start/2 function has also been
               introduced in order to make it easier to add new
               options. The use of net_kernel:start/1 has been
               deprecated.


 Full runtime dependencies of kernel-6.5.2.5: erts-10.7.2.17,
 sasl-3.0, stdlib-3.5


 ---------------------------------------------------------------------
 ---------------------------------------------------------------------
 ---------------------------------------------------------------------



More information about the erlang-announce mailing list