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2019-02-22mnesia: Avoid raise in overload reportsDan Gudmundsson
Several processes could invoke adjust_log_writes, which could cause overload reports.
2018-08-23Merge branch 'maint-20' into maintLars Thorsen
* maint-20: Updated OTP version Prepare release Updated the engine load functionality Clean up bag index tables Conflicts: OTP_VERSION lib/crypto/c_src/crypto.c lib/crypto/doc/src/notes.xml lib/crypto/vsn.mk lib/mnesia/doc/src/notes.xml lib/mnesia/vsn.mk otp_versions.table
2018-08-17Clean up bag index tablesDan Gudmundsson
Index records for bag tables with ram_copies was not deleted after "real" objects where deleted and thus a memory leak.
2018-08-13Merge remote-tracking branch 'upstream/pr/1858' into maintDan Gudmundsson
* upstream/pr/1858: Fix delete_object and write convergence in transaction. OTP-15231
2018-08-10Merge branch 'maint-20' into maintRickard Green
* maint-20: Updated OTP version Update release notes Update version numbers crypto: Fix crash in compute_key(ecdh, ...) on badarg Relax add_table_copy restriction Fixed #Ref ordering bug Test #Ref ordering in lists and ets Do NOT disc_load from ram_copies when master_node is set ssl: Make sure that a correct cipher suite is selected ssl: Correct handling of empty server SNI extension
2018-08-09Merge branch 'dgud/mnesia/add_table_copy_ram/OTP-15226' into maint-20Erlang/OTP
* dgud/mnesia/add_table_copy_ram/OTP-15226: Relax add_table_copy restriction
2018-08-09Relax add_table_copy restrictionDan Gudmundsson
Allow to add replicas even if all other replicas are down when the other replicase are not stored on disk.
2018-08-08Do NOT disc_load from ram_copies when master_node is setDan Gudmundsson
Setting master_nodes to a node with ram_copies replica and that node had not loaded the table, could cause it load an empty table, even though (non master) nodes had disc_replicas. This meant that tables where unexpected empty after multiple failures happened. When this happen do not load the table and wait for user to force_load it on some node, preferably with a disk copy.
2018-07-19add more specific type spec for mnesia:change_configFerenc Böröczki
2018-07-18fix return type of mnesia:change_configFerenc Böröczki
2018-07-03Fix delete_object and write convergence in transaction.Daniil Fedotov
Fix a bug, when delete_object was deleting the record if it was written in the same transaction even if it was written to a different value. To verify: %% Create a set table mnesia:create_table(foo, []). %% Write and delete_object in transaction mnesia:transaction(fun() -> mnesia:write({foo, bar, one}), mnesia:delete_object({foo, bar, not_one}) end). {atomic, [{foo, bar, one}]} = mnesia:transaction(fun() -> mnesia:read(foo, bar) end). Added a section to isolation tests to check for non-matching delete_object requests.
2018-06-18Update copyright yearHenrik Nord
2018-03-16mikpe/process_info-1-no-messages/PR-1745/OTP-14986Lukas Larsson
make erlang:process_info/1 not retrieve messages
2018-03-10make erlang:process_info/1 not retrieve messagesMikael Pettersson
process_info/1 retrieves a number of properties related to a process, including the list of messages in its mailbox. This is potentially unsafe if the target process has a large number of queued messages: - there is no a priori upper bound on the amount of memory being allocated to hold that list, and - the loop to retrieve the messages is uninterruptible, so the Erlang scheduler where this executes blocks for the duration We've seen process_info/1 bring down heavily loaded nodes on more than one occasion. At least once it appeared to have blocked the Erlang heart process from executing, causing the external heart to kill the VM. Consequently this removes 'messages' from the list of process_info tags to retrieve for process_info/1. Note that process_info/1 still retrieves 'message_queue_len', and process_info/2 can still retrieve 'messages' when asked to. A few places in the OTP libraries need minor adjustments, since they want 'message_queue_len' but compute it from the length of the list of messages.
2018-02-06mnesia: Do not call erlang:get_stacktrace() (cont)Hans Bolinder
Take care of the call of erlang:get_stacktrace() in module mnesia_lib.
2018-02-06mnesia: Do not call erlang:get_stacktrace()Hans Bolinder
The remaining call (in module mnesia_lib) is taken care of in the following commit.
2017-12-19Merge branch 'maint'Dan Gudmundsson
* maint: Updated OTP version Prepare release mnesia: Fix checkpoint crash
2017-12-18Merge branch 'dgud/mnesia/checkpoint-crash/OTP-14841' into maint-20Erlang/OTP
* dgud/mnesia/checkpoint-crash/OTP-14841: mnesia: Fix checkpoint crash
2017-12-18Merge branch 'dgud/mnesia/slow-startup/OTP-14829' into maint-20Erlang/OTP
* dgud/mnesia/slow-startup/OTP-14829: mnesia: Read schema user properties directly
2017-12-18mnesia: Fix checkpoint crashDan Gudmundsson
Bad timing can cause retain messages to go to a new process if checkpoint name is reused directly and the checkpoints contain different tables. Ignore those messages instead of crash.
2017-12-18Merge branch 'maint'Dan Gudmundsson
* maint: Updated OTP version Prepare release mnesia: Read schema user properties directly ssh: testcases for space trailing Hello msg ssh: Don't remove trailing WS in Hello msg
2017-12-18Merge branch 'maint-19' into maintDan Gudmundsson
* maint-19: Updated OTP version Prepare release mnesia: Read schema user properties directly ssh: testcases for space trailing Hello msg ssh: Don't remove trailing WS in Hello msg
2017-12-15Merge branch 'dgud/mnesia/slow-startup/OTP-14829' into maint-19Erlang/OTP
* dgud/mnesia/slow-startup/OTP-14829: mnesia: Read schema user properties directly
2017-12-14mnesia: Read schema user properties directlyDan Gudmundsson
Doing a proper transaction handling of user properties (in current implmenentation) caused schema_transactions to be quadratic which caused huge startup times for nodes with many tables since the merge schema is a schema_transaction. Do a direct read instead, cheap but implies that the plugin changes will not be visible until the changes are commited and cannot be used later in same transaction, which was possible before if undocumented functions where used.
2017-12-04Merge branch 'maint'Dan Gudmundsson
* maint: mnesia: Fix error handling in abort write
2017-12-04Merge branch 'dgud/mnesia/backup-error-handling/OTP-14776' into maintDan Gudmundsson
* dgud/mnesia/backup-error-handling/OTP-14776: mnesia: Fix error handling in abort write
2017-11-30Merge branch 'maint'Dan Gudmundsson
* maint: Fix type create_option() in mnesia
2017-11-27Fix type create_option() in mnesiaAndras Boroska
The create_option() type in mnesia lacks the user_properties field which is used by mnesia in various places.
2017-11-14Add ignore option to transform_table fun (#1614)Bernard Duggan
2017-11-14mnesia: Fix error handling in abort writeDan Gudmundsson
The "root cause" error reason was lost when abort_write failed, e.g. file was already closed, and Mod:abort_write(..) returned an error.
2017-09-19Update runtime deps to depend on new stdlib functionalityDan Gudmundsson
~tw and new string functions are new since OTP-20 (stdlib-3.4)
2017-09-05mnesia: Improve handling of UnicodeHans Bolinder
2017-06-14Update copyright yearHans Nilsson
2017-05-31mnesia: Print tables with ~ts to support unicode atomsDan Gudmundsson
2017-05-22mnesia: Correct a type declarationHans Bolinder
2017-05-04Update copyright yearRaimo Niskanen
2017-05-02mnesia: Remove not used mnesia_snmp_supDan Gudmundsson
It is not used anymore, snmp indecies are now ets tables and not processes.
2017-05-02Do not call which_applications()Dan Gudmundsson
Which may hang if an application start does wait for tables during initilization.
2017-02-14Fixed typos in lib/mnesiaAndrew Dryga
2017-02-01Merge branch 'maint'Dan Gudmundsson
* maint: Updated OTP version Prepare release Fixed crash when a table was deleted during checkpoint traversal
2017-01-30Fixed crash when a table was deleted during checkpoint traversalDan Gudmundsson
Set fixtable false will fail on deleted tables, catch that and also report checkpoint deactivate error, so user can see why checkpoint was deactivated and backup fails.
2017-01-25mnesia: Remove mnesia_frag_old_hash hash moduleBjörn-Egil Dahlberg
The module mnesia_frag_old_hash utilized the broken erlang:hash/2 function which has been deprecated for a long time. Since erlang:hash/2 is now removed there is no point in having this module any more.
2016-12-05Merge branch 'maint'Dan Gudmundsson
* maint: Use off_heap memory queue for mnesia_tm Preserve key order in mnesia:table_info
2016-12-05Merge branch 'richcarl/mnesia/table_info_order' into maintDan Gudmundsson
* richcarl/mnesia/table_info_order: Preserve key order in mnesia:table_info
2016-11-28Use off_heap memory queue for mnesia_tmDan Gudmundsson
Helps when mnesia_tm gets drowned in dirty_writes from remote node.
2016-11-18Preserve key order in mnesia:table_infoRichard Carlsson
2016-11-17Merge branch 'dgud/mnesia/type-specs'Dan Gudmundsson
* dgud/mnesia/type-specs: Add basic spec and types
2016-11-17Add basic spec and typesDan Gudmundsson
2016-11-11Don't wrap continuations from mnesia_ext backendsRichard Carlsson
Continuations returned from mnesia_ext backends were originally wrapped with the backend module, but that was a remnant of the earliest implementation, and is not actually needed, since Mnesia already knows what the table storage type is when it applies the continuation. When mnesia_ext was ported to OTP 19, the wrapper got changed to use the table type alias instead of the module, which triggered an error in the mnesia_eleveldb backend. This patch removes the wrapping completely.
2016-10-29Make a separate application module for MnesiaRichard Carlsson
To separate concerns and reduce confusion, avoid implementing two behaviours in a single module. Make a single start_link() helper in mnesia_sup and remove the unused mnesia_sup:start() utility function.