aboutsummaryrefslogtreecommitdiffstats
path: root/lib/mnesia
AgeCommit message (Collapse)Author
2015-02-10Merge branch ↵Dan Gudmundsson
'dumbbell/mnesia-hang-if-remote-stopped-after-proto-negotiation' into maint * dumbbell/mnesia-hang-if-remote-stopped-after-proto-negotiation: mnesia: Check nodes after protocol negotiation OTP-12473
2015-02-10mnesia: Check nodes after protocol negotiationJean-Sébastien Pédron
During Mnesia startup, after protocol negotiation, the list of connected nodes is written to "recover_nodes". This list is later used to merge the schema. If Mnesia was stopped on a remote node between the protocol negotiation and the moment the list is stored in "recover_nodes", the remote node is still considered running: the value of "recover_nodes" stored during mnesia_down/1 is overwritten. Therefore, this node may be used to acquire a write lock on the schema in order to perform the merge. In this case, the remote node never answers to the lock request and Mnesia hang forever (application:start(mnesia) never returns). To fix the problem, we check the list one last time and remove from it all nodes where Mnesia is stopped. And because there is still a chance for missing mnesia_down event, handle_cast({mnesia_down, ...}, ...) writes to recover_nodes again, in addition to mnesia_down/1.
2014-12-26Fix grammarDerek Brown
2014-12-09Prepare releaseErlang/OTP
2014-11-12mnesia: Fix match_object bugDan Gudmundsson
match_object returned wrong objects when matching on non key fields and updates in the same transaction had been performed.
2014-10-28Fix a typo in the mnesia documentationSina Samavati
2014-09-15Update release notesErlang/OTP
2014-09-15Update version numbersErlang/OTP
2014-09-01Merge branch 'maint-17' into maintMarcus Arendt
Conflicts: OTP_VERSION
2014-08-29Prepare releaseErlang/OTP
2014-08-28Avoid timing issue in schema transaction when node is stoppingDan Gudmundsson
By doing an abort, the create_table can be restarted if a node go down during the transaction. {badarg, [{erlang,link,[undefined],[]}, {mnesia_controller, wait_for_schema_commit_lock,0, [{file,"mnesia_controller.erl"}, {line,303}]}, {mnesia_schema,prepare_commit,3, [{file,"mnesia_schema.erl"}, {line,1838}]}, {mnesia_tm,commit_participant,6, [{file,"mnesia_tm.erl"}, {line,1669}]}]}}},
2014-08-25Fix misspellings of 'another'Tuncer Ayaz
2014-08-21Merge branch 'nox/reedr-logging/OTP-12115' into maintLukas Larsson
* nox/reedr-logging/OTP-12115: Add number of entries to mnesia copy debug message Add thread index to allocator enomem dump slogan Add run queue index to process dump info Add missing error string to syslog logging in epmd Demote rare debug slogan of message discarding to debug build
2014-08-14Add number of entries to mnesia copy debug messageRick Reed
2014-06-19Prepare releaseErlang/OTP
2014-06-16Merge branch 'gorillainduction/improve_mnesia_locker_complexity' into maintHenrik Nord
* gorillainduction/improve_mnesia_locker_complexity: Optimize tid lock table OTP-11981
2014-05-26Optimize tid lock tableTobias Lindahl
By making the ets table mnesia_tid_locks an ordered set instead of a bag, the time for inserting locks for a transaction with large number of locks is reduced significantly.
2014-05-26Merge branch 'dgud/mnesia/timing-issue' into maintDan Gudmundsson
* dgud/mnesia/timing-issue: mnesia: Fix timing issue
2014-05-26Merge branch 'dgud/testcasecuddling' into maintDan Gudmundsson
* dgud/testcasecuddling: mnesia: Improve tests
2014-05-26Merge branch 'dgud/mnesia/force-load-hangs/OTP-11948' into maintDan Gudmundsson
* dgud/mnesia/force-load-hangs/OTP-11948: mnesia: Handle failed net_loads better
2014-04-24mnesia: Handle failed net_loads betterDan Gudmundsson
In case of a failed net load and no more available copies, remove the table from late_load_queue, otherwise tables can not be forced loaded.
2014-04-11mnesia: Fix timing issueDan Gudmundsson
Be sure to gather release_tid msgs even though we have a mnesia_down in the queue.
2014-04-11mnesia: Improve testsDan Gudmundsson
Need to re-raise the match macro if inside transaction
2014-04-07Update release notesErlang/OTP
2014-03-28mnesia: test harder syncDan Gudmundsson
2014-03-28mnesia: Dialyzer fixesDan Gudmundsson
2014-03-20Introduce runtime_dependencies in .app filesRickard Green
Most dependencies introduced are exactly the dependencies to other applications found by xref. That is, there might be real dependencies missing. There might also be pure debug dependencies listed that probably should be removed. Each application has to be manually inspected in order to ensure that all real dependencies are listed. All dependencies introduced are to application versions used in OTP 17.0. This since the previously used version scheme wasn't designed for this, and in order to minimize the work of introducing the dependencies.
2014-03-20Bump versions and ensure that all are "normal" versionsRickard Green
Ensure all are "normal" versions according to the new version scheme introduced in OTP 17.0
2014-02-24Merge branch 'schlagert/fix_basic_appups'Siri Hansen
* schlagert/fix_basic_appups: Dynamically configure typer_SUITE according to environment Disable hipe_SUITE when environment doesn't support it Make hipe non-upgradable by setting appup file empty Fix missing module on hipe app file template Add test suites performing app and appup file checks Introduce appup test utility Fix library application appup files Fix non-library appup files according to issue #240 OTP-11744
2014-02-24Add test suites performing app and appup file checksTobias Schlager
Add the mentioned test suites for *all* library and touched non-library applications.
2014-02-21Merge branch 'dgud/mnesia/add-sync-log/OTP-11729'Dan Gudmundsson
* dgud/mnesia/add-sync-log/OTP-11729: mnesia: cleanup some dialyzer unmatched return warnings mnesia: Shorten testcase names mnesia: Improve mnesia coredump info mnesia: Add explicit sync_log command
2014-02-20mnesia: cleanup some dialyzer unmatched return warningsDan Gudmundsson
2014-02-20mnesia: Shorten testcase namesDan Gudmundsson
For windows tests (limited path lenghts)
2014-02-20mnesia: Improve mnesia coredump infoDan Gudmundsson
Add stacktrace of mnesia processes.
2014-02-20mnesia: Add explicit sync_log commandDan Gudmundsson
For performance reasons the file data is not synced to disk in mnesia, data loss can happen between each dump. mnesia:dump_log() can be used explicitly to ensure data is written to disk. But that can take a long time, so mnesia:sync_log() which just sync the log have been added.
2014-02-07Merge branch 'hsv/using_lists_droplast'Henrik Nord
* hsv/using_lists_droplast: lib/mnesia/test/ - Replace reverse(tl(reverse(L))) with lists:droplast/1 lib/ssh - Replace reverse(tl(reverse(L))) with lists:droplast/1 lib/wx - Replace reverse(tl(reverse(L))) with lists:droplast/1 Use lists:droplast/1 in orber/orber_interceptors.erl Import and use lists:droplast/1 in v3_core/v3_kernel OTP-11678 OTP-11677
2014-02-03lib/mnesia/test/ - Replace reverse(tl(reverse(L))) with lists:droplast/1Hans Svensson
2013-12-10Merge tag 'OTP_R16B03'Magnus Lidén
The R16B03 release Conflicts: lib/sasl/vsn.mk
2013-12-09Prepare releaseOTP_R16B03Erlang/OTP
2013-12-02Merge branch 'maint'Dan Gudmundsson
2013-11-29mnesia: Fix dirty_update bug when subscriber existsDan Gudmundsson
dirty_update_counter returned the wrong value when a subscriber existed and no events was sent. Thanks Anton Ryabkov.
2013-11-29Merge branch 'maint'Dan Gudmundsson
Conflicts: erts/etc/win32/Install.c
2013-11-28Fix race condition in mnesia_monitorJonas Falkevik
Mnesia_monitor detect mnesia down using a remote process link and net_kernel nodeup to detect that a node are reacable again. If there is a short node communication problem. The node-down and node-up events can happen before the remotely linked process generates an 'EXIT'. When node-down and node-up events are recevied they are stored and later checked if the node came up just before mnesia flagged the node as down.
2013-11-25mnesia: Synchronize lock cleanup after mnesia downDan Gudmundsson
Bad timing could lead to hanging transactions after a mnesia down from a node with sticky locks. Excellent bug report from janchochol Situation: * node A and B have copies of table T * node A ows sticky of table T * node A goes down (e.g. crash) * node B tries to perform transactional operation on table T (e.g. mnesia:select) In this situation there is possibility that first (and maybe other) transaction on node B will hang indefinitely. This is caused by race condition, when transaction process send lock request operation to node A and waits for reply. When node A is down it will never send reply, so process on node B will be stuck forever. Reason is that message sent to mnesia_locker gen_server from mnesia_locker:mnesia_down can be received after mnesia_locker gen_server already replies to transaction processes with {switch, N, Req} and node N is down. Monitoring remote process when sending request to other node should be safe solution.
2013-09-17Merge tag 'OTP_R16B02'Magnus Lidén
The R16B02 release Conflicts: lib/sasl/vsn.mk
2013-09-16Prepare releaseOTP_R16B02Erlang/OTP
2013-09-06Change encoding of troublesome notes.xml files to utf-8Björn Gustavsson
Most notes.xml files will be updated in every release and cause the kind of the problems described in the previous commit.
2013-08-29Merge branch 'maint'Dan Gudmundsson
2013-08-29mnesia: Checkpoint fixDan Gudmundsson
Avoid hanging waiting for other processes on other node to commit.
2013-08-29mnesia: Improve checkpoint activationDan Gudmundsson
Fixed a race where some parts of a transaction could be added to the checkpoint. There are probably more races here but this improves the current testcases.