From 230358701da9764fa4c637e9e781668276f14938 Mon Sep 17 00:00:00 2001 From: Dan Gudmundsson Date: Thu, 26 Jan 2017 12:43:36 +0100 Subject: Fixed crash when a table was deleted during checkpoint traversal 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. --- lib/mnesia/src/mnesia_checkpoint.erl | 7 ++++--- lib/mnesia/src/mnesia_event.erl | 3 ++- 2 files changed, 6 insertions(+), 4 deletions(-) (limited to 'lib/mnesia/src') diff --git a/lib/mnesia/src/mnesia_checkpoint.erl b/lib/mnesia/src/mnesia_checkpoint.erl index 9eb939e8d3..fc626940b4 100644 --- a/lib/mnesia/src/mnesia_checkpoint.erl +++ b/lib/mnesia/src/mnesia_checkpoint.erl @@ -909,7 +909,7 @@ retainer_loop(Cp = #checkpoint_args{name=Name}) -> retainer_loop(Cp2); {From, {iter_end, Iter}} -> - retainer_fixtable(Iter#iter.oid_tab, false), + ?SAFE(retainer_fixtable(Iter#iter.oid_tab, false)), Iters = Cp#checkpoint_args.iterators -- [Iter], reply(From, Name, ok), retainer_loop(Cp#checkpoint_args{iterators = Iters}); @@ -971,7 +971,8 @@ do_stop(Cp) -> unset({checkpoint, Name}), lists:foreach(fun deactivate_tab/1, Cp#checkpoint_args.retainers), Iters = Cp#checkpoint_args.iterators, - lists:foreach(fun(I) -> retainer_fixtable(I#iter.oid_tab, false) end, Iters). + [?SAFE(retainer_fixtable(Tab, false)) || #iter{main_tab=Tab} <- Iters], + ok. deactivate_tab(R) -> Name = R#retainer.cp_name, @@ -1151,7 +1152,7 @@ do_change_copy(Cp, Tab, FromType, ToType) -> Cp#checkpoint_args{retainers = Rs, nodes = writers(Rs)}. check_iter(From, Iter) when Iter#iter.pid == From -> - retainer_fixtable(Iter#iter.oid_tab, false), + ?SAFE(retainer_fixtable(Iter#iter.oid_tab, false)), false; check_iter(_From, _Iter) -> true. diff --git a/lib/mnesia/src/mnesia_event.erl b/lib/mnesia/src/mnesia_event.erl index 7320d381ea..6f7531245f 100644 --- a/lib/mnesia/src/mnesia_event.erl +++ b/lib/mnesia/src/mnesia_event.erl @@ -114,7 +114,8 @@ handle_table_event({Oper, Record, TransId}, State) -> handle_system_event({mnesia_checkpoint_activated, _Checkpoint}, State) -> {ok, State}; -handle_system_event({mnesia_checkpoint_deactivated, _Checkpoint}, State) -> +handle_system_event({mnesia_checkpoint_deactivated, Checkpoint}, State) -> + report_error("Checkpoint '~p' has been deactivated, last table copy deleted.\n",[Checkpoint]), {ok, State}; handle_system_event({mnesia_up, Node}, State) -> -- cgit v1.2.3