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Code Issues

This should fix bug #7314 : Multitreaded activating indices restarts server process

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This commit is contained in:
Vlad Khorsun 2022-10-07 11:16:39 +03:00
parent fbc1185fbf
commit 86f2550ba3
2 changed files with 111 additions and 94 deletions
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2
src/jrd/dfw.epp
View File

@ -4587,9 +4587,9 @@ static void check_partners(thread_db* tdbb, const USHORT rel_id)
jrd_rel *relation = (*relations)[rel_id];
fb_assert(relation);
relation->rel_flags |= REL_check_partners;
LCK_lock(tdbb, relation->rel_partners_lock, LCK_EX, LCK_WAIT);
LCK_release(tdbb, relation->rel_partners_lock);
relation->rel_flags |= REL_check_partners;
}

31
src/jrd/met.epp
View File

@ -348,9 +348,9 @@ void MET_update_partners(thread_db* tdbb)
continue;
// signal other processes
relation->rel_flags |= REL_check_partners;
LCK_lock(tdbb, relation->rel_partners_lock, LCK_EX, LCK_WAIT);
LCK_release(tdbb, relation->rel_partners_lock);
relation->rel_flags |= REL_check_partners;
}
}
@ -2993,9 +2993,13 @@ jrd_rel* MET_lookup_relation(thread_db* tdbb, const MetaName& name)
if (check_relation != relation)
{
LCK_release(tdbb, check_relation->rel_existence_lock);
if (!(check_relation->rel_flags & REL_check_partners))
{
check_relation->rel_flags |= REL_check_partners;
LCK_release(tdbb, check_relation->rel_partners_lock);
LCK_release(tdbb, check_relation->rel_rescan_lock);
check_relation->rel_flags &= ~REL_check_partners;
}
LCK_release(tdbb, check_relation->rel_rescan_lock);
check_relation->rel_flags |= REL_deleted;
}
}
@ -3076,9 +3080,13 @@ jrd_rel* MET_lookup_relation_id(thread_db* tdbb, SLONG id, bool return_deleted)
if (check_relation != relation)
{
LCK_release(tdbb, check_relation->rel_existence_lock);
if (!(check_relation->rel_flags & REL_check_partners))
{
check_relation->rel_flags |= REL_check_partners;
LCK_release(tdbb, check_relation->rel_partners_lock);
LCK_release(tdbb, check_relation->rel_rescan_lock);
check_relation->rel_flags &= ~REL_check_partners;
}
LCK_release(tdbb, check_relation->rel_rescan_lock);
check_relation->rel_flags |= REL_deleted;
}
}
@ -4493,8 +4501,11 @@ static int partners_ast_relation(void* ast_object)
AsyncContextHolder tdbb(dbb, FB_FUNCTION, relation->rel_partners_lock);
LCK_release(tdbb, relation->rel_partners_lock);
if (!(relation->rel_flags & REL_check_partners))
{
relation->rel_flags |= REL_check_partners;
LCK_release(tdbb, relation->rel_partners_lock);
}
}
catch (const Exception&)
{} // no-op
@ -5067,6 +5078,14 @@ void scan_partners(thread_db* tdbb, jrd_rel* relation)
**************************************/
Attachment* attachment = tdbb->getAttachment();
while (relation->rel_flags & REL_check_partners)
{
relation->rel_flags &= ~REL_check_partners;
LCK_lock(tdbb, relation->rel_partners_lock, LCK_SR, LCK_WAIT);
if (relation->rel_flags & REL_check_partners)
continue;
AutoCacheRequest request(tdbb, irq_foreign1, IRQ_REQUESTS);
frgn* references = &relation->rel_foreign_refs;
int index_number = 0;
@ -5188,9 +5207,7 @@ void scan_partners(thread_db* tdbb, jrd_rel* relation)
}
}
END_FOR
LCK_lock(tdbb, relation->rel_partners_lock, LCK_SR, LCK_WAIT);
relation->rel_flags &= ~REL_check_partners;
}
}