Files
scylladb/tests/mvcc_test.cc
2017-09-25 11:21:58 +02:00

426 lines
15 KiB
C++

/*
* Copyright (C) 2017 ScyllaDB
*/
/*
* This file is part of Scylla.
*
* Scylla is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Scylla is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Scylla. If not, see <http://www.gnu.org/licenses/>.
*/
#include <boost/range/adaptor/transformed.hpp>
#include <boost/range/algorithm/copy.hpp>
#include <boost/range/algorithm_ext/push_back.hpp>
#include <seastar/core/thread.hh>
#include "partition_version.hh"
#include "partition_snapshot_row_cursor.hh"
#include "disk-error-handler.hh"
#include "tests/test-utils.hh"
#include "tests/mutation_assertions.hh"
#include "tests/mutation_reader_assertions.hh"
#include "tests/simple_schema.hh"
thread_local disk_error_signal_type commit_error;
thread_local disk_error_signal_type general_disk_error;
using namespace std::chrono_literals;
SEASTAR_TEST_CASE(test_apply_to_incomplete) {
return seastar::async([] {
logalloc::region r;
simple_schema table;
auto&& s = *table.schema();
auto new_mutation = [&] {
return mutation(table.make_pkey(0), table.schema());
};
auto mutation_with_row = [&] (clustering_key ck) {
auto m = new_mutation();
table.add_row(m, ck, "v");
return m;
};
// FIXME: There is no assert_that() for mutation_partition
auto assert_equal = [&] (mutation_partition mp1, mutation_partition mp2) {
auto key = table.make_pkey(0);
assert_that(mutation(table.schema(), key, std::move(mp1)))
.is_equal_to(mutation(table.schema(), key, std::move(mp2)));
};
auto apply = [&] (partition_entry& e, const mutation& m) {
e.apply_to_incomplete(s, partition_entry(m.partition()), s);
};
auto ck1 = table.make_ckey(1);
auto ck2 = table.make_ckey(2);
BOOST_TEST_MESSAGE("Check that insert falling into discontinuous range is dropped");
with_allocator(r.allocator(), [&] {
logalloc::reclaim_lock l(r);
auto e = partition_entry(mutation_partition::make_incomplete(s));
auto m = new_mutation();
table.add_row(m, ck1, "v");
apply(e, m);
assert_equal(e.squashed(s), mutation_partition::make_incomplete(s));
});
BOOST_TEST_MESSAGE("Check that continuity from latest version wins");
with_allocator(r.allocator(), [&] {
logalloc::reclaim_lock l(r);
auto m1 = mutation_with_row(ck2);
auto e = partition_entry(m1.partition());
auto snap1 = e.read(r, table.schema());
auto m2 = mutation_with_row(ck2);
apply(e, m2);
partition_version* latest = &*e.version();
partition_version* prev = latest->next();
for (rows_entry& row : prev->partition().clustered_rows()) {
row.set_continuous(is_continuous::no);
}
auto m3 = mutation_with_row(ck1);
apply(e, m3);
assert_equal(e.squashed(s), (m2 + m3).partition());
// Check that snapshot data is not stolen when its entry is applied
auto e2 = partition_entry(mutation_partition(table.schema()));
e2.apply_to_incomplete(s, std::move(e), s);
assert_equal(snap1->squashed(), m1.partition());
assert_equal(e2.squashed(s), (m2 + m3).partition());
});
});
}
SEASTAR_TEST_CASE(test_schema_upgrade_preserves_continuity) {
return seastar::async([] {
logalloc::region r;
simple_schema table;
auto new_mutation = [&] {
return mutation(table.make_pkey(0), table.schema());
};
auto mutation_with_row = [&] (clustering_key ck) {
auto m = new_mutation();
table.add_row(m, ck, "v");
return m;
};
// FIXME: There is no assert_that() for mutation_partition
auto assert_entry_equal = [&] (schema_ptr e_schema, partition_entry& e, mutation m) {
auto key = table.make_pkey(0);
assert_that(mutation(e_schema, key, e.squashed(*e_schema)))
.is_equal_to(m)
.has_same_continuity(m);
};
auto apply = [&] (schema_ptr e_schema, partition_entry& e, const mutation& m) {
e.apply_to_incomplete(*e_schema, partition_entry(m.partition()), *m.schema());
};
with_allocator(r.allocator(), [&] {
logalloc::reclaim_lock l(r);
auto m1 = mutation_with_row(table.make_ckey(1));
m1.partition().clustered_rows().begin()->set_continuous(is_continuous::no);
m1.partition().set_static_row_continuous(false);
m1.partition().ensure_last_dummy(*m1.schema());
auto e = partition_entry(m1.partition());
auto rd1 = e.read(r, table.schema());
auto m2 = mutation_with_row(table.make_ckey(3));
m2.partition().ensure_last_dummy(*m2.schema());
apply(table.schema(), e, m2);
auto new_schema = schema_builder(table.schema()).with_column("__new_column", utf8_type).build();
e.upgrade(table.schema(), new_schema);
rd1 = {};
assert_entry_equal(new_schema, e, m1 + m2);
auto m3 = mutation_with_row(table.make_ckey(2));
apply(new_schema, e, m3);
auto m4 = mutation_with_row(table.make_ckey(0));
table.add_static_row(m4, "s_val");
apply(new_schema, e, m4);
assert_entry_equal(new_schema, e, m1 + m2 + m3);
});
});
}
SEASTAR_TEST_CASE(test_full_eviction_marks_affected_range_as_discontinuous) {
return seastar::async([] {
logalloc::region r;
with_allocator(r.allocator(), [&] {
logalloc::reclaim_lock l(r);
simple_schema table;
auto&& s = *table.schema();
auto ck1 = table.make_ckey(1);
auto ck2 = table.make_ckey(2);
auto e = partition_entry(mutation_partition(table.schema()));
auto t = table.new_tombstone();
auto&& p1 = e.open_version(s).partition();
p1.clustered_row(s, ck2);
p1.apply(t);
auto snap1 = e.read(r, table.schema());
auto&& p2 = e.open_version(s).partition();
p2.clustered_row(s, ck1);
auto snap2 = e.read(r, table.schema());
e.evict();
BOOST_REQUIRE(snap1->squashed().fully_discontinuous(s, position_range(
position_in_partition::before_all_clustered_rows(),
position_in_partition::after_key(ck2)
)));
BOOST_REQUIRE(snap2->squashed().fully_discontinuous(s, position_range(
position_in_partition::before_all_clustered_rows(),
position_in_partition::after_key(ck2)
)));
BOOST_REQUIRE(!snap1->squashed().static_row_continuous());
BOOST_REQUIRE(!snap2->squashed().static_row_continuous());
BOOST_REQUIRE_EQUAL(snap1->squashed().partition_tombstone(), t);
BOOST_REQUIRE_EQUAL(snap2->squashed().partition_tombstone(), t);
});
});
}
SEASTAR_TEST_CASE(test_eviction_with_active_reader) {
return seastar::async([] {
logalloc::region r;
with_allocator(r.allocator(), [&] {
simple_schema table;
auto&& s = *table.schema();
auto ck1 = table.make_ckey(1);
auto ck2 = table.make_ckey(2);
auto e = partition_entry(mutation_partition(table.schema()));
auto&& p1 = e.open_version(s).partition();
p1.clustered_row(s, ck2);
p1.ensure_last_dummy(s); // needed by partition_snapshot_row_cursor
auto snap1 = e.read(r, table.schema());
auto&& p2 = e.open_version(s).partition();
p2.clustered_row(s, ck1);
auto snap2 = e.read(r, table.schema());
partition_snapshot_row_cursor cursor(s, *snap2);
cursor.advance_to(position_in_partition_view::before_all_clustered_rows());
BOOST_REQUIRE(cursor.continuous());
BOOST_REQUIRE(cursor.key().equal(s, ck1));
e.evict();
cursor.maybe_refresh();
do {
BOOST_REQUIRE(!cursor.continuous());
BOOST_REQUIRE(cursor.dummy());
} while (cursor.next());
});
});
}
SEASTAR_TEST_CASE(test_partition_snapshot_row_cursor) {
return seastar::async([] {
logalloc::region r;
with_allocator(r.allocator(), [&] {
simple_schema table;
auto&& s = *table.schema();
auto e = partition_entry(mutation_partition(table.schema()));
auto snap1 = e.read(r, table.schema());
{
auto&& p1 = snap1->version()->partition();
p1.clustered_row(s, table.make_ckey(0), is_dummy::no, is_continuous::no);
p1.clustered_row(s, table.make_ckey(1), is_dummy::no, is_continuous::no);
p1.clustered_row(s, table.make_ckey(2), is_dummy::no, is_continuous::no);
p1.clustered_row(s, table.make_ckey(3), is_dummy::no, is_continuous::no);
p1.clustered_row(s, table.make_ckey(6), is_dummy::no, is_continuous::no);
p1.ensure_last_dummy(s);
}
auto snap2 = e.read(r, table.schema(), 1);
partition_snapshot_row_cursor cur(s, *snap2);
position_in_partition::equal_compare eq(s);
{
logalloc::reclaim_lock rl(r);
BOOST_REQUIRE(cur.advance_to(table.make_ckey(0)));
BOOST_REQUIRE(eq(cur.position(), table.make_ckey(0)));
BOOST_REQUIRE(!cur.continuous());
}
r.full_compaction();
{
logalloc::reclaim_lock rl(r);
BOOST_REQUIRE(cur.maybe_refresh());
BOOST_REQUIRE(eq(cur.position(), table.make_ckey(0)));
BOOST_REQUIRE(!cur.continuous());
BOOST_REQUIRE(cur.next());
BOOST_REQUIRE(eq(cur.position(), table.make_ckey(1)));
BOOST_REQUIRE(!cur.continuous());
BOOST_REQUIRE(cur.next());
BOOST_REQUIRE(eq(cur.position(), table.make_ckey(2)));
BOOST_REQUIRE(!cur.continuous());
}
{
logalloc::reclaim_lock rl(r);
BOOST_REQUIRE(cur.maybe_refresh());
BOOST_REQUIRE(eq(cur.position(), table.make_ckey(2)));
BOOST_REQUIRE(!cur.continuous());
}
{
auto&& p2 = snap2->version()->partition();
p2.clustered_row(s, table.make_ckey(2), is_dummy::no, is_continuous::yes);
}
{
logalloc::reclaim_lock rl(r);
BOOST_REQUIRE(cur.maybe_refresh());
BOOST_REQUIRE(eq(cur.position(), table.make_ckey(2)));
BOOST_REQUIRE(cur.continuous());
BOOST_REQUIRE(cur.next());
BOOST_REQUIRE(eq(cur.position(), table.make_ckey(3)));
BOOST_REQUIRE(!cur.continuous());
}
{
auto&& p2 = snap2->version()->partition();
p2.clustered_row(s, table.make_ckey(4), is_dummy::no, is_continuous::yes);
}
{
logalloc::reclaim_lock rl(r);
BOOST_REQUIRE(cur.maybe_refresh());
BOOST_REQUIRE(eq(cur.position(), table.make_ckey(3)));
BOOST_REQUIRE(cur.next());
BOOST_REQUIRE(eq(cur.position(), table.make_ckey(4)));
BOOST_REQUIRE(cur.continuous());
BOOST_REQUIRE(cur.next());
BOOST_REQUIRE(eq(cur.position(), table.make_ckey(6)));
BOOST_REQUIRE(!cur.continuous());
BOOST_REQUIRE(cur.next());
BOOST_REQUIRE(eq(cur.position(), position_in_partition::after_all_clustered_rows()));
BOOST_REQUIRE(cur.continuous());
BOOST_REQUIRE(!cur.next());
}
{
logalloc::reclaim_lock rl(r);
BOOST_REQUIRE(cur.advance_to(table.make_ckey(4)));
BOOST_REQUIRE(cur.continuous());
}
{
logalloc::reclaim_lock rl(r);
BOOST_REQUIRE(cur.maybe_refresh());
BOOST_REQUIRE(eq(cur.position(), table.make_ckey(4)));
BOOST_REQUIRE(cur.continuous());
}
{
auto&& p2 = snap2->version()->partition();
p2.clustered_row(s, table.make_ckey(5), is_dummy::no, is_continuous::yes);
}
{
logalloc::reclaim_lock rl(r);
BOOST_REQUIRE(cur.maybe_refresh());
BOOST_REQUIRE(eq(cur.position(), table.make_ckey(4)));
BOOST_REQUIRE(cur.continuous());
BOOST_REQUIRE(cur.next());
BOOST_REQUIRE(eq(cur.position(), table.make_ckey(5)));
BOOST_REQUIRE(cur.continuous());
BOOST_REQUIRE(cur.next());
BOOST_REQUIRE(eq(cur.position(), table.make_ckey(6)));
BOOST_REQUIRE(!cur.continuous());
}
{
logalloc::reclaim_lock rl(r);
BOOST_REQUIRE(cur.advance_to(table.make_ckey(4)));
BOOST_REQUIRE(cur.continuous());
}
e.evict();
{
auto&& p2 = snap2->version()->partition();
p2.clustered_row(s, table.make_ckey(5), is_dummy::no, is_continuous::yes);
}
{
logalloc::reclaim_lock rl(r);
BOOST_REQUIRE(!cur.maybe_refresh());
BOOST_REQUIRE(eq(cur.position(), table.make_ckey(5)));
BOOST_REQUIRE(cur.continuous());
}
{
logalloc::reclaim_lock rl(r);
BOOST_REQUIRE(!cur.advance_to(table.make_ckey(4)));
BOOST_REQUIRE(eq(cur.position(), table.make_ckey(5)));
BOOST_REQUIRE(cur.continuous());
}
{
logalloc::reclaim_lock rl(r);
BOOST_REQUIRE(cur.maybe_refresh());
BOOST_REQUIRE(eq(cur.position(), table.make_ckey(5)));
BOOST_REQUIRE(cur.continuous());
}
});
});
}