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codership/wsrep-lib#34 Fixed init first IST processing

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Init first join crashed in

  server: s1 unallowed state transition: joined -> joined

This was due to missing state check for state in on_primary_view()
before changing to joined state. Added appropriate check.

Implemented unit tests for simple IST scenarios.
This commit is contained in:
Teemu Ollakka
2018-12-20 11:11:27 +02:00
parent 76335a3042
commit ac5a4cde0d
2 changed files with 50 additions and 1 deletions
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2
src/server_state.cpp
View File

@ -724,7 +724,7 @@ void wsrep::server_state::on_primary_view(
{
state(lock, s_joiner);
}
if (init_initialized_)
if (init_initialized_ && state_ != s_joined)
{
// If server side has already been initialized,
// skip directly to s_joined.

49
test/server_context_test.cpp
View File

@ -43,6 +43,7 @@ namespace
, cluster_id("1")
, bootstrap_view()
, second_view()
, third_view()
{
wsrep::gtid state_id(cluster_id, wsrep::seqno(0));
std::vector<wsrep::view::member> members;
@ -66,6 +67,17 @@ namespace
1, // protocol version
members);
members.push_back(wsrep::view::member(
wsrep::id("s3"), "s3", ""));
third_view = wsrep::view(wsrep::gtid(cluster_id, wsrep::seqno(2)),
wsrep::seqno(3),
wsrep::view::primary,
0, // capabilities
1, // own index
1, // protocol version
members);
cc.open(cc.id());
BOOST_REQUIRE(cc.before_command() == 0);
}
@ -78,6 +90,7 @@ namespace
wsrep::id cluster_id;
wsrep::view bootstrap_view;
wsrep::view second_view;
wsrep::view third_view;
void connect_in_view(const wsrep::view& view)
{
@ -320,6 +333,25 @@ BOOST_FIXTURE_TEST_CASE(server_state_sst_first_join_with_sst,
BOOST_REQUIRE(ss.state() == wsrep::server_state::s_synced);
}
BOOST_FIXTURE_TEST_CASE(server_state_sst_first_join_with_ist,
sst_first_server_fixture)
{
connect_in_view(second_view);
// Mock server service get_view() gets view from logged_view_.
// Get_view() is called from sst_received(). This emulates the
// case where the view is stored in stable storage.
server_service.logged_view(second_view);
sst_received_action();
ss.on_view(second_view, &hps);
clear_sst_received_action();
BOOST_REQUIRE(ss.state() == wsrep::server_state::s_joined);
ss.on_view(third_view, &hps);
BOOST_REQUIRE(ss.state() == wsrep::server_state::s_joined);
ss.on_sync();
BOOST_REQUIRE(ss.state() == wsrep::server_state::s_synced);
}
// Cycle from synced state to disconnected and back to synced. Server
// storage engines remain initialized.
BOOST_FIXTURE_TEST_CASE(
@ -444,6 +476,23 @@ BOOST_FIXTURE_TEST_CASE(server_state_init_first_join_with_sst,
BOOST_REQUIRE(ss.state() == wsrep::server_state::s_synced);
}
BOOST_FIXTURE_TEST_CASE(server_state_init_first_join_with_ist,
init_first_server_fixture)
{
ss.initialized();
BOOST_REQUIRE(ss.state() == wsrep::server_state::s_initialized);
connect_in_view(second_view);
BOOST_REQUIRE(ss.state() == wsrep::server_state::s_connected);
server_service.logged_view(second_view);
ss.on_view(second_view, &hps);
BOOST_REQUIRE(ss.state() == wsrep::server_state::s_joined);
ss.on_view(third_view, &hps);
BOOST_REQUIRE(ss.state() == wsrep::server_state::s_joined);
ss.on_sync();
BOOST_REQUIRE(ss.state() == wsrep::server_state::s_synced);
}
// Cycle from synced state to disconnected and back to synced. Server
// storage engines remain initialized.
BOOST_FIXTURE_TEST_CASE(