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codership/wsrep-lib#104 Error voting support

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- populate and pass real error description buffer to provider in case
   of applying error
 - return 0 from server_state::on_apply() if error voting confirmed
   consistency
 - remove fragments and rollback after fragment applying failure
 - always release streaming applier on commit or rollback
This commit is contained in:
Alexey Yurchenko
2019-04-30 19:00:48 +03:00
parent fd66bdef0b
commit 0f676bd893
22 changed files with 470 additions and 187 deletions
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17
test/mock_high_priority_service.hpp
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@ -1,5 +1,5 @@
/*
* Copyright (C) 2018 Codership Oy <info@codership.com>
* Copyright (C) 2018-2019 Codership Oy <info@codership.com>
*
* This file is part of wsrep-lib.
*
@ -47,7 +47,8 @@ namespace wsrep
{ return client_state_->transaction(); }
int adopt_transaction(const wsrep::transaction&) WSREP_OVERRIDE;
int apply_write_set(const wsrep::ws_meta&,
const wsrep::const_buffer&) WSREP_OVERRIDE;
const wsrep::const_buffer&,
wsrep::mutable_buffer&) WSREP_OVERRIDE;
int append_fragment_and_commit(
const wsrep::ws_handle&,
const wsrep::ws_meta&,
@ -59,21 +60,23 @@ namespace wsrep
WSREP_OVERRIDE;
int rollback(const wsrep::ws_handle&, const wsrep::ws_meta&) WSREP_OVERRIDE;
int apply_toi(const wsrep::ws_meta&,
const wsrep::const_buffer&) WSREP_OVERRIDE;
const wsrep::const_buffer&,
wsrep::mutable_buffer&) WSREP_OVERRIDE;
void adopt_apply_error(wsrep::mutable_buffer& err) WSREP_OVERRIDE;
void after_apply() WSREP_OVERRIDE;
void store_globals() WSREP_OVERRIDE { }
void reset_globals() WSREP_OVERRIDE { }
void switch_execution_context(wsrep::high_priority_service&)
WSREP_OVERRIDE { }
int log_dummy_write_set(const wsrep::ws_handle&,
const wsrep::ws_meta&)
WSREP_OVERRIDE { return 0; }
const wsrep::ws_meta&,
wsrep::mutable_buffer&) WSREP_OVERRIDE;
bool is_replaying() const WSREP_OVERRIDE { return replaying_; }
void debug_crash(const char*) WSREP_OVERRIDE { /* Not in unit tests*/}
wsrep::mock_client_state* client_state()
wsrep::client_state& client_state()
{
return client_state_;
return *client_state_;
}
bool do_2pc_;
bool fail_next_applying_;