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Added short sleep between calls to enter_toi().

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This commit is contained in:
Teemu Ollakka
2019-09-04 16:43:01 +03:00
parent aaa92e130b
commit e700ce8c79
3 changed files with 46 additions and 28 deletions
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2
include/wsrep/chrono.hpp
View File

@ -24,7 +24,7 @@
*/
#ifndef WSREP_CHRONO_HPP
#define WSREP_CHORNO_HPP
#define WSREP_CHRONO_HPP
#include <chrono>

9
include/wsrep/client_state.hpp
View File

@ -1008,6 +1008,15 @@ namespace wsrep
enum wsrep::provider::status status =
wsrep::provider::success);
// Poll provider::enter_toi() until return status from provider
// does not indicate certification failure, timeout expires
// or client is interrupted.
enum wsrep::provider::status
poll_enter_toi(wsrep::unique_lock<wsrep::mutex>& lock,
const wsrep::key_array& keys,
const wsrep::const_buffer& buffer,
int flags,
std::chrono::time_point<wsrep::clock> wait_until);
void enter_toi_common(wsrep::unique_lock<wsrep::mutex>&);
void leave_toi_common();

63
src/client_state.cpp
View File

@ -21,6 +21,7 @@
#include "wsrep/compiler.hpp"
#include "wsrep/logger.hpp"
#include <unistd.h> // usleep()
#include <sstream>
#include <iostream>
@ -330,6 +331,32 @@ void wsrep::client_state::disable_streaming()
// TOI //
//////////////////////////////////////////////////////////////////////////////
enum wsrep::provider::status
wsrep::client_state::poll_enter_toi(
wsrep::unique_lock<wsrep::mutex>& lock,
const wsrep::key_array& keys,
const wsrep::const_buffer& buffer,
int flags,
std::chrono::time_point<wsrep::clock> wait_until)
{
enum wsrep::provider::status status;
do
{
lock.unlock();
status = provider().enter_toi(id_, keys, buffer, toi_meta_, flags);
if (status == wsrep::provider::error_certification_failed)
{
::usleep(100000);
}
lock.lock();
}
while (status == wsrep::provider::error_certification_failed &&
wait_until.time_since_epoch().count() &&
wait_until < wsrep::clock::now() &&
not client_service_.interrupted(lock));
return status;
}
void wsrep::client_state::enter_toi_common(
wsrep::unique_lock<wsrep::mutex>& lock)
{
@ -347,22 +374,13 @@ int wsrep::client_state::enter_toi_local(const wsrep::key_array& keys,
assert(mode_ == m_local);
int ret;
enum wsrep::provider::status status;
wsrep::unique_lock<wsrep::mutex> lock(mutex_);
// Poll until timeout expires or the client is interrupted.
do
{
lock.unlock();
status = provider().enter_toi(id_, keys, buffer, toi_meta_,
wsrep::provider::flag::start_transaction |
wsrep::provider::flag::commit);
lock.lock();
}
while (status == wsrep::provider::error_certification_failed &&
wait_until.time_since_epoch().count() &&
wait_until < wsrep::clock::now() &&
not client_service_.interrupted(lock));
auto const status(poll_enter_toi(
lock, keys, buffer,
wsrep::provider::flag::start_transaction |
wsrep::provider::flag::commit,
wait_until));
switch (status)
{
case wsrep::provider::success:
@ -485,20 +503,11 @@ int wsrep::client_state::begin_nbo_phase_one(
assert(mode_ == m_local);
assert(toi_mode_ == m_undefined);
enum wsrep::provider::status status;
// Poll until timeout expires or the client is interrupted.
do
{
lock.unlock();
status = provider().enter_toi(id_, keys, buffer, toi_meta_,
wsrep::provider::flag::start_transaction);
lock.lock();
}
while (status == wsrep::provider::error_certification_failed &&
wait_until.time_since_epoch().count() &&
wait_until < wsrep::clock::now() &&
not client_service_.interrupted(lock));
int ret;
auto const status(poll_enter_toi(
lock, keys, buffer,
wsrep::provider::flag::start_transaction,
wait_until));
switch (status)
{
case wsrep::provider::success: