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#include <Disks/DiskLocalCheckThread.h>
#include <Disks/DiskLocal.h>
#include <Interpreters/Context.h>
#include <Common/logger_useful.h>
namespace DB
{
static const auto DISK_CHECK_ERROR_SLEEP_MS = 1000;
static const auto DISK_CHECK_ERROR_RETRY_TIME = 3;
DiskLocalCheckThread::DiskLocalCheckThread(DiskLocal * disk_, ContextPtr context_, UInt64 local_disk_check_period_ms)
: WithContext(context_)
, disk(std::move(disk_))
, check_period_ms(local_disk_check_period_ms)
, log(&Poco::Logger::get(fmt::format("DiskLocalCheckThread({})", disk->getName())))
{
task = getContext()->getSchedulePool().createTask(log->name(), [this] { run(); });
}
void DiskLocalCheckThread::startup()
{
need_stop = false;
retry = 0;
task->activateAndSchedule();
}
void DiskLocalCheckThread::run()
{
if (need_stop)
return;
bool can_read = disk->canRead();
bool can_write = disk->canWrite();
if (can_read)
{
if (disk->broken)
LOG_INFO(log, "Disk {0} seems to be fine. It can be recovered using `SYSTEM RESTART DISK {0}`", disk->getName());
retry = 0;
if (can_write)
disk->readonly = false;
else
{
disk->readonly = true;
LOG_INFO(log, "Disk {} is readonly", disk->getName());
}
task->scheduleAfter(check_period_ms);
}
else if (!disk->broken && retry < DISK_CHECK_ERROR_RETRY_TIME)
{
++retry;
task->scheduleAfter(DISK_CHECK_ERROR_SLEEP_MS);
}
else
{
retry = 0;
if (!disk->broken)
LOG_ERROR(log, "Disk {} marked as broken", disk->getName());
else
LOG_INFO(log, "Disk {} is still broken", disk->getName());
disk->broken = true;
task->scheduleAfter(check_period_ms);
}
}
void DiskLocalCheckThread::shutdown()
{
need_stop = true;
task->deactivate();
LOG_TRACE(log, "DiskLocalCheck thread finished");
}
}
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