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MXS-2219 Add health check threshold

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Make it configurable how many times a node may fail to respond
on the health check port before it is considered to be down.
This commit is contained in:
Johan Wikman
2019-01-14 15:10:20 +02:00
parent 880842e55d
commit 89c059411d
6 changed files with 52 additions and 5 deletions
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22
server/modules/monitor/clustrixmon/clustrixnodeinfo.hh
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@ -23,11 +23,14 @@ public:
ClustrixNodeInfo(int id,
const std::string& ip,
int mysql_port,
int health_port)
int health_port,
int health_check_threshold)
: m_id(id)
, m_ip(ip)
, m_mysql_port(mysql_port)
, m_health_port(health_port)
, m_health_check_threshold(health_check_threshold)
, m_nRunning(m_health_check_threshold)
{
}
@ -53,12 +56,22 @@ public:
bool is_running() const
{
return m_is_running;
return m_nRunning > 0;
}
void set_running(bool running)
{
m_is_running = running;
if (running)
{
m_nRunning = m_health_check_threshold;
}
else
{
if (m_nRunning > 0)
{
--m_nRunning;
}
}
}
std::string to_string() const
@ -78,7 +91,8 @@ private:
std::string m_ip;
int m_mysql_port;
int m_health_port;
bool m_is_running { true }; // Assume running, until proven otherwise.
int m_health_check_threshold;
int m_nRunning;
};
inline std::ostream& operator << (std::ostream& out, const ClustrixNodeInfo& x)