com.netflix.astyanax.cql

Class JavaDriverConnectionPoolMonitorImpl

java.lang.Object

com.netflix.astyanax.cql.JavaDriverConnectionPoolMonitorImpl

All Implemented Interfaces:

com.netflix.astyanax.connectionpool.ConnectionPoolMonitor

public class JavaDriverConnectionPoolMonitorImpl
extends java.lang.Object
implements com.netflix.astyanax.connectionpool.ConnectionPoolMonitor

Constructor Summary

Constructors

Constructor and Description
JavaDriverConnectionPoolMonitorImpl()

Method Summary

Modifier and Type	Method and Description
long	getBadRequestCount() Returns the number of requests that returned errors not accounted for by another metric.
long	getConnectionBorrowedCount()
long	getConnectionClosedCount()
long	getConnectionCreatedCount()
long	getConnectionCreateFailedCount() Returns the number of connection to Cassandra nodes errors.
long	getConnectionReturnedCount()
long	getFailoverCount()
long	getHostActiveCount() Returns the number of Cassandra hosts the driver is currently connected to (that is have at least one connection opened to).
long	getHostAddedCount()
long	getHostCount() Returns the number of Cassandra hosts currently known by the driver (that is whether they are currently considered up or down).
long	getHostDownCount()
long	getHostRemovedCount()
java.util.Map<com.netflix.astyanax.connectionpool.Host,com.netflix.astyanax.connectionpool.HostStats>	getHostStats()
long	getInterruptedCount()
com.codahale.metrics.MetricRegistryListener	getMetricsRegistryListener()
long	getNoHostCount()
long	getNumOpenConnections() Returns the total number of currently opened connections to Cassandra hosts.
long	getOperationFailureCount()
long	getOperationSuccessCount()
long	getOperationTimeoutCount()
long	getPoolExhaustedTimeoutCount()
long	getReadTimeouts() Returns the number of read requests that returned a timeout (independently of the final decision taken by the RetryPolicy).
long	getSocketTimeoutCount() Returns the number of times a request was ignored due to the RetryPolicy, for example due to timeouts or unavailability.
long	getTransportErrorCount()
long	getUnknownErrorCount() Returns the number of times a request was retried due to the RetryPolicy.
long	getWriteTimeouts() Returns the number of write requests that returned a timeout (independently of the final decision taken by the RetryPolicy).
void	incConnectionBorrowed(com.netflix.astyanax.connectionpool.Host host, long delay)
void	incConnectionClosed(com.netflix.astyanax.connectionpool.Host host, java.lang.Exception reason)
void	incConnectionCreated(com.netflix.astyanax.connectionpool.Host host)
void	incConnectionCreateFailed(com.netflix.astyanax.connectionpool.Host host, java.lang.Exception reason)
void	incConnectionReturned(com.netflix.astyanax.connectionpool.Host host)
void	incFailover(com.netflix.astyanax.connectionpool.Host host, java.lang.Exception reason)
void	incOperationFailure(com.netflix.astyanax.connectionpool.Host host, java.lang.Exception reason)
void	incOperationSuccess(com.netflix.astyanax.connectionpool.Host host, long latency)
long	notFoundCount() Returns the number of requests that returned an unavailable exception (independently of the final decision taken by the RetryPolicy).
void	onHostAdded(com.netflix.astyanax.connectionpool.Host host, com.netflix.astyanax.connectionpool.HostConnectionPool<?> pool)
void	onHostDown(com.netflix.astyanax.connectionpool.Host host, java.lang.Exception reason)
void	onHostReactivated(com.netflix.astyanax.connectionpool.Host host, com.netflix.astyanax.connectionpool.HostConnectionPool<?> pool)
void	onHostRemoved(com.netflix.astyanax.connectionpool.Host host)
JavaDriverConnectionPoolMonitorImpl	withJavaDriverMetricsRegistry(com.codahale.metrics.MetricRegistryListener metricsRegListener)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

JavaDriverConnectionPoolMonitorImpl

public JavaDriverConnectionPoolMonitorImpl()

Method Detail

withJavaDriverMetricsRegistry

public JavaDriverConnectionPoolMonitorImpl withJavaDriverMetricsRegistry(com.codahale.metrics.MetricRegistryListener metricsRegListener)

getMetricsRegistryListener

public com.codahale.metrics.MetricRegistryListener getMetricsRegistryListener()

getHostCount

public long getHostCount()

Returns the number of Cassandra hosts currently known by the driver (that is whether they are currently considered up or down).

Specified by:

getHostCount in interface com.netflix.astyanax.connectionpool.ConnectionPoolMonitor

Returns:

the number of Cassandra hosts currently known by the driver.

getHostActiveCount

public long getHostActiveCount()

Returns the number of Cassandra hosts the driver is currently connected to (that is have at least one connection opened to).

Specified by:

getHostActiveCount in interface com.netflix.astyanax.connectionpool.ConnectionPoolMonitor

Returns:

the number of Cassandra hosts the driver is currently connected to.

getNumOpenConnections

public long getNumOpenConnections()

Returns the total number of currently opened connections to Cassandra hosts.

Returns:

The total number of currently opened connections to Cassandra hosts.

getConnectionCreateFailedCount

public long getConnectionCreateFailedCount()

Returns the number of connection to Cassandra nodes errors.

This represents the number of times that a request to a Cassandra node has failed due to a connection problem. This thus also corresponds to how often the driver had to pick a fallback host for a request.

You can expect a few connection errors when a Cassandra node fails (or is stopped) ,but if that number grows continuously you likely have a problem.

Specified by:

getConnectionCreateFailedCount in interface com.netflix.astyanax.connectionpool.ConnectionPoolMonitor

Returns:

the number of connection to Cassandra nodes errors.

getWriteTimeouts

public long getWriteTimeouts()

Returns the number of write requests that returned a timeout (independently of the final decision taken by the RetryPolicy).

Returns:

the number of write timeout.

getReadTimeouts

public long getReadTimeouts()

Returns the number of read requests that returned a timeout (independently of the final decision taken by the RetryPolicy).

Returns:

the number of read timeout.

getBadRequestCount

public long getBadRequestCount()

Returns the number of requests that returned errors not accounted for by another metric. This includes all types of invalid requests.

Specified by:

getBadRequestCount in interface com.netflix.astyanax.connectionpool.ConnectionPoolMonitor

Returns:

the number of requests errors not accounted by another metric.

notFoundCount

public long notFoundCount()

Returns the number of requests that returned an unavailable exception (independently of the final decision taken by the RetryPolicy).

Specified by:

notFoundCount in interface com.netflix.astyanax.connectionpool.ConnectionPoolMonitor

Returns:

the number of unavailable exceptions.

getSocketTimeoutCount

public long getSocketTimeoutCount()

Returns the number of times a request was ignored due to the RetryPolicy, for example due to timeouts or unavailability.

Specified by:

getSocketTimeoutCount in interface com.netflix.astyanax.connectionpool.ConnectionPoolMonitor

Returns:

the number of times a request was ignored due to the RetryPolicy.

getUnknownErrorCount

public long getUnknownErrorCount()

Returns the number of times a request was retried due to the RetryPolicy.

Specified by:

getUnknownErrorCount in interface com.netflix.astyanax.connectionpool.ConnectionPoolMonitor

Returns:

the number of times a requests was retried due to the RetryPolicy.

incOperationFailure

public void incOperationFailure(com.netflix.astyanax.connectionpool.Host host,
                                java.lang.Exception reason)

Specified by:

incOperationFailure in interface com.netflix.astyanax.connectionpool.ConnectionPoolMonitor

getOperationFailureCount

public long getOperationFailureCount()

Specified by:

getOperationFailureCount in interface com.netflix.astyanax.connectionpool.ConnectionPoolMonitor

incFailover

public void incFailover(com.netflix.astyanax.connectionpool.Host host,
                        java.lang.Exception reason)

Specified by:

incFailover in interface com.netflix.astyanax.connectionpool.ConnectionPoolMonitor

getFailoverCount

public long getFailoverCount()

Specified by:

getFailoverCount in interface com.netflix.astyanax.connectionpool.ConnectionPoolMonitor

incOperationSuccess

public void incOperationSuccess(com.netflix.astyanax.connectionpool.Host host,
                                long latency)

Specified by:

incOperationSuccess in interface com.netflix.astyanax.connectionpool.ConnectionPoolMonitor

getOperationSuccessCount

public long getOperationSuccessCount()

Specified by:

getOperationSuccessCount in interface com.netflix.astyanax.connectionpool.ConnectionPoolMonitor

incConnectionCreated

public void incConnectionCreated(com.netflix.astyanax.connectionpool.Host host)

Specified by:

incConnectionCreated in interface com.netflix.astyanax.connectionpool.ConnectionPoolMonitor

getConnectionCreatedCount

public long getConnectionCreatedCount()

Specified by:

getConnectionCreatedCount in interface com.netflix.astyanax.connectionpool.ConnectionPoolMonitor

incConnectionClosed

public void incConnectionClosed(com.netflix.astyanax.connectionpool.Host host,
                                java.lang.Exception reason)

Specified by:

incConnectionClosed in interface com.netflix.astyanax.connectionpool.ConnectionPoolMonitor

getConnectionClosedCount

public long getConnectionClosedCount()

Specified by:

getConnectionClosedCount in interface com.netflix.astyanax.connectionpool.ConnectionPoolMonitor

incConnectionCreateFailed

public void incConnectionCreateFailed(com.netflix.astyanax.connectionpool.Host host,
                                      java.lang.Exception reason)

Specified by:

incConnectionCreateFailed in interface com.netflix.astyanax.connectionpool.ConnectionPoolMonitor

incConnectionBorrowed

public void incConnectionBorrowed(com.netflix.astyanax.connectionpool.Host host,
                                  long delay)

Specified by:

incConnectionBorrowed in interface com.netflix.astyanax.connectionpool.ConnectionPoolMonitor

getConnectionBorrowedCount

public long getConnectionBorrowedCount()

Specified by:

getConnectionBorrowedCount in interface com.netflix.astyanax.connectionpool.ConnectionPoolMonitor

getConnectionReturnedCount

public long getConnectionReturnedCount()

Specified by:

getConnectionReturnedCount in interface com.netflix.astyanax.connectionpool.ConnectionPoolMonitor

incConnectionReturned

public void incConnectionReturned(com.netflix.astyanax.connectionpool.Host host)

Specified by:

incConnectionReturned in interface com.netflix.astyanax.connectionpool.ConnectionPoolMonitor

getPoolExhaustedTimeoutCount

public long getPoolExhaustedTimeoutCount()

Specified by:

getPoolExhaustedTimeoutCount in interface com.netflix.astyanax.connectionpool.ConnectionPoolMonitor

getOperationTimeoutCount

public long getOperationTimeoutCount()

Specified by:

getOperationTimeoutCount in interface com.netflix.astyanax.connectionpool.ConnectionPoolMonitor

getNoHostCount

public long getNoHostCount()

Specified by:

getNoHostCount in interface com.netflix.astyanax.connectionpool.ConnectionPoolMonitor

getInterruptedCount

public long getInterruptedCount()

Specified by:

getInterruptedCount in interface com.netflix.astyanax.connectionpool.ConnectionPoolMonitor

getTransportErrorCount

public long getTransportErrorCount()

Specified by:

getTransportErrorCount in interface com.netflix.astyanax.connectionpool.ConnectionPoolMonitor

getHostAddedCount

public long getHostAddedCount()

Specified by:

getHostAddedCount in interface com.netflix.astyanax.connectionpool.ConnectionPoolMonitor

getHostRemovedCount

public long getHostRemovedCount()

Specified by:

getHostRemovedCount in interface com.netflix.astyanax.connectionpool.ConnectionPoolMonitor

getHostDownCount

public long getHostDownCount()

Specified by:

getHostDownCount in interface com.netflix.astyanax.connectionpool.ConnectionPoolMonitor

onHostAdded

public void onHostAdded(com.netflix.astyanax.connectionpool.Host host,
                        com.netflix.astyanax.connectionpool.HostConnectionPool<?> pool)

Specified by:

onHostAdded in interface com.netflix.astyanax.connectionpool.ConnectionPoolMonitor

onHostRemoved

public void onHostRemoved(com.netflix.astyanax.connectionpool.Host host)

Specified by:

onHostRemoved in interface com.netflix.astyanax.connectionpool.ConnectionPoolMonitor

onHostDown

public void onHostDown(com.netflix.astyanax.connectionpool.Host host,
                       java.lang.Exception reason)

Specified by:

onHostDown in interface com.netflix.astyanax.connectionpool.ConnectionPoolMonitor

onHostReactivated

public void onHostReactivated(com.netflix.astyanax.connectionpool.Host host,
                              com.netflix.astyanax.connectionpool.HostConnectionPool<?> pool)

Specified by:

onHostReactivated in interface com.netflix.astyanax.connectionpool.ConnectionPoolMonitor

getHostStats

public java.util.Map<com.netflix.astyanax.connectionpool.Host,com.netflix.astyanax.connectionpool.HostStats> getHostStats()

Specified by:

getHostStats in interface com.netflix.astyanax.connectionpool.ConnectionPoolMonitor