com.netflix.astyanax.connectionpool
Interface ConnectionPoolConfiguration
- All Known Implementing Classes:
- ConnectionPoolConfigurationImpl
public interface ConnectionPoolConfiguration
getLatencyScoreStrategy
LatencyScoreStrategy getLatencyScoreStrategy()
- TODO
getBadHostDetector
BadHostDetector getBadHostDetector()
- TODO
getPort
int getPort()
- Returns:
- Data port to be used when no port is specified to a list of seeds or when
doing a ring describe since the ring describe does not include a host
getName
java.lang.String getName()
- Returns:
- Unique name assigned to this connection pool
getMaxConnsPerHost
int getMaxConnsPerHost()
- Returns:
- Maximum number of connections to allocate for a single host's pool
getInitConnsPerHost
int getInitConnsPerHost()
- Returns:
- Initial number of connections created when a connection pool is started
getMaxConns
int getMaxConns()
- Returns:
- Maximum number of connections in the pool, not used by all connection
pool implementations
getMaxTimeoutWhenExhausted
int getMaxTimeoutWhenExhausted()
- Returns:
- Maximum amount of time to wait for a connection to free up when a
connection pool is exhausted.
getMaxFailoverCount
int getMaxFailoverCount()
- Returns:
- Get the max number of failover attempts
getRetryBackoffStrategy
RetryBackoffStrategy getRetryBackoffStrategy()
- Returns:
- Return the backoff strategy to use.
- See Also:
RetryBackoffStrategy
getHostSelectorStrategy
HostSelectorStrategy getHostSelectorStrategy()
- Returns:
- Return the host selector strategy to use.
- See Also:
HostSelectorStrategy
getSeeds
java.lang.String getSeeds()
- Returns:
- List of comma delimited host:port combinations. If port is not provided
then getPort() will be used by default. This list must contain at least
one valid host other it would not be possible to do a ring describe.
getSeedHosts
java.util.List<Host> getSeedHosts()
- Returns:
- Return a list of Host objects from the list of seeds returned by
getSeeds(). This list must contain at least one valid host other it would
not be possible to do a ring describe.
getLocalDatacenter
java.lang.String getLocalDatacenter()
- Returns:
- Return local datacenter name.
getSocketTimeout
int getSocketTimeout()
- Returns:
- Socket read/write timeout
getConnectTimeout
int getConnectTimeout()
- Returns:
- Socket connect timeout
getConnectionLimiterWindowSize
int getConnectionLimiterWindowSize()
- Returns:
- Window size for limiting the number of connection open requests
getConnectionLimiterMaxPendingCount
int getConnectionLimiterMaxPendingCount()
- Returns:
- Maximum number of connection attempts in a given window
getLatencyAwareWindowSize
int getLatencyAwareWindowSize()
- Returns:
- Latency samples window size for scoring algorithm
getLatencyAwareSentinelCompare
float getLatencyAwareSentinelCompare()
- Returns:
- Sentinel compare value for Phi Accrual
getLatencyAwareBadnessThreshold
float getLatencyAwareBadnessThreshold()
- Returns:
- Return the threshold after which a host will not be considered good
enough for executing operations.
getBlockedThreadThreshold
int getBlockedThreadThreshold()
- Returns:
- Return the threshold for disabling hosts that have nBlockedThreads more than
the least blocked host. The idea here is to quarantine hosts that are slow to respond
and free up connections.
getMinHostInPoolRatio
float getMinHostInPoolRatio()
- Returns:
- Return the ratio for keeping a minimum number of hosts in the pool even if they are slow
or are blocked. For example, a ratio of 0.75 with a connection pool of 12 hosts will
ensure that no more than 4 hosts can be quaratined.
getLatencyAwareUpdateInterval
int getLatencyAwareUpdateInterval()
- TODO
getLatencyAwareResetInterval
int getLatencyAwareResetInterval()
- TODO
getMaxPendingConnectionsPerHost
int getMaxPendingConnectionsPerHost()
- Returns:
- Maximum number of pending connect attempts per host
getMaxBlockedThreadsPerHost
int getMaxBlockedThreadsPerHost()
- Returns:
- Get max number of blocked clients for a host.
getTimeoutWindow
int getTimeoutWindow()
- Returns:
- Shut down a host if it times out too many time within this window
getMaxTimeoutCount
int getMaxTimeoutCount()
- Returns:
- Number of allowed timeouts within getTimeoutWindow() milliseconds
getRetrySuspendWindow
int getRetrySuspendWindow()
- TODO
getRetryMaxDelaySlice
int getRetryMaxDelaySlice()
- TODO
getRetryDelaySlice
int getRetryDelaySlice()
- TODO
getMaxOperationsPerConnection
int getMaxOperationsPerConnection()
- Returns:
- Maximum allowed operations per connections before forcing the connection
to close
getAuthenticationCredentials
AuthenticationCredentials getAuthenticationCredentials()
- Returns:
- Can return null if no login required
getOperationFilterFactory
OperationFilterFactory getOperationFilterFactory()
- Returns:
- Return factory that will wrap an operation with filters, such as logging filters
and simulation filters
getPartitioner
Partitioner getPartitioner()
- Returns:
- Get the partitioner used to convert row keys to TOKEN
getSSLConnectionContext
SSLConnectionContext getSSLConnectionContext()
- Returns:
- Retrieve a context to determine if connections should be made using SSL.
getMaintainanceScheduler
java.util.concurrent.ScheduledExecutorService getMaintainanceScheduler()
- Returns:
- Return executor service used for maintenance tasks. This pool is used for internal
operations that update stats such as token aware scores. Threads in this pool
and not expected to block on I/O and the pool can therefore be very small
getHostReconnectExecutor
java.util.concurrent.ScheduledExecutorService getHostReconnectExecutor()
- Returns:
- Return executor service used to reconnect hosts. Keep in mind that the threads
may be blocked for an extended duration while trying to reconnect to a downed host
initialize
void initialize()
- Initialization prior to starting the connection pool
shutdown
void shutdown()
- Shutdown after stopping the connection pool