ScanPolicy MembersAerospike

The ScanPolicy type exposes the following members.
Constructors

  NameDescription
Public methodScanPolicy
Default constructor.
Back to Top
Fields

  NameDescription
Public fieldallowProleReads
Allow read operations to use replicated data partitions instead of master partition. By default, both read and write operations are directed to the master partition.

This variable is currently only used in batch read/exists operations. For batch, this variable should only be set to true when the replication factor is greater than or equal to the number of nodes in the cluster.

(Inherited from Policy.)
Public fieldconcurrentNodes
Issue scan requests in parallel or serially.
Public fieldfailOnClusterChange
Terminate scan if cluster in fluctuating state.
Public fieldincludeBinData
Indicates if bin data is retrieved. If false, only record digests are retrieved.
Public fieldmaxConcurrentNodes
Maximum number of concurrent requests to server nodes at any point in time. If there are 16 nodes in the cluster and maxConcurrentNodes is 8, then scan requests will be made to 8 nodes in parallel. When a scan completes, a new scan request will be issued until all 16 nodes have been scanned.

This field is only relevant when concurrentNodes is true. Default (0) is to issue requests to all server nodes in parallel.

Public fieldmaxRetries
Maximum number of retries before aborting the current transaction. A retry is attempted when there is a network error other than timeout. If maxRetries is exceeded, the abort will occur even if the timeout has not yet been exceeded. The default number of retries is 1.
(Inherited from Policy.)
Public fieldpriority
Priority of request relative to other transactions. Currently, only used for scans.
(Inherited from Policy.)
Public fieldscanPercent
Percent of data to scan. Valid integer range is 1 to 100. Default is 100.
Public fieldsleepBetweenRetries
Milliseconds to sleep between retries if a transaction fails and the timeout was not exceeded. The default sleep between retries is 500 ms.
(Inherited from Policy.)
Public fieldtimeout
Transaction timeout in milliseconds. This timeout is used to set the socket timeout and is also sent to the server along with the transaction in the wire protocol. Default to no timeout (0).
(Inherited from Policy.)
Back to Top
See Also