The BatchPolicy type exposes the following members.
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Fields
Name | Description | |
---|---|---|
![]() | allowProleReads |
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.
(Inherited from Policy.)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. |
![]() | consistencyLevel |
How replicas should be consulted in a read operation to provide the desired
consistency guarantee. Default to allowing one replica to be used in the
read operation.
(Inherited from Policy.) |
![]() | maxConcurrentThreads |
Maximum number of concurrent batch request threads to server nodes at any point in time.
If there are 16 node/namespace combinations requested and maxConcurrentThreads is 8,
then batch requests will be made for 8 node/namespace combinations in parallel threads.
When a request completes, a new request will be issued until all 16 threads are complete.
Values:
|
![]() | maxRetries |
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.) |
![]() | priority |
Priority of request relative to other transactions.
Currently, only used for scans.
(Inherited from Policy.) |
![]() | sendKey |
Send user defined key in addition to hash digest on both reads and writes.
The default is to not send the user defined key.
(Inherited from Policy.) |
![]() | sleepBetweenRetries |
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.) |
![]() | timeout |
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.) |
See Also