com.alicloud.openservices.tablestore.model

类 DefaultRetryStrategy

java.lang.Object

com.alicloud.openservices.tablestore.model.DefaultRetryStrategy

所有已实现的接口:

RetryStrategy

public class DefaultRetryStrategy
extends Object
implements RetryStrategy

The TableStore SDK supports custom retry logic RetryStrategy, which is used to determine whether a retry is needed when an exception occurs, and provides the time interval for the current retry. DefaultRetryStrategy is the default retry logic of the TableStore SDK.

构造器概要

构造器

构造器和说明
DefaultRetryStrategy()
DefaultRetryStrategy(long timeout, TimeUnit unit)

方法概要

限定符和类型	方法和说明
RetryStrategy	clone() Returns a RetryStrategy object of the same type that has not been retried.
int	getRetries() Returns the number of retries for the current operation
long	nextPause(String action, Exception ex) Get the delay time before the retries-th retry is initiated.
protected boolean	retryNotMatterActions(String errorCode, String errorMessage)
boolean	shouldRetry(String action, Exception ex) The default retry strategy provided by the SDK, with the following rules: 1.
protected boolean	shouldRetryWithOTSException(String action, boolean isIdempotent, String errorCode, String errorMessage, int httpStatus)

从类继承的方法 java.lang.Object

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

构造器详细资料

DefaultRetryStrategy

public DefaultRetryStrategy()

DefaultRetryStrategy

public DefaultRetryStrategy(long timeout,
                            TimeUnit unit)

方法详细资料

clone

public RetryStrategy clone()

从接口复制的说明: RetryStrategy

Returns a RetryStrategy object of the same type that has not been retried.

指定者:

clone 在接口中 RetryStrategy

覆盖:

clone 在类中 Object

返回:

A RetryStrategy object of the same type that has not been retried.

getRetries

public int getRetries()

从接口复制的说明: RetryStrategy

Returns the number of retries for the current operation

指定者:

getRetries 在接口中 RetryStrategy

返回:

the number of retries for the current operation

retryNotMatterActions

protected boolean retryNotMatterActions(String errorCode,
                                        String errorMessage)

shouldRetryWithOTSException

protected boolean shouldRetryWithOTSException(String action,
                                              boolean isIdempotent,
                                              String errorCode,
                                              String errorMessage,
                                              int httpStatus)

shouldRetry

public boolean shouldRetry(String action,
                           Exception ex)

The default retry strategy provided by the SDK, with the following rules: 1. If the exception is TableStoreException and the error code is OTSRowOperationConflict, OTSNotEnoughCapacityUnit, OTSTableNotReady, OTSPartitionUnavailable, or OTSServerBusy, then it can be retried. 2. If the exception is OTSQuotaExhausted and the exception message is "Too frequent table operations.", then it can be retried. 3. If the exception is ClientException (a network-related exception), and the operation is idempotent, then it can be retried. 4. If the exception is OTSTimeout, OTSInternalServerError, OTSServerUnavailable, OTSTunnelServerUnavailable, or the HTTP status code is 500, 502, or 503, and the operation is idempotent, then it can be retried. 5. For batch operations, the entire batch operation can only be retried if all failed rows are eligible for retry. The default retry strategy considers all read-related operations as idempotent, while all write-related operations are considered non-idempotent. If users have retry requirements for writes, they need to customize the retry strategy.

参数:

action - Operation name, such as "ListTable", "GetRow", "PutRow", etc.

ex - Error information from the last failed attempt, either a ClientException or OTSException

返回:

nextPause

public long nextPause(String action,
                      Exception ex)

从接口复制的说明: RetryStrategy

Get the delay time before the retries-th retry is initiated. The SDK will initiate the retries-th retry after this period of time. If the return value is less than or equal to 0, it means no retry will be attempted.

指定者:

nextPause 在接口中 RetryStrategy

参数:

action - Operation name, such as "ListTable", "GetRow", "PutRow", etc.

ex - Error information from the last failed attempt, either a ClientException or a TableStoreException

返回:

The delay time before the retries-th retry is initiated (in milliseconds). A value less than or equal to 0 indicates that the operation is not retryable.