tablestore/lib/retry/retry_util.js

TableStore SDK for JavaScript

var TableStore = require('../core');

TableStore.RetryUtil = {

    shouldRetryNoMatterWhichApi: function (exception) {
        var errorCode = exception.code;
        var errorMessage = exception.message;

        if (errorCode == "OTSRowOperationConflict" ||
            errorCode == "OTSNotEnoughCapacityUnit" ||
            errorCode == "OTSTableNotReady" ||
            errorCode == "OTSPartitionUnavailable" ||
            errorCode == "OTSServerBusy" ||
            errorCode == "OTSOperationThrottled") {
            return true;
        }

        if (errorCode == "OTSQuotaExhausted" && errorMessage == "Too frequent table operations.") {
            return true;
        }

        return false;
    },

    isRepeatableApi: function (apiName) {
        apiName = TableStore.util.string.upperFirst(apiName);
        const repeatableApi = [
            'ListTable',
            'DescribeTable',
            'GetRow',
            'BatchGetRow',
            'GetRange',
            'DescribeSearchIndex',
            'ListSearchIndex',
            'ComputeSplits',
            'ParallelScan',
            'Search',
            'SQLQuery',
            'DescribeKnowledgeBase',
            'ListKnowledgeBase',
            'GetDocument',
            'ListDocuments',
            'Retrieve',
            'ListChunks',
            'GetMemoryStore',
            'ListMemoryStores',
            'SearchMemories',
            'ListMemories',
            'GetMemory',
            'ListMemoryStoreMessages',
            'ListMemoryStoreRequests',
        ];
        for (const i in repeatableApi) {
            if (repeatableApi[i] === apiName) {
                return true;
            }
        }
    },

    shouldRetryWhenApiRepeatable: function (retry_times, exception, api_name) {
        var errorCode = exception.code;
        var errorMessage = exception.message;

        if (errorCode == "OTSTimeout" ||
            errorCode == "OTSInternalServerError" ||
            errorCode == "OTSServerUnavailable" ||
            errorCode == "NetworkingError") {
            return true;
        }

        if (errorCode == 500 || errorCode == 502 || errorCode == 503) {
            return true;
        }

        return false;
    },

    isServerThrottlingException: function (exception) {
        var errorCode = exception.code
        var errorMessage = exception.message

        if (errorCode == "OTSServerBusy" ||
            errorCode == "OTSNotEnoughCapacityUnit" ||
            errorCode == "OTSOperationThrottled") {
            return true;
        }

        if (errorCode == "OTSQuotaExhausted" && errorMessage == "Too frequent table operations.") {
            return true;
        }

        return false;
    }
}