DAX TimeoutError:10000毫秒后的连接超时

技术堆栈:

Lambda
Dynomodb
DAX
amazon-dax-client

DAX查询:

const parameters = {
      TableName: USER_TABLE,
      ....
    };
const endpoint = DAX_CLUSTER_ENDPOINT;
const daxService = new AmazonDaxClient({ endpoints: [endpoint], region });
const daxClient = new AWS.DynamoDB.DocumentClient({ service: daxService });
response = await daxClient.query(parameters).promise();

API工作正常,但有时会抛出此错误

ERROR   Failed to pull from my-dax-cluster.dax-clusters.xxxx.amazonaws.com (ip address.): TimeoutError: Connection timeout after 10000ms
    at SocketTubePool.alloc (/var/task/node_modules/amazon-dax-client/src/Tube.js:244:64)
    at /var/task/node_modules/amazon-dax-client/generated-src/Operations.js:215:30

在这个错误之后

{
    "errorType": "Error",
    "errorMessage": "Endpoint is unreachable: my-ip:9111. connect EMFILE my-ip:9111 - Local (undefined:undefined)",
    "time": 1635838117288,
    "retryable": true,
    "requestId": null,
    "statusCode": -1,
    "_tubeInvalid": false,
    "waitForRecoveryBeforeRetrying": false,
    "stack": [
        "Error: Endpoint is unreachable: my-ip:9111. connect EMFILE my-ip:9111 - Local (undefined:undefined)",
        "    at SocketTubePool.socketError (/var/task/node_modules/amazon-dax-client/src/Tube.js:290:11)",
        "    at TLSSocket.<anonymous> (/var/task/node_modules/amazon-dax-client/src/Tube.js:277:103)",
        "    at TLSSocket.emit (events.js:400:28)",
        "    at TLSSocket.emit (domain.js:470:12)",
        "    at emitErrorNT (internal/streams/destroy.js:106:8)",
        "    at emitErrorCloseNT (internal/streams/destroy.js:74:3)",
        "    at processTicksAndRejections (internal/process/task_queues.js:82:21)",
        "    at runNextTicks (internal/process/task_queues.js:64:3)",
        "    at listOnTimeout (internal/timers.js:526:9)",
        "    at processTimers (internal/timers.js:500:7)"
    ]

其他类似问题:

https://stackoverflow.com/questions/63587352/still-receiving-timeout-connects-using-js-dax-client-classified-as-an-error-but

Aws dax stability issues