NetworkingError：getaddrinfo EMFILE dynamodb.eu-west-1.amazonaws.com:443

Question

有一张桌子说公司。如果尝试通过主键获取公司，则会出现以下错误。 请注意：此错误并非针对所有实例。它不会反复失败。它有时但经常发生。 20％的请求失败

{ Error: getaddrinfo EMFILE dynamodb.eu-west-1.amazonaws.com:443
at Object._errnoException (util.js:1022:11)
at errnoException (dns.js:55:15)
at GetAddrInfoReqWrap.onlookup [as oncomplete] (dns.js:92:26)
message: 'getaddrinfo EMFILE dynamodb.eu-west-1.amazonaws.com:443',
code: 'NetworkingError',
errno: 'EMFILE',
syscall: 'getaddrinfo',
hostname: 'dynamodb.eu-west-1.amazonaws.com',
host: 'dynamodb.eu-west-1.amazonaws.com',
port: 443,
region: 'eu-west-1',
retryable: true,
time: 2019-07-18T05:30:09.145Z }