AWS Java客戶端的未知主機異常？

Question

有沒有其他人遇到這個例外？ 我們昨晚在負載測試中看到了它。 主機名是正確的，通常正常。 它昨晚剛開始拋出這個例外。 無論是amanzon上的隨機DNS失敗，還是Aws SDK for Java在加載時都會出現意外情況。

> Caused by: java.net.UnknownHostException: sdb.amazonaws.com
    at java.net.Inet6AddressImpl.lookupAllHostAddr(Native Method)
    at java.net.InetAddress$1.lookupAllHostAddr(InetAddress.java:867)
    at java.net.InetAddress.getAddressFromNameService(InetAddress.java:1246)
    at java.net.InetAddress.getAllByName0(InetAddress.java:1197)
    at java.net.InetAddress.getAllByName(InetAddress.java:1128)
    at java.net.InetAddress.getAllByName(InetAddress.java:1064)
    at org.apache.http.impl.conn.DefaultClientConnectionOperator.resolveHostname(DefaultClientConnectionOperator.java:242)
    at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:130)
    at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:149)
    at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:121)
    at org.apache.http.impl.client.DefaultRequestDirector.tryConnect(DefaultRequestDirector.java:561)
    at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:415)
    at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:820)
    at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:754)
    at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:732)
    at com.amazonaws.http.AmazonHttpClient.executeHelper(AmazonHttpClient.java:266)

Answer 1

以下列方式更改/ etc / hosts：
舊
127.0.0.1 localhost localhost.localdomain
新
127.0.0.1 localhost localhost.localdomain add-your-localhost-name- here

Answer 2

我Caused by: java.net.UnknownHostException: ec2.sa-east-1.amazonaws.com了同樣的問題Caused by: java.net.UnknownHostException: ec2.sa-east-1.amazonaws.com同時做lein pallet up上傳文件到aws桶/或嘗試獲取遠程機器的ips。

1.先試試，

清潔項目， 等待幾分鍾/小時然后lein pallet up -P aws-ec2與相同的aws配置為我工作。

2.第二次嘗試，

將lein pallet up -P aws-ec2運行lein pallet up -P aws-ec2用於單個groups而不是整個群集。