Java 未知后异常和/etc/hosts
我在/etc/hosts文件中有记录,其中包含Java 未知后异常和/etc/hosts,java,linux,host,hosts,jedis,Java,Linux,Host,Hosts,Jedis,我在/etc/hosts文件中有记录,其中包含host name.com 但我有时会得到未知的后异常,比如: redis.clients.jedis.exceptions.JedisConnectionException: java.net.UnknownHostException: host-name.com at redis.clients.jedis.Connection.connect(Connection.java:137) at redis.clients.jedis.B
host name.com
但我有时会得到未知的后异常,比如:
redis.clients.jedis.exceptions.JedisConnectionException: java.net.UnknownHostException: host-name.com
at redis.clients.jedis.Connection.connect(Connection.java:137)
at redis.clients.jedis.BinaryClient.connect(BinaryClient.java:65)
at redis.clients.jedis.BinaryJedis.connect(BinaryJedis.java:1706)
at redis.clients.jedis.JedisFactory.makeObject(JedisFactory.java:28)
at org.apache.commons.pool.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:1188)
at redis.clients.util.Pool.getResource(Pool.java:38)
... 2 common frames omitted
Caused by: java.net.UnknownHostException: host-name.com
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:178)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:579)
at redis.clients.jedis.Connection.connect(Connection.java:132)
... 7 common frames omitted
这是怎么可能的,我该怎么解决
- 带UNSD的Linux 3.2(Debian稳定版)
- java 1.7.0_45,带有
-Djava.net.preferIPv4Stack=true
- /etc/nsswitch.conf有一行
hosts:files-dns
- /etc/hosts权限
-rw-r--r--
UnknownHostException
。当计算机断开连接时,我得到的是java.net.SocketException:网络无法访问
好的,不知道为什么这个问题会被关闭,但我有完全相同的情况,答案是:您的文件描述符限制被超过(或几乎超过)。系统无法读取主机文件,因为它需要一个可用的文件描述符来打开它。不幸的是,UnknownHosteException异常具有误导性。当我用IP地址替换主机名时,我开始得到“太多打开的文件”。