Jedis connect failed when using dns resolver in jedis 5.1.2

ellabider commented 3 months ago

Expected behavior

connect success

Actual behavior

Write here what happens instead ... redis.clients.jedis.exceptions.JedisConnectionException: Failed to connect to any host resolved for DNS name. at redis.clients.jedis.DefaultJedisSocketFactory.connectToFirstSuccessfulHost(DefaultJedisSocketFactory.java:63) ~[jedis-5.1.2.jar:?] at redis.clients.jedis.DefaultJedisSocketFactory.createSocket(DefaultJedisSocketFactory.java:89) ~[jedis-5.1.2.jar:?] at redis.clients.jedis.Connection.connect(Connection.java:194) ~[jedis-5.1.2.jar:?] at redis.clients.jedis.Connection.initializeFromClientConfig(Connection.java:392) ~[jedis-5.1.2.jar:?] at redis.clients.jedis.Connection.(Connection.java:67) ~[jedis-5.1.2.jar:?] at redis.clients.jedis.Jedis.(Jedis.java:220) ~[jedis-5.1.2.jar:?] at redis.clients.jedis.JedisFactory.makeObject(JedisFactory.java:170) ~[jedis-5.1.2.jar:?] at org.apache.commons.pool2.impl.GenericObjectPool.create(GenericObjectPool.java:566) ~[commons-pool2-2.12.0.jar:2.12.0] at org.apache.commons.pool2.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:306) ~[commons-pool2-2.12.0.jar:2.12.0] at org.apache.commons.pool2.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:233) ~[commons-pool2-2.12.0.jar:2.12.0] at redis.clients.jedis.util.Pool.getResource(Pool.java:38) ~[jedis-5.1.2.jar:?] at redis.clients.jedis.JedisPool.getResource(JedisPool.java:378) ~[jedis-5.1.2.jar:?]

Steps to reproduce:

try(Jedis jedis = new Jedis("redis-host.mv.com", 6379)) { System.out.println(jedis.ping()); // failed }

most of time works as expected, but sometime randomly fails with a set of above failure with different redis endpoints

Redis / Jedis Configuration

using AWS EC2 resolver

Jedis version: 5.1.2

Redis version:7.2.4

Java version: openjdk version "21.0.2"

katsanva commented 3 months ago

Same for jedis 5.1.2, Redis 7.4.2, openjdk version "18.0.2.1" 2022-08-18

sazzad16 commented 3 months ago

@ellabider @katsanva Was it fine with an earlier (but somewhat recent) version of Jedis? What was the last Jedis version that works for you?

katsanva commented 3 months ago

@sazzad16 I've tried to upgrade from 3.10.0

ngavrailov commented 3 months ago

Same issue on our side. I tried with 5.1.3, then with 5.0.0 and still have it. Upgrade was from 4.3.2.

ellabider commented 3 months ago

It occurred in 4.2.3 for sure. 3.8.0 - was OK, I think

redis / jedis