Jedis connect failed when using dns resolver in jedis 5.1.2

[ellabider]

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]

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

[sazzad16]

@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]

@sazzad16 I've tried to upgrade from 3.10.0

[ngavrailov]

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]

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