jedis pool WAITING

[flylee85]

Expected behavior

jedis pool no WAITING

Actual behavior

"http-nio-8085-exec-2" #47 daemon prio=5 os_prio=0 tid=0x00007f594dc49800 nid=0x73c0 waiting on condition [0x00007f586eff4000]
java.lang.Thread.State: WAITING (parking)
at sun.misc.Unsafe.park(Native Method)
- parking to wait for <0x0000000082c02c40> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
at org.apache.commons.pool2.impl.LinkedBlockingDeque.takeFirst(LinkedBlockingDeque.java:587)
at org.apache.commons.pool2.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:440)
at org.apache.commons.pool2.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:361)
at redis.clients.util.Pool.getResource(Pool.java:49)
at redis.clients.jedis.JedisPool.getResource(JedisPool.java:226)
at redis.clients.jedis.JedisPool.getResource(JedisPool.java:16)
at org.springframework.data.redis.connection.jedis.JedisConnectionFactory.fetchJedisConnector(JedisConnectionFactory.java:194)
at org.springframework.data.redis.connection.jedis.JedisConnectionFactory.getConnection(JedisConnectionFactory.java:348)
at org.springframework.data.redis.core.RedisConnectionUtils.doGetConnection(RedisConnectionUtils.java:129)
at org.springframework.data.redis.core.RedisConnectionUtils.bindConnection(RedisConnectionUtils.java:67)
at org.springframework.data.redis.core.RedisTemplate.execute(RedisTemplate.java:192)
at org.springframework.data.redis.core.RedisTemplate.execute(RedisTemplate.java:169)
at org.springframework.data.redis.core.AbstractOperations.execute(AbstractOperations.java:91)
at org.springframework.data.redis.core.DefaultValueOperations.get(DefaultValueOperations.java:43)

Steps to reproduce:

Please create a reproducible case of your problem. Make sure
that case repeats consistently and it's not random
1.
2.
3.

Redis / Jedis Configuration

spring.redis.host=127.0.0.1
spring.redis.port=6379
spring.redis.database=15
spring.redis.password=abc
spring.redis.jedis.pool.max-active=50
spring.redis.jedis.pool.max-wait=1000
spring.redis.jedis.pool.max-idle=20
spring.redis.jedis.pool.min-idle=2
spring.redis.timeout=5000

Jedis version:

2.10.2

Redis version:

3.2.9

Java version:

jdk8

[sazzad16]

2.10.2 is quite old to work on.

Two of closest issues could be:

• JedisCluster hangs entire threads sharing the same JedisCluster when the redis is temporarily overloaded. #1620 - resolved by setting a positive number in setMaxWaitMillis of pool config
• JedisPool exhausted in Jedis 2.10.0 #1920 - resolved by upgrading to 2.10.2

I see you are using both. Sorry, I don't have any other possible resolution 😢

Just throwing some ideas:

1. Can you check if max-wait is set properly?
2. Can you upgrade and test?