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https://issues.apache.org/jira/browse/NIFI-5830?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16712106#comment-16712106
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ASF GitHub Bot commented on NIFI-5830:
--------------------------------------
Github user asfgit closed the pull request at:
https://github.com/apache/nifi/pull/3176
> RedisConnectionPoolService does not work with Standalone Redis using
> non-localhost deployment
> ---------------------------------------------------------------------------------------------
>
> Key: NIFI-5830
> URL: https://issues.apache.org/jira/browse/NIFI-5830
> Project: Apache NiFi
> Issue Type: Bug
> Components: Core Framework
> Affects Versions: 1.8.0
> Environment: Ubuntu 16 LTS, NiFi 1.8.0
> Reporter: Alexander Bukarev
> Priority: Major
> Fix For: 1.9.0
>
>
> The controller service {{RedisConnectionPoolService}} does not work with
> Standalone Redis which is deployed on a host other than {{localhost}} (or if
> Redis uses the port other than {{6379}}). So the only way to use
> {{RedisConnectionPoolService}} is to deploy Redis on {{localhost}} and run it
> with default port {{6379}}.
> *Steps*:
> Let's assume our Redis is deployed on host *redis* (not {{localhost}}) and it
> listens port 6379 (I use docker for that)
> # Create a {{PutDistributedMapCache}} processor
> # Configure the processor with {{RedisDistributedMapCacheClientService}}
> # Create a new controller service: {{RedisConnectionPoolService}}
> #* Choose *Standalone* Redis Mode
> #* Use *redis:6379* as a Connection String
> # Connect some incoming flow to the {{PutDistributedMapCache}} processor
> (I've used {{GetFile}} as a producer) and run the whole flow. Allow
> {{GetFile}} to consume some file (if you use {{GetFile}} ro reproduce) and
> wait some time till the {{PutDistributedMapCache}} will be schedulled.
> Result:
> The processor is failed to run. And we can see the error in logs:
> {panel}2018-11-17 06:06:47,572 WARN [Timer-Driven Process Thread-2]
> o.a.n.controller.tasks.ConnectableTask Administratively Yielding PutDistribu
> tedMapCache[id=2041c81f-0167-1000-c82f-d7da2155dfb4] due to uncaught
> Exception: org.springframework.data.redis.RedisConnectionFailureExce
> ption: Cannot get Jedis connection; nested exception is
> redis.clients.jedis.exceptions.JedisConnectionException: Could not get a
> resource
> from the pool
> org.springframework.data.redis.RedisConnectionFailureException: Cannot get
> Jedis connection; nested exception is
> redis.clients.jedis.exceptions.JedisConnectionException: Could not get a
> resource from the pool
> at
> org.springframework.data.redis.connection.jedis.JedisConnectionFactory.fetchJedisConnector(JedisConnectionFactory.java:281)
> at
> org.springframework.data.redis.connection.jedis.JedisConnectionFactory.getConnection(JedisConnectionFactory.java:464)
> at
> org.apache.nifi.redis.service.RedisConnectionPoolService.getConnection(RedisConnectionPoolService.java:89)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:498)
> at
> org.apache.nifi.controller.service.StandardControllerServiceInvocationHandler.invoke(StandardControllerServiceInvocationHandler.java:84)
> at com.sun.proxy.$Proxy128.getConnection(Unknown Source)
> at
> org.apache.nifi.redis.service.RedisDistributedMapCacheClientService.withConnection(RedisDistributedMapCacheClientService.java:343)
> at
> org.apache.nifi.redis.service.RedisDistributedMapCacheClientService.put(RedisDistributedMapCacheClientService.java:189)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:498)
> at
> org.apache.nifi.controller.service.StandardControllerServiceInvocationHandler.invoke(StandardControllerServiceInvocationHandler.java:84)
> at com.sun.proxy.$Proxy124.put(Unknown Source)
> at
> org.apache.nifi.processors.standard.PutDistributedMapCache.onTrigger(PutDistributedMapCache.java:202){panel}
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