[Backlogmanager] [FIWARE-JIRA] (HELP-17633) [fiware-stackoverflow] Cygnus: Unable to deliver event. close() called when transaction is OPEN - you must either commit or rollback first

[Jason Fox (JIRA)]

     [ https://jira.fiware.org/browse/HELP-17633?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jason Fox resolved HELP-17633.
------------------------------
    Resolution: Done

> [fiware-stackoverflow] Cygnus: Unable to deliver event. close() called when transaction is OPEN - you must either commit or rollback first
> ------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HELP-17633
>                 URL: https://jira.fiware.org/browse/HELP-17633
>             Project: Help-Desk
>          Issue Type: Monitor
>          Components: FIWARE-TECH-HELP
>            Reporter: Backlog Manager
>            Assignee: Jason Fox
>              Labels: apache-kafka, fiware, fiware-cygnus
>
> Created question in FIWARE Q/A platform on 14-04-2021 at 16:04
> {color: red}Please, ANSWER this question AT{color} https://stackoverflow.com/questions/67095802/cygnus-unable-to-deliver-event-close-called-when-transaction-is-open-you-m
> +Question:+
> Cygnus: Unable to deliver event. close() called when transaction is OPEN - you must either commit or rollback first
> +Description:+
> I've installed Fiware Orion (v 1.13.0), Fiware  Cygnus (2.8.0) and Kafka in order to send data from Orion to Kafka via Cygnus.
> I've used the conf file suggested in the cygnus documentation
> cygnus-ngsi.sources =http-source
> cygnus-ngsi.sinks =kafka-sink
> cygnus-ngsi.channels =kafka-channel
> cygnus-ngsi.sources.http-source.channels = kafka-channel
> cygnus-ngsi.sources.http-source.type = org.apache.flume.source.http.HTTPSource
> cygnus-ngsi.sources.http-source.port = 5050
> cygnus-ngsi.sources.http-source.handler = com.telefonica.iot.cygnus.handlers.NGSIRestHandler
> cygnus-ngsi.sources.http-source.handler.notification_target = /notify
> cygnus-ngsi.sources.http-source.handler.default_service = def_serv
> cygnus-ngsi.sources.http-source.handler.default_service_path = /def_servpath
> cygnus-ngsi.sources.http-source.handler.events_ttl = 2
> cygnus-ngsi.sources.http-source.interceptors = ts gi
> cygnus-ngsi.sources.http-source.interceptors.ts.type = timestamp
> cygnus-ngsi.sources.http-source.interceptors.gi.type = com.telefonica.iot.cygnus.interceptors.NGSIGroupingInterceptor$Builder
> cygnus-ngsi.sources.http-source.interceptors.gi.grouping_rules_conf_file = /opt/apache-flume/conf/grouping_rules.conf
> cygnus-ngsi.channels.kafka-channel.type = memory
> cygnus-ngsi.channels.kafka-channel.capacity = 1000
> cygnus-ngsi.channels.kafka-channel.trasactionCapacity = 100
> cygnus-ngsi.sinks.kafka-sink.type = com.telefonica.iot.cygnus.sinks.NGSIKafkaSink
> cygnus-ngsi.sinks.kafka-sink.channel = kafka-channel
> cygnus-ngsi.sinks.kafka-sink.enable_grouping = false
> cygnus-ngsi.sinks.kafka-sink.data_model = dm-by-entity
> cygnus-ngsi.sinks.kafka-sink.broker_list = 192.168.1.142:9092
> cygnus-ngsi.sinks.kafka-sink.zookeeper_endpoint = 192.168.1.142:2181
> cygnus-ngsi.sinks.kafka-sink.batch_size = 1
> cygnus-ngsi.sinks.kafka-sink.batch_timeout = 10
> Everything is up using Docker swarm
> ID             NAME              MODE         REPLICAS   IMAGE                       PORTS
> c195zwpxparu   cygnus_cygnus     replicated   1/1        fiware/cygnus-ngsi:latest   *:5050->5050/tcp, *:5055->5055/tcp, *:5080->5080/tcp
> pzjvud4q4ibc   kafka_kafka       replicated   1/1        bitnami/kafka:2             *:9092->9092/tcp
> bpyaz4jphuhh   kafka_zookeeper   replicated   1/1        bitnami/zookeeper:3         *:2181->2181/tcp
> jk4po3ofs3bm   orion_mongodb     replicated   1/1        mongo:3.6.5
> mlknk6j7y5kd   orion_orion       replicated   1/1        fiware/orion:1.13.0         *:1026->1026/tcp
> This is my docker-compose.yml about cygnus
> version: "3"
> services:
>   cygnus:
>     image: fiware/cygnus-ngsi
>     ports:
>       - "5050:5050"
>       - "5055:5055"
>       - "5080:5080"
>     volumes:
>       - ./conf/agent.conf:/opt/apache-flume/conf/agent.conf
>     environment:
>       - CYGNUS_SKIP_CONF_GENERATION=true
>       - CYGNUS_MULTIAGENT=false
>     deploy:
>       replicas: 1
>       restart_policy:
>         condition: any
>         delay: 5s
>         max_attempts: 3
>         window: 120s
>   
> networks:
>   default:
>     driver: overlay
>     driver_opts:
>       com.docker.network.driver.mtu: 1400
> When the notification arrives from Orion to localhost:5050/notify, on Cygnus console this error appears
> cygnus_cygnus.1.kqc4nf48qtxf at docker-desktop    | time=2021-04-14T16:36:16.099Z | lvl=INFO | corr=N/A | trans=N/A | srv=N/A | subsrv=N/A | comp=cygnus-ngsi | op=processNewBatches | msg=com.telefonica.iot.cygnus.
> sinks.NGSISink[643] : Rollback transaction by Exception  (begin() called when transaction is OPEN!)
> cygnus_cygnus.1.kqc4nf48qtxf at docker-desktop    | time=2021-04-14T16:36:16.099Z | lvl=ERROR | corr=N/A | trans=N/A | srv=N/A | subsrv=N/A | comp=cygnus-ngsi | op=run | msg=org.apache.flume.SinkRunner$PollingRunn
> er[158] : Unable to deliver event. Exception follows.
> cygnus_cygnus.1.kqc4nf48qtxf at docker-desktop    | java.lang.IllegalStateException: close() called when transaction is OPEN - you must either commit or rollback first
> cygnus_cygnus.1.kqc4nf48qtxf at docker-desktop    |        at com.google.common.base.Preconditions.checkState(Preconditions.java:172)
> cygnus_cygnus.1.kqc4nf48qtxf at docker-desktop    |        at org.apache.flume.channel.BasicTransactionSemantics.close(BasicTransactionSemantics.java:179)
> cygnus_cygnus.1.kqc4nf48qtxf at docker-desktop    |        at com.telefonica.iot.cygnus.sinks.NGSISink.processNewBatches(NGSISink.java:646)
> cygnus_cygnus.1.kqc4nf48qtxf at docker-desktop    |        at com.telefonica.iot.cygnus.sinks.NGSISink.process(NGSISink.java:373)
> cygnus_cygnus.1.kqc4nf48qtxf at docker-desktop    |        at org.apache.flume.sink.DefaultSinkProcessor.process(DefaultSinkProcessor.java:67)
> cygnus_cygnus.1.kqc4nf48qtxf at docker-desktop    |        at org.apache.flume.SinkRunner$PollingRunner.run(SinkRunner.java:145)
> cygnus_cygnus.1.kqc4nf48qtxf at docker-desktop    |        at java.lang.Thread.run(Thread.java:748)
> Any suggestion ?



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