Cygnus didn't update database

Question

I want to subscribe Orion to send notifications to Cygnus. Then cygnus will save all data in mysql database. I use this script to subscribe the speed attribute of car1.

(curl 130.206.118.44:1026/v1/subscribeContext -s -S --header 'Content-Type: application/json' --header 'Accept: application/json' --header 'Fiware-Service: vehicles' --header 'Fiware-ServicePath: /4wheels' -d @- | python -mjson.tool) <<EOF
{
    "entities": [
        {
            "type": "car",
            "isPattern": "false",
            "id": "car1"
        }
    ],
    "attributes": [
        "speed",
        "oil_level"
    ],
    "reference": "http://192.168.1.49:5050/notify",
    "duration": "P1M",
    "notifyConditions": [
        {
            "type": "ONCHANGE",
            "condValues": [
                "speed"
            ]
        }
    ],
    "throttling": "PT1S"
}
EOF

But when I update the speed attribute of car 1, cygnus doesn't update the database.

Databases available:

mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| mysql              |
| performance_schema |
+--------------------+
3 rows in set (0.00 sec)

Some information about my cygnus service and my cygnus configuration (systemctl status cygnus):

cygnus.service - SYSV: cygnus
   Loaded: loaded (/etc/rc.d/init.d/cygnus)
   Active: active (exited) since Wed 2015-10-21 17:54:07 UTC; 8min ago
  Process: 31566 ExecStop=/etc/rc.d/init.d/cygnus stop (code=exited, status=0/SUCCESS)
  Process: 31588 ExecStart=/etc/rc.d/init.d/cygnus start (code=exited, status=0/SUCCESS)

Oct 21 17:54:05 cygnus systemd[1]: Starting SYSV: cygnus...
Oct 21 17:54:05 cygnus su[31593]: (to cygnus) root on none
Oct 21 17:54:07 cygnus cygnus[31588]: Starting Cygnus mysql...  [  OK  ]
Oct 21 17:54:07 cygnus systemd[1]: Started SYSV: cygnus.

agent_mysql.conf:

# main configuration
cygnusagent.sources = http-source
cygnusagent.sinks = mysql-sink
cygnusagent.channels = mysql-channel

# source configuration
cygnusagent.sources.http-source.channels = mysql-channel
cygnusagent.sources.http-source.type = org.apache.flume.source.http.HTTPSource
cygnusagent.sources.http-source.port = 5050
cygnusagent.sources.http-source.handler = com.telefonica.iot.cygnus.handlers.OrionRestHandler

# url target
cygnusagent.sources.http-source.handler.notification_target = /notify
cygnusagent.sources.http-source.handler.default_service = def_serv
cygnusagent.sources.http-source.handler.default_service_path = def_servpath
cygnusagent.sources.http-source.handler.events_ttl = 10
cygnusagent.sources.http-source.interceptors = ts gi
cygnusagent.sources.http-source.interceptors.ts.type = timestamp
cygnusagent.sources.http-source.interceptors.gi.type = com.telefonica.iot.cygnus.interceptors.GroupingInterceptor$Builder
cygnusagent.sources.http-source.interceptors.gi.grouping_rules_conf_file = /usr/cygnus/conf/grouping_rules.conf


#Orion MysqlSink Configuration
cygnusagent.sinks.mysql-sink.channel = mysql-channel
cygnusagent.sinks.mysql-sink.type = com.telefonica.iot.cygnus.sinks.OrionMySQLSink
cygnusagent.sinks.mysql-sink.enable_grouping = false
# mysqldb ip
cygnusagent.sinks.mysql-sink.mysql_host = 127.0.0.1
# mysqldb port
cygnusagent.sinks.mysql-sink.mysql_port = 3306
cygnusagent.sinks.mysql-sink.mysql_username = root
cygnusagent.sinks.mysql-sink.mysql_password = 12345
cygnusagent.sinks.mysql-sink.attr_persistence = column
cygnusagent.sinks.mysql-sink.table_type = table-by-destination

# configuracao do canal mysql
cygnusagent.channels.mysql-channel.type = memory
cygnusagent.channels.mysql-channel.capacity = 1000
cygnusagent.channels.mysql-channel.transactionCapacity = 100

After read this question, I changed my agent_mysql.conf in this line: cygnusagent.sinks.mysql-sink.attr_persistence = column to cygnusagent.sinks.mysql-sink.attr_persistence = row and restarted the service. Then I updated orion entity and I queried database and nothing happened.

Cygnus log file: http://pastebin.com/B2FNKcVf

Note: My JAVA_HOME is set.

Answer 1

As you can see in the logs you posted, there is a problem with the Cygnus log file:

java.io.FileNotFoundException: ./logs/cygnus.log (No such file or directory)

After that, Cygnus stops. You must check your configuration regarding log4j, everything is at /usr/cygnus/conf/log4j.properties (it should exists, it is created by the RPM... if not existing -because you italled from sources instead of the RPM-, it must be created from the available template). In addition, can you post your instance configuration file? Anyway, which version are you running?

EDIT 1

Recently, we have found another user dealing with the same error, and the problem was the content of the /usr/cygnus/conf/log4j.properties file was:

flume.root.logger=INFO,LOGFILE
flume.log.dir=./log
flume.log.file=flume.log

Instead of what the template contains:

flume.root.logger=INFO,LOGFILE
flume.log.dir=/var/log/cygnus/
flume.log.file=flume.log

Once changed it worked because the RPM creates /var/log/cygnus but not ./log.