我刚刚在我的虚拟机环境中测试了整个内容，现在我尝试在专用服务器上启动它。现在我遇到了一个全新的问题。首先我确认我有上下文Broker和centos运行（分别在1026和5050）：
[root@centos conf]# netstat -ntlpd
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 0.0.0.0:1026 0.0.0.0:* LISTEN 1321/contextBroker
tcp 0 0 127.0.0.1:27017 0.0.0.0:* LISTEN 1282/mongod
tcp 0 0 0.0.0.0:3306 0.0.0.0:* LISTEN 1791/mysqld
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 1260/sshd
tcp 0 0 :::1026 :::* LISTEN 1321/contextBroker
tcp 0 0 :::8081 :::* LISTEN 2481/java
tcp 0 0 :::22 :::* LISTEN 1260/sshd
tcp 0 0 :::5050 :::* LISTEN 2481/java
[root@centos conf]# service cygnus status
Cygnus 1 status...
cygnus-flume-ng (pid 2481) is running...
然后我确认我有关于contextBroker的数据，因为这个命令给了我一个适当的响应：
(curl localhost:1026/v1/queryContext -s -S --header 'Content-Type: application/json' \
--header 'Accept: application/json' -d @- | python -mjson.tool) <<EOF
{
"entities": [
{
"type": "Room",
"isPattern": "false",
"id": "Room1"
}
]
}
EOF
在workaround针对root用户和日志记录的问题后，我修复了log4j.properties并更改了以下内容：
flume.log.dir=/var/log/cygnus
然后我开始了天鹅座，得到了以下日志：
Starting an ordered shutdown of Cygnus
Stopping sources
Stopping http-source (lyfecycle state=START)
All the channels are empty
Stopping channels
Stopping mysql-channel (lyfecycle state=START)
Stopping sinks
Stopping mysql-sink (lyfecycle state=START)
Info: Sourcing environment configuration script /usr/cygnus/conf/flume-env.sh
Warning: JAVA_HOME is not set!
+ exec /usr/bin/java -Xmx20m -Dflume.log.file=cygnus.log -cp '/usr/cygnus/conf:/usr/cygnus/lib/*:/usr/cygnus/plugins.d/cygnus/lib/*:/usr/cygnus/plugins.d/cygnus/libext/*' -Djava.library.path= com.telefonica.iot.cygnus.nodes.CygnusApplic$
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/usr/cygnus/lib/slf4j-log4j12-1.6.1.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/usr/cygnus/plugins.d/cygnus/lib/cygnus-0.11.0-jar-with-dependencies.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
17 Dec 2015 13:35:37,684 INFO [main] (com.telefonica.iot.cygnus.nodes.CygnusApplication.main:235) - Starting a Jetty server listening on port 8081 (Management Interface)
17 Dec 2015 13:35:37,700 INFO [main] (org.mortbay.log.Slf4jLog.info:67) - Logging to org.slf4j.impl.Log4jLoggerAdapter(org.mortbay.log) via org.mortbay.log.Slf4jLog
17 Dec 2015 13:35:37,700 INFO [main] (com.telefonica.iot.cygnus.nodes.CygnusApplication.main:238) - Starting Cygnus application
17 Dec 2015 13:35:37,700 INFO [Thread-1] (org.mortbay.log.Slf4jLog.info:67) - jetty-6.1.26
17 Dec 2015 13:35:37,713 INFO [lifecycleSupervisor-1-0] (org.apache.flume.node.PollingPropertiesFileConfigurationProvider.start:61) - Configuration provider starting
17 Dec 2015 13:35:37,715 INFO [conf-file-poller-0] (org.apache.flume.node.PollingPropertiesFileConfigurationProvider$FileWatcherRunnable.run:133) - Reloading configuration file:/usr/cygnus/conf/agent_1.conf
17 Dec 2015 13:35:37,725 INFO [conf-file-poller-0] (org.apache.flume.conf.FlumeConfiguration$AgentConfiguration.addProperty:1016) - Processing:mysql-sink
17 Dec 2015 13:35:37,725 INFO [conf-file-poller-0] (org.apache.flume.conf.FlumeConfiguration$AgentConfiguration.addProperty:1016) - Processing:mysql-sink
17 Dec 2015 13:35:37,725 INFO [conf-file-poller-0] (org.apache.flume.conf.FlumeConfiguration$AgentConfiguration.addProperty:1016) - Processing:mysql-sink
17 Dec 2015 13:35:37,755 INFO [Thread-1] (org.mortbay.log.Slf4jLog.info:67) - Started SocketConnector@0.0.0.0:8081
17 Dec 2015 13:35:37,764 WARN [conf-file-poller-0] (org.apache.flume.conf.FlumeConfiguration$AgentConfiguration.isValid:319) - Agent configuration for 'cygunsagent' does not contain any channels. Marking it as invalid.
17 Dec 2015 13:35:37,765 WARN [conf-file-poller-0] (org.apache.flume.conf.FlumeConfiguration.validateConfiguration:127) - Agent configuration invalid for agent 'cygunsagent'. It will be removed.
17 Dec 2015 13:35:37,766 INFO [conf-file-poller-0] (org.apache.flume.conf.FlumeConfiguration.validateConfiguration:140) - Post-validation flume configuration contains configuration for agents: [cygnusagent]
17 Dec 2015 13:35:37,766 INFO [conf-file-poller-0] (org.apache.flume.node.AbstractConfigurationProvider.loadChannels:150) - Creating channels
17 Dec 2015 13:35:37,778 INFO [conf-file-poller-0] (org.apache.flume.channel.DefaultChannelFactory.create:40) - Creating instance of channel mysql-channel type memory
17 Dec 2015 13:35:37,782 INFO [conf-file-poller-0] (org.apache.flume.node.AbstractConfigurationProvider.loadChannels:205) - Created channel mysql-channel
17 Dec 2015 13:35:37,783 INFO [conf-file-poller-0] (org.apache.flume.source.DefaultSourceFactory.create:39) - Creating instance of source http-source, type org.apache.flume.source.http.HTTPSource
17 Dec 2015 13:35:37,791 INFO [conf-file-poller-0] (com.telefonica.iot.cygnus.handlers.OrionRestHandler.<init>:75) - Cygnus version (0.11.0.2a9c87fb7fd6156225e2eed7fbc9792f1d9c5dfe)
17 Dec 2015 13:35:37,807 INFO [conf-file-poller-0] (com.telefonica.iot.cygnus.handlers.OrionRestHandler.configure:141) - Startup completed
17 Dec 2015 13:35:37,826 INFO [conf-file-poller-0] (org.apache.flume.sink.DefaultSinkFactory.create:40) - Creating instance of sink: mysql-sink, type: com.telefonica.iot.cygnus.sinks.OrionMySQLSink
17 Dec 2015 13:35:37,839 INFO [conf-file-poller-0] (org.apache.flume.node.AbstractConfigurationProvider.getConfiguration:119) - Channel mysql-channel connected to [http-source, mysql-sink]
17 Dec 2015 13:35:37,843 INFO [conf-file-poller-0] (org.apache.flume.node.Application.startAllComponents:138) - Starting new configuration:{ sourceRunners:{http-source=EventDrivenSourceRunner: { source:org.apache.flume.source.http.HTT$
17 Dec 2015 13:35:37,844 INFO [conf-file-poller-0] (org.apache.flume.node.Application.startAllComponents:145) - Starting Channel mysql-channel
17 Dec 2015 13:35:37,910 INFO [lifecycleSupervisor-1-0] (org.apache.flume.instrumentation.MonitoredCounterGroup.register:110) - Monitoried counter group for type: CHANNEL, name: mysql-channel, registered successfully.
17 Dec 2015 13:35:37,910 INFO [lifecycleSupervisor-1-0] (org.apache.flume.instrumentation.MonitoredCounterGroup.start:94) - Component type: CHANNEL, name: mysql-channel started
17 Dec 2015 13:35:37,911 INFO [conf-file-poller-0] (org.apache.flume.node.Application.startAllComponents:173) - Starting Sink mysql-sink
17 Dec 2015 13:35:37,913 INFO [lifecycleSupervisor-1-1] (com.telefonica.iot.cygnus.sinks.OrionMySQLSink.start:153) - [mysql-sink] Startup completed
17 Dec 2015 13:35:37,915 INFO [conf-file-poller-0] (org.apache.flume.node.Application.startAllComponents:184) - Starting Source http-source
17 Dec 2015 13:35:37,916 INFO [lifecycleSupervisor-1-2] (com.telefonica.iot.cygnus.interceptors.GroupingInterceptor.initialize:92) - Grouping rules read:
17 Dec 2015 13:35:37,916 INFO [conf-file-poller-0] (org.apache.flume.node.Application.stopAllComponents:101) - Shutting down configuration: { sourceRunners:{http-source=EventDrivenSourceRunner: { source:org.apache.flume.source.http.HT$
17 Dec 2015 13:35:37,917 INFO [conf-file-poller-0] (org.apache.flume.node.Application.stopAllComponents:105) - Stopping Source http-source
17 Dec 2015 13:35:37,920 ERROR [lifecycleSupervisor-1-2] (com.telefonica.iot.cygnus.interceptors.GroupingInterceptor.parseGroupingRules:165) - Error while parsing the Json-based grouping rules file. Details=null
17 Dec 2015 13:35:37,921 WARN [lifecycleSupervisor-1-2] (com.telefonica.iot.cygnus.interceptors.GroupingInterceptor.initialize:98) - Grouping rules syntax has errors
17 Dec 2015 13:35:37,948 INFO [lifecycleSupervisor-1-2] (org.mortbay.log.Slf4jLog.info:67) - jetty-6.1.26
17 Dec 2015 13:35:37,973 INFO [lifecycleSupervisor-1-2] (org.mortbay.log.Slf4jLog.info:67) - Started SocketConnector@0.0.0.0:5050
17 Dec 2015 13:35:37,974 INFO [lifecycleSupervisor-1-2] (org.apache.flume.instrumentation.MonitoredCounterGroup.register:110) - Monitoried counter group for type: SOURCE, name: http-source, registered successfully.
17 Dec 2015 13:35:37,974 INFO [lifecycleSupervisor-1-2] (org.apache.flume.instrumentation.MonitoredCounterGroup.start:94) - Component type: SOURCE, name: http-source started
17 Dec 2015 13:35:37,974 INFO [conf-file-poller-0] (org.apache.flume.lifecycle.LifecycleSupervisor.unsupervise:171) - Stopping component: EventDrivenSourceRunner: { source:org.apache.flume.source.http.HTTPSource{name:http-source,state$
17 Dec 2015 13:35:37,974 INFO [conf-file-poller-0] (org.mortbay.log.Slf4jLog.info:67) - Stopped SocketConnector@0.0.0.0:5050
17 Dec 2015 13:35:37,975 INFO [conf-file-poller-0] (org.apache.flume.instrumentation.MonitoredCounterGroup.stop:139) - Component type: SOURCE, name: http-source stopped
17 Dec 2015 13:35:37,976 INFO [conf-file-poller-0] (org.apache.flume.instrumentation.MonitoredCounterGroup.stop:145) - Shutdown Metric for type: SOURCE, name: http-source. source.start.time == 1450355737974
17 Dec 2015 13:35:37,976 INFO [conf-file-poller-0] (org.apache.flume.instrumentation.MonitoredCounterGroup.stop:151) - Shutdown Metric for type: SOURCE, name: http-source. source.stop.time == 1450355737975
17 Dec 2015 13:35:37,976 INFO [conf-file-poller-0] (org.apache.flume.instrumentation.MonitoredCounterGroup.stop:167) - Shutdown Metric for type: SOURCE, name: http-source. src.append-batch.accepted == 0
17 Dec 2015 13:35:37,976 INFO [conf-file-poller-0] (org.apache.flume.instrumentation.MonitoredCounterGroup.stop:167) - Shutdown Metric for type: SOURCE, name: http-source. src.append-batch.received == 0
17 Dec 2015 13:35:37,976 INFO [conf-file-poller-0] (org.apache.flume.instrumentation.MonitoredCounterGroup.stop:167) - Shutdown Metric for type: SOURCE, name: http-source. src.append.accepted == 0
17 Dec 2015 13:35:37,976 INFO [conf-file-poller-0] (org.apache.flume.instrumentation.MonitoredCounterGroup.stop:167) - Shutdown Metric for type: SOURCE, name: http-source. src.append.received == 0
17 Dec 2015 13:35:37,977 INFO [conf-file-poller-0] (org.apache.flume.instrumentation.MonitoredCounterGroup.stop:167) - Shutdown Metric for type: SOURCE, name: http-source. src.events.accepted == 0
17 Dec 2015 13:35:37,977 INFO [conf-file-poller-0] (org.apache.flume.instrumentation.MonitoredCounterGroup.stop:167) - Shutdown Metric for type: SOURCE, name: http-source. src.events.received == 0
17 Dec 2015 13:35:37,977 INFO [conf-file-poller-0] (org.apache.flume.instrumentation.MonitoredCounterGroup.stop:167) - Shutdown Metric for type: SOURCE, name: http-source. src.open-connection.count == 0
17 Dec 2015 13:35:37,977 INFO [conf-file-poller-0] (org.apache.flume.source.http.HTTPSource.stop:172) - Http source http-source stopped. Metrics: SOURCE:http-source{src.events.accepted=0, src.open-connection.count=0, src.append.receiv$
17 Dec 2015 13:35:37,977 INFO [conf-file-poller-0] (org.apache.flume.node.Application.stopAllComponents:115) - Stopping Sink mysql-sink
17 Dec 2015 13:35:37,977 INFO [conf-file-poller-0] (org.apache.flume.lifecycle.LifecycleSupervisor.unsupervise:171) - Stopping component: SinkRunner: { policy:org.apache.flume.sink.DefaultSinkProcessor@76da521f counterGroup:{ name:nul$
17 Dec 2015 13:35:37,987 INFO [conf-file-poller-0] (org.apache.flume.node.Application.stopAllComponents:125) - Stopping Channel mysql-channel
17 Dec 2015 13:35:37,987 INFO [conf-file-poller-0] (org.apache.flume.lifecycle.LifecycleSupervisor.unsupervise:171) - Stopping component: org.apache.flume.channel.MemoryChannel{name: mysql-channel}
17 Dec 2015 13:35:37,987 INFO [conf-file-poller-0] (org.apache.flume.instrumentation.MonitoredCounterGroup.stop:139) - Component type: CHANNEL, name: mysql-channel stopped
17 Dec 2015 13:35:37,987 INFO [conf-file-poller-0] (org.apache.flume.instrumentation.MonitoredCounterGroup.stop:145) - Shutdown Metric for type: CHANNEL, name: mysql-channel. channel.start.time == 1450355737910
17 Dec 2015 13:35:37,988 INFO [conf-file-poller-0] (org.apache.flume.instrumentation.MonitoredCounterGroup.stop:151) - Shutdown Metric for type: CHANNEL, name: mysql-channel. channel.stop.time == 1450355737987
17 Dec 2015 13:35:37,988 INFO [conf-file-poller-0] (org.apache.flume.instrumentation.MonitoredCounterGroup.stop:167) - Shutdown Metric for type: CHANNEL, name: mysql-channel. channel.capacity == 1000
17 Dec 2015 13:35:37,988 INFO [conf-file-poller-0] (org.apache.flume.instrumentation.MonitoredCounterGroup.stop:167) - Shutdown Metric for type: CHANNEL, name: mysql-channel. channel.current.size == 0
17 Dec 2015 13:35:37,988 INFO [conf-file-poller-0] (org.apache.flume.instrumentation.MonitoredCounterGroup.stop:167) - Shutdown Metric for type: CHANNEL, name: mysql-channel. channel.event.put.attempt == 0
17 Dec 2015 13:35:37,988 INFO [conf-file-poller-0] (org.apache.flume.instrumentation.MonitoredCounterGroup.stop:167) - Shutdown Metric for type: CHANNEL, name: mysql-channel. channel.event.put.success == 0
17 Dec 2015 13:35:37,988 INFO [conf-file-poller-0] (org.apache.flume.instrumentation.MonitoredCounterGroup.stop:167) - Shutdown Metric for type: CHANNEL, name: mysql-channel. channel.event.take.attempt == 1
17 Dec 2015 13:35:37,989 INFO [conf-file-poller-0] (org.apache.flume.instrumentation.MonitoredCounterGroup.stop:167) - Shutdown Metric for type: CHANNEL, name: mysql-channel. channel.event.take.success == 0
17 Dec 2015 13:35:37,989 INFO [conf-file-poller-0] (org.apache.flume.node.Application.startAllComponents:138) - Starting new configuration:{ sourceRunners:{http-source=EventDrivenSourceRunner: { source:org.apache.flume.source.http.HTT$
17 Dec 2015 13:35:37,989 INFO [conf-file-poller-0] (org.apache.flume.node.Application.startAllComponents:145) - Starting Channel mysql-channel
17 Dec 2015 13:35:37,989 INFO [lifecycleSupervisor-1-3] (org.apache.flume.instrumentation.MonitoredCounterGroup.start:94) - Component type: CHANNEL, name: mysql-channel started
17 Dec 2015 13:35:37,992 INFO [conf-file-poller-0] (org.apache.flume.node.Application.startAllComponents:173) - Starting Sink mysql-sink
17 Dec 2015 13:35:37,993 INFO [lifecycleSupervisor-1-8] (com.telefonica.iot.cygnus.sinks.OrionMySQLSink.start:153) - [mysql-sink] Startup completed
17 Dec 2015 13:35:37,993 INFO [conf-file-poller-0] (org.apache.flume.node.Application.startAllComponents:184) - Starting Source http-source
17 Dec 2015 13:35:37,993 INFO [lifecycleSupervisor-1-4] (com.telefonica.iot.cygnus.interceptors.GroupingInterceptor.initialize:92) - Grouping rules read:
17 Dec 2015 13:35:37,994 ERROR [lifecycleSupervisor-1-4] (com.telefonica.iot.cygnus.interceptors.GroupingInterceptor.parseGroupingRules:165) - Error while parsing the Json-based grouping rules file. Details=null
17 Dec 2015 13:35:37,994 WARN [lifecycleSupervisor-1-4] (com.telefonica.iot.cygnus.interceptors.GroupingInterceptor.initialize:98) - Grouping rules syntax has errors
17 Dec 2015 13:35:37,994 INFO [lifecycleSupervisor-1-4] (org.mortbay.log.Slf4jLog.info:67) - jetty-6.1.26
17 Dec 2015 13:35:37,996 INFO [lifecycleSupervisor-1-4] (org.mortbay.log.Slf4jLog.info:67) - Started SocketConnector@0.0.0.0:5050
17 Dec 2015 13:35:37,996 INFO [lifecycleSupervisor-1-4] (org.apache.flume.instrumentation.MonitoredCounterGroup.start:94) - Component type: SOURCE, name: http-source started
然后我尝试将前面提到的数据订阅到天鹅座：
(curl localhost:1026/v1/subscribeContext -s -S --header 'Content-Type: application/json' \
--header 'Accept: application/json' -d @- | python -mjson.tool) <<EOF
{
"entities": [
{
"type": "Room",
"isPattern": "false",
"id": "Room1"
}
],
"attributes": [
"pressure"
"temperature"
],
"reference": "http://localhost:5050/notify",
"duration": "P1M",
"notifyConditions": [
{
"type": "ONCHANGE",
"condValues": [
"pressure",
"temperature"
]
}
],
"throttling": "PT1S"
}
EOF
即使在我更新了上下文代理的信息之后，它也会触发一个事件：
(curl localhost:1026/v1/updateContext -s -S --header 'Content-Type: application/json' \
--header 'Accept: application/json' -d @- | python -mjson.tool) <<EOF
{
"contextElements": [
{
"type": "Room",
"isPattern": "false",
"id": "Room1",
"attributes": [
{
"name": "temperature",
"type": "float",
"value": "333"
},
{
"name": "pressure",
"type": "integer",
"value": "555"
}
]
}
],
"updateAction": "APPEND"
}
EOF
但是天鹅座日志仍然完全相同，而且它甚至没有任何东西可以通过它。考虑到我的agent_1.conf：
，这很奇怪# Copyright 2014 Telefónica Investigación y Desarrollo, S.A.U
#
# This file is part of fiware-cygnus (FI-WARE project).
#
# fiware-cygnus is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General
# Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any
# later version.
# fiware-cygnus is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
# details.
#
# You should have received a copy of the GNU Affero General Public License along with fiware-cygnus. If not, see
# http://www.gnu.org/licenses/.
#
# For those usages not covered by the GNU Affero General Public License please contact with iot_support at tid dot es
#=============================================
# To be put in APACHE_FLUME_HOME/conf/agent.conf
#
# General configuration template explaining how to setup a sink of each of the available types (HDFS, CKAN, MySQL).
#=============================================
# The next tree fields set the sources, sinks and channels used by Cygnus. You could use different names than the
# ones suggested below, but in that case make sure you keep coherence in properties names along the configuration file.
# Regarding sinks, you can use multiple types at the same time; the only requirement is to provide a channel for each
# one of them (this example shows how to configure 3 sink types at the same time). Even, you can define more than one
# sink of the same type and sharing the channel in order to improve the performance (this is like having
# multi-threading).
cygnusagent.sources = http-source
cygnusagent.sinks = mysql-sink
cygnusagent.channels = mysql-channel
#=============================================
# source configuration
# channel name where to write the notification events
cygnusagent.sources.http-source.channels = mysql-channel
# source class, must not be changed
cygnusagent.sources.http-source.type = org.apache.flume.source.http.HTTPSource
# listening port the Flume source will use for receiving incoming notifications
cygnusagent.sources.http-source.port = 5050
# Flume handler that will parse the notifications, must not be changed
cygnusagent.sources.http-source.handler = com.telefonica.iot.cygnus.handlers.OrionRestHandler
# URL target
cygnusagent.sources.http-source.handler.notification_target = /notify
# Default service (service semantic depends on the persistence sink)
cygnusagent.sources.http-source.handler.default_service = Trace_Data
# Default service path (service path semantic depends on the persistence sink)
cygnusagent.sources.http-source.handler.default_service_path = Sensor
# Number of channel re-injection retries before a Flume event is definitely discarded (-1 means infinite retries)
cygnusagent.sources.http-source.handler.events_ttl = 10
# Source interceptors, do not change
cygnusagent.sources.http-source.interceptors = ts gi
# TimestampInterceptor, do not change
cygnusagent.sources.http-source.interceptors.ts.type = timestamp
# GroupinInterceptor, do not change
cygnusagent.sources.http-source.interceptors.gi.type = com.telefonica.iot.cygnus.interceptors.GroupingInterceptor$Builder
# Grouping rules for the GroupingInterceptor, put the right absolute path to the file if necessary
# See the doc/design/interceptors document for more details
cygnusagent.sources.http-source.interceptors.gi.grouping_rules_conf_file = /usr/cygnus/conf/grouping_rules.conf
# ============================================
# OrionMySQLSink configuration
# channel name from where to read notification events
cygnusagent.sinks.mysql-sink.channel = mysql-channel
# sink class, must not be changed
cygnusagent.sinks.mysql-sink.type = com.telefonica.iot.cygnus.sinks.OrionMySQLSink
# true if the grouping feature is enabled for this sink, false otherwise
cygnusagent.sinks.mysql-sink.enable_grouping = false
# the FQDN/IP address where the MySQL server runs
cygnusagent.sinks.mysql-sink.mysql_host = 127.0.0.1
# the port where the MySQL server listes for incomming connections
cygnusagent.sinks.mysql-sink.mysql_port = 3306
# a valid user in the MySQL server
cygnusagent.sinks.mysql-sink.mysql_username = root
# password for the user above
cygnusagent.sinks.mysql-sink.mysql_password = klasika
# how the attributes are stored, either per row either per column (row, column)
cygnusagent.sinks.mysql-sink.attr_persistence = column
# select the table type from table-by-destination and table-by-service-path
cygnusagent.sinks.mysql-sink.table_type = table-by-destination
# number of notifications to be included within a processing batch
cygnusagent.sinks.mysql-sink.batch_size = 1
# timeout for batch accumulation
cygunsagent.sinks.mysql-sink.batch_timeout = 30
#=============================================
# mysql-channel configuration
# channel type (must not be changed)
cygnusagent.channels.mysql-channel.type = memory
# capacity of the channel
cygnusagent.channels.mysql-channel.capacity = 1000
# amount of bytes that can be sent per transaction
cygnusagent.channels.mysql-channel.transactionCapacity = 100
#============================================
它有5050并通知作为参考地址。我也仔细检查了cygnus_instance_1.conf，并指向agent_1.conf
#####
#
# Configuration file for apache-flume
#
#####
# Copyright 2014 Telefonica Investigación y Desarrollo, S.A.U
#
# This file is part of fiware-cygnus (FI-WARE project).
#
# fiware-cygnus is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General
# Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any
# later version.
# fiware-cygnus is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
# details.
#
# You should have received a copy of the GNU Affero General Public License along with fiware-cygnus. If not, see
# http://www.gnu.org/licenses/.
#
# For those usages not covered by the GNU Affero General Public License please contact with iot_support at tid dot es
# Who to run cygnus as. Note that you may need to use root if you want
# to run cygnus in a privileged port (<1024)
CYGNUS_USER=cygnus
# Where is the config folder
CONFIG_FOLDER=/usr/cygnus/conf
# Which is the config file
CONFIG_FILE=/usr/cygnus/conf/agent_1.conf
# Name of the agent. The name of the agent is not trivial, since it is the base for the Flume parameters
# naming conventions, e.g. it appears in .sources.http-source.channels=...
AGENT_NAME=cygnusagent
# Name of the logfile located at /var/log/cygnus. It is important to put the extension '.log' in order to the log rotation works properly
LOGFILE_NAME=cygnus.log
# Administration port. Must be unique per instance
ADMIN_PORT=8081
# Polling interval (seconds) for the configuration reloading
POLLING_INTERVAL=30
这是/ usr / cygnus / conf中我的配置文件夹的内容：
[root@centos conf]# ls
agent_1.conf cygnus_instance_1.conf flume-env.sh grouping_rules.conf krb5.conf krb5_login.conf log4j.properties.template
agent.conf.template cygnus_instance.conf.template flume-env.sh.template grouping_rules.conf.template krb5.conf.template log4j.properties README.md
我注意到/ etc / cygnus / conf中有一个这样的镜像，但我没有触及任何东西，因为安装只会让我使用/ usr /文件夹。
这是我的Mysql创建语句。在这个表中，我希望收到上下文代理数据，但由于日志没有注册任何内容，我当然没有得到任何结果。
CREATE TABLE sensor_room1_room (
sensorID INT NOT NULL AUTO_INCREMENT,
recvTime mediumtext,
fiwareservicepath text,
entityId text,
entityType text,
pressure text,
pressure_md text,
temperature text,
temperature_md text,
PRIMARY KEY (sensorID));
修改1 ：
这是听众
[root @ centos conf] #nc -l 5050
但是当我尝试订阅或更新上下文时，听众方面没有收到任何内容。我没有考虑到nc的客户端：nc 127.0.0.1 5050因为它成功地发送了我输入的所有内容（甚至是乱码）。
我也尝试过测试：/usr/cygnus/bin/cygnus-flume-ng agent --conf /usr/cygnus/conf/ -f /usr/cygnus/conf/agent_1.conf -n cygnusagent -Dflume.root.logger=DEBUG,console。我尝试了5050和8081端口订阅然后更新上下文，但没有在控制台上读取任何内容。
答案 0 :(得分：0)
因为我真的不知道为什么订阅不起作用，但是由于@fgalan我确实设法读取日志所以我发布的订阅确实触发了事件到天鹅座：
(curl localhost:1026/v1/subscribeContext -s -S --header 'Content-Type: application/json' \
--header 'Accept: application/json' -d @- | python -mjson.tool) <<EOF
{
"entities": [
{
"type": "Room",
"isPattern": "false",
"id": "Room1"
}
],
"attributes": [
"temperature"
],
"reference": "http://localhost:5050/notify",
"duration": "P1M",
"notifyConditions": [
{
"type": "ONCHANGE",
"condValues": [
"pressure"
]
}
],
"throttling": "PT5S"
}
EOF
再次感谢@fgalan！