Flume NG未寫入HDFS

Question

我是使用Flume和Hadoop的新手，所以我嘗試設置我能做的最簡單（但有所幫助/現實）的示例。 我在VM客戶端中使用HortonWorks Sandbox 。 在遵循了一個教程12（涉及設置和使用Flume）之后，一切似乎都可以正常工作。

所以我設置了我自己的flume.conf

• 從apache訪問日志中讀取
• 使用內存通道
• 寫入HDFS

很簡單吧？ 這是我的conf文件

agent.sources=exec-source
agent.sinks=hdfs-sink
agent.channels=ch1

agent.sources.exec-source.type=exec
agent.sources.exec-source.command=tail -F /var/log/httpd/access_log

agent.sinks.hdfs-sink.type=hdfs
agent.sinks.hdfs-sink.hdfs.path=/flume/events
agent.sinks.hdfs-sink.hdfs.filePrefix=apacheaccess
agent.sinks.hdfs-sink.hdfs.rollInterval=10
agent.sinks.hdfs-sink.hdfs.rollSize=0

agent.channels.ch1.type=memory
agent.channels.ch1.capacity=1000

agent.sources.exec-source.channels=ch1
agent.sinks.hdfs-sink.channel=ch1

我已經看到有幾個人在寫入HDFS時遇到問題，在大多數情況下，這是因為沒有足夠的日志來填充HDFS塊。 但是，rollInterval = 10應該每10秒生成一個新文件，只要寫入至少1行即可。 我可以在另一個窗口中運行“ tail -F / var / log / httpd / access_log”，並看到一致地將行寫入日志，所以我認為不是那樣。

這是嘗試啟動此代理的命令/輸出

[root@sandbox ~]# flume-ng agent -f /etc/flume/conf/flume.conf -n apache-agent
Warning: No configuration directory set! Use --conf <dir> to override.
Info: Including Hadoop libraries found via (/usr/bin/hadoop) for HDFS access
Info: Excluding /usr/lib/hadoop/libexec/../lib/slf4j-api-1.4.3.jar from classpath
Info: Excluding /usr/lib/hadoop/libexec/../lib/slf4j-log4j12-1.4.3.jar from classpath
Info: Including HBASE libraries found via (/usr/bin/hbase) for HBASE access
Info: Excluding /usr/lib/hbase/bin/../lib/slf4j-api-1.6.1.jar from classpath
Info: Excluding /usr/lib/hbase/bin/../lib/slf4j-log4j12-1.6.1.jar from classpath
Info: Excluding /usr/lib/hadoop/lib/slf4j-api-1.4.3.jar from classpath
Info: Excluding /usr/lib/hadoop/lib/slf4j-log4j12-1.4.3.jar from classpath
Info: Excluding /usr/lib/zookeeper/lib/slf4j-api-1.6.1.jar from classpath
Info: Excluding /usr/lib/zookeeper/lib/slf4j-log4j12-1.6.1.jar from classpath
Info: Excluding /usr/lib/hadoop/libexec/../lib/slf4j-api-1.4.3.jar from classpath
Info: Excluding /usr/lib/hadoop/libexec/../lib/slf4j-log4j12-1.4.3.jar from classpath
+ exec /usr/jdk/jdk1.6.0_31//bin/java -Xmx20m -cp '/usr/lib/flume/lib/*:/usr/lib/hadoop/libexec/../conf:/usr/jdk/jdk1.6.0_31/lib/tools.jar:/usr/lib/hadoop/libexec/..:/usr/lib/hadoop/libexec/../hadoop-core-1.2.0.1.3.0.0-107.jar:/usr/lib/hadoop/libexec/../lib/ambari-log4j-1.2.3.7.jar:/usr/lib/hadoop/libexec/../lib/asm-3.2.jar:/usr/lib/hadoop/libexec/../lib/aspectjrt-1.6.11.jar:/usr/lib/hadoop/libexec/../lib/aspectjtools-1.6.11.jar:/usr/lib/hadoop/libexec/../lib/commons-beanutils-1.7.0.jar:/usr/lib/hadoop/libexec/../lib/commons-beanutils-core-1.8.0.jar:/usr/lib/hadoop/libexec/../lib/commons-cli-1.2.jar:/usr/lib/hadoop/libexec/../lib/commons-codec-1.4.jar:/usr/lib/hadoop/libexec/../lib/commons-collections-3.2.1.jar:/usr/lib/hadoop/libexec/../lib/commons-configuration-1.6.jar:/usr/lib/hadoop/libexec/../lib/commons-daemon-1.0.1.jar:/usr/lib/hadoop/libexec/../lib/commons-digester-1.8.jar:/usr/lib/hadoop/libexec/../lib/commons-el-1.0.jar:/usr/lib/hadoop/libexec/../lib/commons-httpclient-3.0.1.jar:/usr/lib/hadoop/libexec/../lib/commons-io-2.1.jar:/usr/lib/hadoop/libexec/../lib/commons-lang-2.4.jar:/usr/lib/hadoop/libexec/../lib/commons-logging-1.1.1.jar:/usr/lib/hadoop/libexec/../lib/commons-logging-api-1.0.4.jar:/usr/lib/hadoop/libexec/../lib/commons-math-2.1.jar:/usr/lib/hadoop/libexec/../lib/commons-net-3.1.jar:/usr/lib/hadoop/libexec/../lib/core-3.1.1.jar:/usr/lib/hadoop/libexec/../lib/guava-11.0.2.jar:/usr/lib/hadoop/libexec/../lib/hadoop-capacity-scheduler-1.2.0.1.3.0.0-107.jar:/usr/lib/hadoop/libexec/../lib/hadoop-fairscheduler-1.2.0.1.3.0.0-107.jar:/usr/lib/hadoop/libexec/../lib/hadoop-lzo-0.5.0.jar:/usr/lib/hadoop/libexec/../lib/hadoop-thriftfs-1.2.0.1.3.0.0-107.jar:/usr/lib/hadoop/libexec/../lib/hadoop-tools.jar:/usr/lib/hadoop/libexec/../lib/hsqldb-1.8.0.10.jar:/usr/lib/hadoop/libexec/../lib/hue-plugins-2.2.0-SNAPSHOT.jar:/usr/lib/hadoop/libexec/../lib/jackson-core-asl-1.8.8.jar:/usr/lib/hadoop/libexec/../lib/jackson-mapper-asl-1.8.8.jar:/usr/lib/hadoop/libexec/../lib/jasper-compiler-5.5.12.jar:/usr/lib/hadoop/libexec/../lib/jasper-runtime-5.5.12.jar:/usr/lib/hadoop/libexec/../lib/jdeb-0.8.jar:/usr/lib/hadoop/libexec/../lib/jersey-core-1.8.jar:/usr/lib/hadoop/libexec/../lib/jersey-json-1.8.jar:/usr/lib/hadoop/libexec/../lib/jersey-server-1.8.jar:/usr/lib/hadoop/libexec/../lib/jets3t-0.6.1.jar:/usr/lib/hadoop/libexec/../lib/jetty-6.1.26.jar:/usr/lib/hadoop/libexec/../lib/jetty-util-6.1.26.jar:/usr/lib/hadoop/libexec/../lib/jsch-0.1.42.jar:/usr/lib/hadoop/libexec/../lib/junit-4.5.jar:/usr/lib/hadoop/libexec/../lib/kfs-0.2.2.jar:/usr/lib/hadoop/libexec/../lib/log4j-1.2.15.jar:/usr/lib/hadoop/libexec/../lib/mockito-all-1.8.5.jar:/usr/lib/hadoop/libexec/../lib/netty-3.6.2.Final.jar:/usr/lib/hadoop/libexec/../lib/oro-2.0.8.jar:/usr/lib/hadoop/libexec/../lib/postgresql-9.1-901-1.jdbc4.jar:/usr/lib/hadoop/libexec/../lib/servlet-api-2.5-20081211.jar:/usr/lib/hadoop/libexec/../lib/xmlenc-0.52.jar:/usr/lib/hadoop/libexec/../lib/jsp-2.1/jsp-2.1.jar:/usr/lib/hadoop/libexec/../lib/jsp-2.1/jsp-api-2.1.jar:/usr/lib/hbase/bin/../conf:/usr/jdk/jdk1.6.0_31/lib/tools.jar:/usr/lib/hbase/bin/..:/usr/lib/hbase/bin/../hbase-0.94.6.1.3.0.0-107-security.jar:/usr/lib/hbase/bin/../hbase-0.94.6.1.3.0.0-107-security-tests.jar:/usr/lib/hbase/bin/../lib/activation-1.1.jar:/usr/lib/hbase/bin/../lib/asm-3.1.jar:/usr/lib/hbase/bin/../lib/avro-1.5.3.jar:/usr/lib/hbase/bin/../lib/avro-ipc-1.5.3.jar:/usr/lib/hbase/bin/../lib/commons-beanutils-1.7.0.jar:/usr/lib/hbase/bin/../lib/commons-beanutils-core-1.8.0.jar:/usr/lib/hbase/bin/../lib/commons-cli-1.2.jar:/usr/lib/hbase/bin/../lib/commons-codec-1.4.jar:/usr/lib/hbase/bin/../lib/commons-collections-3.2.1.jar:/usr/lib/hbase/bin/../lib/commons-configuration-1.6.jar:/usr/lib/hbase/bin/../lib/commons-digester-1.8.jar:/usr/lib/hbase/bin/../lib/commons-el-1.0.jar:/usr/lib/hbase/bin/../lib/commons-httpclient-3.1.jar:/usr/lib/hbase/bin/../lib/commons-io-2.1.jar:/usr/lib/hbase/bin/../lib/commons-lang-2.5.jar:/usr/lib/hbase/bin/../lib/commons-logging-1.1.1.jar:/usr/lib/hbase/bin/../lib/commons-math-2.1.jar:/usr/lib/hbase/bin/../lib/commons-net-1.4.1.jar:/usr/lib/hbase/bin/../lib/core-3.1.1.jar:/usr/lib/hbase/bin/../lib/guava-11.0.2.jar:/usr/lib/hbase/bin/../lib/hadoop-core.jar:/usr/lib/hbase/bin/../lib/high-scale-lib-1.1.1.jar:/usr/lib/hbase/bin/../lib/httpclient-4.1.2.jar:/usr/lib/hbase/bin/../lib/httpcore-4.1.3.jar:/usr/lib/hbase/bin/../lib/jackson-core-asl-1.8.8.jar:/usr/lib/hbase/bin/../lib/jackson-jaxrs-1.8.8.jar:/usr/lib/hbase/bin/../lib/jackson-mapper-asl-1.8.8.jar:/usr/lib/hbase/bin/../lib/jackson-xc-1.8.8.jar:/usr/lib/hbase/bin/../lib/jamon-runtime-2.3.1.jar:/usr/lib/hbase/bin/../lib/jasper-compiler-5.5.23.jar:/usr/lib/hbase/bin/../lib/jasper-runtime-5.5.23.jar:/usr/lib/hbase/bin/../lib/jaxb-api-2.1.jar:/usr/lib/hbase/bin/../lib/jaxb-impl-2.2.3-1.jar:/usr/lib/hbase/bin/../lib/jersey-core-1.8.jar:/usr/lib/hbase/bin/../lib/jersey-json-1.8.jar:/usr/lib/hbase/bin/../lib/jersey-server-1.8.jar:/usr/lib/hbase/bin/../lib/jettison-1.1.jar:/usr/lib/hbase/bin/../lib/jetty-6.1.26.jar:/usr/lib/hbase/bin/../lib/jetty-util-6.1.26.jar:/usr/lib/hbase/bin/../lib/jruby-complete-1.6.5.jar:/usr/lib/hbase/bin/../lib/jsp-2.1-6.1.14.jar:/usr/lib/hbase/bin/../lib/jsp-api-2.1-6.1.14.jar:/usr/lib/hbase/bin/../lib/jsr305-1.3.9.jar:/usr/lib/hbase/bin/../lib/junit-4.10-HBASE-1.jar:/usr/lib/hbase/bin/../lib/libthrift-0.8.0.jar:/usr/lib/hbase/bin/../lib/log4j-1.2.16.jar:/usr/lib/hbase/bin/../lib/metrics-core-2.1.2.jar:/usr/lib/hbase/bin/../lib/netty-3.2.4.Final.jar:/usr/lib/hbase/bin/../lib/protobuf-java-2.4.0a.jar:/usr/lib/hbase/bin/../lib/servlet-api-2.5-6.1.14.jar:/usr/lib/hbase/bin/../lib/snappy-java-1.0.3.2.jar:/usr/lib/hbase/bin/../lib/stax-api-1.0.1.jar:/usr/lib/hbase/bin/../lib/velocity-1.7.jar:/usr/lib/hbase/bin/../lib/xmlenc-0.52.jar:/usr/lib/hbase/bin/../lib/zookeeper.jar:/etc/hadoop/conf:/usr/lib/hadoop/bin:/usr/lib/hadoop/build.xml:/usr/lib/hadoop/CHANGES.txt:/usr/lib/hadoop/conf:/usr/lib/hadoop/contrib:/usr/lib/hadoop/hadoop-ant-1.2.0.1.3.0.0-107.jar:/usr/lib/hadoop/hadoop-ant.jar:/usr/lib/hadoop/hadoop-client-1.2.0.1.3.0.0-107.jar:/usr/lib/hadoop/hadoop-client.jar:/usr/lib/hadoop/hadoop-core-1.2.0.1.3.0.0-107.jar:/usr/lib/hadoop/hadoop-core.jar:/usr/lib/hadoop/hadoop-examples-1.2.0.1.3.0.0-107.jar:/usr/lib/hadoop/hadoop-examples.jar:/usr/lib/hadoop/hadoop-minicluster-1.2.0.1.3.0.0-107.jar:/usr/lib/hadoop/hadoop-minicluster.jar:/usr/lib/hadoop/hadoop-test-1.2.0.1.3.0.0-107.jar:/usr/lib/hadoop/hadoop-test.jar:/usr/lib/hadoop/hadoop-tools-1.2.0.1.3.0.0-107.jar:/usr/lib/hadoop/hadoop-tools.jar:/usr/lib/hadoop/HDP-CHANGES.txt:/usr/lib/hadoop/ivy:/usr/lib/hadoop/ivy.xml:/usr/lib/hadoop/lib:/usr/lib/hadoop/libexec:/usr/lib/hadoop/LICENSE.txt:/usr/lib/hadoop/logs:/usr/lib/hadoop/LONGWING-CHANGES.txt:/usr/lib/hadoop/NOTICE.txt:/usr/lib/hadoop/pids:/usr/lib/hadoop/README.txt:/usr/lib/hadoop/sbin:/usr/lib/hadoop/webapps:/usr/lib/hadoop/lib/ambari-log4j-1.2.3.7.jar:/usr/lib/hadoop/lib/asm-3.2.jar:/usr/lib/hadoop/lib/aspectjrt-1.6.11.jar:/usr/lib/hadoop/lib/aspectjtools-1.6.11.jar:/usr/lib/hadoop/lib/commons-beanutils-1.7.0.jar:/usr/lib/hadoop/lib/commons-beanutils-core-1.8.0.jar:/usr/lib/hadoop/lib/commons-cli-1.2.jar:/usr/lib/hadoop/lib/commons-codec-1.4.jar:/usr/lib/hadoop/lib/commons-collections-3.2.1.jar:/usr/lib/hadoop/lib/commons-configuration-1.6.jar:/usr/lib/hadoop/lib/commons-daemon-1.0.1.jar:/usr/lib/hadoop/lib/commons-digester-1.8.jar:/usr/lib/hadoop/lib/commons-el-1.0.jar:/usr/lib/hadoop/lib/commons-httpclient-3.0.1.jar:/usr/lib/hadoop/lib/commons-io-2.1.jar:/usr/lib/hadoop/lib/commons-lang-2.4.jar:/usr/lib/hadoop/lib/commons-logging-1.1.1.jar:/usr/lib/hadoop/lib/commons-logging-api-1.0.4.jar:/usr/lib/hadoop/lib/commons-math-2.1.jar:/usr/lib/hadoop/lib/commons-net-3.1.jar:/usr/lib/hadoop/lib/core-3.1.1.jar:/usr/lib/hadoop/lib/guava-11.0.2.jar:/usr/lib/hadoop/lib/hadoop-capacity-scheduler-1.2.0.1.3.0.0-107.jar:/usr/lib/hadoop/lib/hadoop-fairscheduler-1.2.0.1.3.0.0-107.jar:/usr/lib/hadoop/lib/hadoop-lzo-0.5.0.jar:/usr/lib/hadoop/lib/hadoop-thriftfs-1.2.0.1.3.0.0-107.jar:/usr/lib/hadoop/lib/hadoop-tools.jar:/usr/lib/hadoop/lib/hsqldb-1.8.0.10.jar:/usr/lib/hadoop/lib/hsqldb-1.8.0.10.LICENSE.txt:/usr/lib/hadoop/lib/hue-plugins-2.2.0-SNAPSHOT.jar:/usr/lib/hadoop/lib/jackson-core-asl-1.8.8.jar:/usr/lib/hadoop/lib/jackson-mapper-asl-1.8.8.jar:/usr/lib/hadoop/lib/jasper-compiler-5.5.12.jar:/usr/lib/hadoop/lib/jasper-runtime-5.5.12.jar:/usr/lib/hadoop/lib/jdeb-0.8.jar:/usr/lib/hadoop/lib/jdiff:/usr/lib/hadoop/lib/jersey-core-1.8.jar:/usr/lib/hadoop/lib/jersey-json-1.8.jar:/usr/lib/hadoop/lib/jersey-server-1.8.jar:/usr/lib/hadoop/lib/jets3t-0.6.1.jar:/usr/lib/hadoop/lib/jetty-6.1.26.jar:/usr/lib/hadoop/lib/jetty-util-6.1.26.jar:/usr/lib/hadoop/lib/jsch-0.1.42.jar:/usr/lib/hadoop/lib/jsp-2.1:/usr/lib/hadoop/lib/junit-4.5.jar:/usr/lib/hadoop/lib/kfs-0.2.2.jar:/usr/lib/hadoop/lib/kfs-0.2.LICENSE.txt:/usr/lib/hadoop/lib/log4j-1.2.15.jar:/usr/lib/hadoop/lib/mockito-all-1.8.5.jar:/usr/lib/hadoop/lib/native:/usr/lib/hadoop/lib/netty-3.6.2.Final.jar:/usr/lib/hadoop/lib/oro-2.0.8.jar:/usr/lib/hadoop/lib/hue-plugins-2.2.0-SNAPSHOT.jar:/usr/lib/hadoop/lib/hue-plugins-2.2.0-SNAPSHOT.jar:/usr/lib/hadoop/lib/*plugin*jar:/usr/lib/hadoop/lib/postgresql-9.1-901-1.jdbc4.jar:/usr/lib/hadoop/lib/servlet-api-2.5-20081211.jar:/usr/lib/hadoop/lib/xmlenc-0.52.jar:/usr/lib/zookeeper/bin:/usr/lib/zookeeper/conf:/usr/lib/zookeeper/lib:/usr/lib/zookeeper/zookeeper-3.4.5.1.3.0.0-107.jar:/usr/lib/zookeeper/zookeeper.jar:/usr/lib/zookeeper/lib/ant-1.8.0.jar:/usr/lib/zookeeper/lib/ant-launcher-1.8.0.jar:/usr/lib/zookeeper/lib/backport-util-concurrent-3.1.jar:/usr/lib/zookeeper/lib/classworlds-1.1-alpha-2.jar:/usr/lib/zookeeper/lib/commons-codec-1.6.jar:/usr/lib/zookeeper/lib/commons-io-2.2.jar:/usr/lib/zookeeper/lib/commons-logging-1.1.1.jar:/usr/lib/zookeeper/lib/httpclient-4.2.3.jar:/usr/lib/zookeeper/lib/httpcore-4.2.3.jar:/usr/lib/zookeeper/lib/jline-0.9.94.jar:/usr/lib/zookeeper/lib/jsoup-1.7.1.jar:/usr/lib/zookeeper/lib/log4j-1.2.15.jar:/usr/lib/zookeeper/lib/maven-ant-tasks-2.1.3.jar:/usr/lib/zookeeper/lib/maven-artifact-2.2.1.jar:/usr/lib/zookeeper/lib/maven-artifact-manager-2.2.1.jar:/usr/lib/zookeeper/lib/maven-error-diagnostics-2.2.1.jar:/usr/lib/zookeeper/lib/maven-model-2.2.1.jar:/usr/lib/zookeeper/lib/maven-plugin-registry-2.2.1.jar:/usr/lib/zookeeper/lib/maven-profile-2.2.1.jar:/usr/lib/zookeeper/lib/maven-project-2.2.1.jar:/usr/lib/zookeeper/lib/maven-repository-metadata-2.2.1.jar:/usr/lib/zookeeper/lib/maven-settings-2.2.1.jar:/usr/lib/zookeeper/lib/nekohtml-1.9.6.2.jar:/usr/lib/zookeeper/lib/netty-3.2.2.Final.jar:/usr/lib/zookeeper/lib/plexus-container-default-1.0-alpha-9-stable-1.jar:/usr/lib/zookeeper/lib/plexus-interpolation-1.11.jar:/usr/lib/zookeeper/lib/plexus-utils-3.0.8.jar:/usr/lib/zookeeper/lib/wagon-file-1.0-beta-6.jar:/usr/lib/zookeeper/lib/wagon-http-2.4.jar:/usr/lib/zookeeper/lib/wagon-http-lightweight-1.0-beta-6.jar:/usr/lib/zookeeper/lib/wagon-http-shared-1.0-beta-6.jar:/usr/lib/zookeeper/lib/wagon-http-shared4-2.4.jar:/usr/lib/zookeeper/lib/wagon-provider-api-2.4.jar:/usr/lib/zookeeper/lib/xercesMinimal-1.9.6.2.jar:/usr/lib/hadoop/libexec/../conf:/usr/jdk/jdk1.6.0_31/lib/tools.jar:/usr/lib/hadoop/libexec/..:/usr/lib/hadoop/libexec/../hadoop-core-1.2.0.1.3.0.0-107.jar:/usr/lib/hadoop/libexec/../lib/ambari-log4j-1.2.3.7.jar:/usr/lib/hadoop/libexec/../lib/asm-3.2.jar:/usr/lib/hadoop/libexec/../lib/aspectjrt-1.6.11.jar:/usr/lib/hadoop/libexec/../lib/aspectjtools-1.6.11.jar:/usr/lib/hadoop/libexec/../lib/commons-beanutils-1.7.0.jar:/usr/lib/hadoop/libexec/../lib/commons-beanutils-core-1.8.0.jar:/usr/lib/hadoop/libexec/../lib/commons-cli-1.2.jar:/usr/lib/hadoop/libexec/../lib/commons-codec-1.4.jar:/usr/lib/hadoop/libexec/../lib/commons-collections-3.2.1.jar:/usr/lib/hadoop/libexec/../lib/commons-configuration-1.6.jar:/usr/lib/hadoop/libexec/../lib/commons-daemon-1.0.1.jar:/usr/lib/hadoop/libexec/../lib/commons-digester-1.8.jar:/usr/lib/hadoop/libexec/../lib/commons-el-1.0.jar:/usr/lib/hadoop/libexec/../lib/commons-httpclient-3.0.1.jar:/usr/lib/hadoop/libexec/../lib/commons-io-2.1.jar:/usr/lib/hadoop/libexec/../lib/commons-lang-2.4.jar:/usr/lib/hadoop/libexec/../lib/commons-logging-1.1.1.jar:/usr/lib/hadoop/libexec/../lib/commons-logging-api-1.0.4.jar:/usr/lib/hadoop/libexec/../lib/commons-math-2.1.jar:/usr/lib/hadoop/libexec/../lib/commons-net-3.1.jar:/usr/lib/hadoop/libexec/../lib/core-3.1.1.jar:/usr/lib/hadoop/libexec/../lib/guava-11.0.2.jar:/usr/lib/hadoop/libexec/../lib/hadoop-capacity-scheduler-1.2.0.1.3.0.0-107.jar:/usr/lib/hadoop/libexec/../lib/hadoop-fairscheduler-1.2.0.1.3.0.0-107.jar:/usr/lib/hadoop/libexec/../lib/hadoop-lzo-0.5.0.jar:/usr/lib/hadoop/libexec/../lib/hadoop-thriftfs-1.2.0.1.3.0.0-107.jar:/usr/lib/hadoop/libexec/../lib/hadoop-tools.jar:/usr/lib/hadoop/libexec/../lib/hsqldb-1.8.0.10.jar:/usr/lib/hadoop/libexec/../lib/hue-plugins-2.2.0-SNAPSHOT.jar:/usr/lib/hadoop/libexec/../lib/jackson-core-asl-1.8.8.jar:/usr/lib/hadoop/libexec/../lib/jackson-mapper-asl-1.8.8.jar:/usr/lib/hadoop/libexec/../lib/jasper-compiler-5.5.12.jar:/usr/lib/hadoop/libexec/../lib/jasper-runtime-5.5.12.jar:/usr/lib/hadoop/libexec/../lib/jdeb-0.8.jar:/usr/lib/hadoop/libexec/../lib/jersey-core-1.8.jar:/usr/lib/hadoop/libexec/../lib/jersey-json-1.8.jar:/usr/lib/hadoop/libexec/../lib/jersey-server-1.8.jar:/usr/lib/hadoop/libexec/../lib/jets3t-0.6.1.jar:/usr/lib/hadoop/libexec/../lib/jetty-6.1.26.jar:/usr/lib/hadoop/libexec/../lib/jetty-util-6.1.26.jar:/usr/lib/hadoop/libexec/../lib/jsch-0.1.42.jar:/usr/lib/hadoop/libexec/../lib/junit-4.5.jar:/usr/lib/hadoop/libexec/../lib/kfs-0.2.2.jar:/usr/lib/hadoop/libexec/../lib/log4j-1.2.15.jar:/usr/lib/hadoop/libexec/../lib/mockito-all-1.8.5.jar:/usr/lib/hadoop/libexec/../lib/netty-3.6.2.Final.jar:/usr/lib/hadoop/libexec/../lib/oro-2.0.8.jar:/usr/lib/hadoop/libexec/../lib/postgresql-9.1-901-1.jdbc4.jar:/usr/lib/hadoop/libexec/../lib/servlet-api-2.5-20081211.jar:/usr/lib/hadoop/libexec/../lib/xmlenc-0.52.jar:/usr/lib/hadoop/libexec/../lib/jsp-2.1/jsp-2.1.jar:/usr/lib/hadoop/libexec/../lib/jsp-2.1/jsp-api-2.1.jar:/conf' -Djava.library.path=:/usr/lib/hadoop/libexec/../lib/native/Linux-amd64-64:/usr/lib/hadoop/libexec/../lib/native/Linux-amd64-64:/usr/lib/hbase/bin/../lib/native/Linux-amd64-64 org.apache.flume.node.Application -f /etc/flume/conf/flume.conf -n apache-agent
13/09/03 12:35:11 INFO node.PollingPropertiesFileConfigurationProvider: Configuration provider starting
13/09/03 12:35:11 INFO node.PollingPropertiesFileConfigurationProvider: Reloading configuration file:/etc/flume/conf/flume.conf
13/09/03 12:35:11 INFO conf.FlumeConfiguration: Added sinks: hdfs-sink Agent: agent
13/09/03 12:35:11 INFO conf.FlumeConfiguration: Processing:hdfs-sink
13/09/03 12:35:11 INFO conf.FlumeConfiguration: Processing:hdfs-sink
13/09/03 12:35:11 INFO conf.FlumeConfiguration: Processing:hdfs-sink
13/09/03 12:35:11 INFO conf.FlumeConfiguration: Processing:hdfs-sink
13/09/03 12:35:11 INFO conf.FlumeConfiguration: Processing:hdfs-sink
13/09/03 12:35:11 INFO conf.FlumeConfiguration: Processing:hdfs-sink
13/09/03 12:35:11 INFO conf.FlumeConfiguration: Post-validation flume configuration contains configuration for agents: [agent]
13/09/03 12:35:11 WARN node.AbstractConfigurationProvider: No configuration found for this host:apache-agent
13/09/03 12:35:11 INFO node.Application: Starting new configuration:{ sourceRunners:{} sinkRunners:{} channels:{} }

現在，我意識到我缺少了幾件事。

1) I expect to see something along the lines of "INFO instrumentation.MonitoredCounterGroup: Component type: SINK, name: hdfs-sink started" as my last line, which I don't
2) If I use the command “hadoop fs -lsr /flume” I should see new logs in my HDFS, but I don't. The last logs are from 8/28/2013, when I did the tutorial.

我也不希望在那看到WARN線，但是我不確定為什么在那兒，所以也許那是我的問題，有人可以告訴我原因。

所以我的問題是：

1) Can anyone tell me what might be going wrong here?
2) When I get this problem sorted out, is there anything else I should be looking for to see what Flume is working correctly, reading what it should and writing to where it should and when?

Answer 1

答案是，當然，在啟動水槽時要為您的代理命名，使其與配置文件中的代理名稱相同。 所以我的命令行應該以“ -n agent”而不是“ -n apache-agent”結束，因為我的flume.conf文件指定了“ agent.X”

之后，一切似乎都可以正常工作。

Answer 2

在您指定的配置文件中

agent.sources=exec-source
agent.sinks=hdfs-sink
agent.channels=ch1

因此代理名稱為“ agent”，flume希望在運行flume-agent時應使用與配置文件中指定的名稱相同的名稱，因此命令應為

/usr/lib/flume/bin/flume-ng agent -n agent

Answer 3

您是否在步驟3中設置了代理 ？

查看原始博客文章和Hadoop UI Hue及其Hadoop教程 。