📅 最后修改于: 2020-11-18 08:42:39 🧑 作者: Mango
Apache NiFi是高度可配置的平台。 conf目录中的nifi.properties文件
包含大多数配置。
Apache NiFi的常用属性如下-
本部分包含运行NiFi实例所必需的属性。
| S.No. | Property name | Default Value | description |
|---|---|---|---|
| 1 | nifi.flow.configuration.file | ./conf/flow.xml.gz | This property contains the path to flow.xml file. This file contains all the data flows created in NiFi. |
| 2 | nifi.flow.configuration.archive.enabled | true | This property is used to enable or disable archiving in NiFi. |
| 3 | nifi.flow.configuration.archive.dir | ./conf/archive/ | This property is used to specify the archive directory. |
| 4 | nifi.flow.configuration.archive.max.time | 30 days | This is used to specify the retention time for archiving content. |
| 5 | nifi.flow.configuration.archive.max.storage | 500 MB | it contains the maximum size of archiving directory can grow. |
| 6 | nifi.authorizer.configuration.file | ./conf/authorizers.xml | To specify the authorizer configuration file, which is used for user authorization. |
| 7 | nifi.login.identity.provider.configuration.file | ./conf/login-identity-providers.xml | This property contains the configuration of login identity providers, |
| 8 | nifi.templates.directory | ./conf/templates | This property is used to specify the directory, where NiFi templates will be stored. |
| 9 | nifi.nar.library.directory | ./lib | This property contains the path to library, which NiFi will use to load all the components using NAR files present in this lib folder. |
| 10 | nifi.nar.working.directory | ./work/nar/ | This directory will be storing the unpacked nar files, once NiFi processes them. |
| 11 | nifi.documentation.working.directory | ./work/docs/components | This directory contains the documentation of all components. |
这些属性用于存储有助于启动处理的组件的状态，这些组件在重新启动后以及在下一个计划运行中保留在其中。
| S.No. | Property name | Default Value | description |
|---|---|---|---|
| 1 | nifi.state.management.configuration.file | ./conf/state-management.xml | This property contains the path to state-management.xml file. This file contains all component state present in the data flows of that NiFi instance. |
| 2 | nifi.state.management.provider.local | local-provider | It contains the ID of the local state provider. |
| 3 | nifi.state.management.provider.cluster | zk-provider | This property contains the ID of the cluster-wide state provider. This will be ignored if NiFi is not clustered but must be populated if running in a cluster. |
| 4 | nifi.state.management. embedded. zookeeper. start |
false | This property specifies whether or not this instance of NiFi should run an embedded ZooKeeper server. |
| 5 | nifi.state.management. embedded. zookeeper.properties |
./conf/zookeeper.properties | This property contains the path of the properties file that provides the ZooKeeper properties to use if zookeeper. start> is set to true. |
现在让我们研究一下FlowFile存储库的重要细节-
| S.No. | Property name | Default Value | description |
|---|---|---|---|
| 1 | nifi.flowfile.repository. implementation |
org.apache.nifi. controller. repository. WriteAhead FlowFileRepository |
This property is used to specify either to store the flowfiles in memory or disk. If a user want to stores the flowfiles in memory then change to “org.apache.nifi.controller. repository.VolatileFlowFileRepository”. |
| 2 | nifi.flowfile.repository.directory | ./flowfile_repository | To specify the directory for flowfile repository. |