📅  最后修改于: 2020-11-18 08:44:18             🧑  作者: Mango
Apache NiFi会记录并存储有关流中已提取数据上发生的事件的所有信息。数据来源存储库存储此信息,并提供UI来搜索此事件信息。可以访问完整的NiFi级别和处理器级别的数据源。
下表列出了NiFi数据来源事件列表中的不同字段,其中包含以下字段-
S.No. | Field Name | Description |
---|---|---|
1 | Date/Time | Date and time of event. |
2 | Type | Type of Event like ‘CREATE’. |
3 | FlowFileUuid | UUID of the flowfile on which the event is performed. |
4 | Size | Size of the flowfile. |
5 | Component Name | Name of the component which performed the event. |
6 | Component Type | Type of the component. |
7 | Show lineage | Last column has the show lineage icon, which is used to see the flowfile lineage as shown in the below image. |
要获取有关事件的更多信息,用户可以单击NiFi数据出处UI的第一列中显示的信息图标。
nifi.properties文件中有一些属性,用于管理NiFi Data Provenance存储库。
S.No. | Property Name | Default Value | Description |
---|---|---|---|
1 | nifi.provenance.repository.directory.default | ./provenance_repository | To specify the default path of NiFi data provenance . |
2 | nifi.provenance.repository.max.storage.time | 24 hours | To specify the maximum retention time of NiFi data provenance. |
3 | nifi.provenance.repository.max.storage.size | 1 GB | To specify the maximum storage of NiFi data provenance. |
4 | nifi.provenance.repository.rollover.time | 30 secs | To specify the rollover time of NiFi data provenance. |
5 | nifi.provenance.repository.rollover.size | 100 MB | To specify the rollover size of NiFi data provenance. |
6 | nifi.provenance.repository.indexed.fields | EventType, FlowFileUUID, Filename, ProcessorID, Relationship | To specify the fields used to search and index NiFi data provenance. |