Reports Manager
The Reports Manager fetches the fsimage from the NameNode at regular intervals. It reads the fsimage and creates a Lucene index for it. To improve the indexing performance, Cloudera recommends provisioning a host as powerful as possible and dedicating an SSD disk to the Reports Manager.
Component | Java Heap | CPU | Disk |
---|---|---|---|
Reports Manager |
The recommended value is (4 * FsImage size + 2 GB). For Example: For a 20 GB FsImage size; this means 4 * 20 GB + 2 GB = 82 GB. |
|
1 dedicated disk that is at least 20 times the size of the fsimage. Cloudera strongly recommends using SSD disks. |