Starting with version 6.1.2, the Dgraph checks permissions on index directories before applying partial updates.

If the required read/write permissions are missing, the Dgraph fails to apply the update and issues an error in the standard error log. It also logs the path to the index directories to which it does not have read/write permissions.

The Dgraph checks permissions on these directories in the Endeca/myApp/dgidx_output/myApp_indexes:

(The filepaths assume that the Deployment Template scripts are used to set up the application.)

Both of these directories should have read and write permissions to allow accessing them by the Dgraph. However, due to file system issues or hardware maintenance issues combined with the Oracle implementation's topology, it is possible that under some conditions these permissions are reset. This may make these directories unaccessible by the Dgraph.