10.6 The main page

To access the harvesting main page you have to be logged in as an administrator. From the administration page, click the link shown in Figure 10.1, “How to access the harvesting main page” with a red rectangle.

Figure 10.1. How to access the harvesting main page

How to access the harvesting main page

Figure 10.2, “The harvesting main page” shows the harvesting main page. The page shows a list of harvesting nodes that have been created so far. On the bottom side there is a set of buttons to manage these nodes. The meaning of each column is as follows:

  1. Select This is just a check box to select one or more nodes. The selected nodes will be affected by the first row of buttons (start, stop, run, remove). For example, if you select 3 nodes and press the Remove button, these 3 nodes will be removed.

  2. Name This is the node’s name provided by the administrator.

  3. Type The node’s harvesting type chosen when the node was created (GeoNetwork, web folder etc...).

  4. Status This is an icon that reflects the node’s current status. See Table 10.1, “Possible status icons” for all different icons and status description.

  5. Errors This column reflects the status of the last harvesting run, which could have succeeded or not. The result is reflected on this icon and a tool tip will show detailed information. See Table 10.2, “Possible error icons” for all different icons.

  6. Every The time (in days, hours, minutes) between two consecutive harvesting from this node.

  7. Last run The date, in ISO 8601 format, of the most recent harvesting run.

  8. Operation A list of buttons for all possible operations on a node.

  9. Selecting Edit will allow you to change the parameters for a node.

Figure 10.2. The harvesting main page

The harvesting main page

The bottom side of the page contains two rows of buttons. The first row contains buttons that can operate on a set of nodes. You can select the nodes using the check box on the first column and then press the proper button. When the button finishes its action, the check boxes are cleared. Here is the meaning of each button:

  1. Activate When a new harvesting node is created, it’s status is inactive. Use this button to make it active and thus to start harvesting from the remote node.

  2. Deactivate Stops harvesting from a node. Please notice that this does not mean that a currently running harvesting will be stopped but it means that this node will be ignored during future harvesting.

  3. Run This button simply tells the harvesting engine to start harvesting immediately. This is useful for testing during the harvesting setup.

  4. Remove Remove all currently selected nodes. A dialogue will ask the user to confirm the action.

The second row contains general purpose buttons. Here is the meaning of each button:

  1. Back Simply returns to the main administration page.

  2. Add This button allows to create new harvesting nodes.

  3. Refresh Refreshes the current list of nodes querying the server. This can be useful to see if the harvesting list has been altered by someone else or if any harvesting process started.

Table 10.1. Possible status icons

Icon

Status

Description

Inactive

The harvesting from this node is stopped.

Active

The harvesting engine is waiting for the timeout specified for this node. When the timeout is reached, the harvesting starts.

Running

The harvesting engine is currently running, fetching metadata from remote nodes. When the process will be finished, the status will be switched to active.


Table 10.2. Possible error icons

Icon

Description

The harvesting was OK, no errors were found. In this case, a tool tip will show some harvesting results (like the number of harvested metadata etc...).

The harvesting was aborted due to an unexpected condition. In this case, a tool tip will show some information about the error.


Harvesting result tips

If the harvesting succeeds, a tool tip will show detailed information about the harvesting process. This way you can check if the harvester worked as expected or if there is something to fix to the harvesting parameters or somewhere else. The result tip is like a table, where each row refers to

Total This is the total number of metadata found remotely. Metadata with the same id are considered as one. Added Number of metadata added to the system because they were not present locally. Removed Number of metadata that have been removed locally because they are not present in the remote server anymore. Updated Number of metadata that are present locally but that needed to be updated because their last change date was different from the remote one. Unchanged Local metadata left unchanged. Their remote last change date did not change. Unknown schema Number of skipped metadata because their format was not recognised by GeoNetwork. Unretrievable Number of metadata that were ready to be retrieved from the remote server but for some reason there was an exception during the data transfer process. Bad Format Number of skipped metadata because they did not have a valid XML representation. Does not validate Number of metadata which did not validate against their schema. These metadata were harvested with success but skipped due to the validation process. Usually, there is an option to force validation: if you want to harvest these metadata anyway, simply turn it off.

Table 10.3. Result information supported by harvesting types

Result vs harvesting type

GeoNetwork

WebDAV

CSW

OAI-PMH

OGC Service

Total

x

x

x

x

x

Added

x

x

x

x

x

Removed

x

x

x

x

x

Updated

x

x

x

x

Unchanged

x

x

x

x

Unknown schema

x

x

x

x

x

Unretrievable

x

x

x

x

x

Bad Format

x

x

Does Not Validate

x

x

Thumbnails / Thumbnails failed

x

Metadata URL attribute used

x



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