11.2.1 How to delete EADS servers from a cluster (using only memory caches)

(1) Check the data distribution among the ranges

Execute the eztool storeusage --replica command to check the distribution of the data among the ranges.

eztool storeusage --replica

Command execution example

Based on the execution results of the eztool storeusage --replica command, determine the ranges from which EADS servers need to be deleted.

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(2) Terminate all EADS servers in the cluster (after exporting data to files)

Export data to files and then terminate all EADS servers in the cluster.

For details about this procedure, see 10.5 Terminating the EADS servers (after exporting data from memory to files).

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(3) Change the cluster properties

Because the number of EADS servers that make up the cluster is decreasing, you must change the cluster properties.

Delete from the cluster property files for all the EADS servers the following parameters for each EADS server that will be deleted:

• eads.node.EADS-server-ID.address

• eads.node.EADS-server-ID.port

• eads.node.EADS-server-ID.position

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(4) Back up the store data files of the EADS servers to be deleted

Back up to any directory the store data files of the EADS servers you want to delete.

Copy the store data files of the EADS servers you want to be delete to a storage location containing the store data files of the EADS servers that you are not deleting.

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(5) Start all EADS servers in the cluster (and importing data from files)

Start all EADS servers in the cluster, and then import back into memory the data that was exported to files during the previous session.

For details about the procedure, see 10.3 Starting the EADS servers (and creating caches by importing data from files).

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