Hitachi

In-Memory Data Grid Hitachi Elastic Application Data Store


10.3.2 How to start the EADS servers (resuming caches on disk)

This subsection is applicable when you will be using disk caches or two-way caches.

This subsection explains how to start the EADS servers and then resume disk caches and two-way caches by accessing the cache files in the status they were in when the previous session terminated.

Organization of this subsection

(1) Start the EADS servers

Log in to the host on which you plan to start the EADS server, and then execute the ezstart command to start the EADS server. You must execute this command for each EADS server.

ezstart

(2) Verify that initialization is finished

After an EADS server starts up successfully, it changes to initialized status.

Execute the eztool status command to verify that the initialization of all EADS servers is finished.

eztool status

Command execution example

[Figure]

If the initialization is finished, initialized is displayed in the State column.

(3) Access cache files to resume the caches

Execute the eztool resume command to access the cache files and resume the caches.

eztool resume

Command execution example

[Figure]

For a two-way cache, the contents of the cache data files are imported into memory when the cache is resumed.

(4) Verify that the caches have been resumed

Execute the eztool listcache command to display a list of caches.

eztool listcache

Command execution example

[Figure]

Check the cache names in the CacheName column and the cache types in the CacheType column to verify that the caches have been resumed as intended.

(5) Open the cluster

As is the case with closed status, in initialized status, the EADS servers do not accept requests from the EADS client. Execute the eztool open command to open the cluster.

eztool open

Command execution example

[Figure]

(6) Verify that the EADS servers have been opened

Execute the eztool status command to verify that all EADS servers have been opened.

eztool status

Command execution example

[Figure]

If the EADS servers have been opened, running is displayed in the State column.