Hello,
> Can I add fields without restarting the cluster?
Yes, It can be done via DDL command, as Ilya Kasnacheev mentioned.
Let's assume that you created a cache:
CacheConfiguration cfg = new CacheConfiguration(PERSON_CACHE_NAME)
.setIndexedTypes(Long.class, Person.class);
IgniteCache cache = ignite.getOrCreateCache(cfg);
where the Person class has two fields 'id' and 'firstName'.
after that, you want to add a new field, for example, 'secondName'.
// please take a look for the details:
https://apacheignite-sql.readme.io/docs/alter-table
String ddl = "alter table Person add column secondName varchar";
// execute the DDL command
cache.query(new SqlFieldsQuery(ddl)).getAll();
// new field should be queryable
Iterator iter = cache.query(new SqlFieldsQuery("select secondName from
Person")).getAll());
hope it helps.
Thanks!
--
Sent from: http://apache-ignite-users.70518.x6.nabble.com/
