Explicit partition selection is implemented using a PARTITION option. I am trying to use only the index while reading data from a collection in MongoDB, because I have some big documents, while for this query I need only one field. It turns out that I cannot have indexOnly = true if the index is a multiKey index. For statements that insert rows, the behavior differs in that failure to find a suitable partition causes the statement to fail. This option can be used in a SELECT statement to determine which rows belong to a given partition.
Does anybody have an idea how to use both multikey and indexonly? When write-through is used, Hazelcast will call MapStore.store(key,value) and MapStore.delete(key) for each entry update. Also see: 2.3.1. BackupsHazelcast will distribute map entries onto multiple JVMs (cluster members). Each JVM holds some portion of the data but we don’t want to lose data when a member JVM crashes. To provide data-safety, Hazelcast allows you to specify the number of backup copies you want to have.
Maximum capacity per JVM and the TTL (Time to Live) for a queue can be configured. Please use a more current browser to view our site. Hazelcast will generate cluster-wide unique id for each element in the queue. When a member adds a listener, it is actually registering for events originated in any member in the cluster. User objects (such as MyTask in the example above), that are (en/de)queued have to beSerializable.