Hi all,
I configured a Cassandra Cluster (3 nodes).
Then I created a KEYSPACE:
cql> CREATE KEYSPACE test WITH REPLICATION = { 'class' : 'SimpleStrategy',
'replication_factor' : 2 };
and a table:
cql> CREATE TABLE chiamate_stabili (chiave TEXT PRIMARY KEY, valore
BLOB);
I inserted (synchronous) 10.000 rows (with a Java Client that connects to one
of 3 nodes during connection phase).
Each row has a "valore" that contains an array of 100K bytes.
When Java Client ends, I wait some seconds and then I try this command inside
cql:
cql> SELECT COUNT(*) FROM test.chiamate_stabili LIMIT 10000;
Result is often 10000 but sometime 6666!
The same 6666 records are found with my Java Client.
Here is Java query code:
for(int i = 1; i <= 10000; i++) {
String key = "key-" + i;
Clause eqClause = QueryBuilder.eq("chiave", key);
Statement statement = QueryBuilder.select().all().from("test",
tableName).where(eqClause);
session.execute(statement);
}
Same behaviour with deletes.
When I try to delete all the records sometimes the table is empty,
but sometimes 3333 records are still present.
I think that something is wrong in my code or (probably) in cluster
configuration
but I don't know which kind of tuning or configuration options I can explore.
Any help is very appreciated.
Many thanks in advance.
Moreno
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