Hi Ignite Team, I have stumbled across a problem when iterating over a persistence cache that does not fit into memory.
The partitioned cache consists of 50M entries across 3 nodes with a total cache size of 3*80GB on the volumes. I use either a ScanQuery or a SQL query over a non-indexed table. Both results are the same. It can take over an hour to iterate over the entire cache. The problem seems to be that the cache is read in random 4kB (page size) chunks unparallelized from the volume. A page size of 8kB exactly doubles the iteration speed. Is this Ignite's default behaviour? Is there an option to enable a more streaming like solution? Of course, the order of the items in the cache doesn't matter. Thanks, Sebastian -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/
