Eugene Koifman created HIVE-17295:
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Summary: Make MemoryManagerImpl.ROWS_BETWEEN_CHECKS configurable
Key: HIVE-17295
URL: https://issues.apache.org/jira/browse/HIVE-17295
Project: Hive
Issue Type: Bug
Reporter: Eugene Koifman
Assignee: Eugene Koifman
currently addedRow() looks like
{noformat}
public void addedRow(int rows) throws IOException {
rowsAddedSinceCheck += rows;
if (rowsAddedSinceCheck >= ROWS_BETWEEN_CHECKS) {
notifyWriters();
}
}
{noformat}
it would be convenient for testing to set ROWS_BETWEEN_CHECKS to a low value so
that we can generate multiple stripes with very little data.
Currently the only way to do this is to create a new MemoryManager that
overrides this method and install it via OrcFile.WriterOptions but this only
works when you have control over creating the Writer.
There is no way to do this via some set of config params to make Hive query for
example, create multiple stripes with little data.
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