Use non blocking secure random for seeding. (#106)
When attempting to generate bulk data to ingest, map reduce jobs were
timing out. The jobs were blocked in SecureRandom code for over 10
minutes (likely trying to read /dev/random, but not sure about this).
This change creates a SecureRandom that should be non-blocking
with Java's default configs. With this change generating bulk data no
longer times out.
diff --git a/src/main/java/org/apache/accumulo/testing/continuous/ContinuousInputFormat.java b/src/main/java/org/apache/accumulo/testing/continuous/ContinuousInputFormat.java
index 4399e3f..ecf8172 100644
--- a/src/main/java/org/apache/accumulo/testing/continuous/ContinuousInputFormat.java
+++ b/src/main/java/org/apache/accumulo/testing/continuous/ContinuousInputFormat.java
@@ -25,7 +25,6 @@
import java.io.DataOutput;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
-import java.security.NoSuchAlgorithmException;
import java.security.SecureRandom;
import java.util.ArrayList;
import java.util.List;
@@ -130,12 +129,8 @@
maxQual = job.getConfiguration().getInt(PROP_QUAL_MAX, Short.MAX_VALUE);
checksum = job.getConfiguration().getBoolean(PROP_CHECKSUM, false);
- try {
- random = new Random(SecureRandom.getInstanceStrong().nextLong());
- } catch (NoSuchAlgorithmException e) {
- throw new AssertionError(
- "Seeding random from a strong secure random algorithm should never fail", e);
- }
+ random = new Random(new SecureRandom().nextLong());
+
nodeCount = 0;
}
