Merge pull request #244 from lkiesow/t/mh-12898-download-dist-job-load

MH-12898, Fix download distribution job load defaults

etc/org.opencastproject.distribution.download.DownloadDistributionServiceImpl.cfg

@@ -1,11 +1,10 @@
-#The load on the system introduced by creating a distribute job
-#Each job involves copying the output file to the final output directory which can be expensive depending on file size
-#Since this will fairly quickly add up, these should be relatively expensive, but not cripplingly so
+# The load on the system introduced by creating a distribute job Each job involves copying the output file to the final
+# output directory. If possible, hard-linking is used for this which makes the job less expensive. If hard-linking if
+# not possible, you might want to increase this value.
+# Default: 0.2
+#job.load.download.distribute=0.2
 
-job.load.download.distribute = 1.0
-
-#The load on the system introduced by creating a retract job
-#Each job involves deleting the output file from the final output directory
-#This is a quick and inexpensive operation, so we can run a lot of these in parallel
-
-job.load.download.retract = 0.1
+# The load on the system introduced by creating a retract job. Each job involves deleting the output file from the
+# final output directory. This is a quick and inexpensive operation, so we can run a lot of these in parallel.
+# Default: 0.1
+#job.load.download.retract=0.1

modules/distribution-service-download/src/main/java/org/opencastproject/distribution/download/DownloadDistributionServiceImpl.java

@@ -100,10 +100,10 @@ private enum Operation {
   private static final long TIMEOUT = 60000L;
 
   /** The load on the system introduced by creating a distribute job */
-  public static final float DEFAULT_DISTRIBUTE_JOB_LOAD = 0.1f;
+  public static final float DEFAULT_DISTRIBUTE_JOB_LOAD = 0.2f;
 
   /** The load on the system introduced by creating a retract job */
-  public static final float DEFAULT_RETRACT_JOB_LOAD = 1.0f;
+  public static final float DEFAULT_RETRACT_JOB_LOAD = 0.1f;
 
   /** The key to look for in the service configuration file to override the {@link DEFAULT_DISTRIBUTE_JOB_LOAD} */
   public static final String DISTRIBUTE_JOB_LOAD_KEY = "job.load.download.distribute";