diff --git a/src/main/java/cloudgene/mapred/api/v2/admin/ArchiveJob.java b/src/main/java/cloudgene/mapred/api/v2/admin/ArchiveJob.java
index 02f76320..e97c6f30 100644
--- a/src/main/java/cloudgene/mapred/api/v2/admin/ArchiveJob.java
+++ b/src/main/java/cloudgene/mapred/api/v2/admin/ArchiveJob.java
@@ -83,9 +83,6 @@ public Representation get() {
 				job.setState(AbstractJob.STATE_RETIRED);
 				dao.update(job);
 
-				ParameterDao parameterDao = new ParameterDao(getDatabase());
-				parameterDao.deleteAllByJob(job);
-
 				if (externalWorkspace != null) {
 					try {
 						externalWorkspace.delete(job.getId());
diff --git a/src/main/java/cloudgene/mapred/api/v2/jobs/GetJobDetails.java b/src/main/java/cloudgene/mapred/api/v2/jobs/GetJobDetails.java
index 520ec3bb..da456e1b 100644
--- a/src/main/java/cloudgene/mapred/api/v2/jobs/GetJobDetails.java
+++ b/src/main/java/cloudgene/mapred/api/v2/jobs/GetJobDetails.java
@@ -149,9 +149,6 @@ public Representation deleteJob(Representation entity) {
 		job.setState(AbstractJob.STATE_DELETED);
 		dao.update(job);
 
-		ParameterDao parameterDao = new ParameterDao(getDatabase());
-		parameterDao.deleteAllByJob(job);
-
 		Settings settings = getSettings();
 
 		IExternalWorkspace externalWorkspace = null;
diff --git a/src/main/java/cloudgene/mapred/cron/CleanUpTasks.java b/src/main/java/cloudgene/mapred/cron/CleanUpTasks.java
index f3cb97e3..cdc10cf2 100644
--- a/src/main/java/cloudgene/mapred/cron/CleanUpTasks.java
+++ b/src/main/java/cloudgene/mapred/cron/CleanUpTasks.java
@@ -26,8 +26,6 @@ public class CleanUpTasks {
 	public static int executeRetire(Database database, Settings settings) {
 		JobDao dao = new JobDao(database);
 
-		ParameterDao parameterDao = new ParameterDao(database);
-
 		List<AbstractJob> oldJobs = dao.findAllNotifiedJobs();
 
 		int deleted = 0;
@@ -57,8 +55,6 @@ public static int executeRetire(Database database, Settings settings) {
 				dao.update(job);
 
 
-				parameterDao.deleteAllByJob(job);
-
 				log.info("Job " + job.getId() + " retired.");
 				deleted++;
 
diff --git a/src/main/java/cloudgene/mapred/database/ParameterDao.java b/src/main/java/cloudgene/mapred/database/ParameterDao.java
index 6028b8b8..e6251463 100644
--- a/src/main/java/cloudgene/mapred/database/ParameterDao.java
+++ b/src/main/java/cloudgene/mapred/database/ParameterDao.java
@@ -183,29 +183,6 @@ public CloudgeneParameterOutput findById(int id) {
 		}
 	}
 
-    public boolean deleteAllByJob(AbstractJob job) {
-		try {
-
-			StringBuilder sql = new StringBuilder();
-			sql.append("delete ");
-			sql.append("from parameter ");
-			sql.append("where job_id = ?");
-
-			Object[] params = new Object[1];
-			params[0] = job.getId();
-
-			update(sql.toString(), params);
-
-			log.debug("delete all parameters by job_id '" + job.getId() + "' successful.");
-
-			return true;
-
-		} catch (SQLException e) {
-			log.error("delete all parameters by job_id '" + job.getId() + "' failed.", e);
-			return false;
-		}
-    }
-
     class ParameterInputMapper implements IRowMapper {
 
 		@Override