diff --git a/be/src/runtime/runtime_state.h b/be/src/runtime/runtime_state.h
index c63886d5ea8684..ceba0b4cc3f021 100644
--- a/be/src/runtime/runtime_state.h
+++ b/be/src/runtime/runtime_state.h
@@ -584,7 +584,7 @@ class RuntimeState {
 
 #define RETURN_IF_CANCELLED(state) \
   do { \
-    if (UNLIKELY((state)->is_cancelled())) return Status(TStatusCode::CANCELLED); \
+    if (UNLIKELY((state)->is_cancelled())) return Status::CANCELLED; \
   } while (false)
 
 }
diff --git a/docs/user_guide/sql_reference.md b/docs/user_guide/sql_reference.md
index 8577b0076fa008..175e0c1887a912 100644
--- a/docs/user_guide/sql_reference.md
+++ b/docs/user_guide/sql_reference.md
@@ -1223,7 +1223,7 @@ load_label是当前导入批次的标签，由用户指定，需要保证在一
 
 -	file_path，broker中的文件路径，可以指定到一个文件，也可以用/*通配符指定某个目录下的所有文件。
 
--	NEGATIVE：如果指定此参数，则相当于导入一批“负”数据。用于抵消之前导入的同一批数据。该参数仅适用于存在value列，并且value列的聚合类型为SUM的情况。
+-	NEGATIVE：如果指定此参数，则相当于导入一批“负”数据。用于抵消之前导入的同一批数据。该参数仅适用于存在value列，并且value列的聚合类型为SUM的情况。不支持Broker方式导入
 
 -	PARTITION：如果指定此参数，则只会导入指定的分区，导入分区以外的数据会被过滤掉。如果不指定，默认导入table的所有分区。
 
@@ -1291,9 +1291,9 @@ load_label是当前导入批次的标签，由用户指定，需要保证在一
 
 -	max_filter_ratio：最大容忍可过滤（数据不规范等原因）的数据比例。默认零容忍。
 
--	load_delete_flag：指定该导入是否通过导入key列的方式删除数据，仅适用于UNIQUE KEY，导入时可不指定value列。默认为false 
-
+-	load_delete_flag：指定该导入是否通过导入key列的方式删除数据，仅适用于UNIQUE KEY，导入时可不指定value列。默认为false (不支持Broker方式导入)
 
+-	exe_mem_limit：在Broker Load方式时生效，指定导入执行时，后端可使用的最大内存。
 
 举例：
 
diff --git a/fe/src/com/baidu/palo/analysis/LoadStmt.java b/fe/src/com/baidu/palo/analysis/LoadStmt.java
index 2e5781a92d803f..8f1e3556bb3355 100644
--- a/fe/src/com/baidu/palo/analysis/LoadStmt.java
+++ b/fe/src/com/baidu/palo/analysis/LoadStmt.java
@@ -62,6 +62,7 @@ public class LoadStmt extends DdlStmt {
     public static final String TIMEOUT_PROPERTY = "timeout";
     public static final String MAX_FILTER_RATIO_PROPERTY = "max_filter_ratio";
     public static final String LOAD_DELETE_FLAG_PROPERTY = "load_delete_flag";
+    public static final String EXEC_MEM_LIMIT = "exec_mem_limit";
     public static final String CLUSTER_PROPERTY = "cluster";
 
     // for load data from Baidu Object Store(BOS)
@@ -127,6 +128,7 @@ public static void checkProperties(Map<String, String> properties) throws DdlExc
         propertySet.add(LoadStmt.TIMEOUT_PROPERTY);
         propertySet.add(LoadStmt.MAX_FILTER_RATIO_PROPERTY);
         propertySet.add(LoadStmt.LOAD_DELETE_FLAG_PROPERTY);
+        propertySet.add(LoadStmt.EXEC_MEM_LIMIT);
         propertySet.add(LoadStmt.CLUSTER_PROPERTY);
 
         for (Entry<String, String> entry : properties.entrySet()) {
diff --git a/fe/src/com/baidu/palo/common/FeConstants.java b/fe/src/com/baidu/palo/common/FeConstants.java
index 1f36e71137ab01..a1bc669776c7c4 100644
--- a/fe/src/com/baidu/palo/common/FeConstants.java
+++ b/fe/src/com/baidu/palo/common/FeConstants.java
@@ -38,5 +38,5 @@ public class FeConstants {
 
     // general model
     // Current meta data version. Use this version to write journals and image
-    public static int meta_version = FeMetaVersion.VERSION_33;
+    public static int meta_version = FeMetaVersion.VERSION_34;
 }
diff --git a/fe/src/com/baidu/palo/common/FeMetaVersion.java b/fe/src/com/baidu/palo/common/FeMetaVersion.java
index c52603475849d3..19379133b859a0 100644
--- a/fe/src/com/baidu/palo/common/FeMetaVersion.java
+++ b/fe/src/com/baidu/palo/common/FeMetaVersion.java
@@ -65,4 +65,7 @@ public final class FeMetaVersion {
 
     // persist decommission type
     public static final int VERSION_33 = 33;
+
+    // persist LoadJob's execMemLimit
+    public static final int VERSION_34 = 34;
 }
diff --git a/fe/src/com/baidu/palo/load/Load.java b/fe/src/com/baidu/palo/load/Load.java
index 21a01f6100817f..ce606943330b9e 100644
--- a/fe/src/com/baidu/palo/load/Load.java
+++ b/fe/src/com/baidu/palo/load/Load.java
@@ -428,9 +428,11 @@ private LoadJob createLoadJob(LoadStmt stmt, EtlJobType etlJobType,
         job.setDbId(db.getId());
         job.setTimestamp(timestamp);
         job.setBrokerDesc(stmt.getBrokerDesc());
+
         // resource info
         if (ConnectContext.get() != null) {
             job.setResourceInfo(ConnectContext.get().toResourceCtx());
+            job.setExecMemLimit(ConnectContext.get().getSessionVariable().getMaxExecMemByte());
         }
 
         // job properties
@@ -459,6 +461,14 @@ private LoadJob createLoadJob(LoadStmt stmt, EtlJobType etlJobType,
                     throw new DdlException("Value of delete flag is invalid");
                 }
             }
+
+            if (properties.containsKey(LoadStmt.EXEC_MEM_LIMIT)) {
+                try {
+                    job.setExecMemLimit(Long.parseLong(properties.get(LoadStmt.EXEC_MEM_LIMIT)));
+                } catch (NumberFormatException e) {
+                    throw new DdlException("Execute memory limit is not Long", e);
+                }
+            }
         }
 
         // job table load info
diff --git a/fe/src/com/baidu/palo/load/LoadJob.java b/fe/src/com/baidu/palo/load/LoadJob.java
index 665bbb31a36955..da5dafd68136da 100644
--- a/fe/src/com/baidu/palo/load/LoadJob.java
+++ b/fe/src/com/baidu/palo/load/LoadJob.java
@@ -62,7 +62,8 @@ public enum EtlJobType {
 
     private static final int DEFAULT_TIMEOUT_S = 0;
     private static final double DEFAULT_MAX_FILTER_RATIO = 0;
-    
+    private static final long DEFAULT_EXEC_MEM_LIMIT = 2147483648L; // 2GB
+
     private long id;
     private long dbId;
     private String label;
@@ -103,6 +104,8 @@ public enum EtlJobType {
     
     private TPriority priority;
 
+    private long execMemLimit;
+
     public LoadJob() {
         this("");
     }
@@ -137,6 +140,7 @@ public LoadJob(String label, int timeoutSecond, double maxFilterRatio) {
         this.replicaPersistInfos = Maps.newHashMap();
         this.resourceInfo = null;
         this.priority = TPriority.NORMAL;
+        this.execMemLimit = DEFAULT_EXEC_MEM_LIMIT;
     }
     
     public long getId() {
@@ -275,6 +279,10 @@ public PullLoadSourceInfo getPullLoadSourceInfo() {
         return pullLoadSourceInfo;
     }
 
+    public void setExecMemLimit(long execMemLimit) { this.execMemLimit = execMemLimit; }
+
+    public long getExecMemLimit() { return execMemLimit; }
+
     public void setEtlJobType(EtlJobType etlJobType) {
         this.etlJobType = etlJobType;
         switch (etlJobType) {
@@ -605,6 +613,8 @@ public void write(DataOutput out) throws IOException {
             out.writeBoolean(true);
             pullLoadSourceInfo.write(out);
         }
+
+        out.writeLong(execMemLimit);
     }
 
     public void readFields(DataInput in) throws IOException {
@@ -713,6 +723,10 @@ public void readFields(DataInput in) throws IOException {
                 this.pullLoadSourceInfo = PullLoadSourceInfo.read(in);
             }
         }
+
+        if (version >= FeMetaVersion.VERSION_34) {
+            this.execMemLimit = in.readLong();
+        }
     }
     
     @Override
diff --git a/fe/src/com/baidu/palo/qe/Coordinator.java b/fe/src/com/baidu/palo/qe/Coordinator.java
index 08dd031d272315..9c41e10508830a 100644
--- a/fe/src/com/baidu/palo/qe/Coordinator.java
+++ b/fe/src/com/baidu/palo/qe/Coordinator.java
@@ -224,6 +224,14 @@ public String getTrackingUrl() {
         return trackingUrl;
     }
 
+    public void setExecMemoryLimit(long execMemoryLimit) {
+        this.queryOptions.setMem_limit(execMemoryLimit);
+    }
+
+    public void setTimeout(int timeout) {
+        this.queryOptions.setQuery_timeout(timeout);
+    }
+
     // Initiate
     private void prepare() {
         for (PlanFragment fragment : fragments) {
diff --git a/fe/src/com/baidu/palo/task/LoadEtlTask.java b/fe/src/com/baidu/palo/task/LoadEtlTask.java
index 1dbd8b3ba5c59d..10a4a4f312c60a 100644
--- a/fe/src/com/baidu/palo/task/LoadEtlTask.java
+++ b/fe/src/com/baidu/palo/task/LoadEtlTask.java
@@ -1,18 +1,18 @@
-// Copyright (c) 2017, Baidu.com, Inc. All Rights Reserved
-
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//   http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing,
-// software distributed under the License is distributed on an
-// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-// KIND, either express or implied.  See the License for the
-// specific language governing permissions and limitations
-// under the License.
-
+// Copyright (c) 2017, Baidu.com, Inc. All Rights Reserved
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
 package com.baidu.palo.task;
 
 import com.baidu.palo.catalog.Catalog;
@@ -64,6 +64,10 @@ public LoadEtlTask(LoadJob job) {
         this.load = Catalog.getInstance().getLoadInstance();
     }
 
+    protected String getErrorMsg() {
+        return "etl job fail";
+    }
+
     @Override
     protected void exec() {
         // check job state
@@ -117,7 +121,7 @@ private void updateEtlStatus() throws LoadException {
                 processEtlFinished();
                 break;
             case CANCELLED:
-                throw new LoadException("etl job fail");
+                throw new LoadException(getErrorMsg());
             case RUNNING:
                 processEtlRunning();
                 break;
diff --git a/fe/src/com/baidu/palo/task/PullLoadEtlTask.java b/fe/src/com/baidu/palo/task/PullLoadEtlTask.java
index 1c78b5d1c858b1..7948c3b3a0a770 100644
--- a/fe/src/com/baidu/palo/task/PullLoadEtlTask.java
+++ b/fe/src/com/baidu/palo/task/PullLoadEtlTask.java
@@ -35,6 +35,21 @@ public PullLoadEtlTask(LoadJob job) {
         mgr = Catalog.getInstance().getPullLoadJobMgr();
     }
 
+    @Override
+    protected String getErrorMsg() {
+        String errMsg = null;
+        PullLoadJob pullLoadJob = mgr.getJob(job.getId());
+        if (pullLoadJob != null) {
+            PullLoadTask failureTask = pullLoadJob.getFailureTask();
+            if (failureTask != null) {
+                if (failureTask.getExecuteStatus() != null) {
+                    errMsg = "Broker etl failed: " + failureTask.getExecuteStatus().getErrorMsg();
+                }
+            }
+        }
+        return errMsg != null ? errMsg : super.getErrorMsg();
+    }
+
     @Override
     protected boolean updateJobEtlStatus() {
         PullLoadJob pullLoadJob = mgr.getJob(job.getId());
diff --git a/fe/src/com/baidu/palo/task/PullLoadJob.java b/fe/src/com/baidu/palo/task/PullLoadJob.java
index eaeceecbc168fb..9ff77d3f51347c 100644
--- a/fe/src/com/baidu/palo/task/PullLoadJob.java
+++ b/fe/src/com/baidu/palo/task/PullLoadJob.java
@@ -77,6 +77,10 @@ public synchronized void cancel() {
         }
     }
 
+    public PullLoadTask getFailureTask() {
+        return failureTask;
+    }
+
     public synchronized void onTaskFinished(PullLoadTask task) {
         int taskId = task.taskId;
         if (!state.isRunning()) {
diff --git a/fe/src/com/baidu/palo/task/PullLoadPendingTask.java b/fe/src/com/baidu/palo/task/PullLoadPendingTask.java
index f639217fa6bdae..708bba097e5129 100644
--- a/fe/src/com/baidu/palo/task/PullLoadPendingTask.java
+++ b/fe/src/com/baidu/palo/task/PullLoadPendingTask.java
@@ -62,7 +62,7 @@ protected void createEtlRequest() throws Exception {
                 // Generate pull load task, one
                 PullLoadTask task = new PullLoadTask(
                         job.getId(), nextTaskId, db, table,
-                        job.getBrokerDesc(), entry.getValue(), jobDeadlineMs);
+                        job.getBrokerDesc(), entry.getValue(), jobDeadlineMs, job.getExecMemLimit());
                 task.init();
                 pullLoadTaskList.add(task);
                 nextTaskId++;
diff --git a/fe/src/com/baidu/palo/task/PullLoadTask.java b/fe/src/com/baidu/palo/task/PullLoadTask.java
index 7af46df86c6850..e018bbb14eb96d 100644
--- a/fe/src/com/baidu/palo/task/PullLoadTask.java
+++ b/fe/src/com/baidu/palo/task/PullLoadTask.java
@@ -22,6 +22,7 @@
 import com.baidu.palo.common.InternalException;
 import com.baidu.palo.common.Status;
 import com.baidu.palo.load.BrokerFileGroup;
+import com.baidu.palo.load.LoadJob;
 import com.baidu.palo.qe.Coordinator;
 import com.baidu.palo.qe.QeProcessor;
 import com.baidu.palo.thrift.TQueryType;
@@ -55,6 +56,7 @@ public class PullLoadTask {
     private Map<String, Long> fileMap;
     private String trackingUrl;
     private Map<String, String> counters;
+    private final long execMemLimit;
 
     // Runtime variables
     private enum State {
@@ -74,7 +76,7 @@ public PullLoadTask(
             long jobId, int taskId,
             Database db, OlapTable table,
             BrokerDesc brokerDesc, List<BrokerFileGroup> fileGroups,
-            long jobDeadlineMs) {
+            long jobDeadlineMs, long execMemLimit) {
         this.jobId = jobId;
         this.taskId = taskId;
         this.db = db;
@@ -82,6 +84,7 @@ public PullLoadTask(
         this.brokerDesc = brokerDesc;
         this.fileGroups = fileGroups;
         this.jobDeadlineMs = jobDeadlineMs;
+        this.execMemLimit = execMemLimit;
     }
 
     public void init() throws InternalException {
@@ -117,7 +120,7 @@ public synchronized boolean isFinished() {
     }
 
     public Status getExecuteStatus() {
-        return null;
+        return executeStatus;
     }
 
     public synchronized void onCancelled() {
@@ -201,6 +204,7 @@ public void executeOnce() throws InternalException {
             curCoordinator = new Coordinator(executeId, planner.getDescTable(),
                     planner.getFragments(), planner.getScanNodes());
             curCoordinator.setQueryType(TQueryType.LOAD);
+            curCoordinator.setExecMemoryLimit(execMemLimit);
         }
 
         boolean needUnregister = false;