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https://issues.apache.org/jira/browse/GOBBLIN-1025?focusedWorklogId=378989&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-378989
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ASF GitHub Bot logged work on GOBBLIN-1025:
-------------------------------------------
Author: ASF GitHub Bot
Created on: 29/Jan/20 19:48
Start Date: 29/Jan/20 19:48
Worklog Time Spent: 10m
Work Description: arekusuri commented on pull request #2868:
GOBBLIN-1025: Add retry for PK-Chuking iterator
URL: https://github.com/apache/incubator-gobblin/pull/2868#discussion_r372595268
##########
File path:
gobblin-salesforce/src/main/java/org/apache/gobblin/salesforce/ResultChainingIterator.java
##########
@@ -0,0 +1,71 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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 org.apache.gobblin.salesforce;
+
+import com.google.common.collect.Iterators;
+import com.google.gson.JsonElement;
+import com.sforce.async.BulkConnection;
+import java.util.Iterator;
+import java.util.List;
+import lombok.extern.slf4j.Slf4j;
+
+
+/**
+ * Result Iterator.
Review comment:
fixed, thanks!
> * The Iterator to chain all result iterators together.
> * It is to create only one iterator for a list of result files of BulkAPI.
> * Same time it can also be able to add other iterator with function `add`
to combine to 1 iterator
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Issue Time Tracking
-------------------
Worklog Id: (was: 378989)
Time Spent: 3.5h (was: 3h 20m)
> Add retry for PK-Chunking iterator
> ----------------------------------
>
> Key: GOBBLIN-1025
> URL: https://issues.apache.org/jira/browse/GOBBLIN-1025
> Project: Apache Gobblin
> Issue Type: Improvement
> Reporter: Alex Li
> Priority: Major
> Time Spent: 3.5h
> Remaining Estimate: 0h
>
> In SFDC connector, there is a class called `ResultIterator` (I will change
> the name to SalesforceRecordIterator).
> It was using by only PK-Chunking currently. It encapsulated fetching a list
> of result files to a record iterator.
> However, the csvReader.nextRecord() may throw out network IO exception. We
> should do retry in this case.
> When a result file is fetched partly and one network IO exception happens, we
> are in a special situation - first half of the file is already fetched to our
> local, but another half of the file is still on datasource.
> We need to
> 1. reopen the file stream
> 2. skip all the records that we already fetched, seek the cursor to the
> record which we haven't fetched yet.
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