Xiao Li created SPARK-16222:
-------------------------------
Summary: JDBC Sources: Handling illegal input values for
`fetchsize` and `batchsize`
Key: SPARK-16222
URL: https://issues.apache.org/jira/browse/SPARK-16222
Project: Spark
Issue Type: Bug
Components: SQL
Affects Versions: 2.0.0
Reporter: Xiao Li
For JDBC data sources, users can specify `batchsize` for multi-row inserts and
`fetchsize` for multi-row fetch. A few issues exist:
- The property keys are case sensitive. Thus, the existing test cases for
`fetchsize` use incorrect names. Basically, the test cases are broken.
- No test cases exist for `batchsize`.
- We do not detect the illegal input values for `fetchsize` and `batchsize`.
For example, when `batchsize` is zero, we got the following exception:
```
Job aborted due to stage failure: Task 0 in stage 0.0 failed 1 times, most
recent failure: Lost task 0.0 in stage 0.0 (TID 0, localhost):
java.lang.ArithmeticException: / by zero
```
when `fetchsize` is less than zero, we got the exception from the underlying
JDBC driver:
```
Job aborted due to stage failure: Task 0 in stage 0.0 failed 1 times, most
recent failure: Lost task 0.0 in stage 0.0 (TID 0, localhost):
org.h2.jdbc.JdbcSQLException: Invalid value "-1" for parameter "rows"
[90008-183]
```
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
