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https://issues.apache.org/jira/browse/IOTDB-366?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Jialin Qiao closed IOTDB-366.
-----------------------------
Resolution: Fixed
> Concurrent Error when multiple JDBC client send queries
> -------------------------------------------------------
>
> Key: IOTDB-366
> URL: https://issues.apache.org/jira/browse/IOTDB-366
> Project: Apache IoTDB
> Issue Type: Bug
> Affects Versions: 0.10.0-SNAPSHOT
> Reporter: Xiangdong Huang
> Priority: Major
>
> HI,
> After the SQL parser is upgraded to Antlr4, seems a concurrent error is
> introduce.
> The error can be reproduced by:
> In org.apache.iotdb.db.integration.IoTDBQueryDemoIT class, add a new test
> function:
> {code:java}
> // code placeholder
> @Test
> public void testConcurrent() {
> new Thread(new Runnable() {
> @Override
> public void run() {
> try {
> selectTest();
> } catch (Exception e) {
> e.printStackTrace();
> }
> }
> }).start();
> new Thread(new Runnable() {
> @Override
> public void run() {
> try {
> selectTest();
> } catch (Exception e) {
> e.printStackTrace();
> }
> }
> }).start();
> }
> {code}
>
> Notice, because it is a concurrent error, the issue is not reproduced every
> time.
> And, the exceptions in the above test function can not be caught by Junit,
> so it is not a formal UT code.
>
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