Hello!
I can see how such scenario can expose issues in Apache Ignite's SQL. Can
you please create a JIRA ticket with this code?
Regards,
--
Ilya Kasnacheev
сб, 16 мая 2020 г. в 12:51, yangjiajun <1371549...@qq.com>:
> Hello.Sorry for so late to reply.I have got a reproducer.
>
> Here is the test code.Please run it in a ignite without persistence
> enabled.
>
> public class ConcurrentCreateTable {
> private static Connection conn;
>
> private static Connection conn1;
>
> public static void main(String[] args) throws Exception {
>
> initialize();
> new Thread(new Runnable() {
>
> @Override
> public void run() {
> while (true) {
> try (Statement stmt = conn.createStatement()) {
> stmt.execute(
> "CREATE TABLE IF NOT EXISTS city1(ID
> INTEGER,NAME VARCHAR,NAME1 VARCHAR ,PRIMARY KEY(ID)) WITH
> \"template=replicated\";"
> + "CREATE INDEX IF NOT EXISTS city1_name ON
> city1(NAME);CREATE INDEX IF NOT EXISTS city1_name1 on city1(NAME1);");
> stmt.execute("DROP TABLE IF EXISTS city1");
> System.out.println("XXX");
> } catch (SQLException e) {
>
> e.printStackTrace();
> }
> }
> }
> }).start();
> new Thread(new Runnable() {
>
> @Override
> public void run() {
> while (true) {
> try (Statement stmt = conn1.createStatement()) {
> stmt.execute(
> "CREATE TABLE IF NOT EXISTS city2(ID
> INTEGER,NAME VARCHAR, NAME1 VARCHAR ,PRIMARY KEY(ID)) WITH
> \"template=replicated\";"
> + "CREATE INDEX IF NOT EXISTS city2_name ON
> city2(NAME);CREATE INDEX IF NOT EXISTS city2_name1 on city2(NAME1);");
> stmt.execute("DROP TABLE IF EXISTS city2");
> System.out.println("XXX");
> } catch (SQLException e) {
>
> e.printStackTrace();
> }
> }
> }
> }).start();
> while (true) {
>
> }
> }
>
> private static void initialize() throws Exception {
> Class.forName(Config.IGNITE_DRIVER);
> final Properties props = new Properties();
> conn = DriverManager.getConnection(Config.IGNITE_URL, props);
> conn1 = DriverManager.getConnection(Config.IGNITE_URL, props);
> }
> }
>
> Here is the exception：
> java.sql.SQLException: Schema change operation failed: Thread got
> interrupted while trying to acquire table lock.
> at
>
> org.apache.ignite.internal.jdbc.thin.JdbcThinConnection.sendRequest(JdbcThinConnection.java:901)
> at
>
> org.apache.ignite.internal.jdbc.thin.JdbcThinStatement.execute0(JdbcThinStatement.java:231)
> at
>
> org.apache.ignite.internal.jdbc.thin.JdbcThinStatement.execute(JdbcThinStatement.java:559)
> at
> ....
> at java.lang.Thread.run(Thread.java:748)
>
>
>
> --
> Sent from: http://apache-ignite-users.70518.x6.nabble.com/
>
