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Posted to notifications@shardingsphere.apache.org by GitBox <gi...@apache.org> on 2022/04/11 09:34:22 UTC
[GitHub] [shardingsphere] sandynz opened a new issue, #16730: Cleanup replication slot for MogDB failed when scaling job is almost completed
sandynz opened a new issue, #16730:
URL: https://github.com/apache/shardingsphere/issues/16730
## Bug Report
### Which version of ShardingSphere did you use?
master branch, commit 2a144cc4716c0601989b4bba6ae2f1225e09d7aa
### Which project did you use? ShardingSphere-JDBC or ShardingSphere-Proxy?
ShardingSphere-Proxy, backend database is MogDB (based on openGauss)
### Expected behavior
Replication slot could be removed.
It need to support cleanup replication slot in proxy cluster.
### Actual behavior
Exception thrown:
```
[WARN ] 2022-04-11 15:10:55.162 [_finished_check_Worker-1] o.a.s.d.p.s.r.RuleAlteredJobPreparer - Scaling job destroying failed
org.opengauss.util.PSQLException: [127.0.0.1:55477/127.0.0.1:15432] ERROR: replication slot "sharding_scaling_scaling_ds_0" is already active
at org.opengauss.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2820)
at org.opengauss.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:2550)
at org.opengauss.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:329)
at org.opengauss.jdbc.PgStatement.executeInternal(PgStatement.java:453)
at org.opengauss.jdbc.PgStatement.execute(PgStatement.java:377)
at org.opengauss.jdbc.PgPreparedStatement.executeWithFlags(PgPreparedStatement.java:149)
at org.opengauss.jdbc.PgCallableStatement.executeWithFlags(PgCallableStatement.java:79)
at org.opengauss.jdbc.PgPreparedStatement.execute(PgPreparedStatement.java:138)
at com.zaxxer.hikari.pool.ProxyPreparedStatement.execute(ProxyPreparedStatement.java:44)
at com.zaxxer.hikari.pool.HikariProxyCallableStatement.execute(HikariProxyCallableStatement.java)
at org.apache.shardingsphere.data.pipeline.opengauss.ingest.wal.OpenGaussLogicalReplication.dropSlot(OpenGaussLogicalReplication.java:107)
at org.apache.shardingsphere.data.pipeline.opengauss.ingest.OpenGaussPositionInitializer.destroy(OpenGaussPositionInitializer.java:60)
at org.apache.shardingsphere.data.pipeline.scenario.rulealtered.RuleAlteredJobPreparer.cleanup(RuleAlteredJobPreparer.java:162)
at org.apache.shardingsphere.data.pipeline.core.api.impl.RuleAlteredJobAPIImpl.switchClusterConfiguration(RuleAlteredJobAPIImpl.java:373)
at org.apache.shardingsphere.data.pipeline.core.job.FinishedCheckJob.switchClusterConfiguration(FinishedCheckJob.java:126)
at org.apache.shardingsphere.data.pipeline.core.job.FinishedCheckJob.execute(FinishedCheckJob.java:86)
```
### Reason analyze (If you can)
`RuleAlteredJobAPIImpl.switchClusterConfiguration` doesn't perform accurately:
```
// TODO clean up should be done after the task is complete.
try {
TimeUnit.SECONDS.sleep(1);
} catch (final InterruptedException ex) {
log.error(ex.getMessage());
}
```
### Steps to reproduce the behavior, such as: SQL to execute, sharding rule configuration, when exception occur etc.
### Example codes for reproduce this issue (such as a github link).
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[GitHub] [shardingsphere] tristaZero closed issue #16730: Cleanup replication slot for MogDB failed when scaling job is almost completed
Posted by GitBox <gi...@apache.org>.
tristaZero closed issue #16730: Cleanup replication slot for MogDB failed when scaling job is almost completed
URL: https://github.com/apache/shardingsphere/issues/16730
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