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From "godfrey he (Jira)" <j...@apache.org>
Subject [jira] [Created] (FLINK-15669) SQL client can't cancel flink job
Date Sun, 19 Jan 2020 11:37:00 GMT
godfrey he created FLINK-15669:
----------------------------------

             Summary: SQL client can't cancel flink job
                 Key: FLINK-15669
                 URL: https://issues.apache.org/jira/browse/FLINK-15669
             Project: Flink
          Issue Type: Bug
          Components: Table SQL / Client
    Affects Versions: 1.10.0
            Reporter: godfrey he
             Fix For: 1.10.0


in sql client, CLI client do cancel query through {{void cancelQuery(String sessionId, String
resultId)}} method in {{Executor}}. However, the {{resultId}} is a random UUID, is not the
job id. So CLI client can't cancel a running job.


{code:java}
	private <C> ResultDescriptor executeQueryInternal(String sessionId, ExecutionContext<C>
context, String query) {
		......

		// store the result with a unique id
		final String resultId = UUID.randomUUID().toString();
		resultStore.storeResult(resultId, result);

	       ......

		// create execution
		final ProgramDeployer deployer = new ProgramDeployer(
				configuration, jobName, pipeline);

		// start result retrieval
		result.startRetrieval(deployer);

		return new ResultDescriptor(
				resultId,
				removeTimeAttributes(table.getSchema()),
				result.isMaterialized());
	}

private <T> void cancelQueryInternal(ExecutionContext<T> context, String resultId)
{
		......

		// stop Flink job
		try (final ClusterDescriptor<T> clusterDescriptor = context.createClusterDescriptor())
{
			ClusterClient<T> clusterClient = null;
			try {
				// retrieve existing cluster
				clusterClient = clusterDescriptor.retrieve(context.getClusterId()).getClusterClient();
				try {
					clusterClient.cancel(new JobID(StringUtils.hexStringToByte(resultId))).get();
				} catch (Throwable t) {
					// the job might has finished earlier
				}
			} catch (Exception e) {
				throw new SqlExecutionException("Could not retrieve or create a cluster.", e);
			} finally {
				try {
					if (clusterClient != null) {
						clusterClient.close();
					}
				} catch (Exception e) {
					// ignore
				}
			}
		} catch (SqlExecutionException e) {
			throw e;
		} catch (Exception e) {
			throw new SqlExecutionException("Could not locate a cluster.", e);
		}
	}
{code}







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