leventov commented on a change in pull request #6664: Fix a race in
FileSessionCredentialsProvider
URL: https://github.com/apache/incubator-druid/pull/6664#discussion_r236785184
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File path:
aws-common/src/main/java/org/apache/druid/common/aws/FileSessionCredentialsProvider.java
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@@ -24,27 +24,25 @@
import com.amazonaws.auth.AWSSessionCredentials;
import org.apache.druid.java.util.common.concurrent.Execs;
-import java.io.File;
-import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
+import java.nio.file.Files;
+import java.nio.file.Paths;
import java.util.Properties;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;
public class FileSessionCredentialsProvider implements AWSCredentialsProvider
{
- private final String sessionCredentials;
- private volatile String sessionToken;
- private volatile String accessKey;
- private volatile String secretKey;
+ private final String sessionCredentialsFile;
+ private AWSSessionCredentials awsSessionCredentials;
Review comment:
It doesn't need to be volatile. From JMM point of view, volatile on this
field changes anything and doesn't provide any extra guarantees.
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