Mingliang Liu created HADOOP-14248: -------------------------------------- Summary: Retire SharedInstanceProfileCredentialsProvider after AWS SDK upgrade Key: HADOOP-14248 URL: https://issues.apache.org/jira/browse/HADOOP-14248 Project: Hadoop Common Issue Type: Sub-task Components: fs/s3 Affects Versions: 3.0.0-alpha3 Reporter: Mingliang Liu Assignee: Mingliang Liu
This is from the discussion in [HADOOP-13050]. So [HADOOP-13727] added the SharedInstanceProfileCredentialsProvider, which effectively reduces high number of connections to EC2 Instance Metadata Service caused by InstanceProfileCredentialsProvider. That patch, in order to prevent the throttling problem, defined new class {{SharedInstanceProfileCredentialsProvider}} as a subclass of {{InstanceProfileCredentialsProvider}}, which enforces creation of only a single instance. Per [HADOOP-13050], we upgraded the AWS Java SDK. Since then, the {{InstanceProfileCredentialsProvider}} in SDK code internally enforces a singleton. That confirms that our effort in [HADOOP-13727] makes 100% sense. Meanwhile, {{SharedInstanceProfileCredentialsProvider}} can retire gracefully in trunk branch. -- This message was sent by Atlassian JIRA (v6.3.15#6346) --------------------------------------------------------------------- To unsubscribe, e-mail: common-dev-unsubscr...@hadoop.apache.org For additional commands, e-mail: common-dev-h...@hadoop.apache.org