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See HADOOP-18091. S3A auditing leaks memory through ThreadLocal references * Adds a new option fs.s3a.audit.enabled to controls whether or not auditing is enabled. This is false by default. * When false, the S3A auditing manager is NoopAuditManagerS3A, which was formerly only used for unit tests and during filsystem initialization. * When true, ActiveAuditManagerS3A is used for managing auditing, allowing auditing events to be reported. * updates documentation and tests. This patch does not fix the underlying leak. When auditing is enabled, long-lived threads will retain references to the audit managers of S3A filesystem instances which have already been closed. Contributed by Steve Loughran. Change-Id: I671e594cd59e8ca77a1f65be791ad0ae9530b8d9 |
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