fork of https://github.com/oxigraph/rocksdb and https://github.com/facebook/rocksdb for nextgraph and oxigraph

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Zhichao Cao a10f12eda1 Auto resume the DB from Retryable IO Error (#6765) ... Summary: In current codebase, in write path, if Retryable IO Error happens, SetBGError is called. The retryable IO Error is converted to hard error and DB is in read only mode. User or application needs to resume it. In this PR, if Retryable IO Error happens in one DB, SetBGError will create a new thread to call Resume (auto resume). otpions.max_bgerror_resume_count controls if auto resume is enabled or not (if max_bgerror_resume_count<=0, auto resume will not be enabled). options.bgerror_resume_retry_interval controls the time interval to call Resume again if the previous resume fails due to the Retryable IO Error. If non-retryable error happens during resume, auto resume will terminate. Pull Request resolved: https://github.com/facebook/rocksdb/pull/6765 Test Plan: Added the unit test cases in error_handler_fs_test and pass make asan_check Reviewed By: anand1976 Differential Revision: D21916789 Pulled By: zhichao-cao fbshipit-source-id: acb8b5e5dc3167adfa9425a5b7fc104f6b95cb0b		4 years ago
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rocksdb	Auto resume the DB from Retryable IO Error (#6765)	4 years ago