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rocksdb/db/db_impl
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Cheng Chang ee50b8d499 Be able to decrease background thread's CPU priority when creating database backup (#6602) 
Summary:
When creating a database backup, the background threads will not only consume IO resources by copying files, but also consuming CPU such as by computing checksums. During peak times, the CPU consumption by the background threads might affect online queries.

This PR makes it possible to decrease CPU priority of these threads when creating a new backup.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/6602

Test Plan: make check

Reviewed By: siying, zhichao-cao

Differential Revision: D20683216

Pulled By: cheng-chang

fbshipit-source-id: 9978b9ed9488e8ce135e90ca083e5b4b7221fd84
2020-03-28 19:07:25 -07:00
..
db_impl_compaction_flush.cc Be able to decrease background thread's CPU priority when creating database backup (#6602) 2020-03-28 19:07:25 -07:00
db_impl_debug.cc Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
db_impl_experimental.cc Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
db_impl_files.cc Attempt to recover from db with missing table files (#6334) 2020-03-20 19:30:48 -07:00
db_impl_open.cc Pass IOStatus to write path and set retryable IO Error as hard error in BG jobs (#6487) 2020-03-27 16:04:43 -07:00
db_impl_readonly.cc return timestamp from get (#6409) 2020-03-02 16:01:00 -08:00
db_impl_readonly.h Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
db_impl_secondary.cc return timestamp from get (#6409) 2020-03-02 16:01:00 -08:00
db_impl_secondary.h Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
db_impl_write.cc Pass IOStatus to write path and set retryable IO Error as hard error in BG jobs (#6487) 2020-03-27 16:04:43 -07:00
db_impl.cc Be able to decrease background thread's CPU priority when creating database backup (#6602) 2020-03-28 19:07:25 -07:00
db_impl.h Pass IOStatus to write path and set retryable IO Error as hard error in BG jobs (#6487) 2020-03-27 16:04:43 -07:00
db_secondary_test.cc Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00