Red Hat SummitChapter 22. Flusher
The filestore flusher forces data from large writes to be written out using sync file range before the sync in order to (hopefully) reduce the cost of the eventual sync. In practice, disabling filestore flusher seems to improve performance in some cases.
filestore_flusher
- Description
- Enables the filestore flusher.
- Type
- Boolean
- Required
- No
- Default
-
false
filestore_flusher_max_fds
- Description
- Sets the maximum number of file descriptors for the flusher.
- Type
- Integer
- Required
- No
- Default
-
512
filestore_sync_flush
- Description
- Enables the synchronization flusher.
- Type
- Boolean
- Required
- No
- Default
-
false
filestore_fsync_flushes_journal_data
- Description
- Flush journal data during filesystem synchronization.
- Type
- Boolean
- Required
- No
- Default
-
false
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