yugabyte/yugabyte-db
Voir sur GitHub[DocDB] Add flag for configuring rocksdb bytes_per_sync option
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#10 822 ouverte le 9 déc. 2021
area/docdbgood first issuekind/enhancementpriority/medium
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Description
Jira Link: DB-590
Description
// Allows OS to incrementally sync files to disk while they are being
// written, in the background. Issue one request for every bytes_per_sync
// written. 0 turns it off.
// Default: 0
uint64_t bytes_per_sync = 0;
DBOptions SanitizeOptions(const std::string& dbname, const DBOptions& src) {
...
if (result.rate_limiter.get() != nullptr) {
if (result.bytes_per_sync == 0) {
result.bytes_per_sync = 1024 * 1024;
}
}
...
Currently, we don't set bytes_per_sync explicitly, but we use a rate limiter, so it leads to sync every 1MB (independently for each file) at rocksdb level.