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Add TXG timestamp database

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This feature enables tracking of when TXGs are committed to disk,
providing an estimated timestamp for each TXG.

With this information, it becomes possible to perform scrubs based
on specific date ranges, improving the granularity of data
management and recovery operations.

Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <alexander.motin@TrueNAS.com>
Reviewed-by: Paul Dagnelie <paul.dagnelie@klarasystems.com>
Signed-off-by: Mariusz Zaborski <mariusz.zaborski@klarasystems.com>
Sponsored-by: Klara, Inc.
Sponsored-by: Wasabi Technology, Inc.
Closes #16853
This commit is contained in:
Mariusz Zaborski
2025-08-06 19:31:21 +02:00
committed by GitHub
parent c3496b5cc6
commit 894edd084e
21 changed files with 736 additions and 10 deletions
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module/zfs/zfs_ioctl.c
+26 -1
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@@ -1704,6 +1704,8 @@ zfs_ioc_pool_scan(zfs_cmd_t *zc)
static const zfs_ioc_key_t zfs_keys_pool_scrub[] = {
{"scan_type", DATA_TYPE_UINT64, 0},
{"scan_command", DATA_TYPE_UINT64, 0},
{"scan_date_start", DATA_TYPE_UINT64, ZK_OPTIONAL},
{"scan_date_end", DATA_TYPE_UINT64, ZK_OPTIONAL},
};
static int
@@ -1712,6 +1714,7 @@ zfs_ioc_pool_scrub(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl)
spa_t *spa;
int error;
uint64_t scan_type, scan_cmd;
uint64_t date_start, date_end;
if (nvlist_lookup_uint64(innvl, "scan_type", &scan_type) != 0)
return (SET_ERROR(EINVAL));
@@ -1721,6 +1724,11 @@ zfs_ioc_pool_scrub(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl)
if (scan_cmd >= POOL_SCRUB_FLAGS_END)
return (SET_ERROR(EINVAL));
if (nvlist_lookup_uint64(innvl, "scan_date_start", &date_start) != 0)
date_start = 0;
if (nvlist_lookup_uint64(innvl, "scan_date_end", &date_end) != 0)
date_end = 0;
if ((error = spa_open(poolname, &spa, FTAG)) != 0)
return (error);
@@ -1732,7 +1740,24 @@ zfs_ioc_pool_scrub(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl)
error = spa_scan_range(spa, scan_type,
spa_get_last_scrubbed_txg(spa), 0);
} else {
error = spa_scan(spa, scan_type);
uint64_t txg_start, txg_end;
txg_start = txg_end = 0;
if (date_start != 0 || date_end != 0) {
mutex_enter(&spa->spa_txg_log_time_lock);
if (date_start != 0) {
txg_start = dbrrd_query(&spa->spa_txg_log_time,
date_start, DBRRD_FLOOR);
}
if (date_end != 0) {
txg_end = dbrrd_query(&spa->spa_txg_log_time,
date_end, DBRRD_CEILING);
}
mutex_exit(&spa->spa_txg_log_time_lock);
}
error = spa_scan_range(spa, scan_type, txg_start, txg_end);
}
spa_close(spa, FTAG);