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| author | Matthew Oliver <matt@oliver.net.au> | 2022-02-10 13:42:48 +1100 |
|---|---|---|
| committer | Matthew Oliver <matt@oliver.net.au> | 2022-07-21 13:35:24 +1000 |
| commit | bf4edefce4990a9c8c3f6a92696af37d840d2008 (patch) | |
| tree | f9ebacd4cfb350dab7836a3c7a76bb6e0906ac85 /doc | |
| parent | 57f17ace7c911b80587a03634346478b6ca432e8 (diff) | |
| download | swift-bf4edefce4990a9c8c3f6a92696af37d840d2008.tar.gz | |
DB Replicator: Add handoff_delete option
Currently the object-replicator has an option called `handoff_delete`
which allows us to define the the number of replicas which are ensured
in swift. Once a handoff node ensures that many successful responses it
can go ahead and delete the handoff partition.
By default it's 'auto' or rather the number of primary nodes. But this
can be reduced. It's useful in draining full disks, but has to be used
carefully.
This patch adds the same option to the DB replicator and works the same
way. But instead of deleting a partition it's done at the per DB level.
Because it's done in the DB Replicator level it means the option is now
available to both the Account and Container replicators.
Change-Id: Ide739a6d805bda20071c7977f5083574a5345a33
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/source/config/account_server_config.rst | 25 | ||||
| -rw-r--r-- | doc/source/config/container_server_config.rst | 25 |
2 files changed, 44 insertions, 6 deletions
diff --git a/doc/source/config/account_server_config.rst b/doc/source/config/account_server_config.rst index 241c3e9d6..f305c021b 100644 --- a/doc/source/config/account_server_config.rst +++ b/doc/source/config/account_server_config.rst @@ -170,9 +170,9 @@ ionice_priority None I/O scheduling priority of server [account-replicator] ******************** -==================== ========================= =============================== +==================== ========================= ===================================== Option Default Description --------------------- ------------------------- ------------------------------- +-------------------- ------------------------- ------------------------------------- log_name account-replicator Label used when logging log_facility LOG_LOCAL0 Syslog log facility log_level INFO Logging level @@ -256,7 +256,26 @@ ionice_priority None I/O scheduling priority of serve Work only with ionice_class. Ignored if IOPRIO_CLASS_IDLE is set. -==================== ========================= =============================== +handoffs_only no When handoffs_only mode is enabled + the replicator will *only* replicate + from handoff nodes to primary nodes + and will not sync primary nodes + with other primary nodes. +handoff_delete auto the number of replicas which are + ensured in swift. If the number + less than the number of replicas + is set, account-replicator + could delete local handoffs even + if all replicas are not ensured in + the cluster. The replicator would + remove local handoff account database + after syncing when the number of + successful responses is greater than + or equal to this number. By default + handoff partitions will be removed + when it has successfully replicated + to all the canonical nodes. +==================== ========================= ===================================== ***************** [account-auditor] diff --git a/doc/source/config/container_server_config.rst b/doc/source/config/container_server_config.rst index 7961f50e8..6f7d6031a 100644 --- a/doc/source/config/container_server_config.rst +++ b/doc/source/config/container_server_config.rst @@ -175,9 +175,9 @@ ionice_priority None I/O scheduling priority of ser [container-replicator] ********************** -==================== =========================== ============================= +==================== =========================== ======================================= Option Default Description --------------------- --------------------------- ----------------------------- +-------------------- --------------------------- --------------------------------------- log_name container-replicator Label used when logging log_facility LOG_LOCAL0 Syslog log facility log_level INFO Logging level @@ -266,7 +266,26 @@ ionice_priority None I/O scheduling priority of Work only with ionice_class. Ignored if IOPRIO_CLASS_IDLE is set. -==================== =========================== ============================= +handoffs_only no When handoffs_only mode is enabled + the replicator will *only* replicate + from handoff nodes to primary nodes + and will not sync primary nodes + with other primary nodes. +handoff_delete auto the number of replicas which are + ensured in swift. If the number + less than the number of replicas + is set, container-replicator + could delete local handoffs even + if all replicas are not ensured in + the cluster. The replicator would + remove local handoff container database + after syncing when the number of + successful responses is greater than + or equal to this number. By default + handoff partitions will be removed + when it has successfully replicated + to all the canonical nodes. +==================== =========================== ======================================= ******************* [container-sharder] |