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8087bc72f0
This patch adds basic tablet repair support.
Below is an example showing how tablet repairs works. The `nodetool
repair -pr` cmd was performed on all the nodes, which makes sure no duplication
repair work will be performed and each tablet will be repaired exactly once.
Three nodes in the cluster. RF = 2. 16 initial tablets.
Tablets:
```
cqlsh> SELECT * FROM system.tablets;
keyspace_name | table_id | last_token | table_name | tablet_count | new_replicas | replicas | session | stage
---------------+--------------------------------------+----------------------+------------+--------------+--------------+----------------------------------------------------------------------------------------+---------+-------
ks1 | 3ffadad0-a552-11ee-bc15-66412bbb6978 | -8070450532247928833 | standard1 | 16 | null | [(951cb5bc-5749-481a-9645-4dd0f624f24a, 6), (2dd3808d-6601-4483-b081-adf41ef094e5, 5)] | null | null
ks1 | 3ffadad0-a552-11ee-bc15-66412bbb6978 | -6917529027641081857 | standard1 | 16 | null | [(2dd3808d-6601-4483-b081-adf41ef094e5, 0), (19caaeb3-d754-4704-a998-840df53eb54c, 5)] | null | null
ks1 | 3ffadad0-a552-11ee-bc15-66412bbb6978 | -5764607523034234881 | standard1 | 16 | null | [(19caaeb3-d754-4704-a998-840df53eb54c, 2), (2dd3808d-6601-4483-b081-adf41ef094e5, 3)] | null | null
ks1 | 3ffadad0-a552-11ee-bc15-66412bbb6978 | -4611686018427387905 | standard1 | 16 | null | [(951cb5bc-5749-481a-9645-4dd0f624f24a, 5), (2dd3808d-6601-4483-b081-adf41ef094e5, 4)] | null | null
ks1 | 3ffadad0-a552-11ee-bc15-66412bbb6978 | -3458764513820540929 | standard1 | 16 | null | [(19caaeb3-d754-4704-a998-840df53eb54c, 1), (951cb5bc-5749-481a-9645-4dd0f624f24a, 0)] | null | null
ks1 | 3ffadad0-a552-11ee-bc15-66412bbb6978 | -2305843009213693953 | standard1 | 16 | null | [(951cb5bc-5749-481a-9645-4dd0f624f24a, 7), (2dd3808d-6601-4483-b081-adf41ef094e5, 1)] | null | null
ks1 | 3ffadad0-a552-11ee-bc15-66412bbb6978 | -1152921504606846977 | standard1 | 16 | null | [(19caaeb3-d754-4704-a998-840df53eb54c, 7), (951cb5bc-5749-481a-9645-4dd0f624f24a, 1)] | null | null
ks1 | 3ffadad0-a552-11ee-bc15-66412bbb6978 | -1 | standard1 | 16 | null | [(951cb5bc-5749-481a-9645-4dd0f624f24a, 2), (2dd3808d-6601-4483-b081-adf41ef094e5, 7)] | null | null
ks1 | 3ffadad0-a552-11ee-bc15-66412bbb6978 | 1152921504606846975 | standard1 | 16 | null | [(951cb5bc-5749-481a-9645-4dd0f624f24a, 6), (19caaeb3-d754-4704-a998-840df53eb54c, 2)] | null | null
ks1 | 3ffadad0-a552-11ee-bc15-66412bbb6978 | 2305843009213693951 | standard1 | 16 | null | [(2dd3808d-6601-4483-b081-adf41ef094e5, 5), (951cb5bc-5749-481a-9645-4dd0f624f24a, 7)] | null | null
ks1 | 3ffadad0-a552-11ee-bc15-66412bbb6978 | 3458764513820540927 | standard1 | 16 | null | [(2dd3808d-6601-4483-b081-adf41ef094e5, 1), (19caaeb3-d754-4704-a998-840df53eb54c, 3)] | null | null
ks1 | 3ffadad0-a552-11ee-bc15-66412bbb6978 | 4611686018427387903 | standard1 | 16 | null | [(2dd3808d-6601-4483-b081-adf41ef094e5, 7), (951cb5bc-5749-481a-9645-4dd0f624f24a, 1)] | null | null
ks1 | 3ffadad0-a552-11ee-bc15-66412bbb6978 | 5764607523034234879 | standard1 | 16 | null | [(19caaeb3-d754-4704-a998-840df53eb54c, 6), (2dd3808d-6601-4483-b081-adf41ef094e5, 2)] | null | null
ks1 | 3ffadad0-a552-11ee-bc15-66412bbb6978 | 6917529027641081855 | standard1 | 16 | null | [(19caaeb3-d754-4704-a998-840df53eb54c, 5), (951cb5bc-5749-481a-9645-4dd0f624f24a, 3)] | null | null
ks1 | 3ffadad0-a552-11ee-bc15-66412bbb6978 | 8070450532247928831 | standard1 | 16 | null | [(2dd3808d-6601-4483-b081-adf41ef094e5, 0), (19caaeb3-d754-4704-a998-840df53eb54c, 7)] | null | null
```
node1:
```
$nodetool repair -p 7199 -pr ks1 standard1
[shard 0:strm] repair - repair[f7ac8fb6-8e49-4b31-8c7d-0d493064977c]: starting user-requested repair for keyspace ks1, repair id 6, options {{trace -> false}, {primaryRange -> true}, {columnFamilies -> standard1}, {jobThreads -> 1}, {incremental -> false}, {parallelism -> parallel}}
[shard 0:strm] repair - repair[f7ac8fb6-8e49-4b31-8c7d-0d493064977c] Repair 1 out of 5 tablets: table=ks1.standard1 tablet_id=2 range=(-6917529027641081857,-5764607523034234881] replicas={19caaeb3-d754-4704-a998-840df53eb54c:2, 2dd3808d-6601-4483-b081-adf41ef094e5:3} primary_replica_only=true
[shard 2:strm] repair - repair[f7ac8fb6-8e49-4b31-8c7d-0d493064977c]: stats: repair_reason=repair, keyspace=ks1, tables={standard1}, ranges_nr=1, round_nr=2, round_nr_fast_path_already_synced=2, round_nr_fast_path_same_combined_hashes=0, round_nr_slow_path=0, rpc_call_nr=6, tx_hashes_nr=0, rx_hashes_nr=0, duration=0.07399633 seconds, tx_row_nr=0, rx_row_nr=0, tx_row_bytes=0, rx_row_bytes=0, row_from_disk_bytes={{127.0.0.1, 7174440}, {127.0.0.2, 7174440}}, row_from_disk_nr={{127.0.0.1, 15330}, {127.0.0.2, 15330}}, row_from_disk_bytes_per_sec={{127.0.0.1, 92.4651}, {127.0.0.2, 92.4651}} MiB/s, row_from_disk_rows_per_sec={{127.0.0.1, 207172}, {127.0.0.2, 207172}} Rows/s, tx_row_nr_peer={}, rx_row_nr_peer={}
[shard 0:strm] repair - repair[f7ac8fb6-8e49-4b31-8c7d-0d493064977c] Repair 2 out of 5 tablets: table=ks1.standard1 tablet_id=4 range=(-4611686018427387905,-3458764513820540929] replicas={19caaeb3-d754-4704-a998-840df53eb54c:1, 951cb5bc-5749-481a-9645-4dd0f624f24a:0} primary_replica_only=true
[shard 1:strm] repair - repair[f7ac8fb6-8e49-4b31-8c7d-0d493064977c]: stats: repair_reason=repair, keyspace=ks1, tables={standard1}, ranges_nr=1, round_nr=2, round_nr_fast_path_already_synced=2, round_nr_fast_path_same_combined_hashes=0, round_nr_slow_path=0, rpc_call_nr=6, tx_hashes_nr=0, rx_hashes_nr=0, duration=0.07302664 seconds, tx_row_nr=0, rx_row_nr=0, tx_row_bytes=0, rx_row_bytes=0, row_from_disk_bytes={{127.0.0.1, 7195032}, {127.0.0.3, 7195032}}, row_from_disk_nr={{127.0.0.1, 15374}, {127.0.0.3, 15374}}, row_from_disk_bytes_per_sec={{127.0.0.1, 93.9618}, {127.0.0.3, 93.9618}} MiB/s, row_from_disk_rows_per_sec={{127.0.0.1, 210526}, {127.0.0.3, 210526}} Rows/s, tx_row_nr_peer={}, rx_row_nr_peer={}
[shard 0:strm] repair - repair[f7ac8fb6-8e49-4b31-8c7d-0d493064977c] Repair 3 out of 5 tablets: table=ks1.standard1 tablet_id=6 range=(-2305843009213693953,-1152921504606846977] replicas={19caaeb3-d754-4704-a998-840df53eb54c:7, 951cb5bc-5749-481a-9645-4dd0f624f24a:1} primary_replica_only=true
[shard 7:strm] repair - repair[f7ac8fb6-8e49-4b31-8c7d-0d493064977c]: stats: repair_reason=repair, keyspace=ks1, tables={standard1}, ranges_nr=1, round_nr=2, round_nr_fast_path_already_synced=2, round_nr_fast_path_same_combined_hashes=0, round_nr_slow_path=0, rpc_call_nr=6, tx_hashes_nr=0, rx_hashes_nr=0, duration=0.06781354 seconds, tx_row_nr=0, rx_row_nr=0, tx_row_bytes=0, rx_row_bytes=0, row_from_disk_bytes={{127.0.0.1, 7095816}, {127.0.0.3, 7095816}}, row_from_disk_nr={{127.0.0.1, 15162}, {127.0.0.3, 15162}}, row_from_disk_bytes_per_sec={{127.0.0.1, 99.7898}, {127.0.0.3, 99.7898}} MiB/s, row_from_disk_rows_per_sec={{127.0.0.1, 223584}, {127.0.0.3, 223584}} Rows/s, tx_row_nr_peer={}, rx_row_nr_peer={}
[shard 0:strm] repair - repair[f7ac8fb6-8e49-4b31-8c7d-0d493064977c] Repair 4 out of 5 tablets: table=ks1.standard1 tablet_id=12 range=(4611686018427387903,5764607523034234879] replicas={19caaeb3-d754-4704-a998-840df53eb54c:6, 2dd3808d-6601-4483-b081-adf41ef094e5:2} primary_replica_only=true
[shard 6:strm] repair - repair[f7ac8fb6-8e49-4b31-8c7d-0d493064977c]: stats: repair_reason=repair, keyspace=ks1, tables={standard1}, ranges_nr=1, round_nr=2, round_nr_fast_path_already_synced=2, round_nr_fast_path_same_combined_hashes=0, round_nr_slow_path=0, rpc_call_nr=6, tx_hashes_nr=0, rx_hashes_nr=0, duration=0.06793772 seconds, tx_row_nr=0, rx_row_nr=0, tx_row_bytes=0, rx_row_bytes=0, row_from_disk_bytes={{127.0.0.1, 7150572}, {127.0.0.2, 7150572}}, row_from_disk_nr={{127.0.0.1, 15279}, {127.0.0.2, 15279}}, row_from_disk_bytes_per_sec={{127.0.0.1, 100.376}, {127.0.0.2, 100.376}} MiB/s, row_from_disk_rows_per_sec={{127.0.0.1, 224897}, {127.0.0.2, 224897}} Rows/s, tx_row_nr_peer={}, rx_row_nr_peer={}
[shard 0:strm] repair - repair[f7ac8fb6-8e49-4b31-8c7d-0d493064977c] Repair 5 out of 5 tablets: table=ks1.standard1 tablet_id=13 range=(5764607523034234879,6917529027641081855] replicas={19caaeb3-d754-4704-a998-840df53eb54c:5, 951cb5bc-5749-481a-9645-4dd0f624f24a:3} primary_replica_only=true
[shard 5:strm] repair - repair[f7ac8fb6-8e49-4b31-8c7d-0d493064977c]: stats: repair_reason=repair, keyspace=ks1, tables={standard1}, ranges_nr=1, round_nr=2, round_nr_fast_path_already_synced=2, round_nr_fast_path_same_combined_hashes=0, round_nr_slow_path=0, rpc_call_nr=6, tx_hashes_nr=0, rx_hashes_nr=0, duration=0.068579935 seconds, tx_row_nr=0, rx_row_nr=0, tx_row_bytes=0, rx_row_bytes=0, row_from_disk_bytes={{127.0.0.1, 7129512}, {127.0.0.3, 7129512}}, row_from_disk_nr={{127.0.0.1, 15234}, {127.0.0.3, 15234}}, row_from_disk_bytes_per_sec={{127.0.0.1, 99.1432}, {127.0.0.3, 99.1432}} MiB/s, row_from_disk_rows_per_sec={{127.0.0.1, 222135}, {127.0.0.3, 222135}} Rows/s, tx_row_nr_peer={}, rx_row_nr_peer={}
[shard 0:strm] repair - repair[f7ac8fb6-8e49-4b31-8c7d-0d493064977c]: Finished user-requested repair for tablet keyspace=ks1 tables={standard1} repair_id=6 duration=0.352379s
```
node2:
```
$nodetool repair -p 7200 -pr ks1 standard1
[shard 0:strm] repair - repair[5c805f0c-4ff2-4c5c-88df-bb318d559e0e]: starting user-requested repair for keyspace ks1, repair id 1, options {{trace -> false}, {primaryRange -> true}, {columnFamilies -> standard1}, {jobThreads -> 1}, {incremental -> false}, {parallelism -> parallel}}
[shard 0:strm] repair - repair[5c805f0c-4ff2-4c5c-88df-bb318d559e0e] Repair 1 out of 6 tablets: table=ks1.standard1 tablet_id=1 range=(-8070450532247928833,-6917529027641081857] replicas={2dd3808d-6601-4483-b081-adf41ef094e5:0, 19caaeb3-d754-4704-a998-840df53eb54c:5} primary_replica_only=true
[shard 0:strm] repair - repair[5c805f0c-4ff2-4c5c-88df-bb318d559e0e]: stats: repair_reason=repair, keyspace=ks1, tables={standard1}, ranges_nr=1, round_nr=2, round_nr_fast_path_already_synced=2, round_nr_fast_path_same_combined_hashes=0, round_nr_slow_path=0, rpc_call_nr=6, tx_hashes_nr=0, rx_hashes_nr=0, duration=0.07016466 seconds, tx_row_nr=0, rx_row_nr=0, tx_row_bytes=0, rx_row_bytes=0, row_from_disk_bytes={{127.0.0.1, 7212816}, {127.0.0.2, 7212816}}, row_from_disk_nr={{127.0.0.1, 15412}, {127.0.0.2, 15412}}, row_from_disk_bytes_per_sec={{127.0.0.1, 98.0362}, {127.0.0.2, 98.0362}} MiB/s, row_from_disk_rows_per_sec={{127.0.0.1, 219655}, {127.0.0.2, 219655}} Rows/s, tx_row_nr_peer={}, rx_row_nr_peer={}
[shard 0:strm] repair - repair[5c805f0c-4ff2-4c5c-88df-bb318d559e0e] Repair 2 out of 6 tablets: table=ks1.standard1 tablet_id=9 range=(1152921504606846975,2305843009213693951] replicas={2dd3808d-6601-4483-b081-adf41ef094e5:5, 951cb5bc-5749-481a-9645-4dd0f624f24a:7} primary_replica_only=true
[shard 5:strm] repair - repair[5c805f0c-4ff2-4c5c-88df-bb318d559e0e]: stats: repair_reason=repair, keyspace=ks1, tables={standard1}, ranges_nr=1, round_nr=2, round_nr_fast_path_already_synced=2, round_nr_fast_path_same_combined_hashes=0, round_nr_slow_path=0, rpc_call_nr=6, tx_hashes_nr=0, rx_hashes_nr=0, duration=0.07180758 seconds, tx_row_nr=0, rx_row_nr=0, tx_row_bytes=0, rx_row_bytes=0, row_from_disk_bytes={{127.0.0.2, 7236216}, {127.0.0.3, 7236216}}, row_from_disk_nr={{127.0.0.2, 15462}, {127.0.0.3, 15462}}, row_from_disk_bytes_per_sec={{127.0.0.2, 96.104}, {127.0.0.3, 96.104}} MiB/s, row_from_disk_rows_per_sec={{127.0.0.2, 215325}, {127.0.0.3, 215325}} Rows/s, tx_row_nr_peer={}, rx_row_nr_peer={}
[shard 0:strm] repair - repair[5c805f0c-4ff2-4c5c-88df-bb318d559e0e] Repair 3 out of 6 tablets: table=ks1.standard1 tablet_id=10 range=(2305843009213693951,3458764513820540927] replicas={2dd3808d-6601-4483-b081-adf41ef094e5:1, 19caaeb3-d754-4704-a998-840df53eb54c:3} primary_replica_only=true
[shard 1:strm] repair - repair[5c805f0c-4ff2-4c5c-88df-bb318d559e0e]: stats: repair_reason=repair, keyspace=ks1, tables={standard1}, ranges_nr=1, round_nr=2, round_nr_fast_path_already_synced=2, round_nr_fast_path_same_combined_hashes=0, round_nr_slow_path=0, rpc_call_nr=6, tx_hashes_nr=0, rx_hashes_nr=0, duration=0.06772773 seconds, tx_row_nr=0, rx_row_nr=0, tx_row_bytes=0, rx_row_bytes=0, row_from_disk_bytes={{127.0.0.1, 7039188}, {127.0.0.2, 7039188}}, row_from_disk_nr={{127.0.0.1, 15041}, {127.0.0.2, 15041}}, row_from_disk_bytes_per_sec={{127.0.0.1, 99.1188}, {127.0.0.2, 99.1188}} MiB/s, row_from_disk_rows_per_sec={{127.0.0.1, 222080}, {127.0.0.2, 222080}} Rows/s, tx_row_nr_peer={}, rx_row_nr_peer={}
[shard 0:strm] repair - repair[5c805f0c-4ff2-4c5c-88df-bb318d559e0e] Repair 4 out of 6 tablets: table=ks1.standard1 tablet_id=11 range=(3458764513820540927,4611686018427387903] replicas={2dd3808d-6601-4483-b081-adf41ef094e5:7, 951cb5bc-5749-481a-9645-4dd0f624f24a:1} primary_replica_only=true
[shard 7:strm] repair - repair[5c805f0c-4ff2-4c5c-88df-bb318d559e0e]: stats: repair_reason=repair, keyspace=ks1, tables={standard1}, ranges_nr=1, round_nr=2, round_nr_fast_path_already_synced=2, round_nr_fast_path_same_combined_hashes=0, round_nr_slow_path=0, rpc_call_nr=6, tx_hashes_nr=0, rx_hashes_nr=0, duration=0.07025768 seconds, tx_row_nr=0, rx_row_nr=0, tx_row_bytes=0, rx_row_bytes=0, row_from_disk_bytes={{127.0.0.2, 7229664}, {127.0.0.3, 7229664}}, row_from_disk_nr={{127.0.0.2, 15448}, {127.0.0.3, 15448}}, row_from_disk_bytes_per_sec={{127.0.0.2, 98.1351}, {127.0.0.3, 98.1351}} MiB/s, row_from_disk_rows_per_sec={{127.0.0.2, 219876}, {127.0.0.3, 219876}} Rows/s, tx_row_nr_peer={}, rx_row_nr_peer={}
[shard 0:strm] repair - repair[5c805f0c-4ff2-4c5c-88df-bb318d559e0e] Repair 5 out of 6 tablets: table=ks1.standard1 tablet_id=14 range=(6917529027641081855,8070450532247928831] replicas={2dd3808d-6601-4483-b081-adf41ef094e5:0, 19caaeb3-d754-4704-a998-840df53eb54c:7} primary_replica_only=true
[shard 0:strm] repair - repair[5c805f0c-4ff2-4c5c-88df-bb318d559e0e]: stats: repair_reason=repair, keyspace=ks1, tables={standard1}, ranges_nr=1, round_nr=2, round_nr_fast_path_already_synced=2, round_nr_fast_path_same_combined_hashes=0, round_nr_slow_path=0, rpc_call_nr=6, tx_hashes_nr=0, rx_hashes_nr=0, duration=0.0719635 seconds, tx_row_nr=0, rx_row_nr=0, tx_row_bytes=0, rx_row_bytes=0, row_from_disk_bytes={{127.0.0.1, 7225452}, {127.0.0.2, 7225452}}, row_from_disk_nr={{127.0.0.1, 15439}, {127.0.0.2, 15439}}, row_from_disk_bytes_per_sec={{127.0.0.1, 95.7531}, {127.0.0.2, 95.7531}} MiB/s, row_from_disk_rows_per_sec={{127.0.0.1, 214539}, {127.0.0.2, 214539}} Rows/s, tx_row_nr_peer={}, rx_row_nr_peer={}
[shard 0:strm] repair - repair[5c805f0c-4ff2-4c5c-88df-bb318d559e0e] Repair 6 out of 6 tablets: table=ks1.standard1 tablet_id=15 range=(8070450532247928831,9223372036854775807] replicas={2dd3808d-6601-4483-b081-adf41ef094e5:4, 19caaeb3-d754-4704-a998-840df53eb54c:3} primary_replica_only=true
[shard 4:strm] repair - repair[5c805f0c-4ff2-4c5c-88df-bb318d559e0e]: stats: repair_reason=repair, keyspace=ks1, tables={standard1}, ranges_nr=1, round_nr=2, round_nr_fast_path_already_synced=2, round_nr_fast_path_same_combined_hashes=0, round_nr_slow_path=0, rpc_call_nr=6, tx_hashes_nr=0, rx_hashes_nr=0, duration=0.0691715 seconds, tx_row_nr=0, rx_row_nr=0, tx_row_bytes=0, rx_row_bytes=0, row_from_disk_bytes={{127.0.0.1, 7122960}, {127.0.0.2, 7122960}}, row_from_disk_nr={{127.0.0.1, 15220}, {127.0.0.2, 15220}}, row_from_disk_bytes_per_sec={{127.0.0.1, 98.2049}, {127.0.0.2, 98.2049}} MiB/s, row_from_disk_rows_per_sec={{127.0.0.1, 220033}, {127.0.0.2, 220033}} Rows/s, tx_row_nr_peer={}, rx_row_nr_peer={}
[shard 0:strm] repair - repair[5c805f0c-4ff2-4c5c-88df-bb318d559e0e]: Finished user-requested repair for tablet keyspace=ks1 tables={standard1} repair_id=1 duration=0.42178s
```
node3:
```
$nodetool repair -p 7300 -pr ks1 standard1
[shard 0:strm] repair - repair[350b97f3-f06e-470f-9164-43997a4f82a6]: starting user-requested repair for keyspace ks1, repair id 1, options {{trace -> false}, {primaryRange -> true}, {columnFamilies -> standard1}, {jobThreads -> 1}, {incremental -> false}, {parallelism -> parallel}}
[shard 0:strm] repair - repair[350b97f3-f06e-470f-9164-43997a4f82a6] Repair 1 out of 5 tablets: table=ks1.standard1 tablet_id=0 range=(minimum token,-8070450532247928833] replicas={951cb5bc-5749-481a-9645-4dd0f624f24a:6, 2dd3808d-6601-4483-b081-adf41ef094e5:5} primary_replica_only=true
[shard 6:strm] repair - repair[350b97f3-f06e-470f-9164-43997a4f82a6]: stats: repair_reason=repair, keyspace=ks1, tables={standard1}, ranges_nr=1, round_nr=2, round_nr_fast_path_already_synced=2, round_nr_fast_path_same_combined_hashes=0, round_nr_slow_path=0, rpc_call_nr=6, tx_hashes_nr=0, rx_hashes_nr=0, duration=0.07126866 seconds, tx_row_nr=0, rx_row_nr=0, tx_row_bytes=0, rx_row_bytes=0, row_from_disk_bytes={{127.0.0.2, 7133256}, {127.0.0.3, 7133256}}, row_from_disk_nr={{127.0.0.2, 15242}, {127.0.0.3, 15242}}, row_from_disk_bytes_per_sec={{127.0.0.2, 95.4529}, {127.0.0.3, 95.4529}} MiB/s, row_from_disk_rows_per_sec={{127.0.0.2, 213867}, {127.0.0.3, 213867}} Rows/s, tx_row_nr_peer={}, rx_row_nr_peer={}
[shard 0:strm] repair - repair[350b97f3-f06e-470f-9164-43997a4f82a6] Repair 2 out of 5 tablets: table=ks1.standard1 tablet_id=3 range=(-5764607523034234881,-4611686018427387905] replicas={951cb5bc-5749-481a-9645-4dd0f624f24a:5, 2dd3808d-6601-4483-b081-adf41ef094e5:4} primary_replica_only=true
[shard 5:strm] repair - repair[350b97f3-f06e-470f-9164-43997a4f82a6]: stats: repair_reason=repair, keyspace=ks1, tables={standard1}, ranges_nr=1, round_nr=2, round_nr_fast_path_already_synced=2, round_nr_fast_path_same_combined_hashes=0, round_nr_slow_path=0, rpc_call_nr=6, tx_hashes_nr=0, rx_hashes_nr=0, duration=0.0701025 seconds, tx_row_nr=0, rx_row_nr=0, tx_row_bytes=0, rx_row_bytes=0, row_from_disk_bytes={{127.0.0.2, 7138404}, {127.0.0.3, 7138404}}, row_from_disk_nr={{127.0.0.2, 15253}, {127.0.0.3, 15253}}, row_from_disk_bytes_per_sec={{127.0.0.2, 97.1108}, {127.0.0.3, 97.1108}} MiB/s, row_from_disk_rows_per_sec={{127.0.0.2, 217581}, {127.0.0.3, 217581}} Rows/s, tx_row_nr_peer={}, rx_row_nr_peer={}
[shard 0:strm] repair - repair[350b97f3-f06e-470f-9164-43997a4f82a6] Repair 3 out of 5 tablets: table=ks1.standard1 tablet_id=5 range=(-3458764513820540929,-2305843009213693953] replicas={951cb5bc-5749-481a-9645-4dd0f624f24a:7, 2dd3808d-6601-4483-b081-adf41ef094e5:1} primary_replica_only=true
[shard 7:strm] repair - repair[350b97f3-f06e-470f-9164-43997a4f82a6]: stats: repair_reason=repair, keyspace=ks1, tables={standard1}, ranges_nr=1, round_nr=2, round_nr_fast_path_already_synced=2, round_nr_fast_path_same_combined_hashes=0, round_nr_slow_path=0, rpc_call_nr=6, tx_hashes_nr=0, rx_hashes_nr=0, duration=0.06859512 seconds, tx_row_nr=0, rx_row_nr=0, tx_row_bytes=0, rx_row_bytes=0, row_from_disk_bytes={{127.0.0.2, 7171632}, {127.0.0.3, 7171632}}, row_from_disk_nr={{127.0.0.2, 15324}, {127.0.0.3, 15324}}, row_from_disk_bytes_per_sec={{127.0.0.2, 99.7068}, {127.0.0.3, 99.7068}} MiB/s, row_from_disk_rows_per_sec={{127.0.0.2, 223398}, {127.0.0.3, 223398}} Rows/s, tx_row_nr_peer={}, rx_row_nr_peer={}
[shard 0:strm] repair - repair[350b97f3-f06e-470f-9164-43997a4f82a6] Repair 4 out of 5 tablets: table=ks1.standard1 tablet_id=7 range=(-1152921504606846977,-1] replicas={951cb5bc-5749-481a-9645-4dd0f624f24a:2, 2dd3808d-6601-4483-b081-adf41ef094e5:7} primary_replica_only=true
[shard 2:strm] repair - repair[350b97f3-f06e-470f-9164-43997a4f82a6]: stats: repair_reason=repair, keyspace=ks1, tables={standard1}, ranges_nr=1, round_nr=2, round_nr_fast_path_already_synced=2, round_nr_fast_path_same_combined_hashes=0, round_nr_slow_path=0, rpc_call_nr=6, tx_hashes_nr=0, rx_hashes_nr=0, duration=0.06975318 seconds, tx_row_nr=0, rx_row_nr=0, tx_row_bytes=0, rx_row_bytes=0, row_from_disk_bytes={{127.0.0.2, 7105176}, {127.0.0.3, 7105176}}, row_from_disk_nr={{127.0.0.2, 15182}, {127.0.0.3, 15182}}, row_from_disk_bytes_per_sec={{127.0.0.2, 97.1429}, {127.0.0.3, 97.1429}} MiB/s, row_from_disk_rows_per_sec={{127.0.0.2, 217653}, {127.0.0.3, 217653}} Rows/s, tx_row_nr_peer={}, rx_row_nr_peer={}
[shard 0:strm] repair - repair[350b97f3-f06e-470f-9164-43997a4f82a6] Repair 5 out of 5 tablets: table=ks1.standard1 tablet_id=8 range=(-1,1152921504606846975] replicas={951cb5bc-5749-481a-9645-4dd0f624f24a:6, 19caaeb3-d754-4704-a998-840df53eb54c:2} primary_replica_only=true
[shard 6:strm] repair - repair[350b97f3-f06e-470f-9164-43997a4f82a6]: stats: repair_reason=repair, keyspace=ks1, tables={standard1}, ranges_nr=1, round_nr=2, round_nr_fast_path_already_synced=2, round_nr_fast_path_same_combined_hashes=0, round_nr_slow_path=0, rpc_call_nr=6, tx_hashes_nr=0, rx_hashes_nr=0, duration=0.070810474 seconds, tx_row_nr=0, rx_row_nr=0, tx_row_bytes=0, rx_row_bytes=0, row_from_disk_bytes={{127.0.0.1, 7023276}, {127.0.0.3, 7023276}}, row_from_disk_nr={{127.0.0.1, 15007}, {127.0.0.3, 15007}}, row_from_disk_bytes_per_sec={{127.0.0.1, 94.5894}, {127.0.0.3, 94.5894}} MiB/s, row_from_disk_rows_per_sec={{127.0.0.1, 211932}, {127.0.0.3, 211932}} Rows/s, tx_row_nr_peer={}, rx_row_nr_peer={}
[shard 0:strm] repair - repair[350b97f3-f06e-470f-9164-43997a4f82a6]: Finished user-requested repair for tablet keyspace=ks1 tables={standard1} repair_id=1 duration=0.351395s
```
Fixes #16599
Closes scylladb/scylladb#16600
* github.com:scylladb/scylladb:
test: Add test_tablet_missing_data_repair
test: Add test_tablet_repair
test: Allow timeout in server_stop_gracefully
test: Increase STOP_TIMEOUT_SECONDS
repair: Wire tablet repair with the user repair request
repair: Pass raft_address_map to repair service
repair: Add host2ip_t type
repair: Add finished user-requested log for vnode table too
repair: Log error in the rpc_stream_handler
repair: Make row_level repair work with tablet
repair: Add get_dst_shard_id
repair: Add shard to repair_node_state
repair: Add shard map to repair_neighbors
Scylla
What is Scylla?
Scylla is the real-time big data database that is API-compatible with Apache Cassandra and Amazon DynamoDB. Scylla embraces a shared-nothing approach that increases throughput and storage capacity to realize order-of-magnitude performance improvements and reduce hardware costs.
For more information, please see the ScyllaDB web site.
Build Prerequisites
Scylla is fairly fussy about its build environment, requiring very recent versions of the C++20 compiler and of many libraries to build. The document HACKING.md includes detailed information on building and developing Scylla, but to get Scylla building quickly on (almost) any build machine, Scylla offers a frozen toolchain, This is a pre-configured Docker image which includes recent versions of all the required compilers, libraries and build tools. Using the frozen toolchain allows you to avoid changing anything in your build machine to meet Scylla's requirements - you just need to meet the frozen toolchain's prerequisites (mostly, Docker or Podman being available).
Building Scylla
Building Scylla with the frozen toolchain dbuild is as easy as:
$ git submodule update --init --force --recursive
$ ./tools/toolchain/dbuild ./configure.py
$ ./tools/toolchain/dbuild ninja build/release/scylla
For further information, please see:
- Developer documentation for more information on building Scylla.
- Build documentation on how to build Scylla binaries, tests, and packages.
- Docker image build documentation for information on how to build Docker images.
Running Scylla
To start Scylla server, run:
$ ./tools/toolchain/dbuild ./build/release/scylla --workdir tmp --smp 1 --developer-mode 1
This will start a Scylla node with one CPU core allocated to it and data files stored in the tmp directory.
The --developer-mode is needed to disable the various checks Scylla performs at startup to ensure the machine is configured for maximum performance (not relevant on development workstations).
Please note that you need to run Scylla with dbuild if you built it with the frozen toolchain.
For more run options, run:
$ ./tools/toolchain/dbuild ./build/release/scylla --help
Testing
See test.py manual.
Scylla APIs and compatibility
By default, Scylla is compatible with Apache Cassandra and its APIs - CQL and Thrift. There is also support for the API of Amazon DynamoDB™, which needs to be enabled and configured in order to be used. For more information on how to enable the DynamoDB™ API in Scylla, and the current compatibility of this feature as well as Scylla-specific extensions, see Alternator and Getting started with Alternator.
Documentation
Documentation can be found here. Seastar documentation can be found here. User documentation can be found here.
Training
Training material and online courses can be found at Scylla University. The courses are free, self-paced and include hands-on examples. They cover a variety of topics including Scylla data modeling, administration, architecture, basic NoSQL concepts, using drivers for application development, Scylla setup, failover, compactions, multi-datacenters and how Scylla integrates with third-party applications.
Contributing to Scylla
If you want to report a bug or submit a pull request or a patch, please read the contribution guidelines.
If you are a developer working on Scylla, please read the developer guidelines.
Contact
- The community forum and Slack channel are for users to discuss configuration, management, and operations of the ScyllaDB open source.
- The developers mailing list is for developers and people interested in following the development of ScyllaDB to discuss technical topics.