86f99959b0
Merge pull request #13054 from keynslug/fix/EMQX-12365/node-leave
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fix(dsrepl): anticipate and handle nodes leaving the cluster
2024-05-17 09:43:15 +02:00
ee6e7174cf
fix(sessds): Rename the durable messages DB to `messages`
2024-05-16 21:31:32 +02:00
5157e61418
fix(dsrepl): verify if shards already allocated first
2024-05-16 18:56:54 +02:00
0119728d45
feat(dsrepl): also reflect pending transitions in ds status
2024-05-16 18:56:21 +02:00
26c4a4f597
feat(dsrepl): reflect conflicts and inconsistencies in ds status
2024-05-16 18:32:08 +02:00
7e86e3e61c
fix(dsrepl): anticipate and handle nodes leaving the cluster
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Also make `claim_site/2` safer by refusing to claim a site for a node
that is already there.
2024-05-16 18:32:07 +02:00
35e360fcbe
feat(api-ds): provide more information on nonexistent site leave
2024-05-14 15:57:41 +02:00
525e4dac95
Merge pull request #13036 from ieQu1/dev/reduce-log-spam
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tests: Reduce log spam in the failed test suites
2024-05-14 10:53:30 +02:00
ac3f5a083d
test: Reduce log spam in the failed test suites
2024-05-13 22:00:33 +02:00
8506ca7919
Merge pull request #12998 from ieQu1/dev/improve-latency
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Use leader's clock when calculating LTS cutoff timestamp
2024-05-13 21:54:06 +02:00
3da3a36863
test(ds): Add generation in the replication suite
2024-05-13 19:51:04 +02:00
9f7ef9f34f
fix(ds): Apply review remarks
2024-05-13 19:35:24 +02:00
07aa708894
test(ds): Refactor replication suite
2024-05-09 03:56:56 +02:00
63e51fca66
test(ds): Use streams to fill the storage
2024-05-09 02:46:57 +02:00
a0a3977043
feat(ds): Assign latest timestamp deterministically
2024-05-08 23:17:57 +02:00
2236af84ba
feat(ds): two-stage storage commit on the storage level
2024-05-08 23:17:57 +02:00
1ddbbca90e
feat(ds): Allow incremental update of the LTS trie
2024-05-08 23:17:57 +02:00
68ca891f41
test(ds): Use streams to create traffic
2024-05-08 23:17:57 +02:00
d84c180ccb
feat(dsrepl): avoid contacting unreachable ra servers
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Assuming estabilished Erlang distribution channel is a reliable way to
tell whether a remote node is reachable.
2024-05-08 18:12:13 +02:00
3642bcd1b6
docs(ds): Fix comment for the builtin DS metrics
2024-05-06 11:21:32 +02:00
b2a633aca1
fix(ds): Use leader's clock for computing LTS safe cutoff time
2024-05-06 11:21:32 +02:00
1ff2e02fd9
feat(ds): Pass current time to the storage layer via argument
2024-05-06 11:21:32 +02:00
8ac9700aab
feat(ds): Add an API for DB-global variables
2024-05-06 11:21:32 +02:00
86d45522e3
fix(dsrepl): Don't reverse elements of batches
2024-05-06 11:21:32 +02:00
bcfa7b2209
fix(ds): Destroy LTS tries when the generation is dropped
2024-05-06 11:21:32 +02:00
9999ccd36c
feat(ds): Ignore safe cutoff time for streams without varying levels
2024-05-06 11:21:32 +02:00
e4c3283c9c
docs(ds): Update README with CLI and REST API endpoints
2024-04-23 16:28:35 +02:00
4c76a2574d
fix(ds): Fix egress flush condition
2024-04-21 21:51:31 +02:00
43f8346c00
fix(dssnap): ensure idempotent write of empty chunks
2024-04-19 18:52:33 +02:00
93bb840365
docs(ds): Update README
2024-04-17 01:21:52 +02:00
5d7b2e2ce6
fix(dsrepl): attempt leadership transfer on terminate
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In addition to on removal. The reasoning is basically the same: try to
avoid situations when log entries are replicated (or will be considered
replicated when the new leader is elected) but the leader terminates
before replying to the client.
To be clear: this is a stupid solution. Something much more robust is
needed.
2024-04-15 22:05:24 +02:00
89f42f1171
fix(dsrepl): make placeholder shard process permanent under supervisor
2024-04-15 16:43:52 +02:00
c4d1360b96
fix(dsrepl): trigger election for new ra servers unconditionallly
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Otherwise we might end up in a situation when there's no member online
yet at the time of the election trigger, and the election will never
happen.
2024-04-15 16:42:29 +02:00
d12e907209
fix(dsrepl): correctly handle ra membership change command results
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Before this change, results similar to `{error, {no_more_servers_to_try,
[{error, nodedown}, {error, not_member}]}}` were considered retryable
failures, which is incorrect.
2024-04-08 22:44:34 +02:00
3223797ae5
fix(dsrepl): attempt leadership transfer before server removal
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This should make it much less likely to hit weird edge cases that lead
to duplicate Raft log entries because of client retries upon receiving
`shutdown` from the leader being removed.
2024-04-08 22:43:58 +02:00
1e95bd4da6
test(dsrepl): test unresponsive nodes removal / node restarts
2024-04-08 21:27:56 +02:00
7a836317ac
fix(dsrepl): trigger unfinished shard transition upon startup
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Also provide a trivial API to trigger them by hand.
2024-04-08 16:12:42 +02:00
75bb7f5cdc
fix(dsrepl): retry only `{add, Site}` crashed membership transitions
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To minimize the potential negative impact of removal transitions that
crash for some unknown and unusual reasons.
2024-04-08 16:04:33 +02:00
4c0cc079c2
fix(dsrepl): apply unnecessary rebalancing transitions cleanly
2024-04-08 13:25:45 +02:00
dcde30c38a
test(dsrepl): add two more testcases for rebalancing
2024-04-08 13:22:31 +02:00
2ace9bb893
chore(dsrepl): sprinkle few comments and typespecs for exports
2024-04-07 22:51:56 +02:00
ecaad348a7
chore(dsrepl): update few outdated comments / TODOs
2024-04-07 22:51:56 +02:00
6293efb995
fix(dsrepl): retry crashed membership transitions
2024-04-07 22:51:56 +02:00
826ce5806d
fix(dsrepl): ensure that new member UID matches server's UID
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Before that change, UIDs supplied in the `ra:add_member/3` were not
the same as those servers were using. This haven't caused any issues
for some reason, but it's better to ensure that UIDs are the same.
2024-04-07 22:31:24 +02:00
556ffc78c9
feat(dsrepl): implement membership changes and rebalancing
2024-04-05 18:57:28 +02:00
d6058b7f51
feat(dsrepl): allow to subscribe to DB metadata changes
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Currently, only shard metadata changes are announced to the
subscribers.
2024-04-05 17:40:55 +02:00
a07295d3bc
fix(ds): address shards in the supervisor properly
2024-04-05 17:40:38 +02:00
a62db08676
feat(ds): Add REST API for durable storage
2024-04-05 15:22:06 +02:00
d09787d1a6
fix(ds): Fix return types in replication_layer_meta
2024-04-05 15:22:06 +02:00
70396e9766
Merge pull request #12825 from keynslug/feat/EMQX-12110/repl-meta-api
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feat(dsrepl): add APIs to manage DB replication sites
2024-04-04 22:32:03 +02:00
Andrew Mayorov