tarantool/vshard

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The new generation of sharding based on virtual buckets

Stars: 111
Forks: 37
Open beginner issues: 0
Indexed issues: 152

Dominant language: Lua
License: No license data
Last GitHub push: Jul 29, 2026
Latest indexed: Sep 19, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: good first issue
PR merge metrics: No merged PRs in 30d

Beginner friendly Everything

Open All

152 open issues indexed

storage: data loss during bucket transfer Open

tarantool/vshard#665 · 5 comments · 1 assignee · Opened Aug 20, 2026
router: `callbre()` resets the balancing cursor onto the master Open

good first issue

Difficulty 4/5 3-5 days Newbie friendliness 52/100

tarantool/vshard#664 · 1 comment · Opened Aug 20, 2026
Add independent pacing controls for bucket garbage collection Open

needs feedback

tarantool/vshard#659 · 1 assignee · Opened Jul 9, 2026
Test and document VShard upgrade order Open

tarantool/vshard#654 · 1 assignee · Opened Jun 10, 2026
Printing errors should be wrapped with `json_encode` function Open

good first issue

Difficulty 2/5 1-3 hours Newbie friendliness 74/100

tarantool/vshard#651 · Opened May 23, 2026
Bootstrap can lead to doubled buckets Open

tarantool/vshard#650 · 1 comment · 1 assignee · Opened May 22, 2026
Warn users about the doubled bucket situation in cluster and probably stop writing to doubled buckets to minimize the effect Open

tarantool/vshard#645 · 3 comments · 1 assignee · Opened Mar 18, 2026
router: pings may be way too agressive in large clusters and affect CPU Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

tarantool/vshard#640 · 1 reaction · Opened Jan 29, 2026
Broken cartridge integrational CI Open

Difficulty 3/5 1-2 days Newbie friendliness 30/100

tarantool/vshard#635 · 2 comments · Opened Jan 23, 2026
Inconsistent return types in storage local_call for older Tarantool versions Open

Difficulty 3/5 1-2 days Newbie friendliness 38/100

tarantool/vshard#630 · 1 comment · Opened Dec 23, 2025
Malformed replication status log message Open

bug

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

tarantool/vshard#624 · 1 comment · Opened Nov 27, 2025
Doubled buckets due to excluding nodes during rebalancing Open

complicated rebalancer

Difficulty 5/5 Over a week Newbie friendliness 25/100

tarantool/vshard#623 · Opened Nov 27, 2025
rebalancer: limitter hides serious rebalancer errors Open

rebalancer storage verbosity

Difficulty 3/5 1-2 days Newbie friendliness 48/100

tarantool/vshard#621 · Opened Nov 14, 2025
No convenient way to set up (mutual) TLS connections between routers and storages Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

tarantool/vshard#615 · Opened Oct 31, 2025
ratelimit: rebalancer_apply_routes is not covered with log ratelimiter Open

good first issue storage verbosity

Difficulty 3/5 1-2 days Newbie friendliness 48/100

tarantool/vshard#611 · Opened Oct 28, 2025
vtest: fix cluster_new for replicaset with ssl replication Open

bug storage

Difficulty 4/5 3-5 days Newbie friendliness 25/100

tarantool/vshard#603 · Opened Oct 16, 2025
Split discovery fiber to per-replicaset fibers Open

not a bug router

Difficulty 4/5 3-5 days Newbie friendliness 35/100

tarantool/vshard#602 · Opened Oct 13, 2025
Failover assertion failure Open

router

Difficulty 4/5 3-5 days Newbie friendliness 35/100

tarantool/vshard#598 · Opened Sep 18, 2025
`return_raw=true` option doesn't work with `is_async=true` router.call Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

tarantool/vshard#592 · 1 comment · Opened Aug 27, 2025
router.call doesn't work with buffer Open

Difficulty 3/5 1-2 days Newbie friendliness 50/100

tarantool/vshard#591 · 1 reaction · Opened Aug 27, 2025
Setup performance tests in CI and report results to grafana Open

tarantool/vshard#587 · 1 assignee · Opened Aug 15, 2025
Router's failover causes spam of `VHANDSHAKE_NOT_COMPLETE` error in logs of the storage Open

storage

Difficulty 4/5 3-5 days Newbie friendliness 32/100

tarantool/vshard#583 · 1 comment · Opened Aug 12, 2025
Introduce integration testing with other modules Open

code health

tarantool/vshard#582 · 1 assignee · Opened Aug 11, 2025
Do not spam internal errors in logs from services Open

router storage

Difficulty 4/5 3-5 days Newbie friendliness 35/100

tarantool/vshard#578 · Opened Aug 8, 2025
storage: make `vshard.storage.call` JITable Open

storage

tarantool/vshard#575 · 1 assignee · Opened Aug 4, 2025
router: make call path JITable Open

router

tarantool/vshard#574 · 1 assignee · Opened Aug 4, 2025
Rebalancer doesn't notice fast weight change Open

customer rebalancer storage

Difficulty 5/5 Over a week Newbie friendliness 35/100

tarantool/vshard#571 · Opened Jul 30, 2025
Ensure that the detached replicaset objects and their replica objects are GCed after reconfig Open

qa

Difficulty 4/5 3-5 days Newbie friendliness 45/100

tarantool/vshard#570 · Opened Jul 25, 2025
Vshard upgrade procedure may loose priveleges to `vshard.storage.bucket_recv`, error during vshard's schema upgrade Open

bug needs feedback storage

Difficulty 4/5 3-5 days Newbie friendliness 38/100

tarantool/vshard#567 · 1 comment · Opened Jul 15, 2025
`net.box.self.call` majorly affects the performance of `vshard` Open

bug optimization

Difficulty 4/5 3-5 days Newbie friendliness 35/100

tarantool/vshard#564 · 2 comments · Opened Jul 1, 2025
Full `map_callrw` with split args Open

tarantool/vshard#559 · 4 comments · 1 assignee · Opened Jun 9, 2025
Introduce testing for vshard cluster upgrade Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

tarantool/vshard#557 · Opened Jun 4, 2025
Expose `vshard.error` module Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

tarantool/vshard#555 · 1 comment · Opened Jun 3, 2025
Drop old Tarantool version support Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

tarantool/vshard#552 · Opened May 16, 2025
Bad master search design: `failover_ping` causes reconnects replicas on `vshard.router.info().replicasets[].replica` with master="auto" mode Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

tarantool/vshard#547 · 9 comments · Opened Apr 30, 2025
flaky test: reload_evolution/storage.test.lua Open

flaky test qa

Difficulty 3/5 1-2 days Newbie friendliness 35/100

tarantool/vshard#533 · Opened Mar 13, 2025
flaky test: rebalancer/bucket_ref.test.lua Open

flaky test qa

Difficulty 3/5 1-2 days Newbie friendliness 35/100

tarantool/vshard#532 · Opened Mar 13, 2025
flaky test: replicaset-luatest/vconnect_test Open

flaky test qa

Difficulty 3/5 1-2 days Newbie friendliness 30/100

tarantool/vshard#530 · Opened Mar 12, 2025
flaky test: router-luatest/reload_test Open

flaky test qa

Difficulty 3/5 1-2 days Newbie friendliness 35/100

tarantool/vshard#529 · Opened Mar 12, 2025
flaky test: storage-luatest/garbage_collector.lua Open

flaky test qa

Difficulty 3/5 1-2 days Newbie friendliness 35/100

tarantool/vshard#527 · Opened Mar 12, 2025
flaky test: storage/storage.test.lua Open

flaky test qa

Difficulty 3/5 1-2 days Newbie friendliness 25/100

tarantool/vshard#525 · Opened Mar 12, 2025
flaky test: storage-luatest/persistent_names_test Open

flaky test qa

Difficulty 3/5 1-2 days Newbie friendliness 35/100

tarantool/vshard#524 · Opened Mar 12, 2025
Fix vshard flaky tests Open

epic qa

Difficulty 5/5 Over a week Newbie friendliness 15/100

tarantool/vshard#523 · 1 comment · Opened Mar 12, 2025
flaky test: failover/failover.test.lua Open

flaky test qa

Difficulty 4/5 3-5 days Newbie friendliness 45/100

tarantool/vshard#522 · Opened Mar 12, 2025
Name check doesn't work on reconfiguration from named to unnamed identification and vice versa Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

tarantool/vshard#519 · Opened Mar 5, 2025
router: drop connection detach in failover Open

router

Difficulty 4/5 3-5 days Newbie friendliness 30/100

tarantool/vshard#510 · Opened Feb 1, 2025
flaky test: upgrade/upgrade.test.lua Open

flaky test qa

Difficulty 3/5 1-2 days Newbie friendliness 38/100

tarantool/vshard#509 · 1 comment · Opened Jan 31, 2025
Garbage collector doesn't work with varbinary primary index Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

tarantool/vshard#507 · Opened Dec 25, 2024
Identify call router request in logs Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

tarantool/vshard#506 · 6 comments · 2 reactions · Opened Dec 19, 2024
router: protect `routeall()` and others from modification Open

bug router

tarantool/vshard#502 · 4 comments · 1 assignee · Opened Dec 5, 2024

tarantool/vshard

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