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From: Vladislav Shpilevoy <v.shpilevoy@tarantool.org>
To: tarantool-patches@dev.tarantool.org, olegrok@tarantool.org
Subject: [Tarantool-patches] [PATCH vshard 1/7] test: print errors in a portable way
Date: Fri,  1 May 2020 02:16:28 +0200	[thread overview]
Message-ID: <5dc5d2b0aaad4fcfc157c5a6e6bd13025ba85a25.1588292014.git.v.shpilevoy@tarantool.org> (raw)
In-Reply-To: <cover.1588292014.git.v.shpilevoy@tarantool.org>

In 2.4.1 error objects have new 'base_type' field. That makes
number of unstable fields 2: 'trace' and 'base_type'. The latter
is unstable, because does not exist before 2.4.1.

The patch introduces a function which trims all not interesting
fields from error objects in the tests. That makes the test work
on all supported tarantools.
---
 test/lua_libs/util.lua                    |  9 +++++++
 test/misc/check_uuid_on_connect.result    | 20 ++++++---------
 test/misc/check_uuid_on_connect.test.lua  |  7 ++---
 test/rebalancer/bucket_ref.result         |  8 +++---
 test/rebalancer/bucket_ref.test.lua       |  3 ++-
 test/rebalancer/receiving_bucket.result   | 18 +++++--------
 test/rebalancer/receiving_bucket.test.lua |  8 +++---
 test/router/retry_reads.result            | 10 ++------
 test/router/retry_reads.test.lua          |  6 ++---
 test/router/router.result                 | 31 ++++++++---------------
 test/router/router.test.lua               | 11 +++-----
 test/router/sync.result                   | 15 ++++++-----
 test/router/sync.test.lua                 |  4 ++-
 test/storage/storage.result               |  9 +++----
 test/storage/storage.test.lua             |  3 ++-
 test/unit/error.result                    | 18 ++++++++-----
 test/unit/error.test.lua                  |  9 +++++--
 17 files changed, 91 insertions(+), 98 deletions(-)

diff --git a/test/lua_libs/util.lua b/test/lua_libs/util.lua
index fd7ed93..9c2e667 100644
--- a/test/lua_libs/util.lua
+++ b/test/lua_libs/util.lua
@@ -193,6 +193,14 @@ local function git_checkout(dst_dir, version)
     return vshard_copy_path
 end
 
+-- Portable representation of an error, not depending on Tarantool
+-- version and on any additional fields it can add. Trace is also
+-- trimmed in order for the tests not to depend on line numbers of
+-- the source files, which may slip into a .result file.
+local function portable_error(err)
+    return {code = err.code, type = err.type, message = err.message}
+end
+
 return {
     check_error = check_error,
     shuffle_masters = shuffle_masters,
@@ -206,4 +214,5 @@ return {
     SOURCEDIR = SOURCEDIR,
     BUILDDIR = BUILDDIR,
     git_checkout = git_checkout,
+    portable_error = portable_error,
 }
diff --git a/test/misc/check_uuid_on_connect.result b/test/misc/check_uuid_on_connect.result
index d65aefe..6ebc5d0 100644
--- a/test/misc/check_uuid_on_connect.result
+++ b/test/misc/check_uuid_on_connect.result
@@ -4,10 +4,6 @@ test_run = require('test_run').new()
 fiber = require('fiber')
 ---
 ...
-test_run:cmd("push filter 'line: *[0-9]+' to 'line: <line>'")
----
-- true
-...
 REPLICASET_1 = { 'bad_uuid_1_a', 'bad_uuid_1_b' }
 ---
 ...
@@ -42,15 +38,15 @@ vshard.storage.bucket_force_create(1)
 ...
 -- Fail, because replicaset_1 sees not the actual replicaset_2's
 -- master UUID.
-vshard.storage.bucket_send(1, replicaset_uuid[2])
+res, err = vshard.storage.bucket_send(1, replicaset_uuid[2])
+---
+...
+res, util.portable_error(err)
 ---
 - null
 - type: ClientError
   code: 77
   message: Connection closed
-  trace:
-  - file: builtin/box/net_box.lua
-    line: <line>
 ...
 test_run:grep_log('bad_uuid_1_a', 'Mismatch server UUID on replica bad_uuid_2_a%(storage%@')
 ---
@@ -171,15 +167,15 @@ vshard.storage.bucket_force_create(2)
 ---
 - true
 ...
-vshard.storage.bucket_send(2, replicaset_uuid[2])
+res, err = vshard.storage.bucket_send(2, replicaset_uuid[2])
+---
+...
+res, util.portable_error(err)
 ---
 - null
 - type: ClientError
   code: 77
   message: Connection closed
-  trace:
-  - file: builtin/box/net_box.lua
-    line: <line>
 ...
 -- Close existing connection on a first error and log it.
 test_run:grep_log('bad_uuid_1_a', 'Mismatch server UUID on replica bad_uuid_2_a') ~= nil
diff --git a/test/misc/check_uuid_on_connect.test.lua b/test/misc/check_uuid_on_connect.test.lua
index b568c73..62f6593 100644
--- a/test/misc/check_uuid_on_connect.test.lua
+++ b/test/misc/check_uuid_on_connect.test.lua
@@ -1,6 +1,5 @@
 test_run = require('test_run').new()
 fiber = require('fiber')
-test_run:cmd("push filter 'line: *[0-9]+' to 'line: <line>'")
 
 REPLICASET_1 = { 'bad_uuid_1_a', 'bad_uuid_1_b' }
 REPLICASET_2 = { 'bad_uuid_2_a', 'bad_uuid_2_b' }
@@ -16,7 +15,8 @@ util = require('util')
 vshard.storage.bucket_force_create(1)
 -- Fail, because replicaset_1 sees not the actual replicaset_2's
 -- master UUID.
-vshard.storage.bucket_send(1, replicaset_uuid[2])
+res, err = vshard.storage.bucket_send(1, replicaset_uuid[2])
+res, util.portable_error(err)
 test_run:grep_log('bad_uuid_1_a', 'Mismatch server UUID on replica bad_uuid_2_a%(storage%@')
 box.space._bucket:select{}
 -- Bucket sending fails, but it remains 'sending'. It is because
@@ -64,7 +64,8 @@ util.wait_master(test_run, REPLICASET_2, 'bad_uuid_2_a')
 
 test_run:switch('bad_uuid_1_a')
 vshard.storage.bucket_force_create(2)
-vshard.storage.bucket_send(2, replicaset_uuid[2])
+res, err = vshard.storage.bucket_send(2, replicaset_uuid[2])
+res, util.portable_error(err)
 -- Close existing connection on a first error and log it.
 test_run:grep_log('bad_uuid_1_a', 'Mismatch server UUID on replica bad_uuid_2_a') ~= nil
 
diff --git a/test/rebalancer/bucket_ref.result b/test/rebalancer/bucket_ref.result
index b1f1b15..b66e449 100644
--- a/test/rebalancer/bucket_ref.result
+++ b/test/rebalancer/bucket_ref.result
@@ -137,15 +137,15 @@ vshard.storage.internal.errinj.ERRINJ_LONG_RECEIVE = true
 _ = test_run:switch('box_1_a')
 ---
 ...
-vshard.storage.bucket_send(1, util.replicasets[2])
+res, err = vshard.storage.bucket_send(1, util.replicasets[2])
+---
+...
+res, util.portable_error(err)
 ---
 - null
 - type: ClientError
   code: 32
   message: Timeout exceeded
-  trace:
-  - file: '[C]'
-    line: 4294967295
 ...
 vshard.storage.buckets_info(1)
 ---
diff --git a/test/rebalancer/bucket_ref.test.lua b/test/rebalancer/bucket_ref.test.lua
index 1fe4d84..49ba583 100644
--- a/test/rebalancer/bucket_ref.test.lua
+++ b/test/rebalancer/bucket_ref.test.lua
@@ -48,7 +48,8 @@ vshard.storage.buckets_info(1)
 _ = test_run:switch('box_2_a')
 vshard.storage.internal.errinj.ERRINJ_LONG_RECEIVE = true
 _ = test_run:switch('box_1_a')
-vshard.storage.bucket_send(1, util.replicasets[2])
+res, err = vshard.storage.bucket_send(1, util.replicasets[2])
+res, util.portable_error(err)
 vshard.storage.buckets_info(1)
 vshard.storage.bucket_ref(1, 'write')
 vshard.storage.bucket_unref(1, 'write') -- Error, no refs.
diff --git a/test/rebalancer/receiving_bucket.result b/test/rebalancer/receiving_bucket.result
index 954b549..db6a67f 100644
--- a/test/rebalancer/receiving_bucket.result
+++ b/test/rebalancer/receiving_bucket.result
@@ -160,15 +160,15 @@ vshard.storage.internal.errinj.ERRINJ_RECEIVE_PARTIALLY = true
 _ = test_run:switch('box_2_a')
 ---
 ...
-vshard.storage.bucket_send(1, util.replicasets[1], {timeout = 10})
+res, err = vshard.storage.bucket_send(1, util.replicasets[1], {timeout = 10})
+---
+...
+res, util.portable_error(err)
 ---
 - null
 - type: ClientError
   code: 32
   message: Error injection 'the bucket is received partially'
-  trace:
-  - file: '[C]'
-    line: 4294967295
 ...
 box.space._bucket:get{1}
 ---
@@ -222,10 +222,7 @@ _ = test_run:switch('box_2_a')
 _, err = vshard.storage.bucket_send(101, util.replicasets[1], {timeout = 0.1})
 ---
 ...
-err.trace = nil
----
-...
-err
+util.portable_error(err)
 ---
 - type: ClientError
   code: 78
@@ -331,15 +328,12 @@ vshard.storage.bucket_refrw(1)
 while f1:status() ~= 'dead' do fiber.sleep(0.01) end
 ---
 ...
-ret, err
+ret, util.portable_error(err)
 ---
 - null
 - type: ClientError
   code: 78
   message: Timeout exceeded
-  trace:
-  - file: '[C]'
-    line: 4294967295
 ...
 finish_long_thing = true
 ---
diff --git a/test/rebalancer/receiving_bucket.test.lua b/test/rebalancer/receiving_bucket.test.lua
index 4885815..1819cbb 100644
--- a/test/rebalancer/receiving_bucket.test.lua
+++ b/test/rebalancer/receiving_bucket.test.lua
@@ -62,7 +62,8 @@ _ = test_run:switch('box_1_a')
 while box.space._bucket:get{1} do fiber.sleep(0.01) end
 vshard.storage.internal.errinj.ERRINJ_RECEIVE_PARTIALLY = true
 _ = test_run:switch('box_2_a')
-vshard.storage.bucket_send(1, util.replicasets[1], {timeout = 10})
+res, err = vshard.storage.bucket_send(1, util.replicasets[1], {timeout = 10})
+res, util.portable_error(err)
 box.space._bucket:get{1}
 _ = test_run:switch('box_1_a')
 box.space._bucket:get{1}
@@ -88,8 +89,7 @@ _ = test_run:switch('box_1_a')
 vshard.storage.internal.errinj.ERRINJ_LAST_RECEIVE_DELAY = true
 _ = test_run:switch('box_2_a')
 _, err = vshard.storage.bucket_send(101, util.replicasets[1], {timeout = 0.1})
-err.trace = nil
-err
+util.portable_error(err)
 box.space._bucket:get{101}
 while box.space._bucket:get{101}.status ~= vshard.consts.BUCKET.ACTIVE do vshard.storage.recovery_wakeup() fiber.sleep(0.01) end
 box.space._bucket:get{101}
@@ -126,7 +126,7 @@ while f1:status() ~= 'suspended' do fiber.sleep(0.01) end
 vshard.storage.buckets_info(1)
 vshard.storage.bucket_refrw(1)
 while f1:status() ~= 'dead' do fiber.sleep(0.01) end
-ret, err
+ret, util.portable_error(err)
 finish_long_thing = true
 while f:status() ~= 'dead' do fiber.sleep(0.01) end
 vshard.storage.buckets_info(1)
diff --git a/test/router/retry_reads.result b/test/router/retry_reads.result
index 8873310..ae60267 100644
--- a/test/router/retry_reads.result
+++ b/test/router/retry_reads.result
@@ -113,10 +113,7 @@ fiber.time() - start < 1
 ---
 - true
 ...
-e.trace = nil
----
-...
-e
+util.portable_error(e)
 ---
 - type: ClientError
   code: 0
@@ -125,10 +122,7 @@ e
 _, e = rs1:callro('sleep', {1}, {timeout = 0.0001})
 ---
 ...
-e.trace = nil
----
-...
-e
+util.portable_error(e)
 ---
 - type: ClientError
   code: 78
diff --git a/test/router/retry_reads.test.lua b/test/router/retry_reads.test.lua
index ebfd1a9..c1fb689 100644
--- a/test/router/retry_reads.test.lua
+++ b/test/router/retry_reads.test.lua
@@ -40,12 +40,10 @@ fiber.time() - start < 1
 start = fiber.time()
 _, e = rs1:callro('raise_client_error', {}, {timeout = 5})
 fiber.time() - start < 1
-e.trace = nil
-e
+util.portable_error(e)
 
 _, e = rs1:callro('sleep', {1}, {timeout = 0.0001})
-e.trace = nil
-e
+util.portable_error(e)
 
 --
 -- Do not send multiple requests during timeout - it brokes long
diff --git a/test/router/router.result b/test/router/router.result
index 31a351f..d85f718 100644
--- a/test/router/router.result
+++ b/test/router/router.result
@@ -255,35 +255,21 @@ vshard.router.static.replicasets[util.replicasets[2]].bucket_count
 _, e = vshard.router.callro(1, 'raise_client_error', {}, {})
 ---
 ...
-e.trace = nil
----
-...
-e
+util.portable_error(e)
 ---
 - type: ClientError
-  message: Unknown error
   code: 32
-...
-tostring(e)
----
-- '{"type":"ClientError","message":"Unknown error","code":32}'
+  message: Unknown error
 ...
 _, e = vshard.router.route(1):callro('raise_client_error', {})
 ---
 ...
-e.trace = nil
----
-...
-e
+util.portable_error(e)
 ---
 - type: ClientError
   code: 0
   message: Unknown error
 ...
-tostring(e)
----
-- '{"type":"ClientError","code":0,"message":"Unknown error"}'
-...
 -- Ensure, that despite not working multi-return, it is allowed
 -- to return 'nil, err_obj'.
 vshard.router.callro(1, 'echo', {nil, 'error_object'}, {})
@@ -632,11 +618,14 @@ future:is_ready()
 future = vshard.router.callrw(bucket_id, 'raise_client_error', {}, {is_async = true})
 ---
 ...
-future:wait_result()
+res, err = future:wait_result()
 ---
-- null
-- {'type': 'ClientError', 'message': 'Unknown error', 'code': 32, 'trace': [{'file': '[C]',
-      'line': 4294967295}]}
+...
+util.portable_error(err)
+---
+- type: ClientError
+  code: 32
+  message: Unknown error
 ...
 future:is_ready()
 ---
diff --git a/test/router/router.test.lua b/test/router/router.test.lua
index 571759a..abc1a3c 100644
--- a/test/router/router.test.lua
+++ b/test/router/router.test.lua
@@ -95,13 +95,9 @@ vshard.router.static.replicasets[util.replicasets[2]].bucket_count
 -- Test lua errors.
 --
 _, e = vshard.router.callro(1, 'raise_client_error', {}, {})
-e.trace = nil
-e
-tostring(e)
+util.portable_error(e)
 _, e = vshard.router.route(1):callro('raise_client_error', {})
-e.trace = nil
-e
-tostring(e)
+util.portable_error(e)
 -- Ensure, that despite not working multi-return, it is allowed
 -- to return 'nil, err_obj'.
 vshard.router.callro(1, 'echo', {nil, 'error_object'}, {})
@@ -216,7 +212,8 @@ future = vshard.router.callro(bucket_id, 'space_get', {'test', {1}}, {is_async =
 future:wait_result()
 future:is_ready()
 future = vshard.router.callrw(bucket_id, 'raise_client_error', {}, {is_async = true})
-future:wait_result()
+res, err = future:wait_result()
+util.portable_error(err)
 future:is_ready()
 future = vshard.router.callrw(bucket_id, 'do_push', args, {is_async = true})
 func, iter, i = future:pairs()
diff --git a/test/router/sync.result b/test/router/sync.result
index 83443af..6f0821d 100644
--- a/test/router/sync.result
+++ b/test/router/sync.result
@@ -38,6 +38,9 @@ _ = test_run:cmd("start server router_1")
 _ = test_run:switch("router_1")
 ---
 ...
+util = require('util')
+---
+...
 vshard.router.bootstrap()
 ---
 - true
@@ -47,15 +50,13 @@ vshard.router.sync(-1)
 - null
 - Timeout exceeded
 ...
-vshard.router.sync(0)
+res, err = vshard.router.sync(0)
 ---
-- null
-- replicaset: ac522f65-aa94-4134-9f64-51ee384f1a54
+...
+util.portable_error(err)
+---
+- type: ClientError
   code: 78
-  trace:
-  - file: builtin/box/net_box.lua
-    line: <line>
-  type: ClientError
   message: Timeout exceeded
 ...
 --
diff --git a/test/router/sync.test.lua b/test/router/sync.test.lua
index 9602a4d..3150343 100644
--- a/test/router/sync.test.lua
+++ b/test/router/sync.test.lua
@@ -11,11 +11,13 @@ util.map_evals(test_run, {REPLICASET_1, REPLICASET_2}, 'bootstrap_storage(\'memt
 _ = test_run:cmd("create server router_1 with script='router/router_1.lua'")
 _ = test_run:cmd("start server router_1")
 _ = test_run:switch("router_1")
+util = require('util')
 
 vshard.router.bootstrap()
 
 vshard.router.sync(-1)
-vshard.router.sync(0)
+res, err = vshard.router.sync(0)
+util.portable_error(err)
 
 --
 -- gh-190: router should not ignore cfg.sync_timeout.
diff --git a/test/storage/storage.result b/test/storage/storage.result
index 007d9fb..424bc4c 100644
--- a/test/storage/storage.result
+++ b/test/storage/storage.result
@@ -506,15 +506,14 @@ vshard.storage.bucket_recv(100, 'from_uuid', {{1000, {{1}}}})
 --
 -- Test not existing space in bucket data.
 --
-vshard.storage.bucket_recv(4, util.replicasets[2], {{1000, {{1}}}})
+res, err = vshard.storage.bucket_recv(4, util.replicasets[2], {{1000, {{1}}}})
+---
+...
+util.portable_error(err)
 ---
-- null
 - type: ClientError
   code: 36
   message: Space '1000' does not exist
-  trace:
-  - file: '[C]'
-    line: 4294967295
 ...
 while box.space._bucket:get{4} do vshard.storage.recovery_wakeup() fiber.sleep(0.01) end
 ---
diff --git a/test/storage/storage.test.lua b/test/storage/storage.test.lua
index 0e82cd1..d631b51 100644
--- a/test/storage/storage.test.lua
+++ b/test/storage/storage.test.lua
@@ -121,7 +121,8 @@ vshard.storage.bucket_recv(100, 'from_uuid', {{1000, {{1}}}})
 --
 -- Test not existing space in bucket data.
 --
-vshard.storage.bucket_recv(4, util.replicasets[2], {{1000, {{1}}}})
+res, err = vshard.storage.bucket_recv(4, util.replicasets[2], {{1000, {{1}}}})
+util.portable_error(err)
 while box.space._bucket:get{4} do vshard.storage.recovery_wakeup() fiber.sleep(0.01) end
 
 --
diff --git a/test/unit/error.result b/test/unit/error.result
index f74438f..144df44 100644
--- a/test/unit/error.result
+++ b/test/unit/error.result
@@ -19,9 +19,15 @@ ok, err = pcall(box.error, box.error.TIMEOUT)
 box_error = lerror.box(err)
 ---
 ...
-tostring(box_error)
+str = tostring(box_error)
 ---
-- '{"type":"ClientError","code":78,"message":"Timeout exceeded","trace":[{"file":"[C]","line":4294967295}]}'
+...
+-- Base_type appears in 2.4.1. Simple nullification of base_type
+-- won't work, since order of the old fields becomes different.
+assert(str == '{"type":"ClientError","code":78,"message":"Timeout exceeded","trace":[{"file":"[C]","line":4294967295}]}' or \
+       str == '{"code":78,"base_type":"ClientError","type":"ClientError","message":"Timeout exceeded","trace":[{"file":"[C]","line":4294967295}]}')
+---
+- true
 ...
 vshard_error = lerror.vshard(lerror.code.UNREACHABLE_MASTER, 'uuid', 'reason')
 ---
@@ -80,12 +86,12 @@ function raise_lua_err() assert(false) end
 ok, err = pcall(raise_lua_err)
 ---
 ...
-lerror.make(err)
+err = lerror.make(err)
+---
+...
+util.portable_error(err)
 ---
 - type: ClientError
   code: 32
   message: '[string "function raise_lua_err() assert(false) end "]:1: assertion failed!'
-  trace:
-  - file: '[C]'
-    line: 4294967295
 ...
diff --git a/test/unit/error.test.lua b/test/unit/error.test.lua
index 6c15707..2ba7da6 100644
--- a/test/unit/error.test.lua
+++ b/test/unit/error.test.lua
@@ -8,7 +8,11 @@ lerror = vshard.error
 --
 ok, err = pcall(box.error, box.error.TIMEOUT)
 box_error = lerror.box(err)
-tostring(box_error)
+str = tostring(box_error)
+-- Base_type appears in 2.4.1. Simple nullification of base_type
+-- won't work, since order of the old fields becomes different.
+assert(str == '{"type":"ClientError","code":78,"message":"Timeout exceeded","trace":[{"file":"[C]","line":4294967295}]}' or \
+       str == '{"code":78,"base_type":"ClientError","type":"ClientError","message":"Timeout exceeded","trace":[{"file":"[C]","line":4294967295}]}')
 
 vshard_error = lerror.vshard(lerror.code.UNREACHABLE_MASTER, 'uuid', 'reason')
 tostring(vshard_error)
@@ -32,4 +36,5 @@ util.check_error(lerror.vshard, 'Wrong format code', 'arg1', 'arg2')
 
 function raise_lua_err() assert(false) end
 ok, err = pcall(raise_lua_err)
-lerror.make(err)
+err = lerror.make(err)
+util.portable_error(err)
-- 
2.21.1 (Apple Git-122.3)

  reply	other threads:[~2020-05-01  0:16 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-01  0:16 [Tarantool-patches] [PATCH vshard 0/7] Router extended discovery Vladislav Shpilevoy
2020-05-01  0:16 ` Vladislav Shpilevoy [this message]
2020-05-01 16:58   ` [Tarantool-patches] [PATCH vshard 1/7] test: print errors in a portable way Oleg Babin
2020-05-02 20:08     ` Vladislav Shpilevoy
2020-05-04 14:26       ` Oleg Babin
2020-05-01  0:16 ` [Tarantool-patches] [PATCH vshard 2/7] router: introduce discovery_mode Vladislav Shpilevoy
2020-05-01 16:59   ` Oleg Babin
2020-05-01  0:16 ` [Tarantool-patches] [PATCH vshard 3/7] test: disable router discovery for some tests Vladislav Shpilevoy
2020-05-01 17:00   ` Oleg Babin
2020-05-02 20:09     ` Vladislav Shpilevoy
2020-05-04 14:26       ` Oleg Babin
2020-05-01  0:16 ` [Tarantool-patches] [PATCH vshard 4/7] test: clear route map, respecting statistics Vladislav Shpilevoy
2020-05-01 17:00   ` Oleg Babin
2020-05-01  0:16 ` [Tarantool-patches] [PATCH vshard 5/7] router: keep known bucket count stat up to date Vladislav Shpilevoy
2020-05-01 17:01   ` Oleg Babin
2020-05-01  0:16 ` [Tarantool-patches] [PATCH vshard 6/7] router: make discovery smoother in a big cluster Vladislav Shpilevoy
2020-05-01 17:01   ` Oleg Babin
2020-05-02 20:12     ` Vladislav Shpilevoy
2020-05-04 14:26       ` Oleg Babin
2020-05-04 21:09         ` Vladislav Shpilevoy
2020-05-06  8:27           ` Oleg Babin
2020-05-07 22:45   ` Konstantin Osipov
2020-05-08 19:56     ` Vladislav Shpilevoy
2020-05-09  7:37       ` Konstantin Osipov
2020-05-01  0:16 ` [Tarantool-patches] [PATCH vshard 7/7] router: introduce discovery mode 'once' Vladislav Shpilevoy
2020-05-01 17:02   ` Oleg Babin
2020-05-02 20:12     ` Vladislav Shpilevoy
2020-05-04 14:27       ` Oleg Babin
2020-05-06 20:54 ` [Tarantool-patches] [PATCH vshard 0/7] Router extended discovery Vladislav Shpilevoy

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