[Tarantool-patches] [PATCH v1] replication: change space sync mode in a loop
sergeyb at tarantool.org
sergeyb at tarantool.org
Wed Aug 26 18:10:10 MSK 2020
From: Sergey Bronnikov <sergeyb at tarantool.org>
New regression tests covers cases when one can change synchronous mode
of space to asynchronous and vice versa.
Closes #5055
Part of #5144
---
Branch: ligurio/gh-4842-qsync-change-mode
CI: https://gitlab.com/tarantool/tarantool/-/pipelines/182271234
test/replication/qsync_sync_mode.result | 164 ++++++++++++++++++++++
test/replication/qsync_sync_mode.test.lua | 90 ++++++++++++
2 files changed, 254 insertions(+)
create mode 100644 test/replication/qsync_sync_mode.result
create mode 100644 test/replication/qsync_sync_mode.test.lua
diff --git a/test/replication/qsync_sync_mode.result b/test/replication/qsync_sync_mode.result
new file mode 100644
index 000000000..f2f95ec0f
--- /dev/null
+++ b/test/replication/qsync_sync_mode.result
@@ -0,0 +1,164 @@
+-- test-run result file version 2
+env = require('test_run')
+ | ---
+ | ...
+test_run = env.new()
+ | ---
+ | ...
+engine = test_run:get_cfg('engine')
+ | ---
+ | ...
+fiber = require('fiber')
+ | ---
+ | ...
+math = require('math')
+ | ---
+ | ...
+math.randomseed(os.time())
+ | ---
+ | ...
+
+orig_synchro_quorum = box.cfg.replication_synchro_quorum
+ | ---
+ | ...
+orig_synchro_timeout = box.cfg.replication_synchro_timeout
+ | ---
+ | ...
+
+disable_sync_mode = function() \
+ local s = box.space._space:get(box.space.sync.id) \
+ local new_s = s:update({{'=', 6, {is_sync=false}}}) \
+ box.space._space:replace(new_s) \
+end
+ | ---
+ | ...
+
+enable_sync_mode = function() \
+ local s = box.space._space:get(box.space.sync.id) \
+ local new_s = s:update({{'=', 6, {is_sync=true}}}) \
+ box.space._space:replace(new_s) \
+end
+ | ---
+ | ...
+
+set_random_sync_mode = function() \
+ if (math.random(1, 10) > 5) then \
+ enable_sync_mode() \
+ else \
+ disable_sync_mode() \
+ end \
+end
+ | ---
+ | ...
+
+set_random_quorum = function(n) \
+ box.cfg{replication_synchro_quorum=math.random(1, n)} \
+end
+ | ---
+ | ...
+
+box.schema.user.grant('guest', 'replication')
+ | ---
+ | ...
+
+-- Setup an async cluster with two instances.
+test_run:cmd('create server replica with rpl_master=default,\
+ script="replication/replica.lua"')
+ | ---
+ | - true
+ | ...
+test_run:cmd('start server replica with wait=True, wait_load=True')
+ | ---
+ | - true
+ | ...
+
+-- Write data to a leader, enable and disable sync mode in background in a
+-- loop. Expected no data loss.
+-- Testcase setup.
+_ = box.schema.space.create('sync', {is_sync=true, engine=engine})
+ | ---
+ | ...
+_ = box.space.sync:create_index('pk')
+ | ---
+ | ...
+box.cfg{replication_synchro_quorum=2, replication_synchro_timeout=0.001}
+ | ---
+ | ...
+-- Testcase body.
+for i = 1,10 do \
+ set_random_sync_mode() \
+ if pcall(box.space.sync.insert, box.space.sync, {i}) then \
+ test_run:switch('replica') \
+ test_run:wait_cond(function() return box.space.sync:get{i} ~= nil end) \
+ end \
+ test_run:switch('default') \
+end
+ | ---
+ | ...
+-- Testcase cleanup.
+test_run:switch('default')
+ | ---
+ | - true
+ | ...
+box.space.sync:drop()
+ | ---
+ | ...
+
+-- Write data to a leader, enable and disable sync mode and change quorum value
+-- in background in a loop.
+-- Testcase setup.
+_ = box.schema.space.create('sync', {is_sync=true, engine=engine})
+ | ---
+ | ...
+_ = box.space.sync:create_index('pk')
+ | ---
+ | ...
+box.cfg{replication_synchro_quorum=2, replication_synchro_timeout=0.001}
+ | ---
+ | ...
+-- Testcase body.
+for i = 1,10 do \
+ set_random_sync_mode() \
+ set_random_quorum(5) \
+ if pcall(box.space.sync.insert, box.space.sync, {i}) then \
+ test_run:switch('replica') \
+ test_run:wait_cond(function() return box.space.sync:get{i} ~= nil end) \
+ end \
+ test_run:switch('default') \
+end
+ | ---
+ | ...
+-- Testcase cleanup.
+test_run:switch('default')
+ | ---
+ | - true
+ | ...
+box.space.sync:drop()
+ | ---
+ | ...
+
+-- Teardown.
+test_run:cmd('switch default')
+ | ---
+ | - true
+ | ...
+test_run:cmd('stop server replica')
+ | ---
+ | - true
+ | ...
+test_run:cmd('delete server replica')
+ | ---
+ | - true
+ | ...
+test_run:cleanup_cluster()
+ | ---
+ | ...
+box.schema.user.revoke('guest', 'replication')
+ | ---
+ | ...
+box.cfg{ \
+ replication_synchro_quorum = orig_synchro_quorum, \
+ replication_synchro_timeout = orig_synchro_timeout, \
+}
+ | ---
+ | ...
diff --git a/test/replication/qsync_sync_mode.test.lua b/test/replication/qsync_sync_mode.test.lua
new file mode 100644
index 000000000..706261c10
--- /dev/null
+++ b/test/replication/qsync_sync_mode.test.lua
@@ -0,0 +1,90 @@
+env = require('test_run')
+test_run = env.new()
+engine = test_run:get_cfg('engine')
+fiber = require('fiber')
+math = require('math')
+math.randomseed(os.time())
+
+orig_synchro_quorum = box.cfg.replication_synchro_quorum
+orig_synchro_timeout = box.cfg.replication_synchro_timeout
+
+disable_sync_mode = function() \
+ local s = box.space._space:get(box.space.sync.id) \
+ local new_s = s:update({{'=', 6, {is_sync=false}}}) \
+ box.space._space:replace(new_s) \
+end
+
+enable_sync_mode = function() \
+ local s = box.space._space:get(box.space.sync.id) \
+ local new_s = s:update({{'=', 6, {is_sync=true}}}) \
+ box.space._space:replace(new_s) \
+end
+
+set_random_sync_mode = function() \
+ if (math.random(1, 10) > 5) then \
+ enable_sync_mode() \
+ else \
+ disable_sync_mode() \
+ end \
+end
+
+set_random_quorum = function(n) \
+ box.cfg{replication_synchro_quorum=math.random(1, n)} \
+end
+
+box.schema.user.grant('guest', 'replication')
+
+-- Setup an async cluster with two instances.
+test_run:cmd('create server replica with rpl_master=default,\
+ script="replication/replica.lua"')
+test_run:cmd('start server replica with wait=True, wait_load=True')
+
+-- Write data to a leader, enable and disable sync mode in background in a
+-- loop. Expected no data loss.
+-- Testcase setup.
+_ = box.schema.space.create('sync', {is_sync=true, engine=engine})
+_ = box.space.sync:create_index('pk')
+box.cfg{replication_synchro_quorum=2, replication_synchro_timeout=0.001}
+-- Testcase body.
+for i = 1,10 do \
+ set_random_sync_mode() \
+ if pcall(box.space.sync.insert, box.space.sync, {i}) then \
+ test_run:switch('replica') \
+ test_run:wait_cond(function() return box.space.sync:get{i} ~= nil end) \
+ end \
+ test_run:switch('default') \
+end
+-- Testcase cleanup.
+test_run:switch('default')
+box.space.sync:drop()
+
+-- Write data to a leader, enable and disable sync mode and change quorum value
+-- in background in a loop.
+-- Testcase setup.
+_ = box.schema.space.create('sync', {is_sync=true, engine=engine})
+_ = box.space.sync:create_index('pk')
+box.cfg{replication_synchro_quorum=2, replication_synchro_timeout=0.001}
+-- Testcase body.
+for i = 1,10 do \
+ set_random_sync_mode() \
+ set_random_quorum(5) \
+ if pcall(box.space.sync.insert, box.space.sync, {i}) then \
+ test_run:switch('replica') \
+ test_run:wait_cond(function() return box.space.sync:get{i} ~= nil end) \
+ end \
+ test_run:switch('default') \
+end
+-- Testcase cleanup.
+test_run:switch('default')
+box.space.sync:drop()
+
+-- Teardown.
+test_run:cmd('switch default')
+test_run:cmd('stop server replica')
+test_run:cmd('delete server replica')
+test_run:cleanup_cluster()
+box.schema.user.revoke('guest', 'replication')
+box.cfg{ \
+ replication_synchro_quorum = orig_synchro_quorum, \
+ replication_synchro_timeout = orig_synchro_timeout, \
+}
--
2.26.2
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