[PATCH 01/13] vinyl: fix master crash on replica join failure

[Vladimir Davydov <vdavydov.dev@gmail.com>]

This patch fixes a trivial error on vy_send_range() error path which
results in a master crash in case a file needed to join a replica is
missing or corrupted.

See #3708
---
 src/box/vinyl.c            |  6 +++---
 test/vinyl/errinj.result   | 51 ++++++++++++++++++++++++++++++++++++++++++++++
 test/vinyl/errinj.test.lua | 18 ++++++++++++++++
 3 files changed, 72 insertions(+), 3 deletions(-)

diff --git a/src/box/vinyl.c b/src/box/vinyl.c
index 2d0360c1..0cd7b188 100644
--- a/src/box/vinyl.c
+++ b/src/box/vinyl.c
@@ -2983,13 +2983,13 @@ vy_send_range(struct vy_join_ctx *ctx,
 		       vy_send_range_f, NULL, TIMEOUT_INFINITY);
 	fiber_set_cancellable(cancellable);
 
+out_delete_wi:
+	ctx->wi->iface->close(ctx->wi);
+	ctx->wi = NULL;
 out_delete_slices:
 	rlist_foreach_entry_safe(slice, &ctx->slices, in_join, tmp)
 		vy_slice_delete(slice);
 	rlist_create(&ctx->slices);
-out_delete_wi:
-	ctx->wi->iface->close(ctx->wi);
-	ctx->wi = NULL;
 out:
 	return rc;
 }
diff --git a/test/vinyl/errinj.result b/test/vinyl/errinj.result
index b4dc5b69..63d14c61 100644
--- a/test/vinyl/errinj.result
+++ b/test/vinyl/errinj.result
@@ -2232,3 +2232,54 @@ test_run:cmd("clear filter")
 ---
 - true
 ...
+--
+-- Check that an instance doesn't crash if a run file needed for
+-- joining a replica is corrupted (see gh-3708).
+--
+s = box.schema.space.create('test', {engine = 'vinyl'})
+---
+...
+_ = s:create_index('pk')
+---
+...
+s:replace{1, 2, 3}
+---
+- [1, 2, 3]
+...
+box.snapshot()
+---
+- ok
+...
+box.schema.user.grant('guest', 'replication')
+---
+...
+errinj.set('ERRINJ_VYRUN_INDEX_GARBAGE', true)
+---
+- ok
+...
+test_run:cmd("create server replica with rpl_master=default, script='replication/replica.lua'")
+---
+- true
+...
+test_run:cmd("start server replica with crash_expected=True")
+---
+- false
+...
+test_run:cmd("cleanup server replica")
+---
+- true
+...
+test_run:cmd("delete server replica")
+---
+- true
+...
+errinj.set('ERRINJ_VYRUN_INDEX_GARBAGE', false)
+---
+- ok
+...
+box.schema.user.revoke('guest', 'replication')
+---
+...
+s:drop()
+---
+...
diff --git a/test/vinyl/errinj.test.lua b/test/vinyl/errinj.test.lua
index e82b6aee..b6f697d3 100644
--- a/test/vinyl/errinj.test.lua
+++ b/test/vinyl/errinj.test.lua
@@ -882,3 +882,21 @@ i:stat().disk.compact.queue -- none
 s:drop()
 
 test_run:cmd("clear filter")
+
+--
+-- Check that an instance doesn't crash if a run file needed for
+-- joining a replica is corrupted (see gh-3708).
+--
+s = box.schema.space.create('test', {engine = 'vinyl'})
+_ = s:create_index('pk')
+s:replace{1, 2, 3}
+box.snapshot()
+box.schema.user.grant('guest', 'replication')
+errinj.set('ERRINJ_VYRUN_INDEX_GARBAGE', true)
+test_run:cmd("create server replica with rpl_master=default, script='replication/replica.lua'")
+test_run:cmd("start server replica with crash_expected=True")
+test_run:cmd("cleanup server replica")
+test_run:cmd("delete server replica")
+errinj.set('ERRINJ_VYRUN_INDEX_GARBAGE', false)
+box.schema.user.revoke('guest', 'replication')
+s:drop()
-- 
2.11.0