Failing test related to AOF rewrite buffers

1 files changed, 35 insertions, 0 deletions

diff --git a/tests/integration/aof-race.tcl b/tests/integration/aof-race.tcl
new file mode 100644
index 000000000..207f20739
--- /dev/null
+++ b/tests/integration/aof-race.tcl
@@ -0,0 +1,35 @@
+set defaults { appendonly {yes} appendfilename {appendonly.aof} }
+set server_path [tmpdir server.aof]
+set aof_path "$server_path/appendonly.aof"
+
+proc start_server_aof {overrides code} {
+    upvar defaults defaults srv srv server_path server_path
+    set config [concat $defaults $overrides]
+    start_server [list overrides $config] $code
+}
+
+tags {"aof"} {
+    # Specific test for a regression where internal buffers were not properly
+    # cleaned after a child responsible for an AOF rewrite exited. This buffer
+    # was subsequently appended to the new AOF, resulting in duplicate commands.
+    start_server_aof [list dir $server_path] {
+        set client [redis [srv host] [srv port]]
+        set bench [open "|src/redis-benchmark -q -p [srv port] -c 20 -n 20000 incr foo" "r+"]
+        after 100
+
+        # Benchmark should be running by now: start background rewrite
+        $client bgrewriteaof
+
+        # Read until benchmark pipe reaches EOF
+        while {[string length [read $bench]] > 0} {}
+
+        # Check contents of foo
+        assert_equal 20000 [$client get foo]
+    }
+
+    # Restart server to replay AOF
+    start_server_aof [list dir $server_path] {
+        set client [redis [srv host] [srv port]]
+        assert_equal 20000 [$client get foo]
+    }
+}