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[PATCH 3/4] migration-test: Make sure that multifd and cancel works
From: |
Juan Quintela |
Subject: |
[PATCH 3/4] migration-test: Make sure that multifd and cancel works |
Date: |
Wed, 18 Dec 2019 06:04:38 +0100 |
Test that this sequerce works:
- launch source
- launch target
- start migration
- cancel migration
- relaunch target
- do migration again
Signed-off-by: Juan Quintela <address@hidden>
---
tests/migration-test.c | 108 ++++++++++++++++++++++++++++++++++++++++-
1 file changed, 107 insertions(+), 1 deletion(-)
diff --git a/tests/migration-test.c b/tests/migration-test.c
index 7588f50b9b..1c93b3e5bc 100644
--- a/tests/migration-test.c
+++ b/tests/migration-test.c
@@ -527,6 +527,14 @@ static void migrate_recover(QTestState *who, const char
*uri)
qobject_unref(rsp);
}
+static void migrate_cancel(QTestState *who)
+{
+ QDict *rsp;
+
+ rsp = wait_command(who, "{ 'execute': 'migrate_cancel' }");
+ qobject_unref(rsp);
+}
+
static void migrate_set_capability(QTestState *who, const char *capability,
bool value)
{
@@ -583,6 +591,8 @@ static void migrate_postcopy_start(QTestState *from,
QTestState *to)
typedef struct {
bool hide_stderr;
bool use_shmem;
+ /* only launch the target process */
+ bool only_target;
char *opts_source;
char *opts_target;
} MigrateStart;
@@ -704,7 +714,9 @@ static int test_migrate_start(QTestState **from, QTestState
**to,
arch_source, shmem_opts, args->opts_source,
ignore_stderr);
g_free(arch_source);
- *from = qtest_init(cmd_source);
+ if (!args->only_target) {
+ *from = qtest_init(cmd_source);
+ }
g_free(cmd_source);
cmd_target = g_strdup_printf("-machine %saccel=kvm:tcg%s "
@@ -1470,6 +1482,99 @@ static void test_multifd_tcp_zstd(void)
test_multifd_tcp("zstd");
}
+/*
+ * This test does:
+ * source target
+ * migrate_incoming
+ * migrate
+ * migrate_cancel
+ * launch another target
+ * migrate
+ *
+ * And see that it works
+ */
+
+static void test_multifd_tcp_cancel(void)
+{
+ MigrateStart *args = migrate_start_new();
+ QTestState *from, *to;
+ QDict *rsp;
+ char *uri;
+
+ if (test_migrate_start(&from, &to, "defer", args)) {
+ return;
+ }
+
+ /*
+ * We want to pick a speed slow enough that the test completes
+ * quickly, but that it doesn't complete precopy even on a slow
+ * machine, so also set the downtime.
+ */
+ /* 1 ms should make it not converge*/
+ migrate_set_parameter_int(from, "downtime-limit", 1);
+ /* 1GB/s */
+ migrate_set_parameter_int(from, "max-bandwidth", 1000000000);
+
+ migrate_set_parameter_int(from, "multifd-channels", 16);
+ migrate_set_parameter_int(to, "multifd-channels", 16);
+
+ migrate_set_capability(from, "multifd", "true");
+ migrate_set_capability(to, "multifd", "true");
+
+ /* Start incoming migration from the 1st socket */
+ rsp = wait_command(to, "{ 'execute': 'migrate-incoming',"
+ " 'arguments': { 'uri': 'tcp:127.0.0.1:0' }}");
+ qobject_unref(rsp);
+
+ /* Wait for the first serial output from the source */
+ wait_for_serial("src_serial");
+
+ uri = migrate_get_socket_address(to, "socket-address");
+
+ migrate(from, uri, "{}");
+
+ wait_for_migration_pass(from);
+
+ printf("before cancel\n");
+ migrate_cancel(from);
+ printf("after cancel\n");
+
+ args = migrate_start_new();
+ args->only_target = true;
+
+ if (test_migrate_start(&from, &to, "defer", args)) {
+ return;
+ }
+
+ migrate_set_parameter_int(to, "multifd-channels", 16);
+
+ migrate_set_capability(to, "multifd", "true");
+
+ /* Start incoming migration from the 1st socket */
+ rsp = wait_command(to, "{ 'execute': 'migrate-incoming',"
+ " 'arguments': { 'uri': 'tcp:127.0.0.1:0' }}");
+ qobject_unref(rsp);
+
+ /* 300ms it should converge */
+ migrate_set_parameter_int(from, "downtime-limit", 600);
+
+ uri = migrate_get_socket_address(to, "socket-address");
+
+ migrate(from, uri, "{}");
+
+ wait_for_migration_pass(from);
+
+ if (!got_stop) {
+ qtest_qmp_eventwait(from, "STOP");
+ }
+ qtest_qmp_eventwait(to, "RESUME");
+
+ wait_for_serial("dest_serial");
+ wait_for_migration_complete(from);
+ test_migrate_end(from, to, true);
+ free(uri);
+}
+
int main(int argc, char **argv)
{
char template[] = "/tmp/migration-test-XXXXXX";
@@ -1537,6 +1642,7 @@ int main(int argc, char **argv)
qtest_add_func("/migration/multifd/tcp/none", test_multifd_tcp_none);
qtest_add_func("/migration/multifd/tcp/zlib", test_multifd_tcp_zlib);
qtest_add_func("/migration/multifd/tcp/zstd", test_multifd_tcp_zstd);
+ qtest_add_func("/migration/multifd/tcp/cancel", test_multifd_tcp_cancel);
ret = g_test_run();
--
2.23.0