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Enable server-side keepalive pings

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pull/9902/head
Yuchen Zeng 8 years ago
parent c18d4b39c8
commit 5f89996e69
4 changed files with 71 additions and 35 deletions
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  1. 13
      include/grpc/impl/codegen/grpc_types.h
  2. 66
      src/core/ext/transport/chttp2/transport/chttp2_transport.c
  3. 3
      src/core/ext/transport/chttp2/transport/internal.h
  4. 4
      test/core/end2end/tests/keepalive_timeout.c

13
include/grpc/impl/codegen/grpc_types.h
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@ -214,12 +214,13 @@ typedef struct {
/** How much data are we willing to queue up per stream if
GRPC_WRITE_BUFFER_HINT is set? This is an upper bound */
#define GRPC_ARG_HTTP2_WRITE_BUFFER_SIZE "grpc.http2.write_buffer_size"
/** After a duration of this time the client pings the server to see if the
transport is still alive. Int valued, seconds. */
#define GRPC_ARG_CLIENT_KEEPALIVE_TIME_MS "grpc.client_keepalive_time_ms"
/** After waiting for a duration of this time, if the client does not receive
the ping ack, it will close the transport. Int valued, seconds. */
#define GRPC_ARG_CLIENT_KEEPALIVE_TIMEOUT_MS "grpc.client_keepalive_timeout_ms"
/** After a duration of this time the client/server pings its peer to see if the
transport is still alive. Int valued, milliseconds. */
#define GRPC_ARG_KEEPALIVE_TIME_MS "grpc.keepalive_time_ms"
/** After waiting for a duration of this time, if the keepalive ping sender does
not receive the ping ack, it will close the transport. Int valued,
milliseconds. */
#define GRPC_ARG_KEEPALIVE_TIMEOUT_MS "grpc.keepalive_timeout_ms"
/** Is it permissible to send keepalive pings without any outstanding streams.
Int valued, 0(false)/1(true). */
#define GRPC_ARG_KEEPALIVE_PERMIT_WITHOUT_CALLS \

66
src/core/ext/transport/chttp2/transport/chttp2_transport.c
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@ -70,13 +70,19 @@
#define DEFAULT_MAX_HEADER_LIST_SIZE (16 * 1024)
#define DEFAULT_CLIENT_KEEPALIVE_TIME_MS INT_MAX
#define DEFAULT_CLIENT_KEEPALIVE_TIMEOUT_MS 20000
#define DEFAULT_CLIENT_KEEPALIVE_TIMEOUT_MS 20000 /* 20 seconds */
#define DEFAULT_SERVER_KEEPALIVE_TIME_MS 7200000 /* 2 hours */
#define DEFAULT_SERVER_KEEPALIVE_TIMEOUT_MS 20000 /* 20 seconds */
#define DEFAULT_KEEPALIVE_PERMIT_WITHOUT_CALLS false
static int g_default_client_keepalive_time_ms =
DEFAULT_CLIENT_KEEPALIVE_TIME_MS;
static int g_default_client_keepalive_timeout_ms =
DEFAULT_CLIENT_KEEPALIVE_TIMEOUT_MS;
static int g_default_server_keepalive_time_ms =
DEFAULT_SERVER_KEEPALIVE_TIME_MS;
static int g_default_server_keepalive_timeout_ms =
DEFAULT_SERVER_KEEPALIVE_TIMEOUT_MS;
static bool g_default_keepalive_permit_without_calls =
DEFAULT_KEEPALIVE_PERMIT_WITHOUT_CALLS;
@ -359,7 +365,8 @@ static void init_transport(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t,
DEFAULT_MIN_PING_INTERVAL_WITHOUT_DATA_MS, GPR_TIMESPAN),
};
/* client-side keepalive setting */
/* Keepalive setting */
if (t->is_client) {
t->keepalive_time =
g_default_client_keepalive_time_ms == INT_MAX
? gpr_inf_future(GPR_TIMESPAN)
@ -370,6 +377,18 @@ static void init_transport(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t,
? gpr_inf_future(GPR_TIMESPAN)
: gpr_time_from_millis(g_default_client_keepalive_timeout_ms,
GPR_TIMESPAN);
} else {
t->keepalive_time =
g_default_server_keepalive_time_ms == INT_MAX
? gpr_inf_future(GPR_TIMESPAN)
: gpr_time_from_millis(g_default_server_keepalive_time_ms,
GPR_TIMESPAN);
t->keepalive_timeout =
g_default_server_keepalive_timeout_ms == INT_MAX
? gpr_inf_future(GPR_TIMESPAN)
: gpr_time_from_millis(g_default_server_keepalive_timeout_ms,
GPR_TIMESPAN);
}
t->keepalive_permit_without_calls = g_default_keepalive_permit_without_calls;
if (channel_args) {
@ -434,20 +453,24 @@ static void init_transport(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t,
t->enable_bdp_probe = grpc_channel_arg_get_integer(
&channel_args->args[i], (grpc_integer_options){1, 0, 1});
} else if (0 == strcmp(channel_args->args[i].key,
GRPC_ARG_CLIENT_KEEPALIVE_TIME_MS)) {
GRPC_ARG_KEEPALIVE_TIME_MS)) {
const int value = grpc_channel_arg_get_integer(
&channel_args->args[i],
(grpc_integer_options){g_default_client_keepalive_time_ms, 1,
INT_MAX});
(grpc_integer_options){t->is_client
? g_default_client_keepalive_time_ms
: g_default_server_keepalive_time_ms,
1, INT_MAX});
t->keepalive_time = value == INT_MAX
? gpr_inf_future(GPR_TIMESPAN)
: gpr_time_from_millis(value, GPR_TIMESPAN);
} else if (0 == strcmp(channel_args->args[i].key,
GRPC_ARG_CLIENT_KEEPALIVE_TIMEOUT_MS)) {
GRPC_ARG_KEEPALIVE_TIMEOUT_MS)) {
const int value = grpc_channel_arg_get_integer(
&channel_args->args[i],
(grpc_integer_options){g_default_client_keepalive_timeout_ms, 0,
INT_MAX});
(grpc_integer_options){t->is_client
? g_default_client_keepalive_timeout_ms
: g_default_server_keepalive_timeout_ms,
0, INT_MAX});
t->keepalive_timeout = value == INT_MAX
? gpr_inf_future(GPR_TIMESPAN)
: gpr_time_from_millis(value, GPR_TIMESPAN);
@ -511,8 +534,8 @@ static void init_transport(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t,
t->ping_recv_state.last_ping_recv_time = gpr_inf_past(GPR_CLOCK_MONOTONIC);
t->ping_recv_state.ping_strikes = 0;
/* Start client-side keepalive pings */
if (t->is_client) {
/* Start keepalive pings */
if (gpr_time_cmp(t->keepalive_time, gpr_inf_future(GPR_TIMESPAN)) != 0) {
t->keepalive_state = GRPC_CHTTP2_KEEPALIVE_STATE_WAITING;
GRPC_CHTTP2_REF_TRANSPORT(t, "init keepalive ping");
grpc_timer_init(
@ -2170,21 +2193,32 @@ static void finish_bdp_ping_locked(grpc_exec_ctx *exec_ctx, void *tp,
GRPC_CHTTP2_UNREF_TRANSPORT(exec_ctx, t, "bdp_ping");
}
void grpc_chttp2_config_default_keepalive_args(grpc_channel_args *args) {
void grpc_chttp2_config_default_keepalive_args(grpc_channel_args *args,
bool is_client) {
size_t i;
if (args) {
for (i = 0; i < args->num_args; i++) {
if (0 == strcmp(args->args[i].key, GRPC_ARG_CLIENT_KEEPALIVE_TIME_MS)) {
g_default_client_keepalive_time_ms = grpc_channel_arg_get_integer(
if (0 == strcmp(args->args[i].key, GRPC_ARG_KEEPALIVE_TIME_MS)) {
const int value = grpc_channel_arg_get_integer(
&args->args[i],
(grpc_integer_options){g_default_client_keepalive_time_ms, 1,
INT_MAX});
} else if (0 == strcmp(args->args[i].key,
GRPC_ARG_CLIENT_KEEPALIVE_TIMEOUT_MS)) {
g_default_client_keepalive_timeout_ms = grpc_channel_arg_get_integer(
if (is_client) {
g_default_client_keepalive_time_ms = value;
} else {
g_default_server_keepalive_time_ms = value;
}
} else if (0 ==
strcmp(args->args[i].key, GRPC_ARG_KEEPALIVE_TIMEOUT_MS)) {
const int value = grpc_channel_arg_get_integer(
&args->args[i],
(grpc_integer_options){g_default_client_keepalive_timeout_ms, 0,
INT_MAX});
if (is_client) {
g_default_client_keepalive_timeout_ms = value;
} else {
g_default_server_keepalive_timeout_ms = value;
}
} else if (0 == strcmp(args->args[i].key,
GRPC_ARG_KEEPALIVE_PERMIT_WITHOUT_CALLS)) {
g_default_keepalive_permit_without_calls =

3
src/core/ext/transport/chttp2/transport/internal.h
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@ -846,6 +846,7 @@ uint32_t grpc_chttp2_target_incoming_window(grpc_chttp2_transport *t);
/** Set the default keepalive configurations, must only be called at
initialization */
void grpc_chttp2_config_default_keepalive_args(grpc_channel_args *args);
void grpc_chttp2_config_default_keepalive_args(grpc_channel_args *args,
bool is_client);
#endif /* GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_INTERNAL_H */

4
test/core/end2end/tests/keepalive_timeout.c
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@ -111,10 +111,10 @@ static void test_keepalive_timeout(grpc_end2end_test_config config) {
gpr_timespec deadline = five_seconds_time();
grpc_arg keepalive_args[] = {{.type = GRPC_ARG_INTEGER,
.key = GRPC_ARG_CLIENT_KEEPALIVE_TIME_MS,
.key = GRPC_ARG_KEEPALIVE_TIME_MS,
.value.integer = 1500},
{.type = GRPC_ARG_INTEGER,
.key = GRPC_ARG_CLIENT_KEEPALIVE_TIMEOUT_MS,
.key = GRPC_ARG_KEEPALIVE_TIMEOUT_MS,
.value.integer = 0},
{.type = GRPC_ARG_INTEGER,
.key = GRPC_ARG_HTTP2_BDP_PROBE,

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