diff --git a/src/backend/commands/copyfromparse.c b/src/backend/commands/copyfromparse.c
index baf328b620..996386fdd4 100644
--- a/src/backend/commands/copyfromparse.c
+++ b/src/backend/commands/copyfromparse.c
@@ -269,6 +269,7 @@ CopyGetData(CopyFromState cstate, void *databuf, int minread, int maxread)
 
 			readmessage:
 					HOLD_CANCEL_INTERRUPTS();
+					HOLD_CHECKING_REMOTE_SERVERS_INTERRUPTS();
 					pq_startmsgread();
 					mtype = pq_getbyte();
 					if (mtype == EOF)
@@ -300,6 +301,7 @@ CopyGetData(CopyFromState cstate, void *databuf, int minread, int maxread)
 						ereport(ERROR,
 								(errcode(ERRCODE_CONNECTION_FAILURE),
 								 errmsg("unexpected EOF on client connection with an open transaction")));
+					RESUME_CHECKING_REMOTE_SERVERS_INTERRUPTS();
 					RESUME_CANCEL_INTERRUPTS();
 					/* ... and process it */
 					switch (mtype)
diff --git a/src/backend/foreign/foreign.c b/src/backend/foreign/foreign.c
index 294e22c78c..9779eadf01 100644
--- a/src/backend/foreign/foreign.c
+++ b/src/backend/foreign/foreign.c
@@ -26,7 +26,13 @@
 #include "utils/memutils.h"
 #include "utils/rel.h"
 #include "utils/syscache.h"
+#include "utils/timeout.h"
 
+/* for checking remote servers */
+int remote_servers_connection_check_interval = 0;
+static CheckingRemoteServersCallbackItem *fdw_callbacks = NULL;
+/* counter for keeping re-entrancy */
+static int timeout_counter = 0;
 
 /*
  * GetForeignDataWrapper -	look up the foreign-data wrapper by OID.
@@ -836,3 +842,111 @@ GetExistingLocalJoinPath(RelOptInfo *joinrel)
 	}
 	return NULL;
 }
+
+/*
+ * Register callbacks for checking remote servers.
+ *
+ * This function is intended for use by FDW extensions.
+ * The checking timeout will be fired after registering the first callback.
+ */
+CheckingRemoteServersCallbackItem *
+RegisterCheckingRemoteServersCallback(CheckingRemoteServersCallback callback,
+									  void *arg)
+{
+	CheckingRemoteServersCallbackItem *item;
+
+	item = (CheckingRemoteServersCallbackItem *)
+			MemoryContextAlloc(TopMemoryContext,
+							   sizeof(CheckingRemoteServersCallbackItem));
+	item->callback = callback;
+	item->counter = 0;
+	item->arg = arg;
+	item->next = fdw_callbacks;
+	fdw_callbacks = item;
+
+	return item;
+}
+
+/*
+ * Call callbacks for checking remote servers if needed.
+ * This retruns the downed server, or NULL if all servers are good.
+ */
+ForeignServer *
+CallCheckingRemoteServersCallbacks(void)
+{
+	CheckingRemoteServersCallbackItem *item;
+	ForeignServer *server = NULL;
+
+	for (item = fdw_callbacks; item; item = item->next)
+	{
+		if (item->counter > 0)
+		{
+			server = item->callback(item->arg);
+			if (server != NULL)
+				break;
+		}
+	}
+
+	return server;
+}
+
+/*
+ * Increment counters, and enable timeout if it has been not started yet.
+ */
+int
+TryEnableRemoteServerCheckingTimeout(CheckingRemoteServersCallbackItem *item)
+{
+	timeout_counter++;
+	item->counter++;
+
+	if (remote_servers_connection_check_interval > 0 &&
+		!get_timeout_active(CHECKING_REMOTE_SERVERS_TIMEOUT))
+		enable_timeout_after(CHECKING_REMOTE_SERVERS_TIMEOUT,
+							 remote_servers_connection_check_interval);
+
+	return timeout_counter;
+}
+
+/*
+ * Decrement counters, and disable timeout if it is no more needed.
+ *
+ * This functions must be called after TryEnableRemoteServerCheckingTimeout().
+ */
+int
+TryDisableRemoteServerCheckingTimeout(CheckingRemoteServersCallbackItem *item)
+{
+	Assert(timeout_counter > 0 && item->counter > 0);
+	timeout_counter--;
+	item->counter--;
+
+	if (timeout_counter == 0 &&
+		get_timeout_active(CHECKING_REMOTE_SERVERS_TIMEOUT))
+		disable_timeout(CHECKING_REMOTE_SERVERS_TIMEOUT, false);
+
+	return timeout_counter;
+}
+
+void
+assign_remote_servers_connection_check_interval(int newval,
+												void *extra)
+{
+	/* Quick return if we don't have any callbacks */
+	if (fdw_callbacks == NULL)
+		return;
+
+	if (get_timeout_active(CHECKING_REMOTE_SERVERS_TIMEOUT))
+	{
+		if (newval == 0)
+			disable_timeout(CHECKING_REMOTE_SERVERS_TIMEOUT, false);
+
+		/*
+		 * we don't have to do anything because
+		 * new value will be used in ProcessInterrupts().
+		 */
+		return;
+	}
+
+	/* Start timeout if anyone wants to */
+	if (newval > 0 && timeout_counter > 0)
+		enable_timeout_after(CHECKING_REMOTE_SERVERS_TIMEOUT, newval);
+}
\ No newline at end of file
diff --git a/src/backend/tcop/postgres.c b/src/backend/tcop/postgres.c
index fda2e9360e..b99fcf7b48 100644
--- a/src/backend/tcop/postgres.c
+++ b/src/backend/tcop/postgres.c
@@ -44,6 +44,7 @@
 #include "commands/prepare.h"
 #include "common/pg_prng.h"
 #include "executor/spi.h"
+#include "foreign/foreign.h"
 #include "jit/jit.h"
 #include "libpq/libpq.h"
 #include "libpq/pqformat.h"
@@ -350,6 +351,7 @@ SocketBackend(StringInfo inBuf)
 	 * Get message type code from the frontend.
 	 */
 	HOLD_CANCEL_INTERRUPTS();
+	HOLD_CHECKING_REMOTE_SERVERS_INTERRUPTS();
 	pq_startmsgread();
 	qtype = pq_getbyte();
 
@@ -456,6 +458,7 @@ SocketBackend(StringInfo inBuf)
 	 */
 	if (pq_getmessage(inBuf, maxmsglen))
 		return EOF;				/* suitable message already logged */
+	RESUME_CHECKING_REMOTE_SERVERS_INTERRUPTS();
 	RESUME_CANCEL_INTERRUPTS();
 
 	return qtype;
@@ -3225,6 +3228,39 @@ ProcessInterrupts(void)
 				 errmsg("connection to client lost")));
 	}
 
+	if (CheckingRemoteServersTimeoutPending)
+	{
+		if (CheckingRemoteServersHoldoffCount != 0 || DoingCommandRead)
+		{
+			/*
+			 * Skip checking foreign servers while reading messages or commands.
+			 */
+			InterruptPending = true;
+		}
+		else
+		{
+			CheckingRemoteServersTimeoutPending = false;
+
+			/* Check remote servers and re-arm, if still configured. */
+			if (remote_servers_connection_check_interval > 0)
+			{
+				ForeignServer *downedServer = CallCheckingRemoteServersCallbacks();
+				if (downedServer != NULL)
+				{
+					LockErrorCleanup();
+					ereport(ERROR,
+							errcode(ERRCODE_CONNECTION_FAILURE),
+							errmsg("foreign server \"%s\" disconnected due to the health-check failure",
+								   downedServer->servername),
+							errdetail("Foreign server might be down."),
+							errhint("Please check the server and network health."));
+				}
+				enable_timeout_after(CHECKING_REMOTE_SERVERS_TIMEOUT,
+									 remote_servers_connection_check_interval);
+			}
+		}
+	}
+
 	/*
 	 * If a recovery conflict happens while we are waiting for input from the
 	 * client, the client is presumably just sitting idle in a transaction,
diff --git a/src/backend/utils/init/globals.c b/src/backend/utils/init/globals.c
index c26a1a73df..7efa9cff84 100644
--- a/src/backend/utils/init/globals.c
+++ b/src/backend/utils/init/globals.c
@@ -36,9 +36,11 @@ volatile sig_atomic_t IdleInTransactionSessionTimeoutPending = false;
 volatile sig_atomic_t IdleSessionTimeoutPending = false;
 volatile sig_atomic_t ProcSignalBarrierPending = false;
 volatile sig_atomic_t LogMemoryContextPending = false;
+volatile sig_atomic_t CheckingRemoteServersTimeoutPending = false;
 volatile uint32 InterruptHoldoffCount = 0;
 volatile uint32 QueryCancelHoldoffCount = 0;
 volatile uint32 CritSectionCount = 0;
+volatile uint32 CheckingRemoteServersHoldoffCount = 0;
 
 int			MyProcPid;
 pg_time_t	MyStartTime;
diff --git a/src/backend/utils/init/postinit.c b/src/backend/utils/init/postinit.c
index 5b9ed2f6f5..9b0b4ddd58 100644
--- a/src/backend/utils/init/postinit.c
+++ b/src/backend/utils/init/postinit.c
@@ -75,6 +75,7 @@ static void LockTimeoutHandler(void);
 static void IdleInTransactionSessionTimeoutHandler(void);
 static void IdleSessionTimeoutHandler(void);
 static void ClientCheckTimeoutHandler(void);
+static void CheckingRemoteServersTimeoutHandler(void);
 static bool ThereIsAtLeastOneRole(void);
 static void process_startup_options(Port *port, bool am_superuser);
 static void process_settings(Oid databaseid, Oid roleid);
@@ -628,6 +629,7 @@ InitPostgres(const char *in_dbname, Oid dboid, const char *username,
 						IdleInTransactionSessionTimeoutHandler);
 		RegisterTimeout(IDLE_SESSION_TIMEOUT, IdleSessionTimeoutHandler);
 		RegisterTimeout(CLIENT_CONNECTION_CHECK_TIMEOUT, ClientCheckTimeoutHandler);
+		RegisterTimeout(CHECKING_REMOTE_SERVERS_TIMEOUT, CheckingRemoteServersTimeoutHandler);
 	}
 
 	/*
@@ -1246,6 +1248,14 @@ ClientCheckTimeoutHandler(void)
 	SetLatch(MyLatch);
 }
 
+static void
+CheckingRemoteServersTimeoutHandler(void)
+{
+	CheckingRemoteServersTimeoutPending = true;
+	InterruptPending = true;
+	SetLatch(MyLatch);
+}
+
 /*
  * Returns true if at least one role is defined in this database cluster.
  */
diff --git a/src/backend/utils/misc/guc.c b/src/backend/utils/misc/guc.c
index b3fd42e0f1..6dfc171448 100644
--- a/src/backend/utils/misc/guc.c
+++ b/src/backend/utils/misc/guc.c
@@ -52,6 +52,7 @@
 #include "commands/vacuum.h"
 #include "commands/variable.h"
 #include "common/string.h"
+#include "foreign/foreign.h"
 #include "funcapi.h"
 #include "jit/jit.h"
 #include "libpq/auth.h"
@@ -106,6 +107,7 @@
 #include "utils/queryjumble.h"
 #include "utils/rls.h"
 #include "utils/snapmgr.h"
+#include "utils/timeout.h"
 #include "utils/tzparser.h"
 #include "utils/inval.h"
 #include "utils/varlena.h"
@@ -3600,6 +3602,18 @@ static struct config_int ConfigureNamesInt[] =
 		NULL, NULL, NULL
 	},
 
+
+	{
+		{"remote_servers_connection_check_interval", PGC_USERSET, CONN_AUTH_SETTINGS,
+			gettext_noop("Sets the time interval between checks for disconnection of remote servers."),
+			NULL,
+			GUC_UNIT_MS
+		},
+		&remote_servers_connection_check_interval,
+		0, 0, INT_MAX,
+		NULL, assign_remote_servers_connection_check_interval, NULL
+	},
+
 	/* End-of-list marker */
 	{
 		{NULL, 0, 0, NULL, NULL}, NULL, 0, 0, 0, NULL, NULL, NULL
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 817d5f5324..b97dc30514 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -90,6 +90,10 @@
 					# disconnection while running queries;
 					# 0 for never
 
+#remote_servers_connection_check_interval = 0	# time between time between checks for
+					# foreign server disconnection;
+					# 0 for never
+
 # - Authentication -
 
 #authentication_timeout = 1min		# 1s-600s
diff --git a/src/include/foreign/foreign.h b/src/include/foreign/foreign.h
index 75538110fc..922e63922b 100644
--- a/src/include/foreign/foreign.h
+++ b/src/include/foreign/foreign.h
@@ -81,4 +81,26 @@ extern List *GetForeignColumnOptions(Oid relid, AttrNumber attnum);
 extern Oid	get_foreign_data_wrapper_oid(const char *fdwname, bool missing_ok);
 extern Oid	get_foreign_server_oid(const char *servername, bool missing_ok);
 
+
+/* functions and variables for fdw checking. */
+typedef ForeignServer* (*CheckingRemoteServersCallback) (void *arg);
+typedef struct CheckingRemoteServersCallbackItem
+{
+	struct CheckingRemoteServersCallbackItem *next;
+	CheckingRemoteServersCallback callback;
+	int			counter;
+	void		*arg;
+} CheckingRemoteServersCallbackItem;
+
+extern CheckingRemoteServersCallbackItem *
+RegisterCheckingRemoteServersCallback(CheckingRemoteServersCallback callback,
+									  void *arg);
+extern ForeignServer *CallCheckingRemoteServersCallbacks(void);
+
+extern int TryEnableRemoteServerCheckingTimeout(CheckingRemoteServersCallbackItem *item);
+extern int TryDisableRemoteServerCheckingTimeout(CheckingRemoteServersCallbackItem *item);
+
+extern int remote_servers_connection_check_interval;
+extern void assign_remote_servers_connection_check_interval(int newval,
+															void *extra);
 #endif							/* FOREIGN_H */
diff --git a/src/include/miscadmin.h b/src/include/miscadmin.h
index 02276d3edd..0319fe1605 100644
--- a/src/include/miscadmin.h
+++ b/src/include/miscadmin.h
@@ -98,10 +98,13 @@ extern PGDLLIMPORT volatile sig_atomic_t LogMemoryContextPending;
 extern PGDLLIMPORT volatile sig_atomic_t CheckClientConnectionPending;
 extern PGDLLIMPORT volatile sig_atomic_t ClientConnectionLost;
 
+extern PGDLLIMPORT volatile sig_atomic_t CheckingRemoteServersTimeoutPending;
+
 /* these are marked volatile because they are examined by signal handlers: */
 extern PGDLLIMPORT volatile uint32 InterruptHoldoffCount;
 extern PGDLLIMPORT volatile uint32 QueryCancelHoldoffCount;
 extern PGDLLIMPORT volatile uint32 CritSectionCount;
+extern PGDLLIMPORT volatile uint32 CheckingRemoteServersHoldoffCount;
 
 /* in tcop/postgres.c */
 extern void ProcessInterrupts(void);
@@ -126,7 +129,7 @@ do { \
 /* Is ProcessInterrupts() guaranteed to clear InterruptPending? */
 #define INTERRUPTS_CAN_BE_PROCESSED() \
 	(InterruptHoldoffCount == 0 && CritSectionCount == 0 && \
-	 QueryCancelHoldoffCount == 0)
+	 QueryCancelHoldoffCount == 0 && CheckingRemoteServersHoldoffCount == 0)
 
 #define HOLD_INTERRUPTS()  (InterruptHoldoffCount++)
 
@@ -152,6 +155,13 @@ do { \
 	CritSectionCount--; \
 } while(0)
 
+#define HOLD_CHECKING_REMOTE_SERVERS_INTERRUPTS()  (CheckingRemoteServersHoldoffCount++)
+
+#define RESUME_CHECKING_REMOTE_SERVERS_INTERRUPTS() \
+do { \
+	Assert(CheckingRemoteServersHoldoffCount > 0); \
+	CheckingRemoteServersHoldoffCount--; \
+} while(0)
 
 /*****************************************************************************
  *	  globals.h --															 *
diff --git a/src/include/utils/timeout.h b/src/include/utils/timeout.h
index 099f91c61d..7f02a8b491 100644
--- a/src/include/utils/timeout.h
+++ b/src/include/utils/timeout.h
@@ -34,6 +34,7 @@ typedef enum TimeoutId
 	IDLE_SESSION_TIMEOUT,
 	CLIENT_CONNECTION_CHECK_TIMEOUT,
 	STARTUP_PROGRESS_TIMEOUT,
+	CHECKING_REMOTE_SERVERS_TIMEOUT,
 	/* First user-definable timeout reason */
 	USER_TIMEOUT,
 	/* Maximum number of timeout reasons */