My initial comments..
1. Can avoid peer discovery waiting state to certain fixed period
by defining the spare-count in xml. What do you say..
2. What is the idea behind introducing QUIESCING state when it is
not used?
Regards,
Ramesh.
On 2/29/2016 9:09 PM, Anders Widell wrote:
> Makefile.am | 3 +-
> opensaf.spec.in | 1 +
> osaf/services/infrastructure/rde/Makefile.am | 3 +-
> osaf/services/infrastructure/rde/config/rde.conf | 3 +
> osaf/services/infrastructure/rde/include/Makefile.am | 3 +-
> osaf/services/infrastructure/rde/include/rde_amf.h | 5 +
> osaf/services/infrastructure/rde/include/rde_cb.h | 12 +-
> osaf/services/infrastructure/rde/include/rde_rda.h | 3 +
> osaf/services/infrastructure/rde/include/role.h | 60 +++
> osaf/services/infrastructure/rde/rde_amf.cc | 42 +-
> osaf/services/infrastructure/rde/rde_main.cc | 323
> +++++-------------
> osaf/services/infrastructure/rde/rde_mds.cc | 76 ++-
> osaf/services/infrastructure/rde/rde_rda.cc | 7 +-
> osaf/services/infrastructure/rde/role.cc | 144 ++++++++
> scripts/opensaf_sc_active | 30 +
> 15 files changed, 439 insertions(+), 276 deletions(-)
>
>
> Without changing the network protocol, generalize the role selection algorithm
> used by RDE so that it works with more than two nodes. Nodes are now initially
> given the QUIESCED role. When there are no ACTIVE or STANDBY nodes, the CLM
> node
> agent will initiate an election of a new ACTIVE node. RDE on the winning node
> will set its role to ACTIVE.
>
> There is now also a new customizable script which is executed on a node before
> it becomes ACTIVE. The purpose of this script is to perform necessary
> preparations (if any) needed before a node can take on the ACTIVE role. For
> example, shared files system may have to be mounted.
>
> diff --git a/Makefile.am b/Makefile.am
> --- a/Makefile.am
> +++ b/Makefile.am
> @@ -187,7 +187,8 @@ nodist_pkgsysconf_DATA = \
> osaf_execbindir = $(pkglibdir)
> dist_osaf_execbin_SCRIPTS = \
> $(top_srcdir)/scripts/opensaf_reboot \
> - $(top_srcdir)/scripts/opensaf_scale_out
> + $(top_srcdir)/scripts/opensaf_scale_out \
> + $(top_srcdir)/scripts/opensaf_sc_active
>
> if ENABLE_RPM_TARGET
>
> diff --git a/opensaf.spec.in b/opensaf.spec.in
> --- a/opensaf.spec.in
> +++ b/opensaf.spec.in
> @@ -948,6 +948,7 @@ fi
> %{_pkglibdir}/opensafd
> %{_pkglibdir}/opensaf_reboot
> %{_pkglibdir}/opensaf_scale_out
> +%{_pkglibdir}/opensaf_sc_active
> %{_pkglibdir}/configure_tipc
>
>
> diff --git a/osaf/services/infrastructure/rde/Makefile.am
> b/osaf/services/infrastructure/rde/Makefile.am
> --- a/osaf/services/infrastructure/rde/Makefile.am
> +++ b/osaf/services/infrastructure/rde/Makefile.am
> @@ -31,7 +31,8 @@ osafrded_SOURCES = \
> rde_amf.cc \
> rde_main.cc \
> rde_mds.cc \
> - rde_rda.cc
> + rde_rda.cc \
> + role.cc
>
> osafrded_LDADD = \
> $(top_builddir)/osaf/libs/core/libopensaf_core.la \
> diff --git a/osaf/services/infrastructure/rde/config/rde.conf
> b/osaf/services/infrastructure/rde/config/rde.conf
> --- a/osaf/services/infrastructure/rde/config/rde.conf
> +++ b/osaf/services/infrastructure/rde/config/rde.conf
> @@ -10,6 +10,9 @@
> # waiting to discover a peer. Default is 2s.
> #export RDE_DISCOVER_PEER_TIMEOUT=5000
>
> +# Maximum execution time in milliseconds for the opensaf_sc_active script.
> +#export RDE_PRE_ACTIVE_SCRIPT_TIMEOUT=5000
> +
> # Healthcheck keys
> export RDE_HA_ENV_HEALTHCHECK_KEY="Default"
>
> diff --git a/osaf/services/infrastructure/rde/include/Makefile.am
> b/osaf/services/infrastructure/rde/include/Makefile.am
> --- a/osaf/services/infrastructure/rde/include/Makefile.am
> +++ b/osaf/services/infrastructure/rde/include/Makefile.am
> @@ -22,4 +22,5 @@ noinst_HEADERS = \
> rde_amf.h \
> rde_cb.h \
> rde_rda.h \
> - rde_rda_common.h
> + rde_rda_common.h \
> + role.h
> diff --git a/osaf/services/infrastructure/rde/include/rde_amf.h
> b/osaf/services/infrastructure/rde/include/rde_amf.h
> --- a/osaf/services/infrastructure/rde/include/rde_amf.h
> +++ b/osaf/services/infrastructure/rde/include/rde_amf.h
> @@ -44,6 +44,8 @@
> #include "saAis.h"
> #include "saAmf.h"
>
> +class Role;
> +
> /*
> * Macro used to get the AMF version used
> */
> @@ -56,11 +58,14 @@ struct RDE_AMF_CB {
> char comp_name[256];
> SaAmfHandleT amf_hdl; /* AMF handle */
> SaSelectionObjectT amf_fd; /* AMF selection fd */
> + Role* role;
> bool is_amf_up; /* For amf_fd and pipe_fd */
> bool nid_started; /**< true if started by NID */
>
> };
>
> extern uint32_t rde_amf_init(RDE_AMF_CB *rde_amf_cb);
> +extern SaAisErrorT internal_csi_set_callback(SaInvocationT invocation,
> + SaAmfHAStateT new_haState);
>
> #endif
> diff --git a/osaf/services/infrastructure/rde/include/rde_cb.h
> b/osaf/services/infrastructure/rde/include/rde_cb.h
> --- a/osaf/services/infrastructure/rde/include/rde_cb.h
> +++ b/osaf/services/infrastructure/rde/include/rde_cb.h
> @@ -25,6 +25,12 @@
> #include "rde_amf.h"
> #include "rde_rda.h"
> #include "rda_papi.h"
> +#include "osaf_utility.h"
> +
> +/* The value to put in the PATH environment variable when calling the
> + SC active script */
> +#define SC_ACTIVE_PATH_ENV "/usr/local/sbin:/usr/local/bin:/usr/sbin:" \
> + "/usr/bin:/sbin:/bin"
>
> /*
> ** RDE_CONTROL_BLOCK
> @@ -41,8 +47,6 @@ struct RDE_CONTROL_BLOCK {
> bool fabric_interface;
> uint32_t select_timeout;
>
> - PCS_RDA_ROLE ha_role;
> -
> RDE_RDA_CB rde_rda_cb;
> RDE_AMF_CB rde_amf_cb;
>
> @@ -70,7 +74,6 @@ struct rde_msg {
> };
>
> extern const char *rde_msg_name[];
> -extern NCS_NODE_ID rde_my_node_id;
>
>
> /*****************************************************************************\
> *
> *
> @@ -79,7 +82,8 @@ extern NCS_NODE_ID rde_my_node_id;
>
> \*****************************************************************************/
>
> extern RDE_CONTROL_BLOCK *rde_get_control_block();
> -extern uint32_t rde_mds_register(RDE_CONTROL_BLOCK *cb);
> +extern uint32_t rde_mds_register();
> +extern uint32_t rde_mds_unregister();
> extern uint32_t rde_mds_send(struct rde_msg *msg, MDS_DEST to_dest);
> extern uint32_t rde_set_role(PCS_RDA_ROLE role);
>
> diff --git a/osaf/services/infrastructure/rde/include/rde_rda.h
> b/osaf/services/infrastructure/rde/include/rde_rda.h
> --- a/osaf/services/infrastructure/rde/include/rde_rda.h
> +++ b/osaf/services/infrastructure/rde/include/rde_rda.h
> @@ -38,6 +38,8 @@
> #include <sys/socket.h>
> #include <sys/un.h>
>
> +class Role;
> +
>
> /*****************************************************************************\
> *
> *
> * Constants and Enumerated Values
> *
> @@ -85,6 +87,7 @@ struct RDE_RDA_CB {
> int fd; /* File descriptor */
> int flags; /* Flags specified for open */
> int client_count;
> + Role* role;
> RDE_RDA_CLIENT clients[MAX_RDA_CLIENTS];
>
> } ;
> diff --git a/osaf/services/infrastructure/rde/include/role.h
> b/osaf/services/infrastructure/rde/include/role.h
> new file mode 100644
> --- /dev/null
> +++ b/osaf/services/infrastructure/rde/include/role.h
> @@ -0,0 +1,60 @@
> +/* -*- OpenSAF -*-
> + *
> + * (C) Copyright 2016 The OpenSAF Foundation
> + *
> + * This program is distributed in the hope that it will be useful, but
> + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
> + * or FITNESS FOR A PARTICULAR PURPOSE. This file and program are licensed
> + * under the GNU Lesser General Public License Version 2.1, February 1999.
> + * The complete license can be accessed from the following location:
> + * http://opensource.org/licenses/lgpl-license.php
> + * See the Copying file included with the OpenSAF distribution for full
> + * licensing terms.
> + *
> + * Author(s): Ericsson AB
> + *
> + */
> +
> +#ifndef OPENSAF_OSAF_SERVICES_INFRASTRUCTURE_RDE_INCLUDE_ROLE_H_
> +#define OPENSAF_OSAF_SERVICES_INFRASTRUCTURE_RDE_INCLUDE_ROLE_H_
> +
> +#include <time.h>
> +#include <stdint.h>
> +#include "rda_papi.h"
> +#include "mds_papi.h"
> +#include "base/macros.h"
> +
> +namespace base {
> +class Process;
> +}
> +
> +class Role {
> + DELETE_COPY_AND_MOVE_OPERATORS(Role);
> + public:
> + Role(NODE_ID own_node_id);
> + void SetPeerState(PCS_RDA_ROLE node_role, NODE_ID node_id);
> + timespec* Poll(timespec* ts);
> + uint32_t SetRole(PCS_RDA_ROLE new_role);
> + PCS_RDA_ROLE role() const;
> + static const char* to_string(PCS_RDA_ROLE role);
> +
> + private:
> + static const uint64_t kDefaultDiscoverPeerTimeout = 2000;
> + static const uint64_t kDefaultPreActiveScriptTimeout = 5000;
> + void ExecutePreActiveScript();
> + void ResetElectionTimer();
> + uint32_t UpdateMdsRegistration(PCS_RDA_ROLE new_role,
> + PCS_RDA_ROLE old_role);
> +
> + PCS_RDA_ROLE role_;
> + NODE_ID own_node_id_;
> + base::Process* proc_;
> + timespec election_end_time_;
> + uint64_t discover_peer_timeout_;
> + uint64_t pre_active_script_timeout_;
> + static const char *const role_names_[];
> + static const char *const pre_active_script_;
> +};
> +
> +#endif /* OPENSAF_OSAF_SERVICES_INFRASTRUCTURE_RDE_INCLUDE_ROLE_H_ */
> +
> diff --git a/osaf/services/infrastructure/rde/rde_amf.cc
> b/osaf/services/infrastructure/rde/rde_amf.cc
> --- a/osaf/services/infrastructure/rde/rde_amf.cc
> +++ b/osaf/services/infrastructure/rde/rde_amf.cc
> @@ -15,10 +15,13 @@
> *
> */
>
> +#include "rde_amf.h"
> +
> #include <logtrace.h>
> #include <nid_start_util.h>
>
> #include "rde_cb.h"
> +#include "role.h"
>
> static RDE_AMF_CB *rde_amf_get_cb()
> {
> @@ -27,13 +30,24 @@ static RDE_AMF_CB *rde_amf_get_cb()
> }
>
> static void rde_saf_CSI_set_callback(SaInvocationT invocation,
> - const SaNameT *compName, SaAmfHAStateT haState, SaAmfCSIDescriptorT
> csiDescriptor)
> + const SaNameT *compName, SaAmfHAStateT new_haState,
> + SaAmfCSIDescriptorT csiDescriptor)
> {
> RDE_AMF_CB *rde_amf_cb = rde_amf_get_cb();
> -
> - TRACE_ENTER();
> -
> - (void) saAmfResponse(rde_amf_cb->amf_hdl, invocation, SA_AIS_OK);
> + TRACE_ENTER2("new_haState = %d, current = %d",
> + static_cast<int>(new_haState),
> + static_cast<int>(rde_amf_cb->role->role()));
> + uint32_t rc = NCSCC_RC_SUCCESS;
> + SaAisErrorT error = SA_AIS_OK;
> + if (new_haState != SA_AMF_HA_ACTIVE) {
> + if ((rc = rde_amf_cb->role->SetRole((PCS_RDA_ROLE)
> new_haState)) !=
> + NCSCC_RC_SUCCESS) {
> + LOG_ER("SetRole failed %u", (unsigned) rc);
> + error = SA_AIS_ERR_FAILED_OPERATION;
> + }
> + }
> + error = saAmfResponse(rde_amf_cb->amf_hdl, invocation, error);
> + TRACE_LEAVE2("rc = %u, error = %d", (unsigned) rc, (int) error);
> }
>
> static void rde_saf_health_chk_callback(SaInvocationT invocation,
> @@ -46,14 +60,19 @@ static void rde_saf_health_chk_callback(
> (void) saAmfResponse(rde_amf_cb->amf_hdl, invocation, SA_AIS_OK);
> }
>
> -void rde_saf_CSI_rem_callback(SaInvocationT invocation,
> - const SaNameT *compName, const SaNameT *csiName,
> const SaAmfCSIFlagsT csiFlags)
> +void rde_saf_CSI_rem_callback(SaInvocationT invocation, const SaNameT
> *compName,
> + const SaNameT *csiName, const SaAmfCSIFlagsT csiFlags)
> {
> RDE_AMF_CB *rde_amf_cb = rde_amf_get_cb();
> -
> - TRACE_ENTER();
> -
> - (void) saAmfResponse(rde_amf_cb->amf_hdl, invocation, SA_AIS_OK);
> + TRACE_ENTER2("current role: %d",
> static_cast<int>(rde_amf_cb->role->role()));
> + uint32_t rc = NCSCC_RC_SUCCESS;
> + SaAisErrorT error = SA_AIS_OK;
> + if ((rc = rde_amf_cb->role->SetRole(PCS_RDA_QUIESCED)) !=
> NCSCC_RC_SUCCESS) {
> + LOG_ER("SetRole failed %u", (unsigned) rc);
> + error = SA_AIS_ERR_FAILED_OPERATION;
> + }
> + error = saAmfResponse(rde_amf_cb->amf_hdl, invocation, error);
> + TRACE_LEAVE2("rc = %u, error = %d", (unsigned) rc, (int) error);
> }
>
> void rde_saf_comp_terminate_callback(SaInvocationT invocation, const
> SaNameT *compName)
> @@ -176,4 +195,3 @@ uint32_t rde_amf_init(RDE_AMF_CB *rde_am
> TRACE_LEAVE2("AMF Initialization SUCCESS......");
> return(rc);
> }
> -
> diff --git a/osaf/services/infrastructure/rde/rde_main.cc
> b/osaf/services/infrastructure/rde/rde_main.cc
> --- a/osaf/services/infrastructure/rde/rde_main.cc
> +++ b/osaf/services/infrastructure/rde/rde_main.cc
> @@ -20,6 +20,14 @@
> #include <cstdlib>
> #include <poll.h>
> #include <libgen.h>
> +#include <cstring>
> +#include <cerrno>
> +#include <unistd.h>
> +#include <limits.h>
> +#include <sys/types.h>
> +#include <sys/wait.h>
> +#include <sys/time.h>
> +#include <sys/resource.h>
>
> #include <logtrace.h>
> #include <mds_papi.h>
> @@ -28,19 +36,12 @@
> #include <nid_api.h>
>
> #include "rde_cb.h"
> +#include "osaf_time.h"
> +#include "osaf_poll.h"
> +#include "role.h"
>
> #define RDA_MAX_CLIENTS 32
>
> -static const char *role_string[] =
> -{
> - "Undefined role",
> - "ACTIVE",
> - "STANDBY",
> - "QUIESCED",
> - "QUIESCING",
> - "Invalid"
> -};
> -
> enum {
> FD_TERM = 0,
> FD_AMF = 1,
> @@ -49,8 +50,9 @@ enum {
> FD_CLIENT_START
> };
>
> -NCS_NODE_ID rde_my_node_id;
> -static NCS_NODE_ID peer_node_id;
> +static void SendPeerInfoReq(MDS_DEST mds_dest);
> +static void SendPeerInfoResp(MDS_DEST mds_dest);
> +static void CheckForSplitBrain(const rde_msg* msg);
>
> const char *rde_msg_name[] = {
> "-",
> @@ -60,12 +62,11 @@ const char *rde_msg_name[] = {
> "RDE_MSG_PEER_INFO_RESP(4)",
> };
>
> -/* note: default value mentioned in $pkgsysconfdir/rde.conf, change in both
> places */
> -static int discover_peer_timeout = 2000;
> static RDE_CONTROL_BLOCK _rde_cb;
> static RDE_CONTROL_BLOCK *rde_cb = &_rde_cb;
> static NCS_SEL_OBJ usr1_sel_obj;
> -
> +static NODE_ID own_node_id;
> +static Role* role;
>
> RDE_CONTROL_BLOCK *rde_get_control_block()
> {
> @@ -86,18 +87,6 @@ static void sigusr1_handler(int sig)
> ncs_sel_obj_ind(&usr1_sel_obj);
> }
>
> -uint32_t rde_set_role(PCS_RDA_ROLE role)
> -{
> - LOG_NO("RDE role set to %s", role_string[role]);
> -
> - rde_cb->ha_role = role;
> -
> - /* Send new role to all RDA client */
> - rde_rda_send_role(rde_cb->ha_role);
> -
> - return NCSCC_RC_SUCCESS;
> -}
> -
> static int fd_to_client_ixd(int fd)
> {
> int i;
> @@ -114,28 +103,42 @@ static int fd_to_client_ixd(int fd)
>
> static void handle_mbx_event()
> {
> - struct rde_msg *msg;
> + rde_msg *msg;
>
> TRACE_ENTER();
>
> msg = (struct rde_msg*)ncs_ipc_non_blk_recv(&rde_cb->mbx);
> + TRACE("Received %s from node 0x%x with state %s. My state is %s",
> + rde_msg_name[msg->type], msg->fr_node_id,
> + Role::to_string(msg->info.peer_info.ha_role),
> + Role::to_string(role->role()));
>
> switch (msg->type) {
> case RDE_MSG_PEER_INFO_REQ: {
> - struct rde_msg peer_info_req;
> - TRACE("Received %s", rde_msg_name[msg->type]);
> - peer_info_req.type = RDE_MSG_PEER_INFO_RESP;
> - peer_info_req.info.peer_info.ha_role = rde_cb->ha_role;
> - rde_mds_send(&peer_info_req, msg->fr_dest);
> + LOG_NO("Got peer info request from node 0x%x with role %s",
> + msg->fr_node_id,
> + Role::to_string(msg->info.peer_info.ha_role));
> + CheckForSplitBrain(msg);
> + SendPeerInfoResp(msg->fr_dest);
> break;
> }
> - case RDE_MSG_PEER_UP:
> - TRACE("Received %s", rde_msg_name[msg->type]);
> - peer_node_id = msg->fr_node_id;
> + case RDE_MSG_PEER_INFO_RESP: {
> + LOG_NO("Got peer info response from node 0x%x with role %s",
> + msg->fr_node_id,
> + Role::to_string(msg->info.peer_info.ha_role));
> + CheckForSplitBrain(msg);
> + role->SetPeerState(msg->info.peer_info.ha_role,
> msg->fr_node_id);
> break;
> + }
> + case RDE_MSG_PEER_UP: {
> + if (msg->fr_node_id != own_node_id) {
> + LOG_NO("Peer up on node 0x%x", msg->fr_node_id);
> + SendPeerInfoReq(msg->fr_dest);
> + }
> + break;
> + }
> case RDE_MSG_PEER_DOWN:
> - TRACE("Received %s", rde_msg_name[msg->type]);
> - peer_node_id = 0;
> + LOG_NO("Peer down on node 0x%x", msg->fr_node_id);
> break;
> default:
> LOG_ER("%s: discarding unknown message type %u", __FUNCTION__,
> msg->type);
> @@ -147,159 +150,26 @@ static void handle_mbx_event()
> TRACE_LEAVE();
> }
>
> -static uint32_t discover_peer(int mbx_fd)
> -{
> - struct pollfd fds[1];
> - struct rde_msg *msg;
> - int ret;
> - uint32_t rc = NCSCC_RC_SUCCESS;
> -
> - TRACE_ENTER();
> -
> - fds[0].fd = mbx_fd;
> - fds[0].events = POLLIN;
> -
> - while (1) {
> - ret = poll(fds, 1, discover_peer_timeout);
> -
> - if (ret == -1) {
> - if (errno == EINTR)
> - continue;
> -
> - LOG_ER("poll failed - %s", strerror(errno));
> - rc = NCSCC_RC_FAILURE;
> - goto done;
> - }
> -
> - if (ret == 0) {
> - TRACE("Peer discovery timeout");
> - goto done;
> - }
> -
> - if (ret == 1) {
> - msg = (struct
> rde_msg*)ncs_ipc_non_blk_recv(&rde_cb->mbx);
> -
> - switch (msg->type) {
> - case RDE_MSG_PEER_UP: {
> - struct rde_msg peer_info_req;
> -
> - peer_node_id = msg->fr_node_id;
> - TRACE("Received %s", rde_msg_name[msg->type]);
> -
> - /* Send request for peer information */
> - peer_info_req.type = RDE_MSG_PEER_INFO_REQ;
> - peer_info_req.info.peer_info.ha_role =
> rde_cb->ha_role;
> - rde_mds_send(&peer_info_req, msg->fr_dest);
> - goto done;
> - }
> - default:
> - LOG_ER("%s: discarding unknown message type
> %u", __FUNCTION__, msg->type);
> - break;
> - }
> -
> - } else
> - assert(0);
> - }
> -done:
> - TRACE_LEAVE();
> - return rc;
> +static void CheckForSplitBrain(const rde_msg* msg) {
> + PCS_RDA_ROLE own_role = role->role();
> + PCS_RDA_ROLE other_role = msg->info.peer_info.ha_role;
> + if (own_role == PCS_RDA_ACTIVE && other_role == PCS_RDA_ACTIVE) {
> + opensaf_reboot(0, NULL, "Split-brain detected");
> + }
> }
>
> -static uint32_t determine_role(int mbx_fd)
> -{
> - struct pollfd fds[1];
> - struct rde_msg *msg;
> - int ret;
> - uint32_t rc = NCSCC_RC_SUCCESS;
> +static void SendPeerInfoReq(MDS_DEST mds_dest) {
> + rde_msg peer_info_req;
> + peer_info_req.type = RDE_MSG_PEER_INFO_REQ;
> + peer_info_req.info.peer_info.ha_role = role->role();
> + rde_mds_send(&peer_info_req, mds_dest);
> +}
>
> - TRACE_ENTER();
> -
> - if (peer_node_id == 0) {
> - LOG_NO("No peer available => Setting Active role for this
> node");
> - rde_cb->ha_role = PCS_RDA_ACTIVE;
> - goto done;
> - }
> -
> - fds[0].fd = mbx_fd;
> - fds[0].events = POLLIN;
> -
> - while (1) {
> - ret = poll(fds, 1, -1);
> -
> - if (ret == -1) {
> - if (errno == EINTR)
> - continue;
> -
> - LOG_ER("poll failed - %s", strerror(errno));
> - rc = NCSCC_RC_FAILURE;
> - goto done;
> - }
> -
> - assert(ret == 1);
> -
> - msg = (struct rde_msg*)ncs_ipc_non_blk_recv(&rde_cb->mbx);
> -
> - switch (msg->type) {
> - case RDE_MSG_PEER_UP:
> - TRACE("Received straggler up msg, ignoring");
> - assert(peer_node_id);
> - break;
> - case RDE_MSG_PEER_DOWN:
> - TRACE("Received %s", rde_msg_name[msg->type]);
> - LOG_NO("peer rde@%x down waiting for response =>
> Setting Active role", peer_node_id);
> - rde_cb->ha_role = PCS_RDA_ACTIVE;
> - peer_node_id = 0;
> - goto done;
> - case RDE_MSG_PEER_INFO_REQ: {
> - struct rde_msg peer_info_req;
> - TRACE("Received %s", rde_msg_name[msg->type]);
> - peer_info_req.type = RDE_MSG_PEER_INFO_RESP;
> - peer_info_req.info.peer_info.ha_role = rde_cb->ha_role;
> - rde_mds_send(&peer_info_req, msg->fr_dest);
> - break;
> - }
> - case RDE_MSG_PEER_INFO_RESP:
> - TRACE("Received %s", rde_msg_name[msg->type]);
> - switch (msg->info.peer_info.ha_role) {
> - case PCS_RDA_UNDEFINED:
> - TRACE("my=%x, peer=%x", rde_my_node_id,
> msg->fr_node_id);
> - if (rde_my_node_id < msg->fr_node_id) {
> - rde_cb->ha_role = PCS_RDA_ACTIVE;
> - LOG_NO("Peer rde@%x has no state, my
> nodeid is less => Setting Active role", msg->fr_node_id);
> - } else if (rde_my_node_id > msg->fr_node_id) {
> - rde_cb->ha_role = PCS_RDA_STANDBY;
> - LOG_NO("Peer rde@%x has no state, my
> nodeid is greater => Setting Standby role", msg->fr_node_id);
> - } else
> - assert(0);
> - goto done;
> - case PCS_RDA_ACTIVE:
> - rde_cb->ha_role = PCS_RDA_STANDBY;
> - LOG_NO("Peer rde@%x has active state =>
> Assigning Standby role to this node", msg->fr_node_id);
> - goto done;
> - case PCS_RDA_STANDBY:
> - LOG_NO("Peer rde@%x has standby state =>
> possible fail over, waiting...", msg->fr_node_id);
> - sleep(1);
> -
> - /* Send request for peer information */
> - struct rde_msg peer_info_req;
> - peer_info_req.type = RDE_MSG_PEER_INFO_REQ;
> - peer_info_req.info.peer_info.ha_role =
> rde_cb->ha_role;
> - rde_mds_send(&peer_info_req, msg->fr_dest);
> - break;
> - default:
> - LOG_NO("rde@%x has unsupported state, panic!",
> msg->fr_node_id);
> - assert(0);
> - }
> - break;
> - default:
> - LOG_ER("%s: discarding unknown message type %u",
> __FUNCTION__, msg->type);
> - break;
> - }
> - } /* while (1) */
> -
> -done:
> - TRACE_LEAVE();
> - return rc;
> +static void SendPeerInfoResp(MDS_DEST mds_dest) {
> + rde_msg peer_info_req;
> + peer_info_req.type = RDE_MSG_PEER_INFO_RESP;
> + peer_info_req.info.peer_info.ha_role = role->role();
> + rde_mds_send(&peer_info_req, mds_dest);
> }
>
> /**
> @@ -311,22 +181,26 @@ static int initialize_rde()
> {
> RDE_RDA_CB *rde_rda_cb = &rde_cb->rde_rda_cb;
> int rc = NCSCC_RC_FAILURE;
> - char *val;
> +
> + if ((rc = rde_rda_open(RDE_RDA_SOCK_NAME, rde_rda_cb)) !=
> + NCSCC_RC_SUCCESS) {
> + goto init_failed;
> + }
>
> /* Determine how this process was started, by NID or AMF */
> if (getenv("SA_AMF_COMPONENT_NAME") == nullptr)
> rde_cb->rde_amf_cb.nid_started = true;
>
> - if ((val = getenv("RDE_DISCOVER_PEER_TIMEOUT")) != nullptr)
> - discover_peer_timeout = strtoul(val, nullptr, 0);
> -
> - TRACE("discover_peer_timeout=%d", discover_peer_timeout);
> -
> if ((rc = ncs_core_agents_startup()) != NCSCC_RC_SUCCESS) {
> LOG_ER("ncs_core_agents_startup FAILED");
> goto init_failed;
> }
>
> + own_node_id = ncs_get_node_id();
> + role = new Role(own_node_id);
> + rde_rda_cb->role = role;
> + rde_cb->rde_amf_cb.role = role;
> +
> if (rde_cb->rde_amf_cb.nid_started &&
> (rc = ncs_sel_obj_create(&usr1_sel_obj)) != NCSCC_RC_SUCCESS) {
> LOG_ER("ncs_sel_obj_create FAILED");
> @@ -343,20 +217,12 @@ static int initialize_rde()
> goto init_failed;
> }
>
> - rde_my_node_id = ncs_get_node_id();
> -
> - if ((rc = rde_rda_open(RDE_RDA_SOCK_NAME, rde_rda_cb)) !=
> NCSCC_RC_SUCCESS)
> - goto init_failed;
> -
> if (rde_cb->rde_amf_cb.nid_started &&
> signal(SIGUSR1, sigusr1_handler) == SIG_ERR) {
> LOG_ER("signal USR1 FAILED: %s", strerror(errno));
> goto init_failed;
> }
>
> - if (rde_mds_register(rde_cb) != NCSCC_RC_SUCCESS)
> - goto init_failed;
> -
> rc = NCSCC_RC_SUCCESS;
>
> init_failed:
> @@ -365,14 +231,15 @@ static int initialize_rde()
>
> int main(int argc, char *argv[])
> {
> - uint32_t rc;
> - nfds_t nfds = 4;
> + nfds_t nfds = FD_CLIENT_START;
> struct pollfd fds[nfds + RDA_MAX_CLIENTS];
> - int i, ret;
> + int ret;
> NCS_SEL_OBJ mbx_sel_obj;
> RDE_RDA_CB *rde_rda_cb = &rde_cb->rde_rda_cb;
> int term_fd;
>
> + opensaf_reboot_prepare();
> +
> daemonize(argc, argv);
>
> if (initialize_rde() != NCSCC_RC_SUCCESS)
> @@ -380,24 +247,12 @@ int main(int argc, char *argv[])
>
> mbx_sel_obj = ncs_ipc_get_sel_obj(&rde_cb->mbx);
>
> - if ((rc = discover_peer(mbx_sel_obj.rmv_obj)) == NCSCC_RC_FAILURE)
> - goto init_failed;
> -
> - if ((rc = determine_role(mbx_sel_obj.rmv_obj)) == NCSCC_RC_FAILURE)
> - goto init_failed;
> -
> /* If AMF started register immediately */
> if (!rde_cb->rde_amf_cb.nid_started &&
> - (rc = rde_amf_init(&rde_cb->rde_amf_cb)) != NCSCC_RC_SUCCESS) {
> + rde_amf_init(&rde_cb->rde_amf_cb) != NCSCC_RC_SUCCESS) {
> goto init_failed;
> }
>
> - if (rde_cb->rde_amf_cb.nid_started &&
> - nid_notify("RDE", rc, nullptr) != NCSCC_RC_SUCCESS) {
> - LOG_ER("nid_notify failed");
> - goto done;
> - }
> -
> daemon_sigterm_install(&term_fd);
>
> fds[FD_TERM].fd = term_fd;
> @@ -416,8 +271,27 @@ int main(int argc, char *argv[])
> fds[FD_RDA_SERVER].fd = rde_cb->rde_rda_cb.fd;
> fds[FD_RDA_SERVER].events = POLLIN;
>
> + if (rde_cb->rde_amf_cb.nid_started) {
> + TRACE("NID started");
> + if (nid_notify("RDE", NCSCC_RC_SUCCESS, nullptr) !=
> NCSCC_RC_SUCCESS) {
> + LOG_ER("nid_notify failed");
> + goto init_failed;
> + }
> + } else {
> + TRACE("Not NID started");
> + }
> +
> while (1) {
> - ret = poll(fds, nfds, -1);
> + nfds_t fds_to_poll = role->role() != PCS_RDA_UNDEFINED ?
> + nfds : FD_CLIENT_START;
> + ret = osaf_poll(fds, fds_to_poll, 0);
> + if (ret == 0) {
> + timespec ts;
> + timespec* timeout = role->Poll(&ts);
> + fds_to_poll = role->role() != PCS_RDA_UNDEFINED ?
> + nfds : FD_CLIENT_START;
> + ret = osaf_ppoll(fds, fds_to_poll, timeout, nullptr);
> + }
>
> if (ret == -1) {
> if (errno == EINTR)
> @@ -475,7 +349,9 @@ int main(int argc, char *argv[])
> TRACE("accepted new client, fd=%d, idx=%d, nfds=%lu",
> newsockfd, rde_rda_cb->client_count, nfds);
> }
>
> - for (i = FD_CLIENT_START; static_cast<nfds_t>(i) < nfds; i++) {
> + for (nfds_t i = FD_CLIENT_START;
> + role->role() != PCS_RDA_UNDEFINED && i < fds_to_poll;
> + i++) {
> if (fds[i].revents & POLLIN) {
> int client_disconnected = 0;
> TRACE("received msg on fd %u", fds[i].fd);
> @@ -483,9 +359,9 @@ int main(int argc, char *argv[])
> if (client_disconnected) {
> /* reinitialize the fd array & nfds */
> nfds = FD_CLIENT_START;
> - for (i = 0; i <
> rde_rda_cb->client_count; i++, nfds++) {
> - fds[i + FD_CLIENT_START].fd =
> rde_rda_cb->clients[i].fd;
> - fds[i + FD_CLIENT_START].events
> = POLLIN;
> + for (int j = 0; j <
> rde_rda_cb->client_count; j++, nfds++) {
> + fds[j + FD_CLIENT_START].fd =
> rde_rda_cb->clients[j].fd;
> + fds[j + FD_CLIENT_START].events
> = POLLIN;
> }
> TRACE("client disconnected, fd array
> reinitialized, nfds=%lu", nfds);
> break;
> @@ -498,7 +374,6 @@ int main(int argc, char *argv[])
> if (rde_cb->rde_amf_cb.nid_started &&
> nid_notify("RDE", NCSCC_RC_FAILURE, nullptr) !=
> NCSCC_RC_SUCCESS) {
> LOG_ER("nid_notify failed");
> - rc = NCSCC_RC_FAILURE;
> }
>
> done:
> diff --git a/osaf/services/infrastructure/rde/rde_mds.cc
> b/osaf/services/infrastructure/rde/rde_mds.cc
> --- a/osaf/services/infrastructure/rde/rde_mds.cc
> +++ b/osaf/services/infrastructure/rde/rde_mds.cc
> @@ -15,6 +15,8 @@
> *
> */
>
> +#include <thread>
> +#include <chrono>
> #include <logtrace.h>
> #include <mds_papi.h>
> #include <ncsencdec_pub.h>
> @@ -23,7 +25,6 @@
>
> #define RDE_MDS_PVT_SUBPART_VERSION 1
>
> -static MDS_DEST peer_dest;
> static MDS_HDL mds_hdl;
>
> static uint32_t msg_encode(MDS_CALLBACK_ENC_INFO *enc_info)
> @@ -145,12 +146,6 @@ static uint32_t mds_callback(struct ncsm
> case MDS_CALLBACK_DEC_FLAT:
> break;
> case MDS_CALLBACK_RECEIVE:
> - if (!peer_dest) {
> - /* Sometimes a message from peer is received before
> MDS_UP, simulate MDS_UP */
> - TRACE("generating up msg from rec event!");
> - rc = mbx_send(RDE_MSG_PEER_UP,
> info->info.receive.i_fr_dest, info->info.receive.i_node_id);
> - }
> -
> msg = (struct rde_msg*)info->info.receive.i_msg;
> msg->fr_dest = info->info.receive.i_fr_dest;
> msg->fr_node_id = info->info.receive.i_node_id;
> @@ -162,18 +157,13 @@ static uint32_t mds_callback(struct ncsm
> }
> break;
> case MDS_CALLBACK_SVC_EVENT:
> - if (rde_my_node_id == info->info.svc_evt.i_node_id)
> - goto done;
> -
> if (info->info.svc_evt.i_change == NCSMDS_DOWN) {
> TRACE("MDS DOWN dest: %" PRIx64 ", node ID: %x, svc_id:
> %d",
> info->info.svc_evt.i_dest,
> info->info.svc_evt.i_node_id, info->info.svc_evt.i_svc_id);
> - peer_dest = 0;
> rc = mbx_send(RDE_MSG_PEER_DOWN,
> info->info.svc_evt.i_dest, info->info.svc_evt.i_node_id);
> } else if (info->info.svc_evt.i_change == NCSMDS_UP) {
> TRACE("MDS UP dest: %" PRIx64 ", node ID: %x, svc_id:
> %d",
> info->info.svc_evt.i_dest,
> info->info.svc_evt.i_node_id, info->info.svc_evt.i_svc_id);
> - peer_dest = info->info.svc_evt.i_dest;
> rc = mbx_send(RDE_MSG_PEER_UP,
> info->info.svc_evt.i_dest, info->info.svc_evt.i_node_id);
> } else {
> TRACE("MDS %u dest: %" PRIx64 ", node ID: %x, svc_id:
> %d", info->info.svc_evt.i_change,
> @@ -192,7 +182,7 @@ done:
> return rc;
> }
>
> -uint32_t rde_mds_register(RDE_CONTROL_BLOCK *cb)
> +uint32_t rde_mds_register()
> {
> NCSADA_INFO ada_info;
> NCSMDS_INFO svc_info;
> @@ -243,28 +233,56 @@ uint32_t rde_mds_register(RDE_CONTROL_BL
> return NCSCC_RC_SUCCESS;
> }
>
> +uint32_t rde_mds_unregister()
> +{
> + NCSMDS_INFO mds_info;
> + uint32_t rc = NCSCC_RC_SUCCESS;
> + TRACE_ENTER();
> +
> + /* Un-install your service into MDS.
> + No need to cancel the services that are subscribed */
> + memset(&mds_info, 0, sizeof(NCSMDS_INFO));
> +
> + mds_info.i_mds_hdl = mds_hdl;
> + mds_info.i_svc_id = NCSMDS_SVC_ID_RDE;
> + mds_info.i_op = MDS_UNINSTALL;
> +
> + rc = ncsmds_api(&mds_info);
> + if (rc != NCSCC_RC_SUCCESS) {
> + LOG_WA("MDS Unregister Failed");
> + }
> +
> + TRACE_LEAVE2("retval = %u", rc);
> + return rc;
> +}
> +
> uint32_t rde_mds_send(struct rde_msg *msg, MDS_DEST to_dest)
> {
> NCSMDS_INFO info;
> uint32_t rc;
>
> - TRACE("Sending %s to %" PRIx64, rde_msg_name[msg->type], to_dest);
> - memset(&info, 0, sizeof(info));
> + for (int i = 0; i != 3; ++i) {
> + TRACE("Sending %s to %" PRIx64, rde_msg_name[msg->type],
> to_dest);
> + memset(&info, 0, sizeof(info));
>
> - info.i_mds_hdl = mds_hdl;
> - info.i_op = MDS_SEND;
> - info.i_svc_id = NCSMDS_SVC_ID_RDE;
> -
> - info.info.svc_send.i_msg = msg;
> - info.info.svc_send.i_priority = MDS_SEND_PRIORITY_MEDIUM;
> - info.info.svc_send.i_sendtype = MDS_SENDTYPE_SND;
> - info.info.svc_send.i_to_svc = NCSMDS_SVC_ID_RDE;
> - info.info.svc_send.info.snd.i_to_dest = to_dest;
> -
> - rc = ncsmds_api(&info);
> - if (NCSCC_RC_FAILURE == rc)
> - LOG_ER("rde async MDS send FAILED");
> + info.i_mds_hdl = mds_hdl;
> + info.i_op = MDS_SEND;
> + info.i_svc_id = NCSMDS_SVC_ID_RDE;
> +
> + info.info.svc_send.i_msg = msg;
> + info.info.svc_send.i_priority = MDS_SEND_PRIORITY_MEDIUM;
> + info.info.svc_send.i_sendtype = MDS_SENDTYPE_SND;
> + info.info.svc_send.i_to_svc = NCSMDS_SVC_ID_RDE;
> + info.info.svc_send.info.snd.i_to_dest = to_dest;
> +
> + rc = ncsmds_api(&info);
> + if (NCSCC_RC_FAILURE == rc) {
> + LOG_ER("Failed to send %s to %" PRIx64,
> rde_msg_name[msg->type], to_dest);
> +
> std::this_thread::sleep_for(std::chrono::milliseconds(100));
> + } else {
> + break;
> + }
> + }
>
> return rc;
> }
> -
> diff --git a/osaf/services/infrastructure/rde/rde_rda.cc
> b/osaf/services/infrastructure/rde/rde_rda.cc
> --- a/osaf/services/infrastructure/rde/rde_rda.cc
> +++ b/osaf/services/infrastructure/rde/rde_rda.cc
> @@ -38,6 +38,7 @@
> #include <logtrace.h>
>
> #include "rde_cb.h"
> +#include "role.h"
>
>
> /*****************************************************************************
>
> @@ -261,11 +262,9 @@ static uint32_t rde_rda_read_msg(int fd,
> static uint32_t rde_rda_process_get_role(RDE_RDA_CB *rde_rda_cb, int index)
> {
> char msg[64] = { 0 };
> - RDE_CONTROL_BLOCK *rde_cb = rde_get_control_block();
> -
> TRACE_ENTER();
>
> - sprintf(msg, "%d %d", RDE_RDA_GET_ROLE_RES, rde_cb->ha_role);
> + sprintf(msg, "%d %d", RDE_RDA_GET_ROLE_RES,
> static_cast<int>(rde_rda_cb->role->role()));
> if (rde_rda_write_msg(rde_rda_cb->clients[index].fd, msg) !=
> NCSCC_RC_SUCCESS) {
> return NCSCC_RC_FAILURE;
> }
> @@ -299,7 +298,7 @@ static uint32_t rde_rda_process_set_role
>
> TRACE_ENTER();
>
> - if (rde_set_role(static_cast<PCS_RDA_ROLE>(role)) != NCSCC_RC_SUCCESS)
> + if (rde_rda_cb->role->SetRole(static_cast<PCS_RDA_ROLE>(role)) !=
> NCSCC_RC_SUCCESS)
> sprintf(msg, "%d", RDE_RDA_SET_ROLE_NACK);
> else
> sprintf(msg, "%d", RDE_RDA_SET_ROLE_ACK);
> diff --git a/osaf/services/infrastructure/rde/role.cc
> b/osaf/services/infrastructure/rde/role.cc
> new file mode 100644
> --- /dev/null
> +++ b/osaf/services/infrastructure/rde/role.cc
> @@ -0,0 +1,144 @@
> +/* -*- OpenSAF -*-
> + *
> + * (C) Copyright 2016 The OpenSAF Foundation
> + *
> + * This program is distributed in the hope that it will be useful, but
> + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
> + * or FITNESS FOR A PARTICULAR PURPOSE. This file and program are licensed
> + * under the GNU Lesser General Public License Version 2.1, February 1999.
> + * The complete license can be accessed from the following location:
> + * http://opensource.org/licenses/lgpl-license.php
> + * See the Copying file included with the OpenSAF distribution for full
> + * licensing terms.
> + *
> + * Author(s): Ericsson AB
> + *
> + */
> +
> +#ifndef _GNU_SOURCE
> +#define _GNU_SOURCE
> +#endif
> +#include "role.h"
> +#include <stdint.h>
> +#include <chrono>
> +#include "configmake.h"
> +#include "logtrace.h"
> +#include "ncs_main_papi.h"
> +#include "base/getenv.h"
> +#include "base/process.h"
> +#include "base/time.h"
> +#include "rde_cb.h"
> +
> +const char *const Role::role_names_[] = {
> + "Undefined",
> + "ACTIVE",
> + "STANDBY",
> + "QUIESCED",
> + "QUIESCING",
> + "Invalid"
> +};
> +
> +const char *const Role::pre_active_script_ = PKGLIBDIR "/opensaf_sc_active";
> +
> +PCS_RDA_ROLE Role::role() const {
> + return role_;
> +}
> +
> +const char* Role::to_string(PCS_RDA_ROLE role) {
> + return role >= 0 && role < sizeof(role_names_) / sizeof(role_names_[0]) ?
> + role_names_[role] : role_names_[0];
> +}
> +
> +Role::Role(NODE_ID own_node_id)
> + : role_{PCS_RDA_QUIESCED},
> + own_node_id_{own_node_id},
> + proc_{new base::Process()},
> + election_end_time_{},
> + discover_peer_timeout_{base::GetEnv("RDE_DISCOVER_PEER_TIMEOUT",
> + kDefaultDiscoverPeerTimeout)},
> +
> pre_active_script_timeout_{base::GetEnv("RDE_PRE_ACTIVE_SCRIPT_TIMEOUT",
> + kDefaultPreActiveScriptTimeout)} {
> +}
> +
> +timespec* Role::Poll(timespec* ts) {
> + timespec* timeout = nullptr;
> + if (role_ == PCS_RDA_UNDEFINED) {
> + timespec now = base::ReadMonotonicClock();
> + if (election_end_time_ >= now) {
> + *ts = election_end_time_ - now;
> + timeout = ts;
> + } else {
> + ExecutePreActiveScript();
> + LOG_NO("Switched to ACTIVE from %s", to_string(role()));
> + role_ = PCS_RDA_ACTIVE;
> + rde_rda_send_role(role_);
> + }
> + }
> + return timeout;
> +}
> +
> +void Role::ExecutePreActiveScript() {
> + int argc = 1;
> + char* argv[] = {
> + const_cast<char*>(pre_active_script_),
> + nullptr
> + };
> + proc_->Execute(argc, argv,
> + std::chrono::milliseconds(pre_active_script_timeout_));
> +}
> +
> +uint32_t Role::SetRole(PCS_RDA_ROLE new_role) {
> + PCS_RDA_ROLE old_role = role_;
> + if (new_role == PCS_RDA_ACTIVE &&
> + (old_role == PCS_RDA_UNDEFINED || old_role == PCS_RDA_QUIESCED)) {
> + LOG_NO("Requesting ACTIVE role");
> + new_role = PCS_RDA_UNDEFINED;
> + }
> + if (new_role != old_role) {
> + LOG_NO("RDE role set to %s", to_string(new_role));
> + if (new_role == PCS_RDA_ACTIVE) ExecutePreActiveScript();
> + role_ = new_role;
> + if (new_role == PCS_RDA_UNDEFINED) ResetElectionTimer();
> + else rde_rda_send_role(new_role);
> + }
> + return UpdateMdsRegistration(new_role, old_role);
> +}
> +
> +void Role::ResetElectionTimer() {
> + election_end_time_ = base::ReadMonotonicClock() +
> + base::MillisToTimespec(discover_peer_timeout_);
> +}
> +
> +uint32_t Role::UpdateMdsRegistration(PCS_RDA_ROLE new_role,
> + PCS_RDA_ROLE old_role) {
> + uint32_t rc = NCSCC_RC_SUCCESS;
> + bool mds_registered_before = old_role != PCS_RDA_QUIESCED;
> + bool mds_registered_after = new_role != PCS_RDA_QUIESCED;
> + if (mds_registered_after != mds_registered_before) {
> + if (mds_registered_after) {
> + if (rde_mds_register() != NCSCC_RC_SUCCESS) {
> + LOG_ER("rde_mds_register() failed");
> + rc = NCSCC_RC_FAILURE;
> + }
> + } else {
> + if (rde_mds_unregister() != NCSCC_RC_SUCCESS) {
> + LOG_ER("rde_mds_unregister() failed");
> + rc = NCSCC_RC_FAILURE;
> + }
> + }
> + }
> + return rc;
> +}
> +
> +void Role::SetPeerState(PCS_RDA_ROLE node_role, NODE_ID node_id) {
> + if (role() == PCS_RDA_UNDEFINED) {
> + if (node_role == PCS_RDA_ACTIVE ||
> + node_role == PCS_RDA_STANDBY ||
> + (node_role == PCS_RDA_UNDEFINED && node_id < own_node_id_)) {
> + SetRole(PCS_RDA_QUIESCED);
> + LOG_NO("Giving up election against 0x%" PRIx32 " with role %s. "
> + "My role is now %s", node_id, to_string(node_role),
> + to_string(role()));
> + }
> + }
> +}
> diff --git a/scripts/opensaf_sc_active b/scripts/opensaf_sc_active
> new file mode 100644
> --- /dev/null
> +++ b/scripts/opensaf_sc_active
> @@ -0,0 +1,30 @@
> +#!/bin/sh
> +#
> +# -*- OpenSAF -*-
> +#
> +# (C) Copyright 2015 The OpenSAF Foundation
> +#
> +# This program is distributed in the hope that it will be useful, but
> +# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
> +# or FITNESS FOR A PARTICULAR PURPOSE. This file and program are licensed
> +# under the GNU Lesser General Public License Version 2.1, February 1999.
> +# The complete license can be accessed from the following location:
> +# http://opensource.org/licenses/lgpl-license.php
> +# See the Copying file included with the OpenSAF distribution for full
> +# licensing terms.
> +#
> +# Author(s): Ericsson AB
> +#
> +
> +. /etc/opensaf/osafdir.conf
> +
> +export PATH=$sbindir:$bindir:$PATH
> +export LD_LIBRARY_PATH=$libdir:$LD_LIBRARY_PATH
> +
> +# This script will be executed before a node becomes the active SC.
> +#
> +# NOTE: The SC will wait for this script to exit before taking on the active
> +# role, so therefore this script must exit quickly. The execution time is
> +# supervised and if it exceeds the RDE_PRE_ACTIVE_SCRIPT_TIMEOUT time
> configured
> +# in rde.conf, the script will be killed.
> +exit 0
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