[SCM] CTDB repository - branch 1.2 updated - ctdb-1.0.114-326-g28673ee
Ronnie Sahlberg
sahlberg at samba.org
Sun Sep 12 22:31:58 MDT 2010
The branch, 1.2 has been updated
via 28673ee5551b487ee4519b8ed0774f8ce8b8d24d (commit)
via a2dbe30a8a01816d1aaec056cb83abe8cec02f4b (commit)
from 3468afea3b49926870d76865df5a03f91e8411af (commit)
http://gitweb.samba.org/?p=sahlberg/ctdb.git;a=shortlog;h=1.2
- Log -----------------------------------------------------------------
commit 28673ee5551b487ee4519b8ed0774f8ce8b8d24d
Author: Ronnie Sahlberg <ronniesahlberg at gmail.com>
Date: Mon Sep 13 14:28:11 2010 +1000
Implement a new function GETNODEMAP in libctdb.
This function returns a pointer to a nodemap structure.
The returned structure must later be freed by calling ctdb_free_nodemap().
Move the definition of ctdb_sock_addr from ctdb_client.h to ctdb_protocol.h
Move the definition of the node flags, ctdb_node_and_flags and ctdb_node_map from ctdb_private.h to ctdb_protocol.h
Add both sync and async example for ctdb_getnodemap to the test application libctdb/tst.c
commit a2dbe30a8a01816d1aaec056cb83abe8cec02f4b
Author: Ronnie Sahlberg <ronniesahlberg at gmail.com>
Date: Mon Sep 13 13:12:41 2010 +1000
remove an unused variable
-----------------------------------------------------------------------
Summary of changes:
include/ctdb.h | 65 +++++++++++++++++++++++++++++++++++++++++-
include/ctdb_client.h | 11 -------
include/ctdb_private.h | 22 --------------
include/ctdb_protocol.h | 46 +++++++++++++++++++++++++++++
libctdb/control.c | 48 +++++++++++++++++++++++++++++++
libctdb/io_elem.c | 1 +
libctdb/sync.c | 19 ++++++++++++
libctdb/tst.c | 73 ++++++++++++++++++++++++++++++++++++++++++++++-
server/ctdb_takeover.c | 2 +-
9 files changed, 251 insertions(+), 36 deletions(-)
Changeset truncated at 500 lines:
diff --git a/include/ctdb.h b/include/ctdb.h
index 95376ce..92f4626 100644
--- a/include/ctdb.h
+++ b/include/ctdb.h
@@ -26,6 +26,7 @@
#include <stdarg.h>
#include <stdio.h>
#include <tdb.h>
+#include <netinet/in.h>
#include <ctdb_protocol.h>
/**
@@ -411,6 +412,38 @@ bool ctdb_getpnn_recv(struct ctdb_connection *ctdb,
/**
+ * ctdb_getnodemap_send - read the nodemap number from a node.
+ * @ctdb: the ctdb_connection from ctdb_connect.
+ * @destnode: the destination node (see below)
+ * @callback: the callback when ctdb replies to our message (typesafe)
+ * @cbdata: the argument to callback()
+ *
+ * There are several special values for destnode, detailed in
+ * ctdb_protocol.h, particularly CTDB_CURRENT_NODE which means the
+ * local ctdbd.
+ */
+struct ctdb_request *
+ctdb_getnodemap_send(struct ctdb_connection *ctdb,
+ uint32_t destnode,
+ ctdb_callback_t callback,
+ void *cbdata);
+/**
+ * ctdb_getnodemap_recv - read an ctdb_getnodemap reply from ctdbd
+ * @ctdb: the ctdb_connection from ctdb_connect.
+ * @req: the completed request.
+ * @nodemap: a pointer to the returned nodemap structure
+ *
+ * This returns false if something went wrong.
+ * If the command failed, it guarantees to set nodemap to NULL.
+ * A non-NULL value for nodemap means the command was successful.
+ *
+ * A non-NULL value of the nodemap must be release released/freed
+ * by ctdb_free_nodemap().
+ */
+bool ctdb_getnodemap_recv(struct ctdb_connection *ctdb,
+ struct ctdb_request *req, struct ctdb_node_map **nodemap);
+
+/**
* ctdb_getrecmaster_send - read the recovery master of a node
* @ctdb: the ctdb_connection from ctdb_connect.
* @destnode: the destination node (see below)
@@ -424,7 +457,7 @@ bool ctdb_getpnn_recv(struct ctdb_connection *ctdb,
struct ctdb_request *
ctdb_getrecmaster_send(struct ctdb_connection *ctdb,
uint32_t destnode,
- ctdb_callback_t callback, void *cbdata);
+ ctdb_callback_t callback, void *cbdata);
/**
* ctdb_getrecmaster_recv - read an ctdb_getrecmaster reply from ctdbd
@@ -555,6 +588,31 @@ bool ctdb_getrecmaster(struct ctdb_connection *ctdb,
uint32_t destnode,
uint32_t *recmaster);
+
+/**
+ * ctdb_getnodemap - read the nodemap from a node (synchronous)
+ * @ctdb: the ctdb_connection from ctdb_connect.
+ * @destnode: the destination node (see below)
+ * @nodemap: a pointer to the nodemap to fill in
+ *
+ * There are several special values for destnode, detailed in
+ * ctdb_protocol.h, particularly CTDB_CURRENT_NODE which means the
+ * local ctdbd.
+ *
+ * Returns true and fills in *nodemap on success.
+ * A non-NULL nodemap must be freed by calling ctdb_free_nodemap.
+ */
+bool ctdb_getnodemap(struct ctdb_connection *ctdb,
+ uint32_t destnode, struct ctdb_node_map **nodemap);
+
+/*
+ * This function is used to release/free the nodemap structure returned
+ * by ctdb_getnodemap() and ctdb_getnodemap_recv()
+ */
+void ctdb_free_nodemap(struct ctdb_node_map *nodemap);
+
+
+
/* These ugly macro wrappers make the callbacks typesafe. */
#include <ctdb_typesafe_cb.h>
#define ctdb_sendcb(cb, cbdata) \
@@ -606,4 +664,9 @@ bool ctdb_getrecmaster(struct ctdb_connection *ctdb,
#define ctdb_getrecmaster_send(ctdb, destnode, cb, cbdata) \
ctdb_getrecmaster_send((ctdb), (destnode), \
ctdb_sendcb((cb), (cbdata)), (cbdata))
+
+#define ctdb_getnodemap_send(ctdb, destnode, cb, cbdata) \
+ ctdb_getnodemap_send((ctdb), (destnode), \
+ ctdb_sendcb((cb), (cbdata)), (cbdata))
+
#endif
diff --git a/include/ctdb_client.h b/include/ctdb_client.h
index 8fedfde..16ed9c0 100644
--- a/include/ctdb_client.h
+++ b/include/ctdb_client.h
@@ -451,17 +451,6 @@ struct ctdb_uptime {
};
/*
- definitions for different socket structures
- */
-typedef struct sockaddr_in ctdb_addr_in;
-typedef struct sockaddr_in6 ctdb_addr_in6;
-typedef union {
- struct sockaddr sa;
- ctdb_addr_in ip;
- ctdb_addr_in6 ip6;
-} ctdb_sock_addr;
-
-/*
struct for tcp_client control
this is an ipv4 only version of this structure used by samba
samba will later be migrated over to use the
diff --git a/include/ctdb_private.h b/include/ctdb_private.h
index 66558d4..b707afd 100644
--- a/include/ctdb_private.h
+++ b/include/ctdb_private.h
@@ -205,14 +205,6 @@ struct ctdb_node {
const char *name; /* for debug messages */
void *private_data; /* private to transport */
uint32_t pnn;
-#define NODE_FLAGS_DISCONNECTED 0x00000001 /* node isn't connected */
-#define NODE_FLAGS_UNHEALTHY 0x00000002 /* monitoring says node is unhealthy */
-#define NODE_FLAGS_PERMANENTLY_DISABLED 0x00000004 /* administrator has disabled node */
-#define NODE_FLAGS_BANNED 0x00000008 /* recovery daemon has banned the node */
-#define NODE_FLAGS_DELETED 0x00000010 /* this node has been deleted */
-#define NODE_FLAGS_STOPPED 0x00000020 /* this node has been stopped */
-#define NODE_FLAGS_DISABLED (NODE_FLAGS_UNHEALTHY|NODE_FLAGS_PERMANENTLY_DISABLED)
-#define NODE_FLAGS_INACTIVE (NODE_FLAGS_DELETED|NODE_FLAGS_DISCONNECTED|NODE_FLAGS_BANNED|NODE_FLAGS_STOPPED)
uint32_t flags;
/* used by the dead node monitoring */
@@ -879,20 +871,6 @@ struct ctdb_control_list_tunable {
};
-/* table that contains a list of all nodes a ctdb knows about and their
- status
- */
-struct ctdb_node_and_flags {
- uint32_t pnn;
- uint32_t flags;
- ctdb_sock_addr addr;
-};
-
-struct ctdb_node_map {
- uint32_t num;
- struct ctdb_node_and_flags nodes[1];
-};
-
struct ctdb_node_and_flagsv4 {
uint32_t pnn;
uint32_t flags;
diff --git a/include/ctdb_protocol.h b/include/ctdb_protocol.h
index df6e90c..8c90675 100644
--- a/include/ctdb_protocol.h
+++ b/include/ctdb_protocol.h
@@ -452,4 +452,50 @@ struct ctdb_ltdb_header {
uint32_t laccessor;
uint32_t lacount;
};
+
+
+/*
+ definitions for different socket structures
+ */
+typedef struct sockaddr_in ctdb_addr_in;
+typedef struct sockaddr_in6 ctdb_addr_in6;
+typedef union {
+ struct sockaddr sa;
+ ctdb_addr_in ip;
+ ctdb_addr_in6 ip6;
+} ctdb_sock_addr;
+
+/*
+ A structure describing a single node, its flags and its address
+*/
+struct ctdb_node_and_flags {
+ uint32_t pnn;
+ uint32_t flags;
+ ctdb_sock_addr addr;
+};
+
+
+/*
+ Structure used for a nodemap.
+ The nodemap is the structure containing a list of all nodes
+ known to the cluster and their associated flags.
+*/
+struct ctdb_node_map {
+ uint32_t num;
+ struct ctdb_node_and_flags nodes[1];
+};
+
+/*
+ * Node flags
+ */
+#define NODE_FLAGS_DISCONNECTED 0x00000001 /* node isn't connected */
+#define NODE_FLAGS_UNHEALTHY 0x00000002 /* monitoring says node is unhealthy */
+#define NODE_FLAGS_PERMANENTLY_DISABLED 0x00000004 /* administrator has disabled node */
+#define NODE_FLAGS_BANNED 0x00000008 /* recovery daemon has banned the node */
+#define NODE_FLAGS_DELETED 0x00000010 /* this node has been deleted */
+#define NODE_FLAGS_STOPPED 0x00000020 /* this node has been stopped */
+#define NODE_FLAGS_DISABLED (NODE_FLAGS_UNHEALTHY|NODE_FLAGS_PERMANENTLY_DISABLED)
+#define NODE_FLAGS_INACTIVE (NODE_FLAGS_DELETED|NODE_FLAGS_DISCONNECTED|NODE_FLAGS_BANNED|NODE_FLAGS_STOPPED)
+
+
#endif
diff --git a/libctdb/control.c b/libctdb/control.c
index d5f23f0..d193400 100644
--- a/libctdb/control.c
+++ b/libctdb/control.c
@@ -16,6 +16,7 @@
You should have received a copy of the GNU General Public License
along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
+#include <string.h>
#include <ctdb.h>
#include <ctdb_protocol.h>
#include "libctdb_private.h"
@@ -23,6 +24,7 @@
/* Remove type-safety macros. */
#undef ctdb_getrecmaster_send
#undef ctdb_getpnn_send
+#undef ctdb_getnodemap_send
bool ctdb_getrecmaster_recv(struct ctdb_connection *ctdb,
struct ctdb_request *req, uint32_t *recmaster)
@@ -76,3 +78,49 @@ struct ctdb_request *ctdb_getpnn_send(struct ctdb_connection *ctdb,
return new_ctdb_control_request(ctdb, CTDB_CONTROL_GET_PNN, destnode,
NULL, 0, callback, private_data);
}
+
+bool ctdb_getnodemap_recv(struct ctdb_connection *ctdb,
+ struct ctdb_request *req, struct ctdb_node_map **nodemap)
+{
+ struct ctdb_reply_control *reply;
+
+ *nodemap = NULL;
+ reply = unpack_reply_control(ctdb, req, CTDB_CONTROL_GET_NODEMAP);
+ if (!reply) {
+ return false;
+ }
+ if (reply->status == -1) {
+ DEBUG(ctdb, LOG_ERR, "ctdb_getnodemap_recv: status -1");
+ return false;
+ }
+ if (reply->datalen == 0) {
+ DEBUG(ctdb, LOG_ERR, "ctdb_getnodemap_recv: returned data is 0 bytes");
+ return false;
+ }
+
+ *nodemap = malloc(reply->datalen);
+ if (*nodemap == NULL) {
+ DEBUG(ctdb, LOG_ERR, "ctdb_getnodemap_recv: failed to malloc buffer");
+ return false;
+ }
+ memcpy(*nodemap, reply->data, reply->datalen);
+
+ return true;
+}
+struct ctdb_request *ctdb_getnodemap_send(struct ctdb_connection *ctdb,
+ uint32_t destnode,
+ ctdb_callback_t callback,
+ void *private_data)
+{
+ return new_ctdb_control_request(ctdb, CTDB_CONTROL_GET_NODEMAP,
+ destnode,
+ NULL, 0, callback, private_data);
+}
+
+void ctdb_free_nodemap(struct ctdb_node_map *nodemap)
+{
+ if (nodemap == NULL) {
+ return;
+ }
+ free(nodemap);
+}
diff --git a/libctdb/io_elem.c b/libctdb/io_elem.c
index e00ddda..bff21cb 100644
--- a/libctdb/io_elem.c
+++ b/libctdb/io_elem.c
@@ -25,6 +25,7 @@
#include <stdlib.h>
#include "io_elem.h"
#include <tdb.h>
+#include <netinet/in.h>
#include <ctdb_protocol.h> // For CTDB_DS_ALIGNMENT and ctdb_req_header
struct io_elem {
diff --git a/libctdb/sync.c b/libctdb/sync.c
index 2ec96d8..d0aa86a 100644
--- a/libctdb/sync.c
+++ b/libctdb/sync.c
@@ -119,6 +119,25 @@ bool ctdb_getpnn(struct ctdb_connection *ctdb,
return ret;
}
+bool ctdb_getnodemap(struct ctdb_connection *ctdb,
+ uint32_t destnode, struct ctdb_node_map **nodemap)
+{
+ struct ctdb_request *req;
+ bool done = false;
+ bool ret = false;
+
+ *nodemap = NULL;
+
+ req = synchronous(ctdb,
+ ctdb_getnodemap_send(ctdb, destnode, set, &done),
+ &done);
+ if (req != NULL) {
+ ret = ctdb_getnodemap_recv(ctdb, req, nodemap);
+ ctdb_request_free(ctdb, req);
+ }
+ return ret;
+}
+
bool ctdb_set_message_handler(struct ctdb_connection *ctdb, uint64_t srvid,
ctdb_message_fn_t handler, void *cbdata)
{
diff --git a/libctdb/tst.c b/libctdb/tst.c
index 8bf5e63..b423a48 100644
--- a/libctdb/tst.c
+++ b/libctdb/tst.c
@@ -36,14 +36,61 @@
#include <syslog.h>
#include <tdb.h>
#include <ctdb.h>
+#include <ctdb_protocol.h>
TDB_DATA key;
+
+void print_nodemap(struct ctdb_node_map *nodemap)
+{
+ int i;
+ char cip[128];
+
+ printf("number of nodes:%d\n", nodemap->num);
+ for (i=0;i<nodemap->num;i++) {
+ switch(nodemap->nodes[i].addr.sa.sa_family) {
+ case AF_INET:
+ inet_ntop(nodemap->nodes[i].addr.ip.sin_family, &nodemap->nodes[i].addr.ip.sin_addr, cip, sizeof(cip));
+ break;
+ case AF_INET6:
+ inet_ntop(nodemap->nodes[i].addr.ip6.sin6_family, &nodemap->nodes[i].addr.ip6.sin6_addr, cip, sizeof(cip));
+ break;
+ }
+
+ printf("Node:%d Address:%s Flags:%s%s%s%s%s%s\n",
+ nodemap->nodes[i].pnn,
+ cip,
+ nodemap->nodes[i].flags&NODE_FLAGS_DISCONNECTED?"DISCONNECTED ":"",
+ nodemap->nodes[i].flags&NODE_FLAGS_UNHEALTHY?"UNHEALTHY ":"",
+ nodemap->nodes[i].flags&NODE_FLAGS_PERMANENTLY_DISABLED?"ADMIN DISABLED ":"",
+ nodemap->nodes[i].flags&NODE_FLAGS_BANNED?"BANNED ":"",
+ nodemap->nodes[i].flags&NODE_FLAGS_DELETED?"DELETED ":"",
+ nodemap->nodes[i].flags&NODE_FLAGS_STOPPED?"STOPPED ":"");
+ }
+}
+
void msg_h(struct ctdb_connection *ctdb, uint64_t srvid, TDB_DATA data, void *private_data)
{
printf("Message received on port %d : %s\n", (int)srvid, data.dptr);
}
+static void gnm_cb(struct ctdb_connection *ctdb,
+ struct ctdb_request *req, void *private)
+{
+ bool status;
+ struct ctdb_node_map *nodemap;
+
+ status = ctdb_getnodemap_recv(ctdb, req, &nodemap);
+ ctdb_request_free(ctdb, req);
+ if (!status) {
+ printf("Error reading NODEMAP\n");
+ return;
+ }
+ printf("ASYNC response to getnodemap:\n");
+ print_nodemap(nodemap);
+ ctdb_free_nodemap(nodemap);
+}
+
static void pnn_cb(struct ctdb_connection *ctdb,
struct ctdb_request *req, void *private)
{
@@ -56,7 +103,7 @@ static void pnn_cb(struct ctdb_connection *ctdb,
printf("Error reading PNN\n");
return;
}
- printf("pnn:%d\n", pnn);
+ printf("ASYNC RESPONSE TO GETPNN: pnn:%d\n", pnn);
}
static void rm_cb(struct ctdb_connection *ctdb,
@@ -134,6 +181,7 @@ int main(int argc, char *argv[])
struct ctdb_connection *ctdb_connection;
struct ctdb_request *handle;
struct ctdb_db *ctdb_db_context;
+ struct ctdb_node_map *nodemap;
struct pollfd pfd;
uint32_t recmaster;
TDB_DATA msg;
@@ -217,6 +265,29 @@ int main(int argc, char *argv[])
if (!rrl_cb_called) {
printf("READRECORDLOCK is async\n");
}
+
+ /*
+ * Read the nodemap from a node (async)
+ */
+ handle = ctdb_getnodemap_send(ctdb_connection, CTDB_CURRENT_NODE,
+ gnm_cb, NULL);
+ if (handle == NULL) {
+ printf("Failed to send get_nodemap control\n");
+ exit(10);
+ }
+
+ /*
+ * Read the nodemap from a node (sync)
+ */
+ if (!ctdb_getnodemap(ctdb_connection, CTDB_CURRENT_NODE,
+ &nodemap)) {
+ printf("Failed to receive response to getrecmaster\n");
+ exit(10);
+ }
+ printf("SYNC response to getnodemap:\n");
+ print_nodemap(nodemap);
+ ctdb_free_nodemap(nodemap);
+
for (;;) {
pfd.events = ctdb_which_events(ctdb_connection);
diff --git a/server/ctdb_takeover.c b/server/ctdb_takeover.c
index 06494c8..1931294 100644
--- a/server/ctdb_takeover.c
+++ b/server/ctdb_takeover.c
@@ -1215,7 +1215,7 @@ create_merged_ip_list(struct ctdb_context *ctdb)
*/
int ctdb_takeover_run(struct ctdb_context *ctdb, struct ctdb_node_map *nodemap)
{
- int i, num_healthy, retries, num_ips;
+ int i, num_healthy, retries;
struct ctdb_public_ip ip;
struct ctdb_public_ipv4 ipv4;
uint32_t mask, *nodes;
--
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