From c9f04d8648cfdd573d45d47467bc964ef01f754d Mon Sep 17 00:00:00 2001 From: Andrew Tridgell Date: Mon, 16 Apr 2007 00:18:54 +0000 Subject: r22231: merge from bzr ctdb tree (This used to be commit 807b959082d3b9a929c9f6597714e636638a940e) --- source4/cluster/ctdb/tests/1node.txt | 1 + source4/cluster/ctdb/tests/4nodes.txt | 4 + source4/cluster/ctdb/tests/bench-ssh.sh | 43 +++++ source4/cluster/ctdb/tests/bench.sh | 9 + source4/cluster/ctdb/tests/bench1.sh | 8 + source4/cluster/ctdb/tests/ctdb_bench.c | 13 +- source4/cluster/ctdb/tests/ctdb_fetch.c | 13 +- source4/cluster/ctdb/tests/ctdb_fetch1.c | 274 ++++++++++++++++++++++++++++ source4/cluster/ctdb/tests/ctdb_messaging.c | 187 +++++++++++++++++++ source4/cluster/ctdb/tests/ctdb_test.c | 22 ++- source4/cluster/ctdb/tests/fetch.sh | 9 + source4/cluster/ctdb/tests/fetch1.sh | 8 + source4/cluster/ctdb/tests/messaging.sh | 9 + source4/cluster/ctdb/tests/nodes.txt | 2 + source4/cluster/ctdb/tests/test.sh | 35 ++++ source4/cluster/ctdb/tests/test1.sh | 8 + 16 files changed, 633 insertions(+), 12 deletions(-) create mode 100644 source4/cluster/ctdb/tests/1node.txt create mode 100644 source4/cluster/ctdb/tests/4nodes.txt create mode 100755 source4/cluster/ctdb/tests/bench-ssh.sh create mode 100755 source4/cluster/ctdb/tests/bench.sh create mode 100755 source4/cluster/ctdb/tests/bench1.sh create mode 100644 source4/cluster/ctdb/tests/ctdb_fetch1.c create mode 100644 source4/cluster/ctdb/tests/ctdb_messaging.c create mode 100755 source4/cluster/ctdb/tests/fetch.sh create mode 100755 source4/cluster/ctdb/tests/fetch1.sh create mode 100755 source4/cluster/ctdb/tests/messaging.sh create mode 100644 source4/cluster/ctdb/tests/nodes.txt create mode 100755 source4/cluster/ctdb/tests/test.sh create mode 100755 source4/cluster/ctdb/tests/test1.sh (limited to 'source4/cluster/ctdb/tests') diff --git a/source4/cluster/ctdb/tests/1node.txt b/source4/cluster/ctdb/tests/1node.txt new file mode 100644 index 0000000000..db4350c0c0 --- /dev/null +++ b/source4/cluster/ctdb/tests/1node.txt @@ -0,0 +1 @@ +127.0.0.1:9001 diff --git a/source4/cluster/ctdb/tests/4nodes.txt b/source4/cluster/ctdb/tests/4nodes.txt new file mode 100644 index 0000000000..880fe914ff --- /dev/null +++ b/source4/cluster/ctdb/tests/4nodes.txt @@ -0,0 +1,4 @@ +127.0.0.1:9001 +127.0.0.2:9001 +127.0.0.3:9001 +127.0.0.4:9001 diff --git a/source4/cluster/ctdb/tests/bench-ssh.sh b/source4/cluster/ctdb/tests/bench-ssh.sh new file mode 100755 index 0000000000..0d11ee9cdd --- /dev/null +++ b/source4/cluster/ctdb/tests/bench-ssh.sh @@ -0,0 +1,43 @@ +#!/bin/sh + +if [ $# -lt 1 ]; then + echo "Usage: bench-ssh.sh " + exit 1 +fi + +while :; do + if [ "`echo $1 | cut -c1`" = "-" -o $# -eq 0 ]; then break; fi + nodes="$nodes $1"; + shift; +done + +options=$* +dir=`pwd` + +echo "Creating nodes-ssh.txt" +rm -f nodes-ssh.txt +count=0 +for h in $nodes; do + echo "$h:9001" >> nodes-ssh.txt + count=`expr $count + 1` +done + + +echo "Killing old processes" +for h in $nodes; do + scp -q nodes-ssh.txt $h:$dir + ssh $h killall -q ctdb_bench +done + +echo "Starting nodes" +i=0 +for h in $nodes; do + if [ $i -eq `expr $count - 1` ]; then + ssh $h $dir/bin/ctdb_bench --nlist $dir/nodes-ssh.txt --listen $h:9001 $options + else + ssh -f $h $dir/bin/ctdb_bench --nlist $dir/nodes-ssh.txt --listen $h:9001 $options + fi + i=`expr $i + 1` +done + +wait diff --git a/source4/cluster/ctdb/tests/bench.sh b/source4/cluster/ctdb/tests/bench.sh new file mode 100755 index 0000000000..50e9e08f99 --- /dev/null +++ b/source4/cluster/ctdb/tests/bench.sh @@ -0,0 +1,9 @@ +#!/bin/sh + +killall -q ctdb_bench + +echo "Trying 2 nodes" +bin/ctdb_bench --nlist tests/nodes.txt --listen 127.0.0.2:9001 $* & +bin/ctdb_bench --nlist tests/nodes.txt --listen 127.0.0.1:9001 $* + +killall -q ctdb_bench diff --git a/source4/cluster/ctdb/tests/bench1.sh b/source4/cluster/ctdb/tests/bench1.sh new file mode 100755 index 0000000000..3481d82be2 --- /dev/null +++ b/source4/cluster/ctdb/tests/bench1.sh @@ -0,0 +1,8 @@ +#!/bin/sh + +killall -q ctdb_bench + +echo "Trying 1 nodes" +bin/ctdb_bench --nlist tests/1node.txt --listen 127.0.0.2:9001 $* + +killall -q ctdb_bench diff --git a/source4/cluster/ctdb/tests/ctdb_bench.c b/source4/cluster/ctdb/tests/ctdb_bench.c index 023c76e7f9..78d66f6f2c 100644 --- a/source4/cluster/ctdb/tests/ctdb_bench.c +++ b/source4/cluster/ctdb/tests/ctdb_bench.c @@ -130,10 +130,10 @@ static int msg_plus, msg_minus; handler for messages in bench_ring() */ static void ring_message_handler(struct ctdb_context *ctdb, uint32_t srvid, - TDB_DATA data, void *private) + TDB_DATA data, void *private_data) { int incr = *(int *)data.dptr; - int *count = (int *)private; + int *count = (int *)private_data; int dest; (*count)++; dest = (ctdb_get_vnn(ctdb) + incr) % ctdb_get_num_nodes(ctdb); @@ -200,6 +200,7 @@ int main(int argc, const char *argv[]) const char *transport = "tcp"; const char *myaddress = NULL; int self_connect=0; + int daemon_mode=0; struct poptOption popt_options[] = { POPT_AUTOHELP @@ -207,6 +208,7 @@ int main(int argc, const char *argv[]) { "listen", 0, POPT_ARG_STRING, &myaddress, 0, "address to listen on", "address" }, { "transport", 0, POPT_ARG_STRING, &transport, 0, "protocol transport", NULL }, { "self-connect", 0, POPT_ARG_NONE, &self_connect, 0, "enable self connect", "boolean" }, + { "daemon", 0, POPT_ARG_NONE, &daemon_mode, 0, "spawn a ctdb daemon", "boolean" }, { "timelimit", 't', POPT_ARG_INT, &timelimit, 0, "timelimit", "integer" }, { "num-records", 'r', POPT_ARG_INT, &num_records, 0, "num_records", "integer" }, { "num-msgs", 'n', POPT_ARG_INT, &num_msgs, 0, "num_msgs", "integer" }, @@ -254,6 +256,9 @@ int main(int argc, const char *argv[]) if (self_connect) { ctdb_set_flags(ctdb, CTDB_FLAG_SELF_CONNECT); } + if (daemon_mode) { + ctdb_set_flags(ctdb, CTDB_FLAG_DAEMON_MODE); + } ret = ctdb_set_transport(ctdb, transport); if (ret == -1) { @@ -286,11 +291,11 @@ int main(int argc, const char *argv[]) ret = ctdb_set_call(ctdb_db, incr_func, FUNC_INCR); ret = ctdb_set_call(ctdb_db, fetch_func, FUNC_FETCH); - ctdb_set_message_handler(ctdb, ring_message_handler, &msg_count); - /* start the protocol running */ ret = ctdb_start(ctdb); + ctdb_set_message_handler(ctdb, 0, ring_message_handler,&msg_count); + /* wait until all nodes are connected (should not be needed outside of test code) */ ctdb_connect_wait(ctdb); diff --git a/source4/cluster/ctdb/tests/ctdb_fetch.c b/source4/cluster/ctdb/tests/ctdb_fetch.c index c0491e9bb5..45e5248980 100644 --- a/source4/cluster/ctdb/tests/ctdb_fetch.c +++ b/source4/cluster/ctdb/tests/ctdb_fetch.c @@ -87,7 +87,7 @@ static void bench_fetch_1node(struct ctdb_context *ctdb) msg_count, ctdb_get_vnn(ctdb)); data.dsize = strlen((const char *)data.dptr)+1; - ret = ctdb_record_store(rec, data); + ret = ctdb_store_unlock(rec, data); if (ret != 0) { printf("Failed to store record\n"); } @@ -106,7 +106,7 @@ static void bench_fetch_1node(struct ctdb_context *ctdb) handler for messages in bench_ring() */ static void message_handler(struct ctdb_context *ctdb, uint32_t srvid, - TDB_DATA data, void *private) + TDB_DATA data, void *private_data) { msg_count++; bench_fetch_1node(ctdb); @@ -167,6 +167,7 @@ int main(int argc, const char *argv[]) const char *transport = "tcp"; const char *myaddress = NULL; int self_connect=0; + int daemon_mode=0; struct poptOption popt_options[] = { POPT_AUTOHELP @@ -174,6 +175,7 @@ int main(int argc, const char *argv[]) { "listen", 0, POPT_ARG_STRING, &myaddress, 0, "address to listen on", "address" }, { "transport", 0, POPT_ARG_STRING, &transport, 0, "protocol transport", NULL }, { "self-connect", 0, POPT_ARG_NONE, &self_connect, 0, "enable self connect", "boolean" }, + { "daemon", 0, POPT_ARG_NONE, &daemon_mode, 0, "spawn a ctdb daemon", "boolean" }, { "timelimit", 't', POPT_ARG_INT, &timelimit, 0, "timelimit", "integer" }, { "num-records", 'r', POPT_ARG_INT, &num_records, 0, "num_records", "integer" }, { "num-msgs", 'n', POPT_ARG_INT, &num_msgs, 0, "num_msgs", "integer" }, @@ -222,6 +224,9 @@ int main(int argc, const char *argv[]) if (self_connect) { ctdb_set_flags(ctdb, CTDB_FLAG_SELF_CONNECT); } + if (daemon_mode) { + ctdb_set_flags(ctdb, CTDB_FLAG_DAEMON_MODE); + } ret = ctdb_set_transport(ctdb, transport); if (ret == -1) { @@ -252,11 +257,11 @@ int main(int argc, const char *argv[]) ret = ctdb_set_call(ctdb_db, fetch_func, FUNC_FETCH); - ctdb_set_message_handler(ctdb, message_handler, &msg_count); - /* start the protocol running */ ret = ctdb_start(ctdb); + ctdb_set_message_handler(ctdb, 0, message_handler, &msg_count); + /* wait until all nodes are connected (should not be needed outside of test code) */ ctdb_connect_wait(ctdb); diff --git a/source4/cluster/ctdb/tests/ctdb_fetch1.c b/source4/cluster/ctdb/tests/ctdb_fetch1.c new file mode 100644 index 0000000000..8071256a43 --- /dev/null +++ b/source4/cluster/ctdb/tests/ctdb_fetch1.c @@ -0,0 +1,274 @@ +/* + simple ctdb fetch test + + Copyright (C) Andrew Tridgell 2006 + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2 of the License, or (at your option) any later version. + + This library 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. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with this library; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +*/ + +#include "includes.h" +#include "lib/events/events.h" +#include "system/filesys.h" +#include "popt.h" +#include "ctdb.h" +#include "ctdb_private.h" + +#define PARENT_SRVID 0 +#define CHILD1_SRVID 1 +#define CHILD2_SRVID 2 + +int num_msg=0; + +static void message_handler(struct ctdb_context *ctdb, uint32_t srvid, + TDB_DATA data, void *private_data) +{ + num_msg++; +} +static void child_handler(struct ctdb_context *ctdb, uint32_t srvid, + TDB_DATA data, void *private_data) +{ + num_msg++; +} + +void test1(struct ctdb_db_context *ctdb_db) +{ + struct ctdb_record_handle *rh; + TDB_DATA key, data, data2, store_data; + int ret; + + /* + test 1 : write data and read it back. should all be the same + */ + printf("Test1: write and verify we can read it back: "); + key.dptr = discard_const("Record"); + key.dsize = strlen((const char *)key.dptr)+1; + rh = ctdb_fetch_lock(ctdb_db, ctdb_db, key, &data); + + store_data.dptr = discard_const("data to store"); + store_data.dsize = strlen((const char *)store_data.dptr)+1; + ret = ctdb_store_unlock(rh, store_data); + + rh = ctdb_fetch_lock(ctdb_db, ctdb_db, key, &data2); + /* hopefully data2 will now contain the record written above */ + if (!strcmp("data to store", (const char *)data2.dptr)) { + printf("SUCCESS\n"); + } else { + printf("FAILURE\n"); + exit(10); + } + + /* just write it back to unlock it */ + ret = ctdb_store_unlock(rh, store_data); +} + +void child(int srvid, struct event_context *ev, struct ctdb_context *ctdb, struct ctdb_db_context *ctdb_db) +{ + TDB_DATA data; + struct ctdb_record_handle *rh; + TDB_DATA key, data2; + + data.dptr=discard_const("dummy message"); + data.dsize=strlen((const char *)data.dptr)+1; + + ctdb_set_message_handler(ctdb, srvid, child_handler, NULL); + + ctdb_send_message(ctdb, ctdb_get_vnn(ctdb), PARENT_SRVID, data); + while (num_msg==0) { + event_loop_once(ev); + } + + + /* fetch and lock the record */ + key.dptr = discard_const("Record"); + key.dsize = strlen((const char *)key.dptr)+1; + rh = ctdb_fetch_lock(ctdb_db, ctdb_db, key, &data2); + ctdb_send_message(ctdb, ctdb_get_vnn(ctdb), PARENT_SRVID, data); + + + while (1) { + event_loop_once(ev); + } +} + +/* + main program +*/ +int main(int argc, const char *argv[]) +{ + struct ctdb_context *ctdb; + struct ctdb_db_context *ctdb_db; + const char *nlist = NULL; + const char *transport = "tcp"; + const char *myaddress = NULL; + int self_connect=0; + int daemon_mode=0; + TDB_DATA data; + + struct poptOption popt_options[] = { + POPT_AUTOHELP + { "nlist", 0, POPT_ARG_STRING, &nlist, 0, "node list file", "filename" }, + { "listen", 0, POPT_ARG_STRING, &myaddress, 0, "address to listen on", "address" }, + { "transport", 0, POPT_ARG_STRING, &transport, 0, "protocol transport", NULL }, + { "self-connect", 0, POPT_ARG_NONE, &self_connect, 0, "enable self connect", "boolean" }, + { "daemon", 0, POPT_ARG_NONE, &daemon_mode, 0, "spawn a ctdb daemon", "boolean" }, + POPT_TABLEEND + }; + int opt; + const char **extra_argv; + int extra_argc = 0; + int ret; + poptContext pc; + struct event_context *ev; + + pc = poptGetContext(argv[0], argc, argv, popt_options, POPT_CONTEXT_KEEP_FIRST); + + while ((opt = poptGetNextOpt(pc)) != -1) { + switch (opt) { + default: + fprintf(stderr, "Invalid option %s: %s\n", + poptBadOption(pc, 0), poptStrerror(opt)); + exit(1); + } + } + + /* setup the remaining options for the main program to use */ + extra_argv = poptGetArgs(pc); + if (extra_argv) { + extra_argv++; + while (extra_argv[extra_argc]) extra_argc++; + } + + if (nlist == NULL || myaddress == NULL) { + printf("You must provide a node list with --nlist and an address with --listen\n"); + exit(1); + } + + ev = event_context_init(NULL); + + /* initialise ctdb */ + ctdb = ctdb_init(ev); + if (ctdb == NULL) { + printf("Failed to init ctdb\n"); + exit(1); + } + + if (self_connect) { + ctdb_set_flags(ctdb, CTDB_FLAG_SELF_CONNECT); + } + if (daemon_mode) { + ctdb_set_flags(ctdb, CTDB_FLAG_DAEMON_MODE); + } + + ret = ctdb_set_transport(ctdb, transport); + if (ret == -1) { + printf("ctdb_set_transport failed - %s\n", ctdb_errstr(ctdb)); + exit(1); + } + + /* tell ctdb what address to listen on */ + ret = ctdb_set_address(ctdb, myaddress); + if (ret == -1) { + printf("ctdb_set_address failed - %s\n", ctdb_errstr(ctdb)); + exit(1); + } + + /* tell ctdb what nodes are available */ + ret = ctdb_set_nlist(ctdb, nlist); + if (ret == -1) { + printf("ctdb_set_nlist failed - %s\n", ctdb_errstr(ctdb)); + exit(1); + } + + /* attach to a specific database */ + ctdb_db = ctdb_attach(ctdb, "test.tdb", TDB_DEFAULT, O_RDWR|O_CREAT|O_TRUNC, 0666); + if (!ctdb_db) { + printf("ctdb_attach failed - %s\n", ctdb_errstr(ctdb)); + exit(1); + } + + /* start the protocol running */ + ret = ctdb_start(ctdb); + +#if 0 + /* wait until all nodes are connected (should not be needed + outside of test code) */ + ctdb_connect_wait(ctdb); +#endif + + /* + start two child processes + */ + if(fork()){ + /* + set up a message handler so our child processes can talk to us + */ + ctdb_set_message_handler(ctdb, PARENT_SRVID, message_handler, NULL); + } else { + sleep(3); + if(!fork()){ + child(CHILD1_SRVID, ev, ctdb, ctdb_db); + } else { + child(CHILD2_SRVID, ev, ctdb, ctdb_db); + } + } + + /* + test 1 : write data and read it back. + */ + test1(ctdb_db); + + /* + wait until both children have sent us a message they have started + */ + printf("Wait for both child processes to start: "); + while (num_msg!=2) { + event_loop_once(ev); + } + printf("STARTED\n"); + + + /* + send message to child 1 to make it to fetch and lock the record + */ + data.dptr=discard_const("dummy message"); + data.dsize=strlen((const char *)data.dptr)+1; + printf("Send message to child 1 to fetch_lock the record\n"); + ctdb_send_message(ctdb, ctdb_get_vnn(ctdb), CHILD1_SRVID, data); + + /* wait for child 1 to complete fetching and locking the record */ + while (num_msg!=3) { + event_loop_once(ev); + } + printf("Child 1 has fetched and locked the record\n"); + + /* now tell child 2 to fetch and lock the same record */ + printf("Send message to child 2 to fetch_lock the record\n"); + ctdb_send_message(ctdb, ctdb_get_vnn(ctdb), CHILD2_SRVID, data); + + /* wait for child 2 to complete fetching and locking the record */ + while (num_msg!=4) { + event_loop_once(ev); + } + printf("Child 2 has fetched and locked the record\n"); + + + while (1) { + event_loop_once(ev); + } + + /* shut it down */ + talloc_free(ctdb); + return 0; +} diff --git a/source4/cluster/ctdb/tests/ctdb_messaging.c b/source4/cluster/ctdb/tests/ctdb_messaging.c new file mode 100644 index 0000000000..050f14de38 --- /dev/null +++ b/source4/cluster/ctdb/tests/ctdb_messaging.c @@ -0,0 +1,187 @@ +/* + test of messaging + + Copyright (C) Andrew Tridgell 2006 + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2 of the License, or (at your option) any later version. + + This library 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. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with this library; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +*/ + +#include "includes.h" +#include "lib/events/events.h" +#include "system/filesys.h" +#include "popt.h" + +static int timelimit = 10; +static int num_records = 10; +static int num_msgs = 1; +static int num_repeats = 100; +static int num_clients = 2; + + +/* + handler for messages in bench_ring() +*/ +static void message_handler(struct ctdb_context *ctdb, uint32_t srvid, + TDB_DATA data, void *private_data) +{ + printf("client vnn:%d received a message to srvid:%d [%s]\n",ctdb_get_vnn(ctdb),srvid,data.dptr); + fflush(stdout); +} + +/* + main program +*/ +int main(int argc, const char *argv[]) +{ + struct ctdb_context *ctdb; + struct ctdb_db_context *ctdb_db; + const char *nlist = NULL; + const char *transport = "tcp"; + const char *myaddress = NULL; + int self_connect=0; + int daemon_mode=0; + char buf[256]; + + struct poptOption popt_options[] = { + POPT_AUTOHELP + { "nlist", 0, POPT_ARG_STRING, &nlist, 0, "node list file", "filename" }, + { "listen", 0, POPT_ARG_STRING, &myaddress, 0, "address to listen on", "address" }, + { "transport", 0, POPT_ARG_STRING, &transport, 0, "protocol transport", NULL }, + { "self-connect", 0, POPT_ARG_NONE, &self_connect, 0, "enable self connect", "boolean" }, + { "daemon", 0, POPT_ARG_NONE, &daemon_mode, 0, "spawn a ctdb daemon", "boolean" }, + { "timelimit", 't', POPT_ARG_INT, &timelimit, 0, "timelimit", "integer" }, + { "num-records", 'r', POPT_ARG_INT, &num_records, 0, "num_records", "integer" }, + { "num-msgs", 'n', POPT_ARG_INT, &num_msgs, 0, "num_msgs", "integer" }, + { "num-clients", 0, POPT_ARG_INT, &num_clients, 0, "num_clients", "integer" }, + POPT_TABLEEND + }; + int opt; + const char **extra_argv; + int extra_argc = 0; + int ret, i, j; + poptContext pc; + struct event_context *ev; + pid_t pid; + int srvid; + TDB_DATA data; + + pc = poptGetContext(argv[0], argc, argv, popt_options, POPT_CONTEXT_KEEP_FIRST); + + while ((opt = poptGetNextOpt(pc)) != -1) { + switch (opt) { + default: + fprintf(stderr, "Invalid option %s: %s\n", + poptBadOption(pc, 0), poptStrerror(opt)); + exit(1); + } + } + + /* setup the remaining options for the main program to use */ + extra_argv = poptGetArgs(pc); + if (extra_argv) { + extra_argv++; + while (extra_argv[extra_argc]) extra_argc++; + } + + if (nlist == NULL || myaddress == NULL) { + printf("You must provide a node list with --nlist and an address with --listen\n"); + exit(1); + } + + ev = event_context_init(NULL); + + /* initialise ctdb */ + ctdb = ctdb_init(ev); + if (ctdb == NULL) { + printf("Failed to init ctdb\n"); + exit(1); + } + + if (self_connect) { + ctdb_set_flags(ctdb, CTDB_FLAG_SELF_CONNECT); + } + if (daemon_mode) { + ctdb_set_flags(ctdb, CTDB_FLAG_DAEMON_MODE); + } + + ret = ctdb_set_transport(ctdb, transport); + if (ret == -1) { + printf("ctdb_set_transport failed - %s\n", ctdb_errstr(ctdb)); + exit(1); + } + + /* tell ctdb what address to listen on */ + ret = ctdb_set_address(ctdb, myaddress); + if (ret == -1) { + printf("ctdb_set_address failed - %s\n", ctdb_errstr(ctdb)); + exit(1); + } + + /* tell ctdb what nodes are available */ + ret = ctdb_set_nlist(ctdb, nlist); + if (ret == -1) { + printf("ctdb_set_nlist failed - %s\n", ctdb_errstr(ctdb)); + exit(1); + } + + /* attach to a specific database */ + ctdb_db = ctdb_attach(ctdb, "test.tdb", TDB_DEFAULT, O_RDWR|O_CREAT|O_TRUNC, 0666); + if (!ctdb_db) { + printf("ctdb_attach failed - %s\n", ctdb_errstr(ctdb)); + exit(1); + } + + /* start the protocol running */ + ret = ctdb_start(ctdb); + + srvid = -1; + for (i=0;i