r20889: import ctdb cluster backend from bzr

it will be interesting to see how the build farm handles this
(This used to be commit 53be449630bd67d649a9e70cc7e25a9799c0616b)

1 files changed, 228 insertions, 0 deletions

diff --git a/source4/cluster/ctdb/tests/ctdb_bench.c b/source4/cluster/ctdb/tests/ctdb_bench.c
new file mode 100644
index 0000000000..01a8cc0f15
--- /dev/null
+++ b/source4/cluster/ctdb/tests/ctdb_bench.c
@@ -0,0 +1,228 @@
+/* 
+   simple ctdb benchmark
+
+   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 <sys/time.h>
+#include <time.h>
+
+static struct timeval tp1,tp2;
+
+static void start_timer(void)
+{
+	gettimeofday(&tp1,NULL);
+}
+
+static double end_timer(void)
+{
+	gettimeofday(&tp2,NULL);
+	return (tp2.tv_sec + (tp2.tv_usec*1.0e-6)) - 
+		(tp1.tv_sec + (tp1.tv_usec*1.0e-6));
+}
+
+
+static int timelimit = 10;
+static int num_records = 10;
+static int num_repeats = 100;
+
+enum my_functions {FUNC_INCR=1, FUNC_FETCH=2};
+
+/*
+  ctdb call function to increment an integer
+*/
+static int incr_func(struct ctdb_call *call)
+{
+	if (call->record_data.dsize == 0) {
+		call->new_data = talloc(call, TDB_DATA);
+		if (call->new_data == NULL) {
+			return CTDB_ERR_NOMEM;
+		}
+		call->new_data->dptr = talloc_size(call, 4);
+		call->new_data->dsize = 4;
+		*(uint32_t *)call->new_data->dptr = 0;
+	} else {
+		call->new_data = &call->record_data;
+	}
+	(*(uint32_t *)call->new_data->dptr)++;
+	return 0;
+}
+
+/*
+  ctdb call function to fetch a record
+*/
+static int fetch_func(struct ctdb_call *call)
+{
+	call->reply_data = &call->record_data;
+	return 0;
+}
+
+/*
+  benchmark incrementing an integer
+*/
+static void bench_incr(struct ctdb_context *ctdb)
+{
+	TDB_DATA key, data;
+	int loops=0;
+	int ret, i;
+
+	start_timer();
+
+	while (1) {
+		uint32_t v = loops % num_records;
+		key.dptr = &v;
+		key.dsize = 4;
+		for (i=0;i<num_repeats;i++) {
+			ret = ctdb_call(ctdb, key, FUNC_INCR, NULL, NULL);
+			if (ret != 0) {
+				printf("incr call failed - %s\n", ctdb_errstr(ctdb));
+				return;
+			}
+		}
+		if (num_repeats * (++loops) % 10000 == 0) {
+			if (end_timer() > timelimit) break;
+			printf("Incr: %.2f ops/sec\r", num_repeats*loops/end_timer());
+			fflush(stdout);
+		}
+	}
+
+	ret = ctdb_call(ctdb, key, FUNC_FETCH, NULL, &data);
+	if (ret == -1) {
+		printf("ctdb_call FUNC_FETCH failed - %s\n", ctdb_errstr(ctdb));
+		return;
+	}
+
+	printf("Incr: %.2f ops/sec (loops=%d val=%d)\n", 
+	       num_repeats*loops/end_timer(), loops, *(uint32_t *)data.dptr);
+}
+
+/*
+  main program
+*/
+int main(int argc, const char *argv[])
+{
+	struct ctdb_context *ctdb;
+	const char *nlist = NULL;
+	const char *transport = "tcp";
+	const char *myaddress = NULL;
+	int self_connect=0;
+
+	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" },
+		{ "timelimit", 't', POPT_ARG_INT, &timelimit, 0, "timelimit", "integer" },
+		{ "num-records", 'r', POPT_ARG_INT, &num_records, 0, "num_records", "integer" },
+		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);
+	}
+
+	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);
+	}
+
+	/* setup a ctdb call function */
+	ret = ctdb_set_call(ctdb, incr_func,  FUNC_INCR);
+	ret = ctdb_set_call(ctdb, fetch_func, FUNC_FETCH);
+
+	/* attach to a specific database */
+	ret = ctdb_attach(ctdb, "test.tdb", TDB_DEFAULT, O_RDWR|O_CREAT|O_TRUNC, 0666);
+	if (ret == -1) {
+		printf("ctdb_attach failed - %s\n", ctdb_errstr(ctdb));
+		exit(1);
+	}
+
+	/* start the protocol running */
+	ret = ctdb_start(ctdb);
+
+	/* wait until all nodes are connected (should not be needed
+	   outside of test code) */
+	ctdb_connect_wait(ctdb);
+
+	bench_incr(ctdb);
+       
+	/* go into a wait loop to allow other nodes to complete */
+	ctdb_wait_loop(ctdb);
+
+	/* shut it down */
+	talloc_free(ctdb);
+	return 0;
+}