Hello.
I'm going to work on adminstration tools of NFS and NFSv4 for Linux.
First of all, I'd like to know if the commands showmount and nfsstat have been
updated for NFSv4? Are there people currently working on them?
Webmin seems to be the most used GUI on Linux. Do you have suggestions about
others useful administrative utilities? Does anyone of you use, or plan to
use CIM/WBEM?
Any ideas are welcome.
Thanks.
Frederic.
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On Fri, 2004-04-02 at 10:59, Jolly Frederic wrote:
> Hello.
>
> I'm going to work on adminstration tools of NFS and NFSv4 for Linux.
>
> First of all, I'd like to know if the commands showmount and nfsstat have been
> updated for NFSv4? Are there people currently working on them?
Showmount isn't really needed for NFSv4: you can (and usually will)
always mount "/". All the exported directories will then appear as
subdirectories of this pseudofilesystem.
nfsstat does want updating though. I'm not sure if Chuck and Olaf are
working on that as part of their iostat updates. Guys?
Cheers,
Trond
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> nfsstat does want updating though. I'm not sure if Chuck and=20
> Olaf are working on that as part of their iostat updates. Guys?
i'm not, but steve dickson might be.
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--- ./utils/nfsstat/nfsstat.man.orig 2003-12-30 05:54:35.000000000 -0500
+++ ./utils/nfsstat/nfsstat.man 2003-12-30 10:28:46.000000000 -0500
@@ -13,6 +13,9 @@ The
displays statistics kept about NFS client and server activity.
.SH OPTIONS
.TP
+.B -a
+Print all statistics.
+.TP
.B -s
Print only server-side statistics. The default is to print both server and
client statistics.
@@ -49,6 +52,20 @@ total number of lookups, and the number
Usage information on the server's request reply cache, including the
total number of lookups, and the number of hits and misses.
.RE
+.TP
+.B -z
+Zeros out all or some of the statistics. Typical uses would be:
+.RS 10
+nfsstat -z - zeros all statistics
+.br
+nfsstat -zc - zeros only client statistics
+.br
+nfsstat -zs - zeros only server statistics
+.br
+nfsstat -zr - zeros only RPC statistics
+.br
+nfsstat -zn - zeros only NFS call statistics
+.RE
.SH EXAMPLES
.\" --------------------- FILES ----------------------------------
.SH FILES
--- ./utils/nfsstat/nfsstat.c.orig 2003-12-30 05:54:35.000000000 -0500
+++ ./utils/nfsstat/nfsstat.c 2003-12-30 10:25:44.000000000 -0500
@@ -107,6 +107,7 @@ static void print_numbers(const char *,
static void print_callstats(const char *, const char **,
unsigned int *, unsigned int);
static int parse_statfile(const char *, struct statinfo *);
+static int zero_statfile(int, int , int);
static statinfo *get_stat_info(const char *, struct statinfo *);
@@ -118,6 +119,8 @@ static statinfo *get_stat_info(const ch
#define PRNT_RC 0x0010
#define PRNT_ALL 0xffff
+static int opt_prt = 0;
+
int
main(int argc, char **argv)
{
@@ -126,7 +129,7 @@ main(int argc, char **argv)
opt_clt = 0,
srv_info = 0,
clt_info = 0,
- opt_prt = 0;
+ opt_zero = 0;
int c;
while ((c = getopt(argc, argv, "acno:rsz")) != -1) {
@@ -164,9 +167,8 @@ main(int argc, char **argv)
opt_srv = 1;
break;
case 'z':
- fprintf(stderr, "nfsstat: zeroing of nfs statistics "
- "not yet supported\n");
- return 2;
+ opt_zero = 1;
+ break;
}
}
@@ -186,6 +188,12 @@ main(int argc, char **argv)
"server.\n");
}
+ if (opt_zero) {
+ if (opt_srv || opt_clt) {
+ if (zero_statfile(opt_srv, opt_clt, opt_prt))
+ return 1;
+ }
+ }
if (opt_srv) {
srv_info = parse_statfile(NFSSVCSTAT, svcinfo);
if (srv_info == 0 && opt_clt == 0) {
@@ -206,6 +214,7 @@ main(int argc, char **argv)
opt_clt = 0;
}
+
if (opt_srv) {
if (opt_prt & PRNT_NET) {
print_numbers(
@@ -329,11 +338,15 @@ print_callstats(const char *hdr, const c
unsigned long long pct;
int i, j;
- fputs(hdr, stdout);
for (i = 0, total = 0; i < nr; i++)
total += info[i];
+ if ((opt_prt & PRNT_ALL) != PRNT_ALL) {
+ if (!total)
+ return;
+ }
if (!total)
total = 1;
+ fputs(hdr, stdout);
for (i = 0; i < nr; i += 6) {
for (j = 0; j < 6 && i + j < nr; j++)
printf("%-11s", names[i+j]);
@@ -346,6 +359,93 @@ print_callstats(const char *hdr, const c
}
printf("\n");
}
+static int
+zero_statfile(int opt_srv, int opt_clt, int what)
+{
+ FILE *fp=NULL;
+ struct stat sb;
+
+ if (getuid() != 0) {
+ fprintf(stderr, "nfsstat: Only root can zero nfs statistics\n");
+ return 1;
+ }
+ if (opt_srv) {
+ /*
+ * See if NFSSVCSTAT exists. If so, get the mode bits and open it
+ */
+ if (stat(NFSSVCSTAT, &sb) < 0) {
+ if (!opt_clt) {
+ switch(errno) {
+ case ENOENT:
+ fprintf(stderr, "nfsstat: Server not started\n");
+ break;
+ default:
+ fprintf(stderr, "nfsstat: Unable to stat statistics file: %s: %m\n",
+ NFSSVCSTAT);
+ break;
+ }
+ return 1;
+ }
+ goto next;
+ }
+ /*
+ * Check the to see if it's writeable. If not
+ * this means the RPC module does not support zeroing.
+ */
+ if (!(sb.st_mode & S_IWUSR)) {
+ fprintf(stderr, "nfsstat: zeroing of nfs server statistics is not supported\n");
+ if (!opt_clt)
+ return 1;
+ goto next;
+ }
+ if ((fp = fopen(NFSSVCSTAT, "w")) != NULL) {
+ fprintf(fp,"%x", what);
+ fclose(fp);
+ } else {
+ fprintf(stderr, "nfsstat: Unable open server statistics file: %s: %m\n", NFSSVCSTAT);
+ if (!opt_clt)
+ return 1;
+ }
+ }
+next:
+
+ if (opt_clt) {
+ /*
+ * See if NFSCLTSTAT exists. If so, get the mode bits and open it
+ */
+ if (stat(NFSCLTSTAT, &sb) < 0) {
+ if (!opt_srv) {
+ switch(errno) {
+ case ENOENT:
+ fprintf(stderr, "nfsstat: No NFS filesystems mounted\n");
+ break;
+ default:
+ fprintf(stderr, "nfsstat: Unable open statistics file: %s: %m\n",
+ NFSSVCSTAT);
+ break;
+ }
+ }
+ return 1;
+ }
+ /*
+ * Check the to see if it's writeable. If not
+ * this means the RPC module does not support zeroing.
+ */
+ if (!(sb.st_mode & S_IWUSR)) {
+ fprintf(stderr, "nfsstat: zeroing of nfs client statistics is not supported\n");
+ return 1;
+ }
+ if ((fp = fopen(NFSCLTSTAT, "w")) != NULL) {
+ fprintf(fp,"%x", what);
+ fclose(fp);
+ } else {
+ fprintf(stderr, "nfsstat: Unable open client statistics file: %s: %m\n", NFSSVCSTAT);
+ return 1;
+ }
+ }
+
+ return 0;
+}
static int