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authorPoornima G <pgurusid@redhat.com>2016-01-22 11:44:21 -0500
committerKaleb KEITHLEY <kkeithle@redhat.com>2017-01-23 19:13:15 -0500
commitf2e7b6800b812e8bbc9bdbcea4c400a1784e31dc (patch)
tree2809f95a28204a4769e4dac07db8fe7b79a980f9 /cli
parent4008a48080b9910b9948c35892e762e91198d134 (diff)
glusterd: add a cli command to trigger a statedump on a client
With this, we will be able to trigger statedumps on remote Gluster clients, mainly targetted for applications using libgfapi. Design: SIGUSR signal is the most comman way of taking a statedump in Gluster. But it cannot be used for libgfapi based processes, as the process loading the library might have already consumed SIGUSR signal. Hence going by the command way. One has to issue a Gluster command to initiate a statedump on the libgfapi based client. The command takes hostname and PID as an argument. All the glusterds in the cluster, check if they are connected to the specified hostname, and send an RPC request to all the connected clients from that hostname (via the mgmt connection). URL: http://review.gluster.org/16357 Change-Id: Icbe4d2f026b32a2c7d5535e1bfb2cdaaff042e91 BUG: 1169302 Signed-off-by: Poornima G <pgurusid@redhat.com> [ndevos: minor fixes and split patch in smaller pieces] Reviewed-on: https://review.gluster.org/9228 Reviewed-by: Niels de Vos <ndevos@redhat.com> Tested-by: Niels de Vos <ndevos@redhat.com> Smoke: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Samikshan Bairagya <samikshan@gmail.com>
Diffstat (limited to 'cli')
-rw-r--r--cli/src/cli-cmd-parser.c46
-rw-r--r--cli/src/cli-cmd-volume.c4
2 files changed, 38 insertions, 12 deletions
diff --git a/cli/src/cli-cmd-parser.c b/cli/src/cli-cmd-parser.c
index 3cc6ca9..d93af0e 100644
--- a/cli/src/cli-cmd-parser.c
+++ b/cli/src/cli-cmd-parser.c
@@ -3541,19 +3541,44 @@ cli_cmd_volume_statedump_options_parse (const char **words, int wordcount,
dict_t *dict = NULL;
int option_cnt = 0;
char *option = NULL;
- char option_str[100] = {0,};
-
- for (i = 3; i < wordcount; i++, option_cnt++) {
- if (!cli_cmd_validate_dumpoption (words[i], &option)) {
+ char option_str[_POSIX_HOST_NAME_MAX + 100] = {0,};
+ char *tmp = NULL;
+ char *ip_addr = NULL;
+ char *pid = NULL;
+
+ if ((wordcount >= 5) && ((strcmp (words[3], "client")) == 0)) {
+ tmp = gf_strdup(words[4]);
+ if (!tmp) {
+ ret = -1;
+ goto out;
+ }
+ ip_addr = strtok(tmp, ":");
+ pid = strtok(NULL, ":");
+ if (valid_internet_address (ip_addr, _gf_true)
+ && pid && gf_valid_pid (pid, strlen(pid))) {
+ strncat (option_str, words[3], strlen (words[3]));
+ strncat (option_str, " ", 1);
+ strncat (option_str, ip_addr, strlen (ip_addr));
+ strncat (option_str, " ", 1);
+ strncat (option_str, pid, strlen (pid));
+ option_cnt = 3;
+ } else {
+ ret = -1;
+ goto out;
+ }
+ } else {
+ for (i = 3; i < wordcount; i++, option_cnt++) {
+ if (!cli_cmd_validate_dumpoption (words[i], &option)) {
+ ret = -1;
+ goto out;
+ }
+ strncat (option_str, option, strlen (option));
+ strncat (option_str, " ", 1);
+ }
+ if ((strstr (option_str, "nfs")) && strstr (option_str, "quotad")) {
ret = -1;
goto out;
}
- strncat (option_str, option, strlen (option));
- strncat (option_str, " ", 1);
- }
- if((strstr (option_str, "nfs")) && strstr (option_str, "quotad")) {
- ret = -1;
- goto out;
}
dict = dict_new ();
@@ -3570,6 +3595,7 @@ cli_cmd_volume_statedump_options_parse (const char **words, int wordcount,
*options = dict;
out:
+ GF_FREE (tmp);
if (ret && dict)
dict_unref (dict);
if (ret)
diff --git a/cli/src/cli-cmd-volume.c b/cli/src/cli-cmd-volume.c
index dbf1e3e..5f07a05 100644
--- a/cli/src/cli-cmd-volume.c
+++ b/cli/src/cli-cmd-volume.c
@@ -3285,8 +3285,8 @@ struct cli_cmd volume_cmds[] = {
cli_cmd_volume_heal_cbk,
"self-heal commands on volume specified by <VOLNAME>"},
- {"volume statedump <VOLNAME> [nfs|quotad] [all|mem|iobuf|callpool|priv|fd|"
- "inode|history]...",
+ {"volume statedump <VOLNAME> [[nfs|quotad] [all|mem|iobuf|callpool|"
+ "priv|fd|inode|history]... | [client <hostname:process-id>]]",
cli_cmd_volume_statedump_cbk,
"perform statedump on bricks"},