glusterd/snapshot : Dont acquire a lock if config is of
type DISPLAY. Problem : Currently we are acquiring a lock if we give "gluster snapshot config <volname>". As this is just a Read-Only command, we need not acquire a lock. Solution : This patch checks if the command given is of type DISPLAY. If so, then glusterd_v3_mgmt framework is not called, as reading information from local node is enough. This Patch also fixes "Assertion failed: volname" while doing the system config change when snap create was in progress. Change-Id: Ie8991f2cd746987b11152006e113e8706516138b BUG: 1087677 Signed-off-by: Sachin Pandit <spandit@redhat.com> Reviewed-on: http://review.gluster.org/7458 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijaikumar Mallikarjuna <vmallika@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
This commit is contained in:
Sachin Pandit
Vijay Bellur
parent
fe7d28e598
commit
29af4da4b5
@ -113,6 +113,177 @@ out:
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return ret;
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return ret;
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}
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}
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int
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snap_max_limits_display_commit (dict_t *rsp_dict, char *volname,
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char *op_errstr)
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{
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char err_str[PATH_MAX] = "";
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char buf[PATH_MAX] = "";
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glusterd_conf_t *conf = NULL;
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glusterd_volinfo_t *volinfo = NULL;
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int ret = -1;
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uint64_t active_hard_limit = 0;
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uint64_t snap_max_limit = 0;
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uint64_t soft_limit_value = -1;
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uint64_t count = 0;
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xlator_t *this = NULL;
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this = THIS;
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GF_ASSERT (this);
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GF_ASSERT (rsp_dict);
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GF_ASSERT (op_errstr);
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conf = this->private;
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GF_ASSERT (conf);
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if (!volname) {
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/* For system limit */
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list_for_each_entry (volinfo, &conf->volumes, vol_list) {
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if (volinfo->is_snap_volume == _gf_true)
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continue;
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snap_max_limit = volinfo->snap_max_hard_limit;
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if (snap_max_limit > conf->snap_max_hard_limit)
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active_hard_limit = conf->snap_max_hard_limit;
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else
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active_hard_limit = snap_max_limit;
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soft_limit_value = (active_hard_limit *
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conf->snap_max_soft_limit) / 100;
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snprintf (buf, sizeof(buf), "volume%ld-volname", count);
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ret = dict_set_str (rsp_dict, buf, volinfo->volname);
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if (ret) {
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snprintf (err_str, PATH_MAX,
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"Failed to set %s", buf);
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goto out;
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}
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snprintf (buf, sizeof(buf),
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"volume%ld-snap-max-hard-limit", count);
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ret = dict_set_uint64 (rsp_dict, buf, snap_max_limit);
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if (ret) {
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snprintf (err_str, PATH_MAX,
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"Failed to set %s", buf);
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goto out;
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}
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snprintf (buf, sizeof(buf),
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"volume%ld-active-hard-limit", count);
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ret = dict_set_uint64 (rsp_dict, buf,
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active_hard_limit);
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if (ret) {
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snprintf (err_str, PATH_MAX,
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"Failed to set %s", buf);
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goto out;
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}
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snprintf (buf, sizeof(buf),
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"volume%ld-snap-max-soft-limit", count);
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ret = dict_set_uint64 (rsp_dict, buf, soft_limit_value);
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if (ret) {
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snprintf (err_str, PATH_MAX,
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"Failed to set %s", buf);
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goto out;
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}
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count++;
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}
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ret = dict_set_uint64 (rsp_dict, "voldisplaycount", count);
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if (ret) {
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snprintf (err_str, PATH_MAX,
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"Failed to set voldisplaycount");
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goto out;
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}
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} else {
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/* For one volume */
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ret = glusterd_volinfo_find (volname, &volinfo);
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if (ret) {
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snprintf (err_str, PATH_MAX, "Failed to get the"
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" volinfo for volume %s", volname);
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goto out;
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}
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snap_max_limit = volinfo->snap_max_hard_limit;
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if (snap_max_limit > conf->snap_max_hard_limit)
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active_hard_limit = conf->snap_max_hard_limit;
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else
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active_hard_limit = snap_max_limit;
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soft_limit_value = (active_hard_limit *
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conf->snap_max_soft_limit) / 100;
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snprintf (buf, sizeof(buf), "volume%ld-volname", count);
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ret = dict_set_str (rsp_dict, buf, volinfo->volname);
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if (ret) {
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snprintf (err_str, PATH_MAX,
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"Failed to set %s", buf);
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goto out;
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}
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snprintf (buf, sizeof(buf),
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"volume%ld-snap-max-hard-limit", count);
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ret = dict_set_uint64 (rsp_dict, buf, snap_max_limit);
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if (ret) {
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snprintf (err_str, PATH_MAX,
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"Failed to set %s", buf);
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goto out;
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}
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snprintf (buf, sizeof(buf),
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"volume%ld-active-hard-limit", count);
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ret = dict_set_uint64 (rsp_dict, buf, active_hard_limit);
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if (ret) {
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snprintf (err_str, PATH_MAX,
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"Failed to set %s", buf);
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goto out;
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}
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snprintf (buf, sizeof(buf),
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"volume%ld-snap-max-soft-limit", count);
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ret = dict_set_uint64 (rsp_dict, buf, soft_limit_value);
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if (ret) {
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snprintf (err_str, PATH_MAX,
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"Failed to set %s", buf);
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goto out;
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}
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count++;
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ret = dict_set_uint64 (rsp_dict, "voldisplaycount", count);
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if (ret) {
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snprintf (err_str, PATH_MAX,
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"Failed to set voldisplaycount");
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goto out;
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}
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}
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ret = dict_set_uint64 (rsp_dict, "snap-max-hard-limit",
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conf->snap_max_hard_limit);
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if (ret) {
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snprintf (err_str, PATH_MAX,
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"Failed to set sys-snap-max-hard-limit ");
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goto out;
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}
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ret = dict_set_uint64 (rsp_dict, "snap-max-soft-limit",
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conf->snap_max_soft_limit);
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if (ret) {
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snprintf (err_str, PATH_MAX,
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"Failed to set sys-snap-max-hard-limit ");
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goto out;
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}
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ret = 0;
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out:
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if (ret) {
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op_errstr = gf_strdup (err_str);
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gf_log (this->name, GF_LOG_ERROR, "%s", err_str);
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}
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return ret;
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}
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/* This function will restore a snapshot volumes
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/* This function will restore a snapshot volumes
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*
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*
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* @param dict dictionary containing snapshot restore request
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* @param dict dictionary containing snapshot restore request
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@ -478,6 +649,88 @@ out:
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return ret;
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return ret;
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}
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}
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/* This function will be called from RPC handler routine.
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* This function is responsible for getting the requested
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* snapshot config into the dictionary.
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*
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* @param req RPC request object. Required for sending a response back.
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* @param op glusterd operation. Required for sending a response back.
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* @param dict pointer to dictionary which will contain both
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* request and response key-pair values.
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* @return -1 on error and 0 on success
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*/
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int
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glusterd_handle_snapshot_config (rpcsvc_request_t *req, glusterd_op_t op,
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dict_t *dict, char *err_str, size_t len)
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{
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int32_t ret = -1;
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char *volname = NULL;
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xlator_t *this = NULL;
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int config_command = 0;
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this = THIS;
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GF_ASSERT (this);
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GF_VALIDATE_OR_GOTO (this->name, req, out);
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GF_VALIDATE_OR_GOTO (this->name, dict, out);
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/* TODO : Type of lock to be taken when we are setting
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* limits system wide
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*/
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ret = dict_get_int32 (dict, "config-command", &config_command);
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if (ret) {
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snprintf (err_str, sizeof (err_str),
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"Failed to get config-command type");
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goto out;
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}
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ret = dict_get_str (dict, "volname", &volname);
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switch (config_command) {
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case GF_SNAP_CONFIG_TYPE_SET:
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if (!volname) {
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ret = dict_set_int32 (dict, "hold_vol_locks",
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_gf_false);
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if (ret) {
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gf_log (this->name, GF_LOG_ERROR,
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"Unable to set hold_vol_locks value "
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"as _gf_false");
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goto out;
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}
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}
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ret = glusterd_mgmt_v3_initiate_all_phases (req, op, dict);
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break;
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case GF_SNAP_CONFIG_DISPLAY:
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/* Reading data from local node only */
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ret = snap_max_limits_display_commit (dict, volname,
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err_str);
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if (ret) {
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gf_log (this->name, GF_LOG_ERROR,
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"snap-max-limit "
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"display commit failed.");
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goto out;
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}
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/* If everything is successful then send the response
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* back to cli
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*/
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ret = glusterd_op_send_cli_response (op, 0, 0, req, dict,
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err_str);
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if (ret) {
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gf_log (this->name, GF_LOG_ERROR, "Failed to send cli "
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"response");
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goto out;
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}
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break;
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default:
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gf_log (this->name, GF_LOG_ERROR, "Unknown config type");
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ret = -1;
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break;
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}
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out:
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return ret;
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}
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int
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int
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glusterd_snap_create_pre_val_use_rsp_dict (dict_t *dst, dict_t *src)
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glusterd_snap_create_pre_val_use_rsp_dict (dict_t *dst, dict_t *src)
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{
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{
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@ -3842,7 +4095,6 @@ snap_max_hard_limit_set_commit (dict_t *dict, uint64_t value,
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GF_ASSERT (this);
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GF_ASSERT (this);
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GF_ASSERT (dict);
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GF_ASSERT (dict);
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GF_ASSERT (volname);
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GF_ASSERT (op_errstr);
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GF_ASSERT (op_errstr);
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conf = this->private;
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conf = this->private;
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@ -3889,178 +4141,6 @@ out:
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return ret;
|
return ret;
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}
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}
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int
|
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snap_max_limits_display_commit (dict_t *rsp_dict, char *volname,
|
|
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char **op_errstr)
|
|
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{
|
|
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char err_str[PATH_MAX] = "";
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|
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char buf[PATH_MAX] = "";
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glusterd_conf_t *conf = NULL;
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glusterd_volinfo_t *volinfo = NULL;
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int ret = -1;
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|
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uint64_t active_hard_limit = 0;
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uint64_t snap_max_limit = 0;
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uint64_t soft_limit_value = -1;
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uint64_t count = 0;
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xlator_t *this = NULL;
|
|
||||||
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||||||
this = THIS;
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|
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GF_ASSERT (this);
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|
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GF_ASSERT (rsp_dict);
|
|
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GF_ASSERT (volname);
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GF_ASSERT (op_errstr);
|
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|
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conf = this->private;
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|
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|
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GF_ASSERT (conf);
|
|
||||||
|
|
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if (!volname) {
|
|
||||||
/* For system limit */
|
|
||||||
list_for_each_entry (volinfo, &conf->volumes, vol_list) {
|
|
||||||
if (volinfo->is_snap_volume == _gf_true)
|
|
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continue;
|
|
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snap_max_limit = volinfo->snap_max_hard_limit;
|
|
||||||
if (snap_max_limit > conf->snap_max_hard_limit)
|
|
||||||
active_hard_limit = conf->snap_max_hard_limit;
|
|
||||||
else
|
|
||||||
active_hard_limit = snap_max_limit;
|
|
||||||
soft_limit_value = (active_hard_limit *
|
|
||||||
conf->snap_max_soft_limit) / 100;
|
|
||||||
|
|
||||||
snprintf (buf, sizeof(buf), "volume%"PRIu64"-volname", count);
|
|
||||||
ret = dict_set_str (rsp_dict, buf, volinfo->volname);
|
|
||||||
if (ret) {
|
|
||||||
snprintf (err_str, PATH_MAX,
|
|
||||||
"Failed to set %s", buf);
|
|
||||||
goto out;
|
|
||||||
}
|
|
||||||
|
|
||||||
snprintf (buf, sizeof(buf),
|
|
||||||
"volume%"PRIu64"-snap-max-hard-limit", count);
|
|
||||||
ret = dict_set_uint64 (rsp_dict, buf, snap_max_limit);
|
|
||||||
if (ret) {
|
|
||||||
snprintf (err_str, PATH_MAX,
|
|
||||||
"Failed to set %s", buf);
|
|
||||||
goto out;
|
|
||||||
}
|
|
||||||
|
|
||||||
snprintf (buf, sizeof(buf),
|
|
||||||
"volume%"PRIu64"-active-hard-limit", count);
|
|
||||||
ret = dict_set_uint64 (rsp_dict, buf,
|
|
||||||
active_hard_limit);
|
|
||||||
if (ret) {
|
|
||||||
snprintf (err_str, PATH_MAX,
|
|
||||||
"Failed to set %s", buf);
|
|
||||||
goto out;
|
|
||||||
}
|
|
||||||
|
|
||||||
snprintf (buf, sizeof(buf),
|
|
||||||
"volume%"PRIu64"-snap-max-soft-limit", count);
|
|
||||||
ret = dict_set_uint64 (rsp_dict, buf, soft_limit_value);
|
|
||||||
if (ret) {
|
|
||||||
snprintf (err_str, PATH_MAX,
|
|
||||||
"Failed to set %s", buf);
|
|
||||||
goto out;
|
|
||||||
}
|
|
||||||
count++;
|
|
||||||
}
|
|
||||||
|
|
||||||
ret = dict_set_uint64 (rsp_dict, "voldisplaycount", count);
|
|
||||||
if (ret) {
|
|
||||||
snprintf (err_str, PATH_MAX,
|
|
||||||
"Failed to set voldisplaycount");
|
|
||||||
goto out;
|
|
||||||
}
|
|
||||||
} else {
|
|
||||||
/* For one volume */
|
|
||||||
ret = glusterd_volinfo_find (volname, &volinfo);
|
|
||||||
if (ret) {
|
|
||||||
snprintf (err_str, PATH_MAX, "Failed to get the"
|
|
||||||
" volinfo for volume %s", volname);
|
|
||||||
goto out;
|
|
||||||
}
|
|
||||||
|
|
||||||
snap_max_limit = volinfo->snap_max_hard_limit;
|
|
||||||
if (snap_max_limit > conf->snap_max_hard_limit)
|
|
||||||
active_hard_limit = conf->snap_max_hard_limit;
|
|
||||||
else
|
|
||||||
active_hard_limit = snap_max_limit;
|
|
||||||
|
|
||||||
soft_limit_value = (active_hard_limit *
|
|
||||||
conf->snap_max_soft_limit) / 100;
|
|
||||||
|
|
||||||
snprintf (buf, sizeof(buf), "volume%"PRIu64"-volname", count);
|
|
||||||
ret = dict_set_str (rsp_dict, buf, volinfo->volname);
|
|
||||||
if (ret) {
|
|
||||||
snprintf (err_str, PATH_MAX,
|
|
||||||
"Failed to set %s", buf);
|
|
||||||
goto out;
|
|
||||||
}
|
|
||||||
|
|
||||||
snprintf (buf, sizeof(buf),
|
|
||||||
"volume%"PRIu64"-snap-max-hard-limit", count);
|
|
||||||
ret = dict_set_uint64 (rsp_dict, buf, snap_max_limit);
|
|
||||||
if (ret) {
|
|
||||||
snprintf (err_str, PATH_MAX,
|
|
||||||
"Failed to set %s", buf);
|
|
||||||
goto out;
|
|
||||||
}
|
|
||||||
|
|
||||||
snprintf (buf, sizeof(buf),
|
|
||||||
"volume%"PRIu64"-active-hard-limit", count);
|
|
||||||
ret = dict_set_uint64 (rsp_dict, buf, active_hard_limit);
|
|
||||||
if (ret) {
|
|
||||||
snprintf (err_str, PATH_MAX,
|
|
||||||
"Failed to set %s", buf);
|
|
||||||
goto out;
|
|
||||||
}
|
|
||||||
|
|
||||||
snprintf (buf, sizeof(buf),
|
|
||||||
"volume%"PRIu64"-snap-max-soft-limit", count);
|
|
||||||
ret = dict_set_uint64 (rsp_dict, buf, soft_limit_value);
|
|
||||||
if (ret) {
|
|
||||||
snprintf (err_str, PATH_MAX,
|
|
||||||
"Failed to set %s", buf);
|
|
||||||
goto out;
|
|
||||||
}
|
|
||||||
|
|
||||||
count++;
|
|
||||||
|
|
||||||
ret = dict_set_uint64 (rsp_dict, "voldisplaycount", count);
|
|
||||||
if (ret) {
|
|
||||||
snprintf (err_str, PATH_MAX,
|
|
||||||
"Failed to set voldisplaycount");
|
|
||||||
goto out;
|
|
||||||
}
|
|
||||||
|
|
||||||
}
|
|
||||||
|
|
||||||
ret = dict_set_uint64 (rsp_dict, "snap-max-hard-limit",
|
|
||||||
conf->snap_max_hard_limit);
|
|
||||||
if (ret) {
|
|
||||||
snprintf (err_str, PATH_MAX,
|
|
||||||
"Failed to set sys-snap-max-hard-limit ");
|
|
||||||
goto out;
|
|
||||||
}
|
|
||||||
|
|
||||||
ret = dict_set_uint64 (rsp_dict, "snap-max-soft-limit",
|
|
||||||
conf->snap_max_soft_limit);
|
|
||||||
if (ret) {
|
|
||||||
snprintf (err_str, PATH_MAX,
|
|
||||||
"Failed to set sys-snap-max-hard-limit ");
|
|
||||||
goto out;
|
|
||||||
}
|
|
||||||
|
|
||||||
ret = 0;
|
|
||||||
out:
|
|
||||||
if (ret) {
|
|
||||||
*op_errstr = gf_strdup (err_str);
|
|
||||||
gf_log (this->name, GF_LOG_ERROR, "%s", err_str);
|
|
||||||
}
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
|
|
||||||
int
|
int
|
||||||
glusterd_snapshot_config_commit (dict_t *dict, char **op_errstr,
|
glusterd_snapshot_config_commit (dict_t *dict, char **op_errstr,
|
||||||
dict_t *rsp_dict)
|
dict_t *rsp_dict)
|
||||||
@ -4131,22 +4211,6 @@ glusterd_snapshot_config_commit (dict_t *dict, char **op_errstr,
|
|||||||
}
|
}
|
||||||
break;
|
break;
|
||||||
|
|
||||||
case GF_SNAP_CONFIG_DISPLAY:
|
|
||||||
/* Reading data from local node only */
|
|
||||||
if (!is_origin_glusterd (dict)) {
|
|
||||||
ret = 0;
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
|
|
||||||
ret = snap_max_limits_display_commit (rsp_dict, volname,
|
|
||||||
op_errstr);
|
|
||||||
if (ret) {
|
|
||||||
gf_log (this->name, GF_LOG_ERROR,
|
|
||||||
"snap-max-limit "
|
|
||||||
"display commit failed.");
|
|
||||||
goto out;
|
|
||||||
}
|
|
||||||
break;
|
|
||||||
default:
|
default:
|
||||||
break;
|
break;
|
||||||
}
|
}
|
||||||
@ -5158,7 +5222,6 @@ glusterd_handle_snapshot_fn (rpcsvc_request_t *req)
|
|||||||
char *host_uuid = NULL;
|
char *host_uuid = NULL;
|
||||||
char err_str[2048] = {0,};
|
char err_str[2048] = {0,};
|
||||||
xlator_t *this = NULL;
|
xlator_t *this = NULL;
|
||||||
char *volname = NULL;
|
|
||||||
|
|
||||||
GF_ASSERT (req);
|
GF_ASSERT (req);
|
||||||
|
|
||||||
@ -5254,22 +5317,12 @@ glusterd_handle_snapshot_fn (rpcsvc_request_t *req)
|
|||||||
}
|
}
|
||||||
break;
|
break;
|
||||||
case GF_SNAP_OPTION_TYPE_CONFIG:
|
case GF_SNAP_OPTION_TYPE_CONFIG:
|
||||||
/* TODO : Type of lock to be taken when we are setting
|
ret = glusterd_handle_snapshot_config (req, cli_op, dict,
|
||||||
* limits system wide
|
err_str, sizeof (err_str));
|
||||||
*/
|
if (ret) {
|
||||||
ret = dict_get_str (dict, "volname", &volname);
|
gf_log (this->name, GF_LOG_WARNING, "snapshot config "
|
||||||
if (!volname) {
|
"failed");
|
||||||
ret = dict_set_int32 (dict, "hold_vol_locks",
|
|
||||||
_gf_false);
|
|
||||||
if (ret) {
|
|
||||||
gf_log ("cli", GF_LOG_ERROR,
|
|
||||||
"Unable to set hold_vol_locks value "
|
|
||||||
"as _gf_false");
|
|
||||||
goto out;
|
|
||||||
}
|
|
||||||
|
|
||||||
}
|
}
|
||||||
ret = glusterd_mgmt_v3_initiate_all_phases (req, cli_op, dict);
|
|
||||||
break;
|
break;
|
||||||
case GF_SNAP_OPTION_TYPE_DELETE:
|
case GF_SNAP_OPTION_TYPE_DELETE:
|
||||||
ret = glusterd_handle_snapshot_remove (req, cli_op, dict,
|
ret = glusterd_handle_snapshot_remove (req, cli_op, dict,
|
||||||
|
|||||||
Loading…
x
Reference in New Issue
Block a user