From: daryder Date: Fri, 30 May 2014 19:35:05 +0000 (-0400) Subject: Update ceph.c X-Git-Tag: collectd-5.5.0~80^2~21 X-Git-Url: https://git.verplant.org/?a=commitdiff_plain;h=5f3082295d2fb64aa6dad9bdb995cf2bc5b780d8;p=collectd.git Update ceph.c Changed latency from long run average to current_val-last_val/cur_time-last_time. Also changed counter types to derive types with min = 0, to prevent large data on ceph service restart --- diff --git a/src/ceph.c b/src/ceph.c index 76c220e5..62161e79 100644 --- a/src/ceph.c +++ b/src/ceph.c @@ -88,7 +88,7 @@ struct ceph_daemon enum perfcounter_type_d { - PERFCOUNTER_LONGRUNAVG = 0x4, PERFCOUNTER_COUNTER = 0x8, + PERFCOUNTER_LATENCY = 0x4, PERFCOUNTER_DERIVE = 0x8, }; /** Array of daemons to monitor */ @@ -111,6 +111,9 @@ static void ceph_daemons_print(void) } } +struct last_data **last_poll_data = NULL; +int last_idx = 0; + /*static void ceph_daemon_free(struct ceph_daemon *d) { plugin_unregister_data_set(d->dset.type); @@ -364,8 +367,8 @@ static int ceph_daemon_add_ds_entry(struct ceph_daemon *d, const char *name, ds = &ds_array[dset->ds_num++]; snprintf(ds->name, MAX_RRD_DS_NAME_LEN, "%s", ds_name); ds->type = - (pc_type & PERFCOUNTER_COUNTER) ? DS_TYPE_COUNTER : DS_TYPE_GAUGE; - ds->min = NAN; + (pc_type & PERFCOUNTER_DERIVE) ? DS_TYPE_DERIVE : DS_TYPE_GAUGE; + ds->min = 0; ds->max = NAN; return 0; } @@ -560,6 +563,95 @@ struct values_tmp struct values_holder vh[0]; }; +struct last_data +{ + char dset_name[DATA_MAX_NAME_LEN]; + char ds_name[MAX_RRD_DS_NAME_LEN]; + double last_sum; + uint64_t last_count; +}; + +int add_last(const char *dset_n, const char *ds_n, double cur_sum, uint64_t cur_count) +{ + last_poll_data[last_idx] = malloc(1 * sizeof(struct last_data)); + if(!last_poll_data[last_idx]) + { + return ENOMEM; + } + sstrncpy(last_poll_data[last_idx]->dset_name,dset_n,sizeof(last_poll_data[last_idx]->dset_name)); + sstrncpy(last_poll_data[last_idx]->ds_name,ds_n,sizeof(last_poll_data[last_idx]->ds_name)); + last_poll_data[last_idx]->last_sum = cur_sum; + last_poll_data[last_idx]->last_count = cur_count; + last_idx++; + return 1; +} + +int update_last(const char *dset_n, const char *ds_n, double cur_sum, uint64_t cur_count) +{ + int i; + for(i = 0; i < last_idx; i++) + { + if(strcmp(last_poll_data[i]->dset_name,dset_n) == 0) + { + if(strcmp(last_poll_data[i]->ds_name,ds_n) == 0) + { + last_poll_data[i]->last_sum = cur_sum; + last_poll_data[i]->last_count = cur_count; + return 1; + } + } + } + + if(NULL == last_poll_data) + { + last_poll_data = malloc(1 * sizeof(struct last_data *)); + if(!last_poll_data) + { + return ENOMEM; + } + } + else + { + struct last_data **tmp_last = realloc(last_poll_data, ((last_idx+1) * sizeof(struct last_data *))); + if(!tmp_last) + { + return ENOMEM; + } + last_poll_data = tmp_last; + } + add_last(dset_n,ds_n,cur_sum,cur_count); + return -1; +} + +double get_last_avg(const char *dset_n, const char *ds_n, double cur_sum, uint64_t cur_count) +{ + int i; + double result = -1.1; + double sum_delt = 0.0; + uint64_t count_delt = 0; + for(i = 0; i < last_idx; i++) + { + if(strcmp(last_poll_data[i]->dset_name,dset_n) == 0) + { + if(strcmp(last_poll_data[i]->ds_name,ds_n) == 0) + { + if(cur_count < last_poll_data[i]->last_count) + { + break; + } + sum_delt = (cur_sum - last_poll_data[i]->last_sum); + count_delt = (cur_count - last_poll_data[i]->last_count); + result = (sum_delt / count_delt); + break; + } + } + } + + result = (result == -1.1) ? NAN : result; + update_last(dset_n,ds_n,cur_sum,cur_count); + return result; +} + static int node_handler_fetch_data(void *arg, json_object *jo, const char *key) { int dset_idx, ds_idx; @@ -580,7 +672,7 @@ static int node_handler_fetch_data(void *arg, json_object *jo, const char *key) return 1;DEBUG("DSet:%s, DS:%s, DSet idx:%d, DS idx:%d", dset_name,ds_name,dset_idx,ds_idx); uv = &(vtmp->vh[dset_idx].values[ds_idx]); - if (vtmp->d->pc_types[dset_idx][ds_idx] & PERFCOUNTER_LONGRUNAVG) + if (vtmp->d->pc_types[dset_idx][ds_idx] & PERFCOUNTER_LATENCY) { json_object *avgcount, *sum; uint64_t avgcounti; @@ -595,17 +687,18 @@ static int node_handler_fetch_data(void *arg, json_object *jo, const char *key) DEBUG("avgcounti:%ld",avgcounti); if (avgcounti == 0) avgcounti = 1; - sumd = json_object_get_int(sum); + sumd = json_object_get_double(sum); DEBUG("sumd:%lf",sumd); - uv->gauge = sumd / avgcounti; - DEBUG("uv->gauge = sumd / avgcounti = :%lf",uv->gauge); + double last_avg = get_last_avg(dset_name, ds_name, sumd, avgcounti); + uv->gauge = last_avg; + DEBUG("uv->gauge = (sumd_now - sumd_last) / (avgcounti_now - avgcounti_last) = :%lf",uv->gauge); } - else if (vtmp->d->pc_types[dset_idx][ds_idx] & PERFCOUNTER_COUNTER) + else if (vtmp->d->pc_types[dset_idx][ds_idx] & PERFCOUNTER_DERIVE) { /* We use json_object_get_double here because anything > 32 * bits may get truncated by json_object_get_int */ - uv->counter = json_object_get_double(jo); - DEBUG("uv->counter %ld",(long)uv->counter); + uv->derive = (uint64_t) json_object_get_double(jo); + DEBUG("uv->derive %" PRIu64 "",(uint64_t)uv->derive); } else { @@ -1166,6 +1259,13 @@ static int ceph_shutdown(void) sfree(g_daemons); g_daemons = NULL; g_num_daemons = 0; + for(i = 0; i < last_idx; i++) + { + sfree(last_poll_data[i]); + } + sfree(last_poll_data); + last_poll_data = NULL; + last_idx = 0; DEBUG("finished ceph_shutdown"); return 0; }