*****************************************************************************
* $Id$
* $Log$
+ * Revision 1.3 2001/03/04 13:01:55 oetiker
+ * Aberrant Behavior Detection support. A brief overview added to rrdtool.pod.
+ * Major updates to rrd_update.c, rrd_create.c. Minor update to other core files.
+ * This is backwards compatible! But new files using the Aberrant stuff are not readable
+ * by old rrdtool versions. See http://cricket.sourceforge.net/aberrant/rrd_hw.htm
+ * -- Jake Brutlag <jakeb@corp.webtv.net>
+ *
* Revision 1.2 2001/03/04 11:14:25 oetiker
* added at-style-time@value:value syntax to rrd_update
* -- Dave Bodenstab <imdave@mcs.net>
#include <io.h>
#endif
-
/* Prototypes */
int LockRRD(FILE *rrd_file);
-
+void write_RRA_row (rrd_t *rrd, unsigned long rra_idx, unsigned long *rra_current,
+ unsigned short CDP_scratch_idx, FILE *rrd_file);
+
/*#define DEBUG */
+#define IFDNAN(X,Y) (isnan(X) ? (Y) : (X));
+
#ifdef STANDALONE
int
{
int arg_i = 2;
- long i,ii,iii;
+ short j;
+ long i,ii,iii=1;
unsigned long rra_begin; /* byte pointer to the rra
* area in the rrd file. this
* was last updated */
unsigned long occu_pdp_age; /* how long ago was the last
* pdp_step time */
- unsigned long pdp_st; /* helper for cdp_prep
- * processing */
rrd_value_t *pdp_new; /* prepare the incoming data
* to be added the the
* existing entry */
rrd_t rrd;
time_t current_time = time(NULL);
char **updvals;
- int wrote_to_file = 0;
- char *template = NULL;
-
+ int schedule_smooth = 0;
+ char *template = NULL;
+ rrd_value_t *seasonal_coef = NULL, *last_seasonal_coef = NULL;
+ /* a vector of future Holt-Winters seasonal coefs */
+ unsigned long elapsed_pdp_st;
+ /* number of elapsed PDP steps since last update */
+ unsigned long *rra_step_cnt = NULL;
+ /* number of rows to be updated in an RRA for a data
+ * value. */
+ unsigned long start_pdp_offset;
+ /* number of PDP steps since the last update that
+ * are assigned to the first CDP to be generated
+ * since the last update. */
+ unsigned short scratch_idx;
+ /* index into the CDP scratch array */
+ enum cf_en current_cf;
+ /* numeric id of the current consolidation function */
while (1) {
static struct option long_options[] =
case '?':
rrd_set_error("unknown option '%s'",argv[optind-1]);
- rrd_free(&rrd);
+ rrd_free(&rrd);
return(-1);
}
}
rrd_free(&rrd);
fclose(rrd_file);
return(-1);
- }
+ }
if((updvals = malloc( sizeof(char*) * (rrd.stat_head->ds_cnt+1)))==NULL){
rrd_set_error("allocating updvals pointer array");
enum {atstyle, normal} timesyntax;
struct time_value ds_tv;
if (stepper == NULL){
- rrd_set_error("faild duplication argv entry");
+ rrd_set_error("failed duplication argv entry");
free(updvals);
free(pdp_temp);
free(tmpl_idx);
}
- /* seek to the beginning of the rrd's */
+ /* seek to the beginning of the rra's */
if (rra_current != rra_begin) {
if(fseek(rrd_file, rra_begin, SEEK_SET) != 0) {
rrd_set_error("seek error in rrd");
#endif
}
-
- /* now we have to integrate this data into the cdp_prep areas */
- /* going through the round robin archives */
- for(i = 0;
- i < rrd.stat_head->rra_cnt;
- i++){
- enum cf_en current_cf = cf_conv(rrd.rra_def[i].cf_nam);
- /* going through all pdp_st moments which have occurred
- * since the last run */
- for(pdp_st = proc_pdp_st+rrd.stat_head->pdp_step;
- pdp_st <= occu_pdp_st;
- pdp_st += rrd.stat_head->pdp_step){
-
+ /* compute the number of elapsed pdp_st moments */
+ elapsed_pdp_st = (occu_pdp_st - proc_pdp_st) / rrd.stat_head -> pdp_step;
#ifdef DEBUG
- fprintf(stderr,"RRA %lu STEP %lu\n",i,pdp_st);
+ fprintf(stderr,"elapsed PDP steps: %lu\n", elapsed_pdp_st);
#endif
+ if (rra_step_cnt == NULL)
+ {
+ rra_step_cnt = (unsigned long *)
+ malloc((rrd.stat_head->rra_cnt)* sizeof(unsigned long));
+ }
- if((pdp_st %
- (rrd.rra_def[i].pdp_cnt*rrd.stat_head->pdp_step)) == 0){
+ for(i = 0, rra_start = rra_begin;
+ i < rrd.stat_head->rra_cnt;
+ rra_start += rrd.rra_def[i].row_cnt * rrd.stat_head -> ds_cnt * sizeof(rrd_value_t),
+ i++)
+ {
+ current_cf = cf_conv(rrd.rra_def[i].cf_nam);
+ start_pdp_offset = rrd.rra_def[i].pdp_cnt -
+ (proc_pdp_st / rrd.stat_head -> pdp_step) % rrd.rra_def[i].pdp_cnt;
+ if (start_pdp_offset <= elapsed_pdp_st) {
+ rra_step_cnt[i] = (elapsed_pdp_st - start_pdp_offset) /
+ rrd.rra_def[i].pdp_cnt + 1;
+ } else {
+ rra_step_cnt[i] = 0;
+ }
- /* later on the cdp_prep values will be transferred to
- * the rra. we want to be in the right place. */
- rrd.rra_ptr[i].cur_row++;
- if (rrd.rra_ptr[i].cur_row >= rrd.rra_def[i].row_cnt)
- /* oops ... we have to wrap the beast ... */
- rrd.rra_ptr[i].cur_row=0;
+ if (current_cf == CF_SEASONAL || current_cf == CF_DEVSEASONAL)
+ {
+ /* If this is a bulk update, we need to skip ahead in the seasonal
+ * arrays so that they will be correct for the next observed value;
+ * note that for the bulk update itself, no update will occur to
+ * DEVSEASONAL or SEASONAL; futhermore, HWPREDICT and DEVPREDICT will
+ * be set to DNAN. */
+ if (rra_step_cnt[i] > 2)
+ {
+ /* skip update by resetting rra_step_cnt[i],
+ * note that this is not data source specific; this is due
+ * to the bulk update, not a DNAN value for the specific data
+ * source. */
+ rra_step_cnt[i] = 0;
+ lookup_seasonal(&rrd,i,rra_start,rrd_file,elapsed_pdp_st,
+ &last_seasonal_coef);
+ lookup_seasonal(&rrd,i,rra_start,rrd_file,elapsed_pdp_st + 1,
+ &seasonal_coef);
+ }
+
+ /* periodically run a smoother for seasonal effects */
+ /* Need to use first cdp parameter buffer to track
+ * burnin (burnin requires a specific smoothing schedule).
+ * The CDP_init_seasonal parameter is really an RRA level,
+ * not a data source within RRA level parameter, but the rra_def
+ * is read only for rrd_update (not flushed to disk). */
+ iii = i*(rrd.stat_head -> ds_cnt);
+ if (rrd.cdp_prep[iii].scratch[CDP_init_seasonal].u_cnt
+ <= BURNIN_CYCLES)
+ {
+ if (rrd.rra_ptr[i].cur_row + elapsed_pdp_st
+ > rrd.rra_def[i].row_cnt - 1) {
+ /* mark off one of the burnin cycles */
+ ++(rrd.cdp_prep[iii].scratch[CDP_init_seasonal].u_cnt);
+ schedule_smooth = 1;
+ }
+ } else {
+ /* someone has no doubt invented a trick to deal with this
+ * wrap around, but at least this code is clear. */
+ if (rrd.rra_def[i].par[RRA_seasonal_smooth_idx].u_cnt >
+ rrd.rra_ptr[i].cur_row)
+ {
+ /* here elapsed_pdp_st = rra_step_cnt[i] because of 1-1
+ * mapping between PDP and CDP */
+ if (rrd.rra_ptr[i].cur_row + elapsed_pdp_st
+ >= rrd.rra_def[i].par[RRA_seasonal_smooth_idx].u_cnt)
+ {
#ifdef DEBUG
- fprintf(stderr," -- RRA Preseek %ld\n",ftell(rrd_file));
+ fprintf(stderr,
+ "schedule_smooth 1: cur_row %lu, elapsed_pdp_st %lu, smooth idx %lu\n",
+ rrd.rra_ptr[i].cur_row, elapsed_pdp_st,
+ rrd.rra_def[i].par[RRA_seasonal_smooth_idx].u_cnt);
#endif
- /* determine if a seek is even needed. */
- rra_pos_tmp = rra_start +
- rrd.stat_head->ds_cnt*rrd.rra_ptr[i].cur_row*sizeof(rrd_value_t);
- if(rra_pos_tmp != rra_current) {
- if(fseek(rrd_file, rra_pos_tmp, SEEK_SET) != 0){
- rrd_set_error("seek error in rrd");
- break;
- }
- rra_current = rra_pos_tmp;
- }
+ schedule_smooth = 1;
+ }
+ } else {
+ /* can't rely on negative numbers because we are working with
+ * unsigned values */
+ /* Don't need modulus here. If we've wrapped more than once, only
+ * one smooth is executed at the end. */
+ if (rrd.rra_ptr[i].cur_row + elapsed_pdp_st >= rrd.rra_def[i].row_cnt
+ && rrd.rra_ptr[i].cur_row + elapsed_pdp_st - rrd.rra_def[i].row_cnt
+ >= rrd.rra_def[i].par[RRA_seasonal_smooth_idx].u_cnt)
+ {
#ifdef DEBUG
- fprintf(stderr," -- RRA Postseek %ld\n",ftell(rrd_file));
+ fprintf(stderr,
+ "schedule_smooth 2: cur_row %lu, elapsed_pdp_st %lu, smooth idx %lu\n",
+ rrd.rra_ptr[i].cur_row, elapsed_pdp_st,
+ rrd.rra_def[i].par[RRA_seasonal_smooth_idx].u_cnt);
#endif
- }
+ schedule_smooth = 1;
+ }
+ }
+ }
+
+ rra_current = ftell(rrd_file);
+ } /* if cf is DEVSEASONAL or SEASONAL */
+ if (rrd_test_error()) break;
+
+ /* update CDP_PREP areas */
+ /* loop over data soures within each RRA */
for(ii = 0;
ii < rrd.stat_head->ds_cnt;
- ii++){
+ ii++)
+ {
+
+ /* iii indexes the CDP prep area for this data source within the RRA */
iii=i*rrd.stat_head->ds_cnt+ii;
-
- /* the contents of cdp_prep[].scratch[CDP_val].u_val depends
- * on the consolidation function ! */
-
- if (isnan(pdp_temp[ii])){ /* pdp is unknown */
- rrd.cdp_prep[iii].scratch[CDP_unkn_pdp_cnt].u_cnt++;
+
+ if (rrd.rra_def[i].pdp_cnt > 1) {
+
+ if (rra_step_cnt[i] > 0) {
+ /* If we are in this block, as least 1 CDP value will be written to
+ * disk, this is the CDP_primary_val entry. If more than 1 value needs
+ * to be written, then the "fill in" value is the CDP_secondary_val
+ * entry. */
+ if (isnan(pdp_temp[ii]))
+ {
+ rrd.cdp_prep[iii].scratch[CDP_unkn_pdp_cnt].u_cnt += start_pdp_offset;
+ rrd.cdp_prep[iii].scratch[CDP_secondary_val].u_val = DNAN;
+ } else {
+ /* CDP_secondary value is the RRA "fill in" value for intermediary
+ * CDP data entries. No matter the CF, the value is the same because
+ * the average, max, min, and last of a list of identical values is
+ * the same, namely, the value itself. */
+ rrd.cdp_prep[iii].scratch[CDP_secondary_val].u_val = pdp_temp[ii];
+ }
+
+ if (rrd.cdp_prep[iii].scratch[CDP_unkn_pdp_cnt].u_cnt
+ > rrd.rra_def[i].pdp_cnt*
+ rrd.rra_def[i].par[RRA_cdp_xff_val].u_val)
+ {
+ rrd.cdp_prep[iii].scratch[CDP_primary_val].u_val = DNAN;
+ /* initialize carry over */
+ if (current_cf == CF_AVERAGE) {
+ if (isnan(pdp_temp[ii])) {
+ rrd.cdp_prep[iii].scratch[CDP_val].u_val = DNAN;
+ } else {
+ rrd.cdp_prep[iii].scratch[CDP_val].u_val = pdp_temp[ii] *
+ ((elapsed_pdp_st - start_pdp_offset) % rrd.rra_def[i].pdp_cnt);
+ }
+ } else {
+ rrd.cdp_prep[iii].scratch[CDP_val].u_val = pdp_temp[ii];
+ }
+ } else {
+ rrd_value_t cum_val, cur_val;
+ switch (current_cf) {
+ case CF_AVERAGE:
+ cum_val = IFDNAN(rrd.cdp_prep[iii].scratch[CDP_val].u_val, 0.0);
+ cur_val = IFDNAN(pdp_temp[ii],0.0);
+ rrd.cdp_prep[iii].scratch[CDP_primary_val].u_val =
+ (cum_val + cur_val) /
+ (rrd.rra_def[i].pdp_cnt
+ -rrd.cdp_prep[iii].scratch[CDP_unkn_pdp_cnt].u_cnt);
+ /* initialize carry over value */
+ if (isnan(pdp_temp[ii])) {
+ rrd.cdp_prep[iii].scratch[CDP_val].u_val = DNAN;
+ } else {
+ rrd.cdp_prep[iii].scratch[CDP_val].u_val = pdp_temp[ii] *
+ ((elapsed_pdp_st - start_pdp_offset) % rrd.rra_def[i].pdp_cnt);
+ }
+ break;
+ case CF_MAXIMUM:
+ cum_val = IFDNAN(rrd.cdp_prep[iii].scratch[CDP_val].u_val, -DINF);
+ cur_val = IFDNAN(pdp_temp[ii],-DINF);
#ifdef DEBUG
- fprintf(stderr," ** UNKNOWN ADD %lu\n",
- rrd.cdp_prep[iii].scratch[CDP_unkn_pdp_cnt].u_cnt);
+ if (isnan(rrd.cdp_prep[iii].scratch[CDP_val].u_val) &&
+ isnan(pdp_temp[ii])) {
+ fprintf(stderr,
+ "RRA %lu, DS %lu, both CDP_val and pdp_temp are DNAN!",
+ i,ii);
+ exit(-1);
+ }
#endif
- } else {
- if (isnan(rrd.cdp_prep[iii].scratch[CDP_val].u_val)){
- /* cdp_prep is unknown when it does not
- * yet contain data. It can not be zero for
- * things like mim and max consolidation
- * functions */
+ if (cur_val > cum_val)
+ rrd.cdp_prep[iii].scratch[CDP_primary_val].u_val = cur_val;
+ else
+ rrd.cdp_prep[iii].scratch[CDP_primary_val].u_val = cum_val;
+ /* initialize carry over value */
+ rrd.cdp_prep[iii].scratch[CDP_val].u_val = pdp_temp[ii];
+ break;
+ case CF_MINIMUM:
+ cum_val = IFDNAN(rrd.cdp_prep[iii].scratch[CDP_val].u_val, DINF);
+ cur_val = IFDNAN(pdp_temp[ii],DINF);
#ifdef DEBUG
- fprintf(stderr," ** INIT CDP %e\n", pdp_temp[ii]);
+ if (isnan(rrd.cdp_prep[iii].scratch[CDP_val].u_val) &&
+ isnan(pdp_temp[ii])) {
+ fprintf(stderr,
+ "RRA %lu, DS %lu, both CDP_val and pdp_temp are DNAN!",
+ i,ii);
+ exit(-1);
+ }
#endif
- rrd.cdp_prep[iii].scratch[CDP_val].u_val = pdp_temp[ii];
- }
- else {
- switch (current_cf){
- case CF_AVERAGE:
- rrd.cdp_prep[iii].scratch[CDP_val].u_val+=pdp_temp[ii];
+ if (cur_val < cum_val)
+ rrd.cdp_prep[iii].scratch[CDP_primary_val].u_val = cur_val;
+ else
+ rrd.cdp_prep[iii].scratch[CDP_primary_val].u_val = cum_val;
+ /* initialize carry over value */
+ rrd.cdp_prep[iii].scratch[CDP_val].u_val = pdp_temp[ii];
+ break;
+ case CF_LAST:
+ default:
+ rrd.cdp_prep[iii].scratch[CDP_primary_val].u_val = pdp_temp[ii];
+ /* initialize carry over value */
+ rrd.cdp_prep[iii].scratch[CDP_val].u_val = pdp_temp[ii];
+ break;
+ }
+ } /* endif meets xff value requirement for a valid value */
+ /* initialize carry over CDP_unkn_pdp_cnt, this must after CDP_primary_val
+ * is set because CDP_unkn_pdp_cnt is required to compute that value. */
+ if (isnan(pdp_temp[ii]))
+ rrd.cdp_prep[iii].scratch[CDP_unkn_pdp_cnt].u_cnt =
+ (elapsed_pdp_st - start_pdp_offset) % rrd.rra_def[i].pdp_cnt;
+ else
+ rrd.cdp_prep[iii].scratch[CDP_unkn_pdp_cnt].u_cnt = 0;
+ } else /* rra_step_cnt[i] == 0 */
+ {
#ifdef DEBUG
- fprintf(stderr," ** AVERAGE %e\n",
- rrd.cdp_prep[iii].scratch[CDP_val].u_val);
+ if (isnan(rrd.cdp_prep[iii].scratch[CDP_val].u_val)) {
+ fprintf(stderr,"schedule CDP_val update, RRA %lu DS %lu, DNAN\n",
+ i,ii);
+ } else {
+ fprintf(stderr,"schedule CDP_val update, RRA %lu DS %lu, %10.2f\n",
+ i,ii,rrd.cdp_prep[iii].scratch[CDP_val].u_val);
+ }
#endif
- break;
- case CF_MINIMUM:
- if (pdp_temp[ii] < rrd.cdp_prep[iii].scratch[CDP_val].u_val)
+ if (isnan(pdp_temp[ii])) {
+ rrd.cdp_prep[iii].scratch[CDP_unkn_pdp_cnt].u_cnt += elapsed_pdp_st;
+ } else if (isnan(rrd.cdp_prep[iii].scratch[CDP_val].u_val))
+ {
+ if (current_cf == CF_AVERAGE) {
+ rrd.cdp_prep[iii].scratch[CDP_val].u_val = pdp_temp[ii] *
+ elapsed_pdp_st;
+ } else {
rrd.cdp_prep[iii].scratch[CDP_val].u_val = pdp_temp[ii];
+ }
#ifdef DEBUG
- fprintf(stderr," ** MINIMUM %e\n",
- rrd.cdp_prep[iii].scratch[CDP_val].u_val);
+ fprintf(stderr,"Initialize CDP_val for RRA %lu DS %lu: %10.2f\n",
+ i,ii,rrd.cdp_prep[iii].scratch[CDP_val].u_val);
#endif
- break;
- case CF_MAXIMUM:
- if (pdp_temp[ii] > rrd.cdp_prep[iii].scratch[CDP_val].u_val)
- rrd.cdp_prep[iii].scratch[CDP_val].u_val = pdp_temp[ii];
+ } else {
+ switch (current_cf) {
+ case CF_AVERAGE:
+ rrd.cdp_prep[iii].scratch[CDP_val].u_val += pdp_temp[ii] *
+ elapsed_pdp_st;
+ break;
+ case CF_MINIMUM:
+ if (pdp_temp[ii] < rrd.cdp_prep[iii].scratch[CDP_val].u_val)
+ rrd.cdp_prep[iii].scratch[CDP_val].u_val = pdp_temp[ii];
+ break;
+ case CF_MAXIMUM:
+ if (pdp_temp[ii] > rrd.cdp_prep[iii].scratch[CDP_val].u_val)
+ rrd.cdp_prep[iii].scratch[CDP_val].u_val = pdp_temp[ii];
+ break;
+ case CF_LAST:
+ default:
+ rrd.cdp_prep[iii].scratch[CDP_val].u_val = pdp_temp[ii];
+ break;
+ }
+ }
+ }
+ } else { /* rrd.rra_def[i].pdp_cnt == 1 */
+ if (elapsed_pdp_st > 2)
+ {
+ switch (current_cf) {
+ case CF_AVERAGE:
+ default:
+ rrd.cdp_prep[iii].scratch[CDP_primary_val].u_val=pdp_temp[ii];
+ rrd.cdp_prep[iii].scratch[CDP_secondary_val].u_val=pdp_temp[ii];
+ break;
+ case CF_SEASONAL:
+ case CF_DEVSEASONAL:
+ /* need to update cached seasonal values, so they are consistent
+ * with the bulk update */
+ /* WARNING: code relies on the fact that CDP_hw_last_seasonal and
+ * CDP_last_deviation are the same. */
+ rrd.cdp_prep[iii].scratch[CDP_hw_last_seasonal].u_val =
+ last_seasonal_coef[ii];
+ rrd.cdp_prep[iii].scratch[CDP_hw_seasonal].u_val =
+ seasonal_coef[ii];
+ break;
+ case CF_HWPREDICT:
+ /* need to update the null_count and last_null_count.
+ * even do this for non-DNAN pdp_temp because the
+ * algorithm is not learning from batch updates. */
+ rrd.cdp_prep[iii].scratch[CDP_null_count].u_cnt +=
+ elapsed_pdp_st;
+ rrd.cdp_prep[iii].scratch[CDP_last_null_count].u_cnt +=
+ elapsed_pdp_st - 1;
+ /* fall through */
+ case CF_DEVPREDICT:
+ rrd.cdp_prep[iii].scratch[CDP_primary_val].u_val = DNAN;
+ rrd.cdp_prep[iii].scratch[CDP_secondary_val].u_val = DNAN;
+ break;
+ case CF_FAILURES:
+ /* do not count missed bulk values as failures */
+ rrd.cdp_prep[iii].scratch[CDP_primary_val].u_val = 0;
+ rrd.cdp_prep[iii].scratch[CDP_secondary_val].u_val = 0;
+ /* need to reset violations buffer.
+ * could do this more carefully, but for now, just
+ * assume a bulk update wipes away all violations. */
+ erase_violations(&rrd, iii, i);
+ break;
+ }
+ }
+ } /* endif rrd.rra_def[i].pdp_cnt == 1 */
+
+ if (rrd_test_error()) break;
+
+ } /* endif data sources loop */
+ } /* end RRA Loop */
+
+ /* this loop is only entered if elapsed_pdp_st < 3 */
+ for (j = elapsed_pdp_st, scratch_idx = CDP_primary_val;
+ j > 0 && j < 3; j--, scratch_idx = CDP_secondary_val)
+ {
+ for(i = 0, rra_start = rra_begin;
+ i < rrd.stat_head->rra_cnt;
+ rra_start += rrd.rra_def[i].row_cnt * rrd.stat_head -> ds_cnt * sizeof(rrd_value_t),
+ i++)
+ {
+ if (rrd.rra_def[i].pdp_cnt > 1) continue;
+
+ current_cf = cf_conv(rrd.rra_def[i].cf_nam);
+ if (current_cf == CF_SEASONAL || current_cf == CF_DEVSEASONAL)
+ {
+ lookup_seasonal(&rrd,i,rra_start,rrd_file,
+ elapsed_pdp_st + (scratch_idx == CDP_primary_val ? 1 : 2),
+ &seasonal_coef);
+ }
+ if (rrd_test_error()) break;
+ /* loop over data soures within each RRA */
+ for(ii = 0;
+ ii < rrd.stat_head->ds_cnt;
+ ii++)
+ {
+ update_aberrant_CF(&rrd,pdp_temp[ii],current_cf,
+ i*(rrd.stat_head->ds_cnt) + ii,i,ii,
+ scratch_idx, seasonal_coef);
+ }
+ } /* end RRA Loop */
+ if (rrd_test_error()) break;
+ } /* end elapsed_pdp_st loop */
+
+ if (rrd_test_error()) break;
+
+ /* Ready to write to disk */
+ /* Move sequentially through the file, writing one RRA at a time.
+ * Note this architecture divorces the computation of CDP with
+ * flushing updated RRA entries to disk. */
+ for(i = 0, rra_start = rra_begin;
+ i < rrd.stat_head->rra_cnt;
+ rra_start += rrd.rra_def[i].row_cnt * rrd.stat_head -> ds_cnt * sizeof(rrd_value_t),
+ i++) {
+ /* is there anything to write for this RRA? If not, continue. */
+ if (rra_step_cnt[i] == 0) continue;
+
+ /* write the first row */
#ifdef DEBUG
- fprintf(stderr," ** MAXIMUM %e\n",
- rrd.cdp_prep[iii].scratch[CDP_val].u_val);
+ fprintf(stderr," -- RRA Preseek %ld\n",ftell(rrd_file));
#endif
- break;
- case CF_LAST:
- rrd.cdp_prep[iii].scratch[CDP_val].u_val=pdp_temp[ii];
+ rrd.rra_ptr[i].cur_row++;
+ if (rrd.rra_ptr[i].cur_row >= rrd.rra_def[i].row_cnt)
+ rrd.rra_ptr[i].cur_row = 0; /* wrap around */
+ /* positition on the first row */
+ rra_pos_tmp = rra_start +
+ (rrd.stat_head->ds_cnt)*(rrd.rra_ptr[i].cur_row)*sizeof(rrd_value_t);
+ if(rra_pos_tmp != rra_current) {
+ if(fseek(rrd_file, rra_pos_tmp, SEEK_SET) != 0){
+ rrd_set_error("seek error in rrd");
+ break;
+ }
+ rra_current = rra_pos_tmp;
+ }
#ifdef DEBUG
- fprintf(stderr," ** LAST %e\n",
- rrd.cdp_prep[iii].scratch[CDP_val].u_val);
+ fprintf(stderr," -- RRA Postseek %ld\n",ftell(rrd_file));
#endif
- break;
- default:
- rrd_set_error("Unknown cf %s",
- rrd.rra_def[i].cf_nam);
- break;
- }
- }
- }
-
-
- /* is the data in the cdp_prep ready to go into
- * its rra ? */
- if((pdp_st %
- (rrd.rra_def[i].pdp_cnt*rrd.stat_head->pdp_step)) == 0){
-
- /* prepare cdp_pref for its transition to the rra. */
- if (rrd.cdp_prep[iii].scratch[CDP_unkn_pdp_cnt].u_cnt
- > rrd.rra_def[i].pdp_cnt*
- rrd.rra_def[i].par[RRA_cdp_xff_val].u_val)
- /* to much of the cdp_prep is unknown ... */
- rrd.cdp_prep[iii].scratch[CDP_val].u_val = DNAN;
- else if (current_cf == CF_AVERAGE){
- /* for a real average we have to divide
- * the sum we built earlier on. While ignoring
- * the unknown pdps */
- rrd.cdp_prep[iii].scratch[CDP_val].u_val
- /= (rrd.rra_def[i].pdp_cnt
- -rrd.cdp_prep[iii].scratch[CDP_unkn_pdp_cnt].u_cnt);
- }
- /* we can write straight away, because we are
- * already in the right place ... */
-
+ scratch_idx = CDP_primary_val;
+ write_RRA_row(&rrd, i, &rra_current, scratch_idx, rrd_file);
+ if (rrd_test_error()) break;
+
+ /* write other rows of the bulk update, if any */
+ scratch_idx = CDP_secondary_val;
+ for ( ; rra_step_cnt[i] > 1;
+ rra_step_cnt[i]--, rrd.rra_ptr[i].cur_row++)
+ {
+ if (rrd.rra_ptr[i].cur_row == rrd.rra_def[i].row_cnt)
+ {
#ifdef DEBUG
- fprintf(stderr," -- RRA WRITE VALUE %e, at %ld\n",
- rrd.cdp_prep[iii].scratch[CDP_val].u_val,ftell(rrd_file));
+ fprintf(stderr,"Wraparound for RRA %s, %lu updates left\n",
+ rrd.rra_def[i].cf_nam, rra_step_cnt[i] - 1);
#endif
-
- if(fwrite(&(rrd.cdp_prep[iii].scratch[CDP_val].u_val),
- sizeof(rrd_value_t),1,rrd_file) != 1){
- rrd_set_error("writing rrd");
- break;
- }
- rra_current += sizeof(rrd_value_t);
- wrote_to_file = 1;
-
+ /* wrap */
+ rrd.rra_ptr[i].cur_row = 0;
+ /* seek back to beginning of current rra */
+ if (fseek(rrd_file, rra_start, SEEK_SET) != 0)
+ {
+ rrd_set_error("seek error in rrd");
+ break;
+ }
#ifdef DEBUG
- fprintf(stderr," -- RRA WROTE new at %ld\n",ftell(rrd_file));
+ fprintf(stderr," -- Wraparound Postseek %ld\n",ftell(rrd_file));
#endif
-
- /* make cdp_prep ready for the next run */
- rrd.cdp_prep[iii].scratch[CDP_val].u_val = DNAN;
- rrd.cdp_prep[iii].scratch[CDP_unkn_pdp_cnt].u_cnt = 0;
- }
- }
- /* break out of this loop if error_string has been set */
- if (rrd_test_error())
- break;
+ rra_current = rra_start;
+ }
+ write_RRA_row(&rrd, i, &rra_current, scratch_idx, rrd_file);
}
- /* break out of this loop if error_string has been set */
+
if (rrd_test_error())
- break;
- /* to be able to position correctly in the next rra w move
- * the rra_start pointer on to the next rra */
- rra_start += rrd.rra_def[i].row_cnt
- *rrd.stat_head->ds_cnt*sizeof(rrd_value_t);
+ break;
+ } /* RRA LOOP */
- }
/* break out of the argument parsing loop if error_string is set */
if (rrd_test_error()){
- free(step_start);
- break;
- }
- }
+ free(step_start);
+ break;
+ }
+
+ } /* endif a pdp_st has occurred */
rrd.live_head->last_up = current_time;
free(step_start);
- }
+ } /* function argument loop */
+ if (seasonal_coef != NULL) free(seasonal_coef);
+ if (last_seasonal_coef != NULL) free(last_seasonal_coef);
+ if (rra_step_cnt != NULL) free(rra_step_cnt);
/* if we got here and if there is an error and if the file has not been
* written to, then close things up and return. */
return(-1);
}
+ /* calling the smoothing code here guarantees at most
+ * one smoothing operation per rrd_update call. Unfortunately,
+ * it is possible with bulk updates, or a long-delayed update
+ * for smoothing to occur off-schedule. This really isn't
+ * critical except during the burning cycles. */
+ if (schedule_smooth)
+ {
+#ifndef WIN32
+ rrd_file = fopen(argv[optind],"r+");
+#else
+ rrd_file = fopen(argv[optind],"rb+");
+#endif
+ rra_start = rra_begin;
+ for (i = 0; i < rrd.stat_head -> rra_cnt; ++i)
+ {
+ if (cf_conv(rrd.rra_def[i].cf_nam) == CF_DEVSEASONAL ||
+ cf_conv(rrd.rra_def[i].cf_nam) == CF_SEASONAL)
+ {
+#ifdef DEBUG
+ fprintf(stderr,"Running smoother for rra %ld\n",i);
+#endif
+ apply_smoother(&rrd,i,rra_start,rrd_file);
+ if (rrd_test_error())
+ break;
+ }
+ rra_start += rrd.rra_def[i].row_cnt
+ *rrd.stat_head->ds_cnt*sizeof(rrd_value_t);
+ }
+ fclose(rrd_file);
+ }
rrd_free(&rrd);
free(updvals);
free(tmpl_idx);
return(stat);
}
+
+
+void
+write_RRA_row (rrd_t *rrd, unsigned long rra_idx, unsigned long *rra_current,
+ unsigned short CDP_scratch_idx, FILE *rrd_file)
+{
+ unsigned long ds_idx, cdp_idx;
+
+ for (ds_idx = 0; ds_idx < rrd -> stat_head -> ds_cnt; ds_idx++)
+ {
+ /* compute the cdp index */
+ cdp_idx =rra_idx * (rrd -> stat_head->ds_cnt) + ds_idx;
+#ifdef DEBUG
+ fprintf(stderr," -- RRA WRITE VALUE %e, at %ld CF:%s\n",
+ rrd -> cdp_prep[cdp_idx].scratch[CDP_scratch_idx].u_val,ftell(rrd_file),
+ rrd -> rra_def[rra_idx].cf_nam);
+#endif
+
+ if(fwrite(&(rrd -> cdp_prep[cdp_idx].scratch[CDP_scratch_idx].u_val),
+ sizeof(rrd_value_t),1,rrd_file) != 1)
+ {
+ rrd_set_error("writing rrd");
+ return;
+ }
+ *rra_current += sizeof(rrd_value_t);
+ }
+}
projects / rrdtool.git / blobdiff