void addValue(double value) throws IOException {
try {
// request RRD database reference from the pool
final RrdDb rrdDb = rrdPool.requestRrdDb(rrdFileName);
synchronized (rrdDb) {
try {
// create sample with the current timestamp
final Sample sample = rrdDb.createSample();
// test pour éviter l'erreur suivante au redéploiement par exemple:
// org.jrobin.core.RrdException:
// Bad sample timestamp x. Last update time was x, at least one second step is required
if (sample.getTime() > rrdDb.getLastUpdateTime()) {
// set value for load datasource
sample.setValue(getDataSourceName(), value);
// update database
sample.update();
}
} finally {
// release RRD database reference
rrdPool.release(rrdDb);
}
}
} catch (final FileNotFoundException e) {
if (e.getMessage() != null && e.getMessage().endsWith("[non existent]")) {
// cf issue 255
LOG.debug(
"A JRobin file was deleted and created again: " + new File(rrdFileName).getPath());
resetFile();
addValue(value);
}
} catch (final RrdException e) {
if (e.getMessage() != null && e.getMessage().startsWith("Invalid file header")) {
// le fichier RRD a été corrompu, par exemple en tuant le process java au milieu
// d'un write, donc on efface le fichier corrompu et on le recrée pour corriger
// le problème
LOG.debug(
"A JRobin file was found corrupted and was reset: " + new File(rrdFileName).getPath());
resetFile();
addValue(value);
}
throw createIOException(e);
}
}
static long deleteObsoleteJRobinFiles(String application) throws IOException {
final Calendar nowMinusThreeMonthsAndADay = Calendar.getInstance();
nowMinusThreeMonthsAndADay.add(Calendar.DAY_OF_YEAR, -getObsoleteGraphsDays());
nowMinusThreeMonthsAndADay.add(Calendar.DAY_OF_YEAR, -1);
final long timestamp = Util.getTimestamp(nowMinusThreeMonthsAndADay);
final RrdDbPool rrdPool = getRrdDbPool();
final int counterRequestIdLength = new CounterRequest("", "").getId().length();
long diskUsage = 0;
for (final File file : listRrdFiles(application)) {
// on ne supprime que les fichiers rrd de requêtes (les autres sont peu nombreux)
if (file.getName().length() > counterRequestIdLength
&& file.lastModified() < nowMinusThreeMonthsAndADay.getTimeInMillis()) {
try {
final RrdDb rrdDb = rrdPool.requestRrdDb(file.getPath());
final boolean obsolete = rrdDb.getLastUpdateTime() < timestamp;
rrdPool.release(rrdDb);
boolean deleted = false;
if (obsolete) {
deleted = file.delete();
}
if (!deleted) {
diskUsage += file.length();
}
} catch (final IOException e) {
continue;
} catch (final RrdException e) {
continue;
}
} else {
diskUsage += file.length();
}
}
// on retourne true si tous les fichiers .rrd obsolètes ont été supprimés, false sinon
return diskUsage;
}
