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[rrd4j] fixed oom when requesting data and boundary=true (#14292) 

* Fixed end date when requesting data using rrd4j and boundary=true

Signed-off-by: Boris Krivonog <boris.krivonog@inova.si>
This commit is contained in:
Boris Krivonog 2023-02-01 21:06:27 +01:00 committed by GitHub
parent c162e6668d
commit 93d871a88f
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1 changed files with 12 additions and 9 deletions
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21
bundles/org.openhab.persistence.rrd4j/src/main/java/org/openhab/persistence/rrd4j/internal/RRD4jPersistenceService.java
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@ -252,6 +252,12 @@ public class RRD4jPersistenceService implements QueryablePersistenceService {
@Override
public Iterable<HistoricItem> query(FilterCriteria filter) {
ZonedDateTime filterBeginDate = filter.getBeginDate();
ZonedDateTime filterEndDate = filter.getEndDate();
if (filterBeginDate != null && filterEndDate != null && filterBeginDate.isAfter(filterEndDate)) {
throw new IllegalArgumentException("begin (" + filterBeginDate + ") before end (" + filterEndDate + ")");
}
String itemName = filter.getItemName();
RrdDb db = null;
@ -280,14 +286,11 @@ public class RRD4jPersistenceService implements QueryablePersistenceService {
}
long start = 0L;
// set end to {@link Instant#MAX} instead of current timestamp to enable requesting future time ranges including
// boundary values via REST API
// see discussion in https://github.com/openhab/openhab-addons/pull/14238
long end = filter.getEndDate() == null ? Instant.MAX.getEpochSecond()
: filter.getEndDate().toInstant().getEpochSecond();
long end = filterEndDate == null ? System.currentTimeMillis() / 1000
: filterEndDate.toInstant().getEpochSecond();
try {
if (filter.getBeginDate() == null) {
if (filterBeginDate == null) {
// as rrd goes back for years and gets more and more
// inaccurate, we only support descending order
// and a single return value
@ -296,7 +299,7 @@ public class RRD4jPersistenceService implements QueryablePersistenceService {
// query, which we want to support
if (filter.getOrdering() == Ordering.DESCENDING && filter.getPageSize() == 1
&& filter.getPageNumber() == 0) {
if (filter.getEndDate() == null) {
if (filterEndDate == null) {
// we are asked only for the most recent value!
double lastValue = db.getLastDatasourceValue(DATASOURCE_STATE);
if (!Double.isNaN(lastValue)) {
@ -315,13 +318,13 @@ public class RRD4jPersistenceService implements QueryablePersistenceService {
"rrd4j does not allow querys without a begin date, unless order is descending and a single value is requested");
}
} else {
start = filter.getBeginDate().toInstant().getEpochSecond();
start = filterBeginDate.toInstant().getEpochSecond();
}
// do not call method {@link RrdDb#createFetchRequest(ConsolFun, long, long, long)} if start > end to avoid
// an IAE to be thrown
if (start > end) {
logger.warn("Could not query rrd4j database for item '{}': start ({}) > end ({})", itemName, start,
logger.debug("Could not query rrd4j database for item '{}': start ({}) > end ({})", itemName, start,
end);
return List.of();
}