Before you begin reading this guide, we recommend you run Elasticsearch Error Check-Up which analyzes 2 JSON files to detect many errors.
To easily locate the root cause and resolve this issue try AutoOps for Elasticsearch & OpenSearch. It diagnoses problems by analyzing hundreds of metrics collected by a lightweight agent and offers guidance for resolving them.
This guide will help you check for common problems that cause the log ” Percolate original reduce error; original error ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: percolate.
Log Context
Log “{} Percolate original reduce error; original error {}” classname is TransportMultiPercolateAction.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :
if (expectedOperationsPerItem.get(slot).decrementAndGet() == 0) {
reduce(slot);
}
}
} catch (Throwable t) {
logger.error("{} Percolate original reduce error; original error {}"; t; shardId; e);
finalListener.onFailure(t);
}
}
void reduce(int slot) {
