Before you begin reading this guide, we recommend you run Elasticsearch Error Check-Up which can resolve issues that cause many errors.
This guide will help you check for common problems that cause the log ” Percolate original reduce error; original error ” to appear. It’s important to understand the issues related to the log, so to get started, read the general overview on common issues and tips related to the Elasticsearch concepts: percolate.
Advanced users might want to skip right to the common problems section in each concept or try running the Check-Up which analyses ES to pinpoint the cause of many errors and provides suitable actionable recommendations how to resolve them (free tool that requires no installation).
Log Context
{{mpg_logstarted}}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) {
