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Briefly, this error occurs when Elasticsearch is unable to execute a watch, which is a part of the alerting feature. This could be due to a variety of reasons such as incorrect watch configuration, insufficient permissions, or system resource issues. To resolve this, you can check the watch configuration for errors, ensure the user has the necessary permissions to execute the watch, or check the system resources to ensure there’s enough memory and disk space. Additionally, checking the Elasticsearch logs can provide more detailed information about the cause of the error.
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This guide will help you check for common problems that cause the log ” failed to execute watch [{}] ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin.
Log Context
Log “failed to execute watch [{}]” classname is ExecutionService.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :
private void logWatchRecord(WatchExecutionContext ctx; Exception e) {
// failed watches stack traces are only logged in debug; otherwise they should be checked out in the history
if (logger.isDebugEnabled()) {
logger.debug(() -> "failed to execute watch [" + ctx.id().watchId() + "]"; e);
} else {
logger.warn("failed to execute watch [{}]"; ctx.id().watchId());
}
}
/*
The execution of an watch is split into two phases:
