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[Backport 2.13] fix fieldLimit exception in docLevelMonitor #1541

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merged 1 commit into from
May 2, 2024
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[Backport 2.13] fix fieldLimit exception in docLevelMonitor #1541

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12 changes: 10 additions & 2 deletions alerting/src/main/kotlin/org/opensearch/alerting/DocumentLevelMonitorRunner.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -75,8 +75,16 @@ class DocumentLevelMonitorRunner : MonitorRunner() {
monitorCtx.alertIndices!!.createOrUpdateInitialFindingHistoryIndex(monitor.dataSources)
} catch (e: Exception) {
val id = if (monitor.id.trim().isEmpty()) "_na_" else monitor.id
logger.error("Error setting up alerts and findings indices for monitor: $id", e)
monitorResult = monitorResult.copy(error = AlertingException.wrap(e))
val unwrappedException = ExceptionsHelper.unwrapCause(e)
if (unwrappedException is IllegalArgumentException && unwrappedException.message?.contains("Limit of total fields") == true) {
val errorMessage =
"Monitor [$id] can't process index [$monitor.dataSources] due to field mapping limit"
logger.error("Exception: ${unwrappedException.message}")
monitorResult = monitorResult.copy(error = AlertingException(errorMessage, RestStatus.INTERNAL_SERVER_ERROR, e))
} else {
logger.error("Error setting up alerts and findings indices for monitor: $id", e)
monitorResult = monitorResult.copy(error = AlertingException.wrap(e))
}
}
try {
validate(monitor)
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