Hermholtz
commented
5 years ago It's not params problem. After creating the watcher using JSON and eliminating params I've got different NullPointerException:
"script_stack": [
"if (ctx.payload.aggregations.metricAgg.value > 0.2) { ",
" ^---- HERE"
],
"script": "if (ctx.payload.aggregations.metricAgg.value > 0.2) { return true; } return false;",Here's the complete execution context:
{
"watch_id": "abf21150-cdf2-4605-945d-928d8b354100",
"node": "Z5u2jQE6SW6y-pHPh0wo-w",
"state": "failed",
"status": {
"state": {
"active": true,
"timestamp": "2019-07-09T11:59:01.422Z"
},
"actions": {
"logging_1": {
"ack": {
"timestamp": "2019-07-09T11:59:01.422Z",
"state": "awaits_successful_execution"
}
}
},
"execution_state": "failed",
"version": -1
},
"trigger_event": {
"type": "schedule",
"triggered_time": "2019-07-09T12:00:01.901Z",
"schedule": {
"scheduled_time": "2019-07-09T12:00:01.432Z"
}
},
"input": {
"search": {
"request": {
"search_type": "query_then_fetch",
"indices": [
"metricbeat*"
],
"rest_total_hits_as_int": true,
"body": {
"size": 0,
"query": {
"bool": {
"filter": {
"range": {
"@timestamp": {
"gte": "{{ctx.trigger.scheduled_time}}||-2m",
"lte": "{{ctx.trigger.scheduled_time}}",
"format": "strict_date_optional_time||epoch_millis"
}
}
}
}
},
"aggs": {
"metricAgg": {
"avg": {
"field": "system.cpu.total.pct"
}
}
}
}
}
}
},
"condition": {
"script": {
"source": "if (ctx.payload.aggregations.metricAgg.value > 0.2) { return true; } return false;",
"lang": "painless"
}
},
"metadata": {
"name": "CPU alert manual",
"watcherui": {
"trigger_interval_unit": "m",
"agg_type": "avg",
"time_field": "@timestamp",
"trigger_interval_size": 1,
"term_size": null,
"time_window_unit": "m",
"threshold_comparator": ">",
"term_field": null,
"index": [
"metricbeat*"
],
"time_window_size": 2,
"threshold": 0.2,
"agg_field": "system.cpu.total.pct"
},
"xpack": {
"type": "threshold"
}
},
"result": {
"execution_time": "2019-07-09T12:00:01.901Z",
"execution_duration": 7,
"input": {
"type": "search",
"status": "success",
"payload": {
"_shards": {
"total": 1,
"failed": 0,
"successful": 1,
"skipped": 0
},
"hits": {
"hits": [],
"total": 0,
"max_score": null
},
"took": 0,
"timed_out": false,
"aggregations": {
"metricAgg": {
"value": null
}
}
},
"search": {
"request": {
"search_type": "query_then_fetch",
"indices": [
"metricbeat*"
],
"rest_total_hits_as_int": true,
"body": {
"size": 0,
"query": {
"bool": {
"filter": {
"range": {
"@timestamp": {
"gte": "2019-07-09T12:00:01.432Z||-2m",
"lte": "2019-07-09T12:00:01.432Z",
"format": "strict_date_optional_time||epoch_millis"
}
}
}
}
},
"aggs": {
"metricAgg": {
"avg": {
"field": "system.cpu.total.pct"
}
}
}
}
}
}
},
"actions": []
},
"exception": {
"type": "script_exception",
"reason": "runtime error",
"script_stack": [
"if (ctx.payload.aggregations.metricAgg.value > 0.2) { ",
" ^---- HERE"
],
"script": "if (ctx.payload.aggregations.metricAgg.value > 0.2) { return true; } return false;",
"lang": "painless",
"caused_by": {
"type": "null_pointer_exception",
"reason": null,
"stack_trace": "java.lang.NullPointerException\n\tat org.elasticsearch.painless.DefMath.gt(DefMath.java:756)\n\tat java.base/java.lang.invoke.MethodHandle.invokeWithArguments(MethodHandle.java:719)\n\tat org.elasticsearch.painless.DefBootstrap$MIC.fallback(DefBootstrap.java:378)\n\tat org.elasticsearch.painless.PainlessScript$Script.execute(if (ctx.payload.aggregations.metricAgg.value > 0.2) { return true; } return false;:39)\n\tat org.elasticsearch.xpack.watcher.condition.ScriptCondition.doExecute(ScriptCondition.java:60)\n\tat org.elasticsearch.xpack.watcher.condition.ScriptCondition.execute(ScriptCondition.java:55)\n\tat org.elasticsearch.xpack.watcher.execution.ExecutionService.executeInner(ExecutionService.java:495)\n\tat org.elasticsearch.xpack.watcher.execution.ExecutionService.execute(ExecutionService.java:309)\n\tat org.elasticsearch.xpack.watcher.execution.ExecutionService.lambda$executeAsync$5(ExecutionService.java:410)\n\tat org.elasticsearch.xpack.watcher.execution.ExecutionService$WatchExecutionTask.run(ExecutionService.java:605)\n\tat org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingRunnable.run(ThreadContext.java:688)\n\tat java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)\n\tat java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)\n\tat java.base/java.lang.Thread.run(Thread.java:835)\n"
},
"stack_trace": "ScriptException[runtime error]; nested: NullPointerException;\n\tat org.elasticsearch.painless.PainlessScript.convertToScriptException(PainlessScript.java:94)\n\tat org.elasticsearch.painless.PainlessScript$Script.execute(if (ctx.payload.aggregations.metricAgg.value > 0.2) { return true; } return false;:39)\n\tat org.elasticsearch.xpack.watcher.condition.ScriptCondition.doExecute(ScriptCondition.java:60)\n\tat org.elasticsearch.xpack.watcher.condition.ScriptCondition.execute(ScriptCondition.java:55)\n\tat org.elasticsearch.xpack.watcher.execution.ExecutionService.executeInner(ExecutionService.java:495)\n\tat org.elasticsearch.xpack.watcher.execution.ExecutionService.execute(ExecutionService.java:309)\n\tat org.elasticsearch.xpack.watcher.execution.ExecutionService.lambda$executeAsync$5(ExecutionService.java:410)\n\tat org.elasticsearch.xpack.watcher.execution.ExecutionService$WatchExecutionTask.run(ExecutionService.java:605)\n\tat org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingRunnable.run(ThreadContext.java:688)\n\tat java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)\n\tat java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)\n\tat java.base/java.lang.Thread.run(Thread.java:835)\nCaused by: java.lang.NullPointerException\n\tat org.elasticsearch.painless.DefMath.gt(DefMath.java:756)\n\tat java.base/java.lang.invoke.MethodHandle.invokeWithArguments(MethodHandle.java:719)\n\tat org.elasticsearch.painless.DefBootstrap$MIC.fallback(DefBootstrap.java:378)\n\t... 11 more\n"
}
}
SemionPar
elasticmachine
skmizuho
cjcenizal
jdconrad
avoidik
silverjason
Kibana version: 7.2.0
Elasticsearch version: 7.2.0
Server OS version: CentOS 7.5
Browser version: any
Browser OS version: any
Original install method (e.g. download page, yum, from source, etc.): yum
Describe the bug: Simple watcher yields NullPointerException errors instead of succeeding. Excerpt from the log:
Steps to reproduce:
Expected behavior: Message logged
Screenshots (if relevant):
Execution output:
Provide logs and/or server output (if relevant):
Any additional context: I'm going to have a presentation on Friday for an important client about alerting and ML, and just few days before it this disappointing surprise happens...