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QueryIndex rollover when field mapping limit is reached (#725)
Signed-off-by: Petar Dzepina <[email protected]>
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245 changes: 245 additions & 0 deletions
245
alerting/src/main/kotlin/org/opensearch/alerting/MonitorMetadataService.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,245 @@ | ||
| /* | ||
| * Copyright OpenSearch Contributors | ||
| * SPDX-License-Identifier: Apache-2.0 | ||
| */ | ||
|
|
||
| package org.opensearch.alerting | ||
|
|
||
| import kotlinx.coroutines.CoroutineName | ||
| import kotlinx.coroutines.CoroutineScope | ||
| import kotlinx.coroutines.Dispatchers | ||
| import kotlinx.coroutines.SupervisorJob | ||
| import org.apache.logging.log4j.LogManager | ||
| import org.opensearch.ExceptionsHelper | ||
| import org.opensearch.OpenSearchSecurityException | ||
| import org.opensearch.action.DocWriteRequest | ||
| import org.opensearch.action.DocWriteResponse | ||
| import org.opensearch.action.admin.indices.get.GetIndexRequest | ||
| import org.opensearch.action.admin.indices.get.GetIndexResponse | ||
| import org.opensearch.action.admin.indices.stats.IndicesStatsAction | ||
| import org.opensearch.action.admin.indices.stats.IndicesStatsRequest | ||
| import org.opensearch.action.admin.indices.stats.IndicesStatsResponse | ||
| import org.opensearch.action.get.GetRequest | ||
| import org.opensearch.action.get.GetResponse | ||
| import org.opensearch.action.index.IndexRequest | ||
| import org.opensearch.action.index.IndexResponse | ||
| import org.opensearch.action.support.WriteRequest | ||
| import org.opensearch.alerting.model.MonitorMetadata | ||
| import org.opensearch.alerting.opensearchapi.suspendUntil | ||
| import org.opensearch.alerting.settings.AlertingSettings | ||
| import org.opensearch.alerting.util.AlertingException | ||
| import org.opensearch.client.Client | ||
| import org.opensearch.cluster.service.ClusterService | ||
| import org.opensearch.common.settings.Settings | ||
| import org.opensearch.common.unit.TimeValue | ||
| import org.opensearch.common.xcontent.LoggingDeprecationHandler | ||
| import org.opensearch.common.xcontent.NamedXContentRegistry | ||
| import org.opensearch.common.xcontent.ToXContent | ||
| import org.opensearch.common.xcontent.XContentFactory | ||
| import org.opensearch.common.xcontent.XContentHelper | ||
| import org.opensearch.common.xcontent.XContentParser | ||
| import org.opensearch.common.xcontent.XContentParserUtils | ||
| import org.opensearch.common.xcontent.XContentType | ||
| import org.opensearch.commons.alerting.model.DocLevelMonitorInput | ||
| import org.opensearch.commons.alerting.model.Monitor | ||
| import org.opensearch.commons.alerting.model.ScheduledJob | ||
| import org.opensearch.index.seqno.SequenceNumbers | ||
| import org.opensearch.rest.RestStatus | ||
| import org.opensearch.transport.RemoteTransportException | ||
|
|
||
| private val log = LogManager.getLogger(MonitorMetadataService::class.java) | ||
|
|
||
| object MonitorMetadataService : | ||
| CoroutineScope by CoroutineScope(SupervisorJob() + Dispatchers.Default + CoroutineName("MonitorMetadataService")) { | ||
|
|
||
| private lateinit var client: Client | ||
| private lateinit var xContentRegistry: NamedXContentRegistry | ||
| private lateinit var clusterService: ClusterService | ||
| private lateinit var settings: Settings | ||
|
|
||
| @Volatile private lateinit var indexTimeout: TimeValue | ||
|
|
||
| fun initialize( | ||
| client: Client, | ||
| clusterService: ClusterService, | ||
| xContentRegistry: NamedXContentRegistry, | ||
| settings: Settings | ||
| ) { | ||
| this.clusterService = clusterService | ||
| this.client = client | ||
| this.xContentRegistry = xContentRegistry | ||
| this.settings = settings | ||
| this.indexTimeout = AlertingSettings.INDEX_TIMEOUT.get(settings) | ||
| this.clusterService.clusterSettings.addSettingsUpdateConsumer(AlertingSettings.INDEX_TIMEOUT) { indexTimeout = it } | ||
| } | ||
|
|
||
| @Suppress("ComplexMethod", "ReturnCount") | ||
| suspend fun upsertMetadata(metadata: MonitorMetadata, updating: Boolean): MonitorMetadata { | ||
| try { | ||
| val indexRequest = IndexRequest(ScheduledJob.SCHEDULED_JOBS_INDEX) | ||
| .setRefreshPolicy(WriteRequest.RefreshPolicy.IMMEDIATE) | ||
| .source(metadata.toXContent(XContentFactory.jsonBuilder(), ToXContent.MapParams(mapOf("with_type" to "true")))) | ||
| .id(metadata.id) | ||
| .routing(metadata.monitorId) | ||
| .setIfSeqNo(metadata.seqNo) | ||
| .setIfPrimaryTerm(metadata.primaryTerm) | ||
| .timeout(indexTimeout) | ||
|
|
||
| if (updating) { | ||
| indexRequest.id(metadata.id).setIfSeqNo(metadata.seqNo).setIfPrimaryTerm(metadata.primaryTerm) | ||
| } else { | ||
| indexRequest.opType(DocWriteRequest.OpType.CREATE) | ||
| } | ||
| val response: IndexResponse = client.suspendUntil { index(indexRequest, it) } | ||
| when (response.result) { | ||
| DocWriteResponse.Result.DELETED, DocWriteResponse.Result.NOOP, DocWriteResponse.Result.NOT_FOUND, null -> { | ||
| val failureReason = "The upsert metadata call failed with a ${response.result?.lowercase} result" | ||
| log.error(failureReason) | ||
| throw AlertingException(failureReason, RestStatus.INTERNAL_SERVER_ERROR, IllegalStateException(failureReason)) | ||
| } | ||
| DocWriteResponse.Result.CREATED, DocWriteResponse.Result.UPDATED -> { | ||
| log.debug("Successfully upserted MonitorMetadata:${metadata.id} ") | ||
| } | ||
| } | ||
| return metadata.copy( | ||
| seqNo = response.seqNo, | ||
| primaryTerm = response.primaryTerm | ||
| ) | ||
| } catch (e: Exception) { | ||
| throw AlertingException.wrap(e) | ||
| } | ||
| } | ||
|
|
||
| suspend fun getOrCreateMetadata(monitor: Monitor, createWithRunContext: Boolean = true): Pair<MonitorMetadata, Boolean> { | ||
| try { | ||
| val created = true | ||
| val metadata = getMetadata(monitor) | ||
| return if (metadata != null) { | ||
| metadata to !created | ||
| } else { | ||
| val newMetadata = createNewMetadata(monitor, createWithRunContext = createWithRunContext) | ||
| upsertMetadata(newMetadata, updating = false) to created | ||
| } | ||
| } catch (e: Exception) { | ||
| throw AlertingException.wrap(e) | ||
| } | ||
| } | ||
|
|
||
| suspend fun getMetadata(monitor: Monitor): MonitorMetadata? { | ||
| try { | ||
| val metadataId = MonitorMetadata.getId(monitor) | ||
| val getRequest = GetRequest(ScheduledJob.SCHEDULED_JOBS_INDEX, metadataId).routing(monitor.id) | ||
|
|
||
| val getResponse: GetResponse = client.suspendUntil { get(getRequest, it) } | ||
| return if (getResponse.isExists) { | ||
| val xcp = XContentHelper.createParser( | ||
| xContentRegistry, LoggingDeprecationHandler.INSTANCE, | ||
| getResponse.sourceAsBytesRef, XContentType.JSON | ||
| ) | ||
| XContentParserUtils.ensureExpectedToken(XContentParser.Token.START_OBJECT, xcp.nextToken(), xcp) | ||
| MonitorMetadata.parse(xcp) | ||
| } else { | ||
| null | ||
| } | ||
| } catch (e: Exception) { | ||
| if (e.message?.contains("no such index") == true) { | ||
| return null | ||
| } else { | ||
| throw AlertingException.wrap(e) | ||
| } | ||
| } | ||
| } | ||
|
|
||
| suspend fun recreateRunContext(metadata: MonitorMetadata, monitor: Monitor): MonitorMetadata { | ||
| try { | ||
| val monitorIndex = if (monitor.monitorType == Monitor.MonitorType.DOC_LEVEL_MONITOR) | ||
| (monitor.inputs[0] as DocLevelMonitorInput).indices[0] | ||
| else null | ||
| val runContext = if (monitor.monitorType == Monitor.MonitorType.DOC_LEVEL_MONITOR) | ||
| createFullRunContext(monitorIndex, metadata.lastRunContext as MutableMap<String, MutableMap<String, Any>>) | ||
| else null | ||
| if (runContext != null) { | ||
| return metadata.copy( | ||
| lastRunContext = runContext | ||
| ) | ||
| } else { | ||
| return metadata | ||
| } | ||
| } catch (e: Exception) { | ||
| throw AlertingException.wrap(e) | ||
| } | ||
| } | ||
|
|
||
| private suspend fun createNewMetadata(monitor: Monitor, createWithRunContext: Boolean): MonitorMetadata { | ||
| val monitorIndex = if (monitor.monitorType == Monitor.MonitorType.DOC_LEVEL_MONITOR) | ||
| (monitor.inputs[0] as DocLevelMonitorInput).indices[0] | ||
| else null | ||
| val runContext = | ||
| if (monitor.monitorType == Monitor.MonitorType.DOC_LEVEL_MONITOR && createWithRunContext) | ||
| createFullRunContext(monitorIndex) | ||
| else emptyMap() | ||
| return MonitorMetadata( | ||
| id = "${monitor.id}-metadata", | ||
| seqNo = SequenceNumbers.UNASSIGNED_SEQ_NO, | ||
| primaryTerm = SequenceNumbers.UNASSIGNED_PRIMARY_TERM, | ||
| monitorId = monitor.id, | ||
| lastActionExecutionTimes = emptyList(), | ||
| lastRunContext = runContext, | ||
| sourceToQueryIndexMapping = mutableMapOf() | ||
| ) | ||
| } | ||
|
|
||
| private suspend fun createFullRunContext( | ||
| index: String?, | ||
| existingRunContext: MutableMap<String, MutableMap<String, Any>>? = null | ||
| ): MutableMap<String, MutableMap<String, Any>> { | ||
| val lastRunContext = existingRunContext?.toMutableMap() ?: mutableMapOf() | ||
| try { | ||
| if (index == null) return mutableMapOf() | ||
| val getIndexRequest = GetIndexRequest().indices(index) | ||
| val getIndexResponse: GetIndexResponse = client.suspendUntil { | ||
| client.admin().indices().getIndex(getIndexRequest, it) | ||
| } | ||
| val indices = getIndexResponse.indices() | ||
|
|
||
| indices.forEach { indexName -> | ||
| if (!lastRunContext.containsKey(indexName)) { | ||
| lastRunContext[indexName] = createRunContextForIndex(index) | ||
| } | ||
| } | ||
| } catch (e: RemoteTransportException) { | ||
| val unwrappedException = ExceptionsHelper.unwrapCause(e) as Exception | ||
| throw AlertingException("Failed fetching index stats", RestStatus.INTERNAL_SERVER_ERROR, unwrappedException) | ||
| } catch (e: OpenSearchSecurityException) { | ||
| throw AlertingException( | ||
| "Failed fetching index stats - missing required index permissions: ${e.localizedMessage}", | ||
| RestStatus.INTERNAL_SERVER_ERROR, | ||
| e | ||
| ) | ||
| } catch (e: Exception) { | ||
| throw AlertingException("Failed fetching index stats", RestStatus.INTERNAL_SERVER_ERROR, e) | ||
| } | ||
| return lastRunContext | ||
| } | ||
|
|
||
| suspend fun createRunContextForIndex(index: String, createdRecently: Boolean = false): MutableMap<String, Any> { | ||
| val request = IndicesStatsRequest().indices(index).clear() | ||
| val response: IndicesStatsResponse = client.suspendUntil { execute(IndicesStatsAction.INSTANCE, request, it) } | ||
| if (response.status != RestStatus.OK) { | ||
| val errorMessage = "Failed fetching index stats for index:$index" | ||
| throw AlertingException(errorMessage, RestStatus.INTERNAL_SERVER_ERROR, IllegalStateException(errorMessage)) | ||
| } | ||
| val shards = response.shards.filter { it.shardRouting.primary() && it.shardRouting.active() } | ||
| val lastRunContext = HashMap<String, Any>() | ||
| lastRunContext["index"] = index | ||
| val count = shards.size | ||
| lastRunContext["shards_count"] = count | ||
|
|
||
| for (shard in shards) { | ||
| lastRunContext[shard.shardRouting.id.toString()] = | ||
| if (createdRecently) -1L | ||
| else shard.seqNoStats?.globalCheckpoint ?: SequenceNumbers.UNASSIGNED_SEQ_NO | ||
| } | ||
| return lastRunContext | ||
| } | ||
| } |
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