Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
added index to allow quicker lookup of
last_result
We experienced problems on certain StatusChecks that had a moderate number of StatusCheckResults that had problems looking up the latest check when updating. This lead to high load on the database and the app not being able to update checks correctly. Having an index on the exact lookup of `last_result` removes this problem.
- Loading branch information
Matthew Brown
committed
Sep 27, 2016
1 parent
ebb3d22
commit 2ec38c9
Showing
2 changed files
with
200 additions
and
1 deletion.
There are no files selected for viewing
196 changes: 196 additions & 0 deletions
196
cabot/cabotapp/migrations/0017_auto__add_index_statuscheckresult_check_id.py
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,196 @@ | ||
| # -*- coding: utf-8 -*- | ||
| from south.utils import datetime_utils as datetime | ||
| from south.db import db | ||
| from south.v2 import SchemaMigration | ||
| from django.db import models | ||
|
|
||
|
|
||
| class Migration(SchemaMigration): | ||
|
|
||
| def forwards(self, orm): | ||
| # Adding index on 'StatusCheckResult', fields ['check', u'id'] | ||
| db.create_index(u'cabotapp_statuscheckresult', ['check_id', u'id']) | ||
|
|
||
|
|
||
| def backwards(self, orm): | ||
| # Removing index on 'StatusCheckResult', fields ['check', u'id'] | ||
| db.delete_index(u'cabotapp_statuscheckresult', ['check_id', u'id']) | ||
|
|
||
|
|
||
| models = { | ||
| u'auth.group': { | ||
| 'Meta': {'object_name': 'Group'}, | ||
| u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}), | ||
| 'name': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '80'}), | ||
| 'permissions': ('django.db.models.fields.related.ManyToManyField', [], {'to': u"orm['auth.Permission']", 'symmetrical': 'False', 'blank': 'True'}) | ||
| }, | ||
| u'auth.permission': { | ||
| 'Meta': {'ordering': "(u'content_type__app_label', u'content_type__model', u'codename')", 'unique_together': "((u'content_type', u'codename'),)", 'object_name': 'Permission'}, | ||
| 'codename': ('django.db.models.fields.CharField', [], {'max_length': '100'}), | ||
| 'content_type': ('django.db.models.fields.related.ForeignKey', [], {'to': u"orm['contenttypes.ContentType']"}), | ||
| u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}), | ||
| 'name': ('django.db.models.fields.CharField', [], {'max_length': '50'}) | ||
| }, | ||
| u'auth.user': { | ||
| 'Meta': {'object_name': 'User'}, | ||
| 'date_joined': ('django.db.models.fields.DateTimeField', [], {'default': 'datetime.datetime.now'}), | ||
| 'email': ('django.db.models.fields.EmailField', [], {'max_length': '75', 'blank': 'True'}), | ||
| 'first_name': ('django.db.models.fields.CharField', [], {'max_length': '30', 'blank': 'True'}), | ||
| 'groups': ('django.db.models.fields.related.ManyToManyField', [], {'symmetrical': 'False', 'related_name': "u'user_set'", 'blank': 'True', 'to': u"orm['auth.Group']"}), | ||
| u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}), | ||
| 'is_active': ('django.db.models.fields.BooleanField', [], {'default': 'True'}), | ||
| 'is_staff': ('django.db.models.fields.BooleanField', [], {'default': 'False'}), | ||
| 'is_superuser': ('django.db.models.fields.BooleanField', [], {'default': 'False'}), | ||
| 'last_login': ('django.db.models.fields.DateTimeField', [], {'default': 'datetime.datetime.now'}), | ||
| 'last_name': ('django.db.models.fields.CharField', [], {'max_length': '30', 'blank': 'True'}), | ||
| 'password': ('django.db.models.fields.CharField', [], {'max_length': '128'}), | ||
| 'user_permissions': ('django.db.models.fields.related.ManyToManyField', [], {'symmetrical': 'False', 'related_name': "u'user_set'", 'blank': 'True', 'to': u"orm['auth.Permission']"}), | ||
| 'username': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '30'}) | ||
| }, | ||
| u'cabotapp.alertacknowledgement': { | ||
| 'Meta': {'object_name': 'AlertAcknowledgement'}, | ||
| 'cancelled_time': ('django.db.models.fields.DateTimeField', [], {'null': 'True', 'blank': 'True'}), | ||
| 'cancelled_user': ('django.db.models.fields.related.ForeignKey', [], {'blank': 'True', 'related_name': "'cancelleduser_set'", 'null': 'True', 'to': u"orm['auth.User']"}), | ||
| u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}), | ||
| 'service': ('django.db.models.fields.related.ForeignKey', [], {'to': u"orm['cabotapp.Service']"}), | ||
| 'time': ('django.db.models.fields.DateTimeField', [], {}), | ||
| 'user': ('django.db.models.fields.related.ForeignKey', [], {'to': u"orm['auth.User']"}) | ||
| }, | ||
| u'cabotapp.alertplugin': { | ||
| 'Meta': {'object_name': 'AlertPlugin'}, | ||
| 'enabled': ('django.db.models.fields.BooleanField', [], {'default': 'True'}), | ||
| u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}), | ||
| 'polymorphic_ctype': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "u'polymorphic_cabotapp.alertplugin_set'", 'null': 'True', 'to': u"orm['contenttypes.ContentType']"}), | ||
| 'title': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '30'}) | ||
| }, | ||
| u'cabotapp.alertpluginuserdata': { | ||
| 'Meta': {'unique_together': "(('title', 'user'),)", 'object_name': 'AlertPluginUserData'}, | ||
| u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}), | ||
| 'polymorphic_ctype': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "u'polymorphic_cabotapp.alertpluginuserdata_set'", 'null': 'True', 'to': u"orm['contenttypes.ContentType']"}), | ||
| 'title': ('django.db.models.fields.CharField', [], {'max_length': '30'}), | ||
| 'user': ('django.db.models.fields.related.ForeignKey', [], {'to': u"orm['cabotapp.UserProfile']"}) | ||
| }, | ||
| u'cabotapp.instance': { | ||
| 'Meta': {'ordering': "['name']", 'object_name': 'Instance'}, | ||
| 'address': ('django.db.models.fields.TextField', [], {'blank': 'True'}), | ||
| 'alerts': ('django.db.models.fields.related.ManyToManyField', [], {'to': u"orm['cabotapp.AlertPlugin']", 'symmetrical': 'False', 'blank': 'True'}), | ||
| 'alerts_enabled': ('django.db.models.fields.BooleanField', [], {'default': 'True'}), | ||
| 'email_alert': ('django.db.models.fields.BooleanField', [], {'default': 'False'}), | ||
| 'hackpad_id': ('django.db.models.fields.TextField', [], {'null': 'True', 'blank': 'True'}), | ||
| 'hipchat_alert': ('django.db.models.fields.BooleanField', [], {'default': 'True'}), | ||
| u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}), | ||
| 'last_alert_sent': ('django.db.models.fields.DateTimeField', [], {'null': 'True', 'blank': 'True'}), | ||
| 'name': ('django.db.models.fields.TextField', [], {}), | ||
| 'old_overall_status': ('django.db.models.fields.TextField', [], {'default': "'PASSING'"}), | ||
| 'overall_status': ('django.db.models.fields.TextField', [], {'default': "'PASSING'"}), | ||
| 'sms_alert': ('django.db.models.fields.BooleanField', [], {'default': 'False'}), | ||
| 'status_checks': ('django.db.models.fields.related.ManyToManyField', [], {'to': u"orm['cabotapp.StatusCheck']", 'symmetrical': 'False', 'blank': 'True'}), | ||
| 'telephone_alert': ('django.db.models.fields.BooleanField', [], {'default': 'False'}), | ||
| 'users_to_notify': ('django.db.models.fields.related.ManyToManyField', [], {'to': u"orm['auth.User']", 'symmetrical': 'False', 'blank': 'True'}) | ||
| }, | ||
| u'cabotapp.instancestatussnapshot': { | ||
| 'Meta': {'object_name': 'InstanceStatusSnapshot'}, | ||
| 'did_send_alert': ('django.db.models.fields.IntegerField', [], {'default': 'False'}), | ||
| u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}), | ||
| 'instance': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "'snapshots'", 'to': u"orm['cabotapp.Instance']"}), | ||
| 'num_checks_active': ('django.db.models.fields.IntegerField', [], {'default': '0'}), | ||
| 'num_checks_failing': ('django.db.models.fields.IntegerField', [], {'default': '0'}), | ||
| 'num_checks_passing': ('django.db.models.fields.IntegerField', [], {'default': '0'}), | ||
| 'overall_status': ('django.db.models.fields.TextField', [], {'default': "'PASSING'"}), | ||
| 'time': ('django.db.models.fields.DateTimeField', [], {'db_index': 'True'}) | ||
| }, | ||
| u'cabotapp.service': { | ||
| 'Meta': {'ordering': "['name']", 'object_name': 'Service'}, | ||
| 'alerts': ('django.db.models.fields.related.ManyToManyField', [], {'to': u"orm['cabotapp.AlertPlugin']", 'symmetrical': 'False', 'blank': 'True'}), | ||
| 'alerts_enabled': ('django.db.models.fields.BooleanField', [], {'default': 'True'}), | ||
| 'email_alert': ('django.db.models.fields.BooleanField', [], {'default': 'False'}), | ||
| 'hackpad_id': ('django.db.models.fields.TextField', [], {'null': 'True', 'blank': 'True'}), | ||
| 'hipchat_alert': ('django.db.models.fields.BooleanField', [], {'default': 'True'}), | ||
| u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}), | ||
| 'instances': ('django.db.models.fields.related.ManyToManyField', [], {'to': u"orm['cabotapp.Instance']", 'symmetrical': 'False', 'blank': 'True'}), | ||
| 'last_alert_sent': ('django.db.models.fields.DateTimeField', [], {'null': 'True', 'blank': 'True'}), | ||
| 'name': ('django.db.models.fields.TextField', [], {}), | ||
| 'old_overall_status': ('django.db.models.fields.TextField', [], {'default': "'PASSING'"}), | ||
| 'overall_status': ('django.db.models.fields.TextField', [], {'default': "'PASSING'"}), | ||
| 'sms_alert': ('django.db.models.fields.BooleanField', [], {'default': 'False'}), | ||
| 'status_checks': ('django.db.models.fields.related.ManyToManyField', [], {'to': u"orm['cabotapp.StatusCheck']", 'symmetrical': 'False', 'blank': 'True'}), | ||
| 'telephone_alert': ('django.db.models.fields.BooleanField', [], {'default': 'False'}), | ||
| 'url': ('django.db.models.fields.TextField', [], {'blank': 'True'}), | ||
| 'users_to_notify': ('django.db.models.fields.related.ManyToManyField', [], {'to': u"orm['auth.User']", 'symmetrical': 'False', 'blank': 'True'}) | ||
| }, | ||
| u'cabotapp.servicestatussnapshot': { | ||
| 'Meta': {'object_name': 'ServiceStatusSnapshot'}, | ||
| 'did_send_alert': ('django.db.models.fields.IntegerField', [], {'default': 'False'}), | ||
| u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}), | ||
| 'num_checks_active': ('django.db.models.fields.IntegerField', [], {'default': '0'}), | ||
| 'num_checks_failing': ('django.db.models.fields.IntegerField', [], {'default': '0'}), | ||
| 'num_checks_passing': ('django.db.models.fields.IntegerField', [], {'default': '0'}), | ||
| 'overall_status': ('django.db.models.fields.TextField', [], {'default': "'PASSING'"}), | ||
| 'service': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "'snapshots'", 'to': u"orm['cabotapp.Service']"}), | ||
| 'time': ('django.db.models.fields.DateTimeField', [], {'db_index': 'True'}) | ||
| }, | ||
| u'cabotapp.shift': { | ||
| 'Meta': {'object_name': 'Shift'}, | ||
| 'deleted': ('django.db.models.fields.BooleanField', [], {'default': 'False'}), | ||
| 'end': ('django.db.models.fields.DateTimeField', [], {}), | ||
| u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}), | ||
| 'start': ('django.db.models.fields.DateTimeField', [], {}), | ||
| 'uid': ('django.db.models.fields.TextField', [], {}), | ||
| 'user': ('django.db.models.fields.related.ForeignKey', [], {'to': u"orm['auth.User']"}) | ||
| }, | ||
| u'cabotapp.statuscheck': { | ||
| 'Meta': {'ordering': "['name']", 'object_name': 'StatusCheck'}, | ||
| 'active': ('django.db.models.fields.BooleanField', [], {'default': 'True'}), | ||
| 'allowed_num_failures': ('django.db.models.fields.IntegerField', [], {'default': '0', 'null': 'True'}), | ||
| 'cached_health': ('django.db.models.fields.TextField', [], {'null': 'True'}), | ||
| 'calculated_status': ('django.db.models.fields.CharField', [], {'default': "'passing'", 'max_length': '50', 'blank': 'True'}), | ||
| 'check_type': ('django.db.models.fields.CharField', [], {'max_length': '100', 'null': 'True'}), | ||
| 'created_by': ('django.db.models.fields.related.ForeignKey', [], {'to': u"orm['auth.User']", 'null': 'True'}), | ||
| 'debounce': ('django.db.models.fields.IntegerField', [], {'default': '0', 'null': 'True'}), | ||
| 'endpoint': ('django.db.models.fields.TextField', [], {'null': 'True'}), | ||
| 'expected_num_hosts': ('django.db.models.fields.IntegerField', [], {'default': '0', 'null': 'True'}), | ||
| 'frequency': ('django.db.models.fields.IntegerField', [], {'default': '5'}), | ||
| u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}), | ||
| 'importance': ('django.db.models.fields.CharField', [], {'default': "'ERROR'", 'max_length': '30'}), | ||
| 'last_run': ('django.db.models.fields.DateTimeField', [], {'null': 'True'}), | ||
| 'max_queued_build_time': ('django.db.models.fields.IntegerField', [], {'null': 'True', 'blank': 'True'}), | ||
| 'metric': ('django.db.models.fields.TextField', [], {'null': 'True'}), | ||
| 'name': ('django.db.models.fields.TextField', [], {}), | ||
| 'password': ('django.db.models.fields.TextField', [], {'null': 'True', 'blank': 'True'}), | ||
| 'polymorphic_ctype': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "u'polymorphic_cabotapp.statuscheck_set'", 'null': 'True', 'to': u"orm['contenttypes.ContentType']"}), | ||
| 'status_code': ('django.db.models.fields.TextField', [], {'default': '200', 'null': 'True'}), | ||
| 'text_match': ('django.db.models.fields.TextField', [], {'null': 'True', 'blank': 'True'}), | ||
| 'timeout': ('django.db.models.fields.IntegerField', [], {'default': '30', 'null': 'True'}), | ||
| 'username': ('django.db.models.fields.TextField', [], {'null': 'True', 'blank': 'True'}), | ||
| 'value': ('django.db.models.fields.TextField', [], {'null': 'True'}), | ||
| 'verify_ssl_certificate': ('django.db.models.fields.BooleanField', [], {'default': 'True'}) | ||
| }, | ||
| u'cabotapp.statuscheckresult': { | ||
| 'Meta': {'ordering': "['-time_complete']", 'object_name': 'StatusCheckResult', 'index_together': "(('check', 'time_complete'), ('check', 'id'))"}, | ||
| 'check': ('django.db.models.fields.related.ForeignKey', [], {'to': u"orm['cabotapp.StatusCheck']"}), | ||
| 'error': ('django.db.models.fields.TextField', [], {'null': 'True'}), | ||
| u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}), | ||
| 'job_number': ('django.db.models.fields.PositiveIntegerField', [], {'null': 'True'}), | ||
| 'raw_data': ('django.db.models.fields.TextField', [], {'null': 'True'}), | ||
| 'succeeded': ('django.db.models.fields.BooleanField', [], {'default': 'False'}), | ||
| 'time': ('django.db.models.fields.DateTimeField', [], {'db_index': 'True'}), | ||
| 'time_complete': ('django.db.models.fields.DateTimeField', [], {'null': 'True', 'db_index': 'True'}) | ||
| }, | ||
| u'cabotapp.userprofile': { | ||
| 'Meta': {'object_name': 'UserProfile'}, | ||
| 'fallback_alert_user': ('django.db.models.fields.BooleanField', [], {'default': 'False'}), | ||
| 'hipchat_alias': ('django.db.models.fields.CharField', [], {'default': "''", 'max_length': '50', 'blank': 'True'}), | ||
| u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}), | ||
| 'mobile_number': ('django.db.models.fields.CharField', [], {'default': "''", 'max_length': '20', 'blank': 'True'}), | ||
| 'user': ('django.db.models.fields.related.OneToOneField', [], {'related_name': "'profile'", 'unique': 'True', 'to': u"orm['auth.User']"}) | ||
| }, | ||
| u'contenttypes.contenttype': { | ||
| 'Meta': {'ordering': "('name',)", 'unique_together': "(('app_label', 'model'),)", 'object_name': 'ContentType', 'db_table': "'django_content_type'"}, | ||
| 'app_label': ('django.db.models.fields.CharField', [], {'max_length': '100'}), | ||
| u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}), | ||
| 'model': ('django.db.models.fields.CharField', [], {'max_length': '100'}), | ||
| 'name': ('django.db.models.fields.CharField', [], {'max_length': '100'}) | ||
| } | ||
| } | ||
|
|
||
| complete_apps = ['cabotapp'] |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters