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2 Databases and brokers

1. MySQL : prometheus

  1. MySQL down
  2. MySQL too many connections (> 80%)
  3. MySQL high threads running
  4. MySQL Slave IO thread not running
  5. MySQL Slave SQL thread not running
  6. MySQL Slave replication lag
  7. MySQL slow queries
  8. MySQL InnoDB log waits
  9. MySQL restarted

2. PostgreSQL

  1. PostgreSQL down
  2. Postgresql restarted
  3. Postgresql exporter error
  4. Replication lag
  5. Table not vaccumed
  6. Table not analyzed
  7. Too many connections
  8. Not enough connections
  9. Dead locks
  10. High rollback rate
  11. Postgresql commit rate low
  12. Postgresql low XID consumption
  13. Postgresql high rate statement timeout
  14. Postgresql high rate deadlock
  15. Postgresql unused replication slot
  16. Postgresql too many dead tuples
  17. Postgresql split brain
  18. Postgresql promoted node
  19. Postgresql configuration changed
  20. Postgresql SSL compression active
  21. Postgresql too many locks acquired
  22. Slow queries

3. SQL Server

  1. SQL Server down

4 PGBouncer

  1. PGBouncer active connections
  2. PGBouncer errors
  3. PGBouncer max connections

5 Redis

  1. Redis down
  2. Redis missing master
  3. Redis too many masters
  4. Redis disconnected slaves
  5. Redis replication broken
  6. Redis cluster flapping
  7. Missing backup
  8. Redis out of system memory
  9. Redis out of configured maxmemory
  10. Too many connections
  11. Not enough connections
  12. Rejected connections

6 MongoDB

percona/mongodb_exporter

  1. MongoDB Down
  2. MongoDB replication lag
  3. MongoDB replication headroom
  4. MongoDB number cursors open
  5. MongoDB cursors timeouts
  6. MongoDB too many connections
  7. MongoDB virtual memory usage

dcu/mongodb_exporter

  1. Mongodb replication lag is more than 10s
  2. MongoDB replication Status 3
  3. MongoDB replication Status 6
  4. MongoDB replication Status 8
  5. MongoDB replication Status 9
  6. MongoDB replication Status 10
  7. MongoDB number cursors open
  8. MongoDB cursors timeouts
  9. MongoDB too many connections
  10. MongoDB virtual memory usage

7 RabbitMQ

rabbitmq/rabbitmq-prometheus

  1. Rabbitmq node down
  2. Rabbitmq node not distributed
  3. Rabbitmq instances different versions
  4. Rabbitmq memory high
  5. Rabbitmq file descriptors usage
  6. Rabbitmq too many unack messages
  7. Rabbitmq too many connections
  8. Rabbitmq no queue consumer
  9. Rabbitmq unroutable messages

kbudde/rabbitmq-exporter

  1. Rabbitmq node down
  2. Rabbitmq Cluster down
  3. Rabbitmq cluster partition
  4. Rabbitmq out of memory
  5. Too many connections
  6. Dead letter queue filling up
  7. Too many messages in queue
  8. Rabbitmq Slow queue consuming
  9. No consumer
  10. Too many consumers
  11. Unactive exchange

8 Elasticsearch

  1. Elastic Heap Usage Too High
  2. Elastic Heap Usage warning
  3. Elasticsearch disk out of space
  4. Elasticsearch disk space low
  5. Elastic Cluster Red
  6. Elastic Cluster Yellow
  7. Elasticsearch Healthy Nodes
  8. Number of Elastic Healthy Nodes
  9. Elasticsearch relocating shards
  10. Elasticsearch relocating shards too long
  11. Elasticsearch initializing shards
  12. Elasticsearch initializing shards too long
  13. Elasticsearch unassigned shards
  14. Elasticsearch pending tasks
  15. Elasticsearch no new documents
  16. Number of pending tasks
  17. Number of Elastic Healthy Data Nodes

9.Cassandra

instaclustr/cassandra_exporter

  1. Cassandra Node is unavailable
  2. Cassandra many compaction tasks are pending
  3. Cassandra commitlog pending tasks
  4. Cassandra compaction executor blocked tasks
  5. Cassandra flush writer blocked tasks
  6. Cassandra connection timeouts total
  7. Cassandra storage exceptions
  8. Cassandra tombstone dump
  9. Cassandra client request unvailable write
  10. Cassandra client request unvailable read
  11. Cassandra client request write failure
  12. Cassandra client request read failure

criteo/cassandra_exporter

  1. Cassandra hints count
  2. Cassandra compaction task pending
  3. Cassandra viewwrite latency
  4. Cassandra bad hacker
  5. Cassandra node down
  6. Cassandra commitlog pending tasks
  7. Cassandra compaction executor blocked tasks
  8. Cassandra flush writer blocked tasks
  9. Cassandra repair pending tasks
  10. Cassandra repair blocked tasks
  11. Cassandra connection timeouts total
  12. Cassandra storage exceptions
  13. Cassandra tombstone dump
  14. Cassandra client request unvailable write
  15. Cassandra client request unvailable read
  16. Cassandra client request write failure
  17. Cassandra client request read failure
  18. Cassandra cache hit rate key cache

10 Kafka

danielqsj/kafka_exporter

  1. Kafka Topics
  2. Kafka consumers group

linkedin/Burrow

  1. Kafka topic offset decreased
  2. Kafka consumer lag

11 Zookeeper

  1. Zookeeper Down
  2. Zookeeper missing leader
  3. Zookeeper Too Many Leaders
  4. Zookeeper Not Ok

12 Solr

  1. Solr update errors
  2. Solr query errors
  3. Solr replication errors
  4. Solr low live node count