CloudWatchMetrics: Writes metrics to CloudWatch.

Beware metric costs, at 0.50$ per metric you want to make sure you're using match filters to only send what you really want to pay for.


--

AmqpGraphite collectd perl plugin: Writes to AMQP with metrics in graphite format.

--

AmqpJson collectd perl plugin: Writes to AMQP with metrics in json format.

--

AmqpJsonUdp collectd perl plugin: Writes to AMQP with metrics in json format. Uses the UDP-exchange to bypass all the AMQP overhead and makes sending metrics fire-and-forget.

--

CPUSUmmary perl plugin: A CPU summary plugin that takes into account number of CPUs to give a percentage utilization for each metric

--

HTTPCheck perl plugin: An http check that can either use a simple regular expression match or can parse a json document and compare a key to an expected value.

---

RabbitMQ

A module to monitor RabbitMQ AMQP broker message queues and message rates. The following metrics are pulled on a per-vhost/queue basis
 - messages
 - messages_rate
 - messages_unacknolwedged
 - messages_unacknolwedged_rate
 - messages_ready
 - message_ready_rate
 - memory
 - consumers
 - publish
 - publish_rate
 - deliver_no_ack
 - deliver_no_ack_rate
 - deliver_get
 - deliver_get_rate

Refer to the RabbitMQ documentation for details on the meanings of these metrics.

You'll need to add a new type to the collectd types db (/usr/share/collectd/types.db). The types.db.sample contains the relevant information to add. A quick way to do this is to do 
  cat types.db.sample >>/usr/share/collectd/types.db

---

Riak

This plugin gathers statistics from the /stats REST endpoint. See the Riak documentation for the meanings of these variables. (http://docs.basho.com/riak/latest/cookbooks/Statistics-and-Monitoring/)


--

MySQL


In your collectd config:

    <LoadPlugin "perl">
       Globals true
    </LoadPlugin>
    
    <Plugin "perl">
      BaseName "Collectd::Plugins"
      LoadPlugin "MySQL"
      
      <Plugin "MySQL">
        <Database db_a>
          Host "localhost"
          Port "3306"
          User "root"
          Pass "mypass"
        </Database>
        <Database db_b>
          Socket "/var/mysql/mysql.sock"
          User "root"
          Pass "mypass"
        </Database>
      </Plugin>
    </Plugin>

This plugin gathers about 500 metrics from the MySQL server. Specifically the following variables are gathered:

Server status:

    aborted_clients aborted_connects binlog_cache_disk_use binlog_cache_use binlog_commits binlog_group_commits binlog_stmt_cache_disk_use binlog_stmt_cache_use bytes_received bytes_sent 
    com_admin_commands com_alter_db com_alter_db_upgrade com_alter_event com_alter_function com_alter_procedure com_alter_server com_alter_table com_alter_tablespace com_analyze com_assign_to_keycache 
    com_begin com_binlog com_call_procedure com_change_db com_change_master com_check com_checksum com_commit com_create_db com_create_event com_create_function com_create_index com_create_procedure 
    com_create_server com_create_table com_create_trigger com_create_udf com_create_user com_create_view com_dealloc_sql com_delete com_delete_multi com_do com_drop_db com_drop_event com_drop_function 
    com_drop_index com_drop_procedure com_drop_server com_drop_table com_drop_trigger com_drop_user com_drop_view com_empty_query com_execute_sql com_flush com_grant com_ha_close com_ha_open com_ha_read 
    com_help com_insert com_insert_select com_install_plugin com_kill com_load com_lock_tables com_optimize com_preload_keys com_prepare_sql com_purge com_purge_before_date com_release_savepoint 
    com_rename_table com_rename_user com_repair com_replace com_replace_select com_reset com_resignal com_revoke com_revoke_all com_rollback com_rollback_to_savepoint com_savepoint com_select com_set_option 
    com_show_authors com_show_binlog_events com_show_binlogs com_show_charsets com_show_client_statistics com_show_collations com_show_contributors com_show_create_db com_show_create_event 
    com_show_create_func com_show_create_proc com_show_create_table com_show_create_trigger com_show_databases com_show_engine_logs com_show_engine_mutex com_show_engine_status com_show_errors 
    com_show_events com_show_fields com_show_function_status com_show_grants com_show_index_statistics com_show_keys com_show_master_status com_show_open_tables com_show_plugins com_show_privileges 
    com_show_procedure_status com_show_processlist com_show_profile com_show_profiles com_show_relaylog_events com_show_slave_hosts com_show_slave_status com_show_slave_status_nolock com_show_status 
    com_show_storage_engines com_show_table_statistics com_show_table_status com_show_tables com_show_temporary_tables com_show_thread_statistics com_show_triggers com_show_user_statistics 
    com_show_variables com_show_warnings com_signal com_slave_start com_slave_stop com_stmt_close com_stmt_execute com_stmt_fetch com_stmt_prepare com_stmt_reprepare com_stmt_reset com_stmt_send_long_data 
    com_truncate com_uninstall_plugin com_unlock_tables com_update com_update_multi com_xa_commit com_xa_end com_xa_prepare com_xa_recover com_xa_rollback com_xa_start compression connections 
    created_tmp_disk_tables created_tmp_files created_tmp_tables delayed_errors delayed_insert_threads delayed_writes flashcache_enabled flush_commands handler_commit handler_delete handler_discover 
    handler_prepare handler_read_first handler_read_key handler_read_last handler_read_next handler_read_prev handler_read_rnd handler_read_rnd_next handler_rollback handler_savepoint 
    handler_savepoint_rollback handler_update handler_write innodb_adaptive_hash_cells innodb_adaptive_hash_hash_searches innodb_adaptive_hash_heap_buffers innodb_adaptive_hash_non_hash_searches 
    innodb_background_log_sync innodb_buffer_pool_pages_lru_flushed innodb_buffer_pool_pages_data innodb_buffer_pool_pages_dirty innodb_buffer_pool_pages_flushed innodb_buffer_pool_pages_free 
    innodb_buffer_pool_pages_made_not_young innodb_buffer_pool_pages_made_young innodb_buffer_pool_pages_misc innodb_buffer_pool_pages_old innodb_buffer_pool_pages_total innodb_buffer_pool_read_ahead 
    innodb_buffer_pool_read_ahead_evicted innodb_buffer_pool_read_ahead_rnd innodb_buffer_pool_read_requests innodb_buffer_pool_reads innodb_buffer_pool_wait_free innodb_buffer_pool_write_requests 
    innodb_checkpoint_age innodb_checkpoint_max_age innodb_checkpoint_target_age innodb_current_row_locks innodb_data_fsyncs innodb_data_pending_fsyncs innodb_data_pending_reads innodb_data_pending_writes 
    innodb_data_read innodb_data_reads innodb_data_writes innodb_data_written innodb_dblwr_pages_written innodb_dblwr_writes innodb_deadlocks innodb_dict_tables innodb_have_atomic_builtins 
    innodb_history_list_length innodb_ibuf_discarded_delete_marks innodb_ibuf_discarded_deletes innodb_ibuf_discarded_inserts innodb_ibuf_free_list innodb_ibuf_merged_delete_marks innodb_ibuf_merged_deletes 
    innodb_ibuf_merged_inserts innodb_ibuf_merges innodb_ibuf_segment_size innodb_ibuf_size innodb_log_waits innodb_log_write_requests innodb_log_writes innodb_lsn_current innodb_lsn_flushed 
    innodb_lsn_last_checkpoint innodb_master_thread_10_second_loops innodb_master_thread_1_second_loops innodb_master_thread_background_loops innodb_master_thread_main_flush_loops 
    innodb_master_thread_sleeps innodb_max_trx_id innodb_mem_adaptive_hash innodb_mem_dictionary innodb_mem_total innodb_mutex_os_waits innodb_mutex_spin_rounds innodb_mutex_spin_waits 
    innodb_oldest_view_low_limit_trx_id innodb_os_log_fsyncs innodb_os_log_pending_fsyncs innodb_os_log_pending_writes innodb_os_log_written innodb_page_size innodb_pages_created innodb_pages_read 
    innodb_pages_written innodb_purge_trx_id innodb_purge_undo_no innodb_row_lock_current_waits innodb_row_lock_time innodb_row_lock_time_avg innodb_row_lock_time_max innodb_row_lock_waits 
    innodb_rows_deleted innodb_rows_inserted innodb_rows_read innodb_rows_updated innodb_s_lock_os_waits innodb_s_lock_spin_rounds innodb_s_lock_spin_waits innodb_truncated_status_writes 
    innodb_x_lock_os_waits innodb_x_lock_spin_rounds innodb_x_lock_spin_waits key_blocks_not_flushed key_blocks_unused key_blocks_used key_read_requests key_reads key_write_requests key_writes 
    last_query_cost max_used_connections not_flushed_delayed_rows open_files open_streams open_table_definitions open_tables opened_files opened_table_definitions opened_tables 
    performance_schema_cond_classes_lost performance_schema_cond_instances_lost performance_schema_file_classes_lost performance_schema_file_handles_lost performance_schema_file_instances_lost 
    performance_schema_locker_lost performance_schema_mutex_classes_lost performance_schema_mutex_instances_lost performance_schema_rwlock_classes_lost performance_schema_rwlock_instances_lost 
    performance_schema_table_handles_lost performance_schema_table_instances_lost performance_schema_thread_classes_lost performance_schema_thread_instances_lost prepared_stmt_count qcache_free_blocks 
    qcache_free_memory qcache_hits qcache_inserts qcache_lowmem_prunes qcache_not_cached qcache_queries_in_cache qcache_total_blocks queries questions rpl_status select_full_join select_full_range_join 
    select_range select_range_check select_scan slave_heartbeat_period slave_open_temp_tables slave_received_heartbeats slave_retried_transactions slave_running slow_launch_threads slow_queries 
    sort_merge_passes sort_range sort_rows sort_scan ssl_accept_renegotiates ssl_accepts ssl_callback_cache_hits ssl_cipher ssl_cipher_list ssl_client_connects ssl_connect_renegotiates ssl_ctx_verify_depth 
    ssl_ctx_verify_mode ssl_default_timeout ssl_finished_accepts ssl_finished_connects ssl_session_cache_hits ssl_session_cache_misses ssl_session_cache_mode ssl_session_cache_overflows 
    ssl_session_cache_size ssl_session_cache_timeouts ssl_sessions_reused ssl_used_session_cache_entries ssl_verify_depth ssl_verify_mode ssl_version table_locks_immediate table_locks_waited 
    tc_log_max_pages_used tc_log_page_size tc_log_page_waits threads_cached threads_connected threads_created threads_running uptime uptime_since_flush_status
    wsrep_*

Slave status:

    exec_master_log_pos read_master_log_pos seconds_behind_master slave_io_running slave_sql_running


InnoDB status:

    add_pool_alloc awe_mem_alloc buf_free buf_pool_hit_rate buf_pool_hits buf_pool_reads buf_pool_size dict_mem_alloc page_creates_sec page_reads_sec page_writes_sec pages_created pages_modified 
    pages_read pages_total pages_written reads_pending total_mem_alloc writes_pending writes_pending_flush_list writes_pending_lru writes_pending_single_page
    bufs_in_node_heap free_list_len hash_searches_s hash_table_size inserts merged_recs merges non_hash_searches_s seg_size size used_cells
    avg_bytes_s flush_type fsyncs_s os_file_reads os_file_writes os_fsyncs pending_aio_writes pending_buffer_pool_flushes pending_ibuf_aio_reads pending_log_flushes pending_log_ios 
    pending_normal_aio_reads pending_preads pending_pwrites pending_sync_ios reads_s writes_s
    last_chkp log_flushed_to log_ios_done log_ios_s log_seq_no pending_chkp_writes pending_log_writes
    del_sec ins_sec n_reserved_extents num_rows_del num_rows_ins num_rows_read num_rows_upd queries_in_queue queries_inside read_sec read_views_open upd_sec
    mutex_os_waits mutex_spin_rounds mutex_spin_waits reservation_count rw_excl_os_waits rw_excl_spins rw_shared_os_waits rw_shared_spins signal_count wait_array_size

Process states:

  after_create analyzing checking_permissions checking_table cleaning_up closing_tables converting_heap_to_myisam copy_to_tmp_table copying_to_tmp_table_on_disk creating_index creating_sort_index
  copying_to_group_table creating_table creating_tmp_table deleting_from_main_table deleting_from_reference_table discard_or_import_tablespace end executing execution_of_init_command freeing_items
  flushing_tables fulltext_initiialization init killed locked logging_slow_query null manage_keys opening_table optimizing preparing purging_old_relay_logs query_end reading_from_net removing_duplicates
  removing_tmp_table rename rename_result_table reopen_tables repair_by_sorting repair_done repair_with_keycache rolling_back saving_state searching_rows_for_update sending_data setup sorting_for_group
  sorting_for_order sorting_index sorting_result statistics system_lock updating updating_main_table updating_reference_tables user_lock user_sleep waiting_for_table waiting_on_cond writing_to_net

Reading InnoDB data from the status file is supported and will kick in automatically if the server 
supports it. See this URL for turning it on:
http://dev.mysql.com/doc/refman/5.1/en/innodb-parameters.html#option_mysqld_innodb-status-file

DiskStats