diff options
Diffstat (limited to 'python.d/README.md')
| -rw-r--r-- | python.d/README.md | 2363 |
1 files changed, 0 insertions, 2363 deletions
diff --git a/python.d/README.md b/python.d/README.md deleted file mode 100644 index faabba2c..00000000 --- a/python.d/README.md +++ /dev/null @@ -1,2363 +0,0 @@ -# Disclaimer - -Every module should be compatible with python2 and python3. -All third party libraries should be installed system-wide or in `python_modules` directory. -Module configurations are written in YAML and **pyYAML is required**. - -Every configuration file must have one of two formats: - -- Configuration for only one job: - -```yaml -update_every : 2 # update frequency -retries : 1 # how many failures in update() is tolerated -priority : 20000 # where it is shown on dashboard - -other_var1 : bla # variables passed to module -other_var2 : alb -``` - -- Configuration for many jobs (ex. mysql): - -```yaml -# module defaults: -update_every : 2 -retries : 1 -priority : 20000 - -local: # job name - update_every : 5 # job update frequency - other_var1 : some_val # module specific variable - -other_job: - priority : 5 # job position on dashboard - retries : 20 # job retries - other_var2 : val # module specific variable -``` - -`update_every`, `retries`, and `priority` are always optional. - ---- - -The following python.d modules are supported: - -# apache - -This module will monitor one or more apache servers depending on configuration. - -**Requirements:** - * apache with enabled `mod_status` - -It produces the following charts: - -1. **Requests** in requests/s - * requests - -2. **Connections** - * connections - -3. **Async Connections** - * keepalive - * closing - * writing - -4. **Bandwidth** in kilobytes/s - * sent - -5. **Workers** - * idle - * busy - -6. **Lifetime Avg. Requests/s** in requests/s - * requests_sec - -7. **Lifetime Avg. Bandwidth/s** in kilobytes/s - * size_sec - -8. **Lifetime Avg. Response Size** in bytes/request - * size_req - -### configuration - -Needs only `url` to server's `server-status?auto` - -Here is an example for 2 servers: - -```yaml -update_every : 10 -priority : 90100 - -local: - url : 'http://localhost/server-status?auto' - retries : 20 - -remote: - url : 'http://www.apache.org/server-status?auto' - update_every : 5 - retries : 4 -``` - -Without configuration, module attempts to connect to `http://localhost/server-status?auto` - ---- - -# apache_cache - -Module monitors apache mod_cache log and produces only one chart: - -**cached responses** in percent cached - * hit - * miss - * other - -### configuration - -Sample: - -```yaml -update_every : 10 -priority : 120000 -retries : 5 -log_path : '/var/log/apache2/cache.log' -``` - -If no configuration is given, module will attempt to read log file at `/var/log/apache2/cache.log` - ---- - -# beanstalk - -Module provides server and tube level statistics: - -**Requirements:** - * `python-beanstalkc` - * `python-yaml` - -**Server statistics:** - -1. **Cpu usage** in cpu time - * user - * system - -2. **Jobs rate** in jobs/s - * total - * timeouts - -3. **Connections rate** in connections/s - * connections - -4. **Commands rate** in commands/s - * put - * peek - * peek-ready - * peek-delayed - * peek-buried - * reserve - * use - * watch - * ignore - * delete - * release - * bury - * kick - * stats - * stats-job - * stats-tube - * list-tubes - * list-tube-used - * list-tubes-watched - * pause-tube - -5. **Current tubes** in tubes - * tubes - -6. **Current jobs** in jobs - * urgent - * ready - * reserved - * delayed - * buried - -7. **Current connections** in connections - * written - * producers - * workers - * waiting - -8. **Binlog** in records/s - * written - * migrated - -9. **Uptime** in seconds - * uptime - -**Per tube statistics:** - -1. **Jobs rate** in jobs/s - * jobs - -2. **Jobs** in jobs - * using - * ready - * reserved - * delayed - * buried - -3. **Connections** in connections - * using - * waiting - * watching - -4. **Commands** in commands/s - * deletes - * pauses - -5. **Pause** in seconds - * since - * left - - -### configuration - -Sample: - -```yaml -host : '127.0.0.1' -port : 11300 -``` - -If no configuration is given, module will attempt to connect to beanstalkd on `127.0.0.1:11300` address - ---- - -# bind_rndc - -Module parses bind dump file to collect real-time performance metrics - -**Requirements:** - * Version of bind must be 9.6 + - * Netdata must have permissions to run `rndc stats` - -It produces: - -1. **Name server statistics** - * requests - * responses - * success - * auth_answer - * nonauth_answer - * nxrrset - * failure - * nxdomain - * recursion - * duplicate - * rejections - -2. **Incoming queries** - * RESERVED0 - * A - * NS - * CNAME - * SOA - * PTR - * MX - * TXT - * X25 - * AAAA - * SRV - * NAPTR - * A6 - * DS - * RSIG - * DNSKEY - * SPF - * ANY - * DLV - -3. **Outgoing queries** - * Same as Incoming queries - - -### configuration - -Sample: - -```yaml -local: - named_stats_path : '/var/log/bind/named.stats' -``` - -If no configuration is given, module will attempt to read named.stats file at `/var/log/bind/named.stats` - ---- - -# chrony - -This module monitors the precision and statistics of a local chronyd server. - -It produces: - -* frequency -* last offset -* RMS offset -* residual freq -* root delay -* root dispersion -* skew -* system time - -**Requirements:** -Verify that user netdata can execute `chronyc tracking`. If necessary, update `/etc/chrony.conf`, `cmdallow`. - -### Configuration - -Sample: -```yaml -# data collection frequency: -update_every: 1 - -# chrony query command: -local: - command: 'chronyc -n tracking' -``` - ---- - -# ceph - -This module monitors the ceph cluster usage and consuption data of a server. - -It produces: - -* Cluster statistics (usage, available, latency, objects, read/write rate) -* OSD usage -* OSD latency -* Pool usage -* Pool read/write operations -* Pool read/write rate -* number of objects per pool - -**Requirements:** - -- `rados` python module -- Granting read permissions to ceph group from keyring file -```shell -# chmod 640 /etc/ceph/ceph.client.admin.keyring -``` - -### Configuration - -Sample: -```yaml -local: - config_file: '/etc/ceph/ceph.conf' - keyring_file: '/etc/ceph/ceph.client.admin.keyring' -``` - ---- - -# couchdb - -This module monitors vital statistics of a local Apache CouchDB 2.x server, including: - -* Overall server reads/writes -* HTTP traffic breakdown - * Request methods (`GET`, `PUT`, `POST`, etc.) - * Response status codes (`200`, `201`, `4xx`, etc.) -* Active server tasks -* Replication status (CouchDB 2.1 and up only) -* Erlang VM stats -* Optional per-database statistics: sizes, # of docs, # of deleted docs - -### Configuration - -Sample for a local server running on port 5984: -```yaml -local: - user: 'admin' - pass: 'password' - node: 'couchdb@127.0.0.1' -``` - -Be sure to specify a correct admin-level username and password. - -You may also need to change the `node` name; this should match the value of `-name NODENAME` in your CouchDB's `etc/vm.args` file. Typically this is of the form `couchdb@fully.qualified.domain.name` in a cluster, or `couchdb@127.0.0.1` / `couchdb@localhost` for a single-node server. - -If you want per-database statistics, these need to be added to the configuration, separated by spaces: -```yaml -local: - ... - databases: 'db1 db2 db3 ...' -``` - ---- - -# cpufreq - -This module shows the current CPU frequency as set by the cpufreq kernel -module. - -**Requirement:** -You need to have `CONFIG_CPU_FREQ` and (optionally) `CONFIG_CPU_FREQ_STAT` -enabled in your kernel. - -This module tries to read from one of two possible locations. On -initialization, it tries to read the `time_in_state` files provided by -cpufreq\_stats. If this file does not exist, or doesn't contain valid data, it -falls back to using the more inaccurate `scaling_cur_freq` file (which only -represents the **current** CPU frequency, and doesn't account for any state -changes which happen between updates). - -It produces one chart with multiple lines (one line per core). - -### configuration - -Sample: - -```yaml -sys_dir: "/sys/devices" -``` - -If no configuration is given, module will search for cpufreq files in `/sys/devices` directory. -Directory is also prefixed with `NETDATA_HOST_PREFIX` if specified. - ---- - -# cpuidle - -This module monitors the usage of CPU idle states. - -**Requirement:** -Your kernel needs to have `CONFIG_CPU_IDLE` enabled. - -It produces one stacked chart per CPU, showing the percentage of time spent in -each state. - ---- -# dns_query_time - -This module provides dns query time statistics. - -**Requirement:** -* `python-dnspython` package - -It produces one aggregate chart or one chart per dns server, showing the query time. - ---- - -# dnsdist - -Module monitor dnsdist performance and health metrics. - -Following charts are drawn: - -1. **Response latency** - * latency-slow - * latency100-1000 - * latency50-100 - * latency10-50 - * latency1-10 - * latency0-1 - -2. **Cache performance** - * cache-hits - * cache-misses - -3. **ACL events** - * acl-drops - * rule-drop - * rule-nxdomain - * rule-refused - -4. **Noncompliant data** - * empty-queries - * no-policy - * noncompliant-queries - * noncompliant-responses - -5. **Queries** - * queries - * rdqueries - * rdqueries - -6. **Health** - * downstream-send-errors - * downstream-timeouts - * servfail-responses - * trunc-failures - -### configuration - -```yaml -localhost: - name : 'local' - url : 'http://127.0.0.1:5053/jsonstat?command=stats' - user : 'username' - pass : 'password' - header: - X-API-Key: 'dnsdist-api-key' -``` - -# dovecot - -This module provides statistics information from dovecot server. -Statistics are taken from dovecot socket by executing `EXPORT global` command. -More information about dovecot stats can be found on [project wiki page.](http://wiki2.dovecot.org/Statistics) - -**Requirement:** -Dovecot unix socket with R/W permissions for user netdata or dovecot with configured TCP/IP socket. - -Module gives information with following charts: - -1. **sessions** - * active sessions - -2. **logins** - * logins - -3. **commands** - number of IMAP commands - * commands - -4. **Faults** - * minor - * major - -5. **Context Switches** - * volountary - * involountary - -6. **disk** in bytes/s - * read - * write - -7. **bytes** in bytes/s - * read - * write - -8. **number of syscalls** in syscalls/s - * read - * write - -9. **lookups** - number of lookups per second - * path - * attr - -10. **hits** - number of cache hits - * hits - -11. **attempts** - authorization attemts - * success - * failure - -12. **cache** - cached authorization hits - * hit - * miss - -### configuration - -Sample: - -```yaml -localtcpip: - name : 'local' - host : '127.0.0.1' - port : 24242 - -localsocket: - name : 'local' - socket : '/var/run/dovecot/stats' -``` - -If no configuration is given, module will attempt to connect to dovecot using unix socket localized in `/var/run/dovecot/stats` - ---- - -# elasticsearch - -Module monitor elasticsearch performance and health metrics - -It produces: - -1. **Search performance** charts: - * Number of queries, fetches - * Time spent on queries, fetches - * Query and fetch latency - -2. **Indexing performance** charts: - * Number of documents indexed, index refreshes, flushes - * Time spent on indexing, refreshing, flushing - * Indexing and flushing latency - -3. **Memory usage and garbace collection** charts: - * JVM heap currently in use, commited - * Count of garbage collections - * Time spent on garbage collections - -4. **Host metrics** charts: - * Available file descriptors in percent - * Opened HTTP connections - * Cluster communication transport metrics - -5. **Queues and rejections** charts: - * Number of queued/rejected threads in thread pool - -6. **Fielddata cache** charts: - * Fielddata cache size - * Fielddata evictions and circuit breaker tripped count - -7. **Cluster health API** charts: - * Cluster status - * Nodes and tasks statistics - * Shards statistics - -8. **Cluster stats API** charts: - * Nodes statistics - * Query cache statistics - * Docs statistics - * Store statistics - * Indices and shards statistics - -### configuration - -Sample: - -```yaml -local: - host : 'ipaddress' # Server ip address or hostname - port : 'password' # Port on which elasticsearch listed - cluster_health : True/False # Calls to cluster health elasticsearch API. Enabled by default. - cluster_stats : True/False # Calls to cluster stats elasticsearch API. Enabled by default. -``` - -If no configuration is given, module will fail to run. - ---- - -# exim - -Simple module executing `exim -bpc` to grab exim queue. -This command can take a lot of time to finish its execution thus it is not recommended to run it every second. - -It produces only one chart: - -1. **Exim Queue Emails** - * emails - -Configuration is not needed. - ---- - -# fail2ban - -Module monitor fail2ban log file to show all bans for all active jails - -**Requirements:** - * fail2ban.log file MUST BE readable by netdata (A good idea is to add **create 0640 root netdata** to fail2ban conf at logrotate.d) - -It produces one chart with multiple lines (one line per jail) - -### configuration - -Sample: - -```yaml -local: - log_path: '/var/log/fail2ban.log' - conf_path: '/etc/fail2ban/jail.local' - exclude: 'dropbear apache' -``` -If no configuration is given, module will attempt to read log file at `/var/log/fail2ban.log` and conf file at `/etc/fail2ban/jail.local`. -If conf file is not found default jail is `ssh`. - ---- - -# freeradius - -Uses the `radclient` command to provide freeradius statistics. It is not recommended to run it every second. - -It produces: - -1. **Authentication counters:** - * access-accepts - * access-rejects - * auth-dropped-requests - * auth-duplicate-requests - * auth-invalid-requests - * auth-malformed-requests - * auth-unknown-types - -2. **Accounting counters:** [optional] - * accounting-requests - * accounting-responses - * acct-dropped-requests - * acct-duplicate-requests - * acct-invalid-requests - * acct-malformed-requests - * acct-unknown-types - -3. **Proxy authentication counters:** [optional] - * proxy-access-accepts - * proxy-access-rejects - * proxy-auth-dropped-requests - * proxy-auth-duplicate-requests - * proxy-auth-invalid-requests - * proxy-auth-malformed-requests - * proxy-auth-unknown-types - -4. **Proxy accounting counters:** [optional] - * proxy-accounting-requests - * proxy-accounting-responses - * proxy-acct-dropped-requests - * proxy-acct-duplicate-requests - * proxy-acct-invalid-requests - * proxy-acct-malformed-requests - * proxy-acct-unknown-typesa - - -### configuration - -Sample: - -```yaml -local: - host : 'localhost' - port : '18121' - secret : 'adminsecret' - acct : False # Freeradius accounting statistics. - proxy_auth : False # Freeradius proxy authentication statistics. - proxy_acct : False # Freeradius proxy accounting statistics. -``` - -**Freeradius server configuration:** - -The configuration for the status server is automatically created in the sites-available directory. -By default, server is enabled and can be queried from every client. -FreeRADIUS will only respond to status-server messages, if the status-server virtual server has been enabled. - -To do this, create a link from the sites-enabled directory to the status file in the sites-available directory: - * cd sites-enabled - * ln -s ../sites-available/status status - -and restart/reload your FREERADIUS server. - ---- - -# go_expvar - ---- - -The `go_expvar` module can monitor any Go application that exposes its metrics with the use of `expvar` package from the Go standard library. - -`go_expvar` produces charts for Go runtime memory statistics and optionally any number of custom charts. Please see the [wiki page](https://github.com/firehol/netdata/wiki/Monitoring-Go-Applications) for more info. - -For the memory statistics, it produces the following charts: - -1. **Heap allocations** in kB - * alloc: size of objects allocated on the heap - * inuse: size of allocated heap spans - -2. **Stack allocations** in kB - * inuse: size of allocated stack spans - -3. **MSpan allocations** in kB - * inuse: size of allocated mspan structures - -4. **MCache allocations** in kB - * inuse: size of allocated mcache structures - -5. **Virtual memory** in kB - * sys: size of reserved virtual address space - -6. **Live objects** - * live: number of live objects in memory - -7. **GC pauses average** in ns - * avg: average duration of all GC stop-the-world pauses - -### configuration - -Please see the [wiki page](https://github.com/firehol/netdata/wiki/Monitoring-Go-Applications#using-netdata-go_expvar-module) for detailed info about module configuration. - ---- - -# haproxy - -Module monitors frontend and backend metrics such as bytes in, bytes out, sessions current, sessions in queue current. -And health metrics such as backend servers status (server check should be used). - -Plugin can obtain data from url **OR** unix socket. - -**Requirement:** -Socket MUST be readable AND writable by netdata user. - -It produces: - -1. **Frontend** family charts - * Kilobytes in/s - * Kilobytes out/s - * Sessions current - * Sessions in queue current - -2. **Backend** family charts - * Kilobytes in/s - * Kilobytes out/s - * Sessions current - * Sessions in queue current - -3. **Health** chart - * number of failed servers for every backend (in DOWN state) - - -### configuration - -Sample: - -```yaml -via_url: - user : 'username' # ONLY IF stats auth is used - pass : 'password' # # ONLY IF stats auth is used - url : 'http://ip.address:port/url;csv;norefresh' -``` - -OR - -```yaml -via_socket: - socket : 'path/to/haproxy/sock' -``` - -If no configuration is given, module will fail to run. - ---- - -# hddtemp - -Module monitors disk temperatures from one or more hddtemp daemons. - -**Requirement:** -Running `hddtemp` in daemonized mode with access on tcp port - -It produces one chart **Temperature** with dynamic number of dimensions (one per disk) - -### configuration - -Sample: - -```yaml -update_every: 3 -host: "127.0.0.1" -port: 7634 -``` - -If no configuration is given, module will attempt to connect to hddtemp daemon on `127.0.0.1:7634` address - ---- - -# httpcheck - -Module monitors remote http server for availability and response time. - -Following charts are drawn per job: - -1. **Response time** ms - * Time in 0.1 ms resolution in which the server responds. - If the connection failed, the value is missing. - -2. **Status** boolean - * Connection successful - * Unexpected content: No Regex match found in the response - * Unexpected status code: Do we get 500 errors? - * Connection failed: port not listening or blocked - * Connection timed out: host or port unreachable - -### configuration - -Sample configuration and their default values. - -```yaml -server: - url: 'http://host:port/path' # required - status_accepted: # optional - - 200 - timeout: 1 # optional, supports decimals (e.g. 0.2) - update_every: 3 # optional - regex: 'REGULAR_EXPRESSION' # optional, see https://docs.python.org/3/howto/regex.html - redirect: yes # optional -``` - -### notes - - * The status chart is primarily intended for alarms, badges or for access via API. - * A system/service/firewall might block netdata's access if a portscan or - similar is detected. - * This plugin is meant for simple use cases. Currently, the accuracy of the - response time is low and should be used as reference only. - ---- - -# icecast - -This module will monitor number of listeners for active sources. - -**Requirements:** - * icecast version >= 2.4.0 - -It produces the following charts: - -1. **Listeners** in listeners - * source number - -### configuration - -Needs only `url` to server's `/status-json.xsl` - -Here is an example for remote server: - -```yaml -remote: - url : 'http://1.2.3.4:8443/status-json.xsl' -``` - -Without configuration, module attempts to connect to `http://localhost:8443/status-json.xsl` - ---- - -# IPFS - -Module monitors [IPFS](https://ipfs.io) basic information. - -1. **Bandwidth** in kbits/s - * in - * out - -2. **Peers** - * peers - -### configuration - -Only url to IPFS server is needed. - -Sample: - -```yaml -localhost: - name : 'local' - url : 'http://localhost:5001' -``` - ---- - -# isc_dhcpd - -Module monitor leases database to show all active leases for given pools. - -**Requirements:** - * dhcpd leases file MUST BE readable by netdata - * pools MUST BE in CIDR format - -It produces: - -1. **Pools utilization** Aggregate chart for all pools. - * utilization in percent - -2. **Total leases** - * leases (overall number of leases for all pools) - -3. **Active leases** for every pools - * leases (number of active leases in pool) - - -### configuration - -Sample: - -```yaml -local: - leases_path : '/var/lib/dhcp/dhcpd.leases' - pools : '192.168.3.0/24 192.168.4.0/24 192.168.5.0/24' -``` - -In case of python2 you need to install `py2-ipaddress` to make plugin work. -The module will not work If no configuration is given. - ---- - - -# mdstat - -Module monitor /proc/mdstat - -It produces: - -1. **Health** Number of failed disks in every array (aggregate chart). - -2. **Disks stats** - * total (number of devices array ideally would have) - * inuse (number of devices currently are in use) - -3. **Current status** - * resync in percent - * recovery in percent - * reshape in percent - * check in percent - -4. **Operation status** (if resync/recovery/reshape/check is active) - * finish in minutes - * speed in megabytes/s - -### configuration -No configuration is needed. - ---- - -# memcached - -Memcached monitoring module. Data grabbed from [stats interface](https://github.com/memcached/memcached/wiki/Commands#stats). - -1. **Network** in kilobytes/s - * read - * written - -2. **Connections** per second - * current - * rejected - * total - -3. **Items** in cluster - * current - * total - -4. **Evicted and Reclaimed** items - * evicted - * reclaimed - -5. **GET** requests/s - * hits - * misses - -6. **GET rate** rate in requests/s - * rate - -7. **SET rate** rate in requests/s - * rate - -8. **DELETE** requests/s - * hits - * misses - -9. **CAS** requests/s - * hits - * misses - * bad value - -10. **Increment** requests/s - * hits - * misses - -11. **Decrement** requests/s - * hits - * misses - -12. **Touch** requests/s - * hits - * misses - -13. **Touch rate** rate in requests/s - * rate - -### configuration - -Sample: - -```yaml -localtcpip: - name : 'local' - host : '127.0.0.1' - port : 24242 -``` - -If no configuration is given, module will attempt to connect to memcached instance on `127.0.0.1:11211` address. - ---- - -# mongodb - -Module monitor mongodb performance and health metrics - -**Requirements:** - * `python-pymongo` package. - -You need to install it manually. - - -Number of charts depends on mongodb version, storage engine and other features (replication): - -1. **Read requests**: - * query - * getmore (operation the cursor executes to get additional data from query) - -2. **Write requests**: - * insert - * delete - * update - -3. **Active clients**: - * readers (number of clients with read operations in progress or queued) - * writers (number of clients with write operations in progress or queued) - -4. **Journal transactions**: - * commits (count of transactions that have been written to the journal) - -5. **Data written to the journal**: - * volume (volume of data) - -6. **Background flush** (MMAPv1): - * average ms (average time taken by flushes to execute) - * last ms (time taken by the last flush) - -8. **Read tickets** (WiredTiger): - * in use (number of read tickets in use) - * available (number of available read tickets remaining) - -9. **Write tickets** (WiredTiger): - * in use (number of write tickets in use) - * available (number of available write tickets remaining) - -10. **Cursors**: - * opened (number of cursors currently opened by MongoDB for clients) - * timedOut (number of cursors that have timed) - * noTimeout (number of open cursors with timeout disabled) - -11. **Connections**: - * connected (number of clients currently connected to the database server) - * unused (number of unused connections available for new clients) - -12. **Memory usage metrics**: - * virtual - * resident (amount of memory used by the database process) - * mapped - * non mapped - -13. **Page faults**: - * page faults (number of times MongoDB had to request from disk) - -14. **Cache metrics** (WiredTiger): - * percentage of bytes currently in the cache (amount of space taken by cached data) - * percantage of tracked dirty bytes in the cache (amount of space taken by dirty data) - -15. **Pages evicted from cache** (WiredTiger): - * modified - * unmodified - -16. **Queued requests**: - * readers (number of read request currently queued) - * writers (number of write request currently queued) - -17. **Errors**: - * msg (number of message assertions raised) - * warning (number of warning assertions raised) - * regular (number of regular assertions raised) - * user (number of assertions corresponding to errors generated by users) - -18. **Storage metrics** (one chart for every database) - * dataSize (size of all documents + padding in the database) - * indexSize (size of all indexes in the database) - * storageSize (size of all extents in the database) - -19. **Documents in the database** (one chart for all databases) - * documents (number of objects in the database among all the collections) - -20. **tcmalloc metrics** - * central cache free - * current total thread cache - * pageheap free - * pageheap unmapped - * thread cache free - * transfer cache free - * heap size - -21. **Commands total/failed rate** - * count - * createIndex - * delete - * eval - * findAndModify - * insert - -22. **Locks metrics** (acquireCount metrics - number of times the lock was acquired in the specified mode) - * Global lock - * Database lock - * Collection lock - * Metadata lock - * oplog lock - -23. **Replica set members state** - * state - -24. **Oplog window** - * window (interval of time between the oldest and the latest entries in the oplog) - -25. **Replication lag** - * member (time when last entry from the oplog was applied for every member) - -26. **Replication set member heartbeat latency** - * member (time when last heartbeat was received from replica set member) - - -### configuration - -Sample: - -```yaml -local: - name : 'local' - host : '127.0.0.1' - port : 27017 - user : 'netdata' - pass : 'netdata' - -``` - -If no configuration is given, module will attempt to connect to mongodb daemon on `127.0.0.1:27017` address - ---- - - -# mysql - -Module monitors one or more mysql servers - -**Requirements:** - * python library [MySQLdb](https://github.com/PyMySQL/mysqlclient-python) (faster) or [PyMySQL](https://github.com/PyMySQL/PyMySQL) (slower) - -It will produce following charts (if data is available): - -1. **Bandwidth** in kbps - * in - * out - -2. **Queries** in queries/sec - * queries - * questions - * slow queries - -3. **Operations** in operations/sec - * opened tables - * flush - * commit - * delete - * prepare - * read first - * read key - * read next - * read prev - * read random - * read random next - * rollback - * save point - * update - * write - -4. **Table Locks** in locks/sec - * immediate - * waited - -5. **Select Issues** in issues/sec - * full join - * full range join - * range - * range check - * scan - -6. **Sort Issues** in issues/sec - * merge passes - * range - * scan - -### configuration - -You can provide, per server, the following: - -1. username which have access to database (deafults to 'root') -2. password (defaults to none) -3. mysql my.cnf configuration file -4. mysql socket (optional) -5. mysql host (ip or hostname) -6. mysql port (defaults to 3306) - -Here is an example for 3 servers: - -```yaml -update_every : 10 -priority : 90100 -retries : 5 - -local: - 'my.cnf' : '/etc/mysql/my.cnf' - priority : 90000 - -local_2: - user : 'root' - pass : 'blablablabla' - socket : '/var/run/mysqld/mysqld.sock' - update_every : 1 - -remote: - user : 'admin' - pass : 'bla' - host : 'example.org' - port : 9000 - retries : 20 -``` - -If no configuration is given, module will attempt to connect to mysql server via unix socket at `/var/run/mysqld/mysqld.sock` without password and with username `root` - ---- - -# nginx - -This module will monitor one or more nginx servers depending on configuration. Servers can be either local or remote. - -**Requirements:** - * nginx with configured 'ngx_http_stub_status_module' - * 'location /stub_status' - -Example nginx configuration can be found in 'python.d/nginx.conf' - -It produces following charts: - -1. **Active Connections** - * active - -2. **Requests** in requests/s - * requests - -3. **Active Connections by Status** - * reading - * writing - * waiting - -4. **Connections Rate** in connections/s - * accepts - * handled - -### configuration - -Needs only `url` to server's `stub_status` - -Here is an example for local server: - -```yaml -update_every : 10 -priority : 90100 - -local: - url : 'http://localhost/stub_status' - retries : 10 -``` - -Without configuration, module attempts to connect to `http://localhost/stub_status` - ---- - -# nginx_plus - -This module will monitor one or more nginx_plus servers depending on configuration. -Servers can be either local or remote. - -Example nginx_plus configuration can be found in 'python.d/nginx_plus.conf' - -It produces following charts: - -1. **Requests total** in requests/s - * total - -2. **Requests current** in requests - * current - -3. **Connection Statistics** in connections/s - * accepted - * dropped - -4. **Workers Statistics** in workers - * idle - * active - -5. **SSL Handshakes** in handshakes/s - * successful - * failed - -6. **SSL Session Reuses** in sessions/s - * reused - -7. **SSL Memory Usage** in percent - * usage - -8. **Processes** in processes - * respawned - -For every server zone: - -1. **Processing** in requests - * processing - -2. **Requests** in requests/s - * requests - -3. **Responses** in requests/s - * 1xx - * 2xx - * 3xx - * 4xx - * 5xx - -4. **Traffic** in kilobits/s - * received - * sent - -For every upstream: - -1. **Peers Requests** in requests/s - * peer name (dimension per peer) - -2. **All Peers Responses** in responses/s - * 1xx - * 2xx - * 3xx - * 4xx - * 5xx - -3. **Peer Responses** in requests/s (for every peer) - * 1xx - * 2xx - * 3xx - * 4xx - * 5xx - -4. **Peers Connections** in active - * peer name (dimension per peer) - -5. **Peers Connections Usage** in percent - * peer name (dimension per peer) - -6. **All Peers Traffic** in KB - * received - * sent - -7. **Peer Traffic** in KB/s (for every peer) - * received - * sent - -8. **Peer Timings** in ms (for every peer) - * header - * response - -9. **Memory Usage** in percent - * usage - -10. **Peers Status** in state - * peer name (dimension per peer) - -11. **Peers Total Downtime** in seconds - * peer name (dimension per peer) - -For every cache: - -1. **Traffic** in KB - * served - * written - * bypass - -2. **Memory Usage** in percent - * usage - -### configuration - -Needs only `url` to server's `status` - -Here is an example for local server: - -```yaml -local: - url : 'http://localhost/status' -``` - -Without configuration, module fail to start. - ---- - -# nsd - -Module uses the `nsd-control stats_noreset` command to provide `nsd` statistics. - -**Requirements:** - * Version of `nsd` must be 4.0+ - * Netdata must have permissions to run `nsd-control stats_noreset` - -It produces: - -1. **Queries** - * queries - -2. **Zones** - * master - * slave - -3. **Protocol** - * udp - * udp6 - * tcp - * tcp6 - -4. **Query Type** - * A - * NS - * CNAME - * SOA - * PTR - * HINFO - * MX - * NAPTR - * TXT - * AAAA - * SRV - * ANY - -5. **Transfer** - * NOTIFY - * AXFR - -6. **Return Code** - * NOERROR - * FORMERR - * SERVFAIL - * NXDOMAIN - * NOTIMP - * REFUSED - * YXDOMAIN - - -Configuration is not needed. - ---- - -# ntpd - -Module monitors the system variables of the local `ntpd` daemon (optional incl. variables of the polled peers) using the NTP Control Message Protocol via UDP socket, similar to `ntpq`, the [standard NTP query program](http://doc.ntp.org/current-stable/ntpq.html). - -**Requirements:** - * Version: `NTPv4` - * Local interrogation allowed in `/etc/ntp.conf` (default): - -``` -# Local users may interrogate the ntp server more closely. -restrict 127.0.0.1 -restrict ::1 -``` - -It produces: - -1. system - * offset - * jitter - * frequency - * delay - * dispersion - * stratum - * tc - * precision - -2. peers - * offset - * delay - * dispersion - * jitter - * rootdelay - * rootdispersion - * stratum - * hmode - * pmode - * hpoll - * ppoll - * precision - -**configuration** - -Sample: - -```yaml -update_every: 10 - -host: 'localhost' -port: '123' -show_peers: yes -# hide peers with source address in ranges 127.0.0.0/8 and 192.168.0.0/16 -peer_filter: '(127\..*)|(192\.168\..*)' -# check for new/changed peers every 60 updates -peer_rescan: 60 -``` - -Sample (multiple jobs): - -Note: `ntp.conf` on the host `otherhost` must be configured to allow queries from our local host by including a line like `restrict <IP> nomodify notrap nopeer`. - -```yaml -local: - host: 'localhost' - -otherhost: - host: 'otherhost' -``` - -If no configuration is given, module will attempt to connect to `ntpd` on `::1:123` or `127.0.0.1:123` and show charts for the systemvars. Use `show_peers: yes` to also show the charts for configured peers. Local peers in the range `127.0.0.0/8` are hidden by default, use `peer_filter: ''` to show all peers. - ---- - -# ovpn_status_log - -Module monitor openvpn-status log file. - -**Requirements:** - - * If you are running multiple OpenVPN instances out of the same directory, MAKE SURE TO EDIT DIRECTIVES which create output files - so that multiple instances do not overwrite each other's output files. - - * Make sure NETDATA USER CAN READ openvpn-status.log - - * Update_every interval MUST MATCH interval on which OpenVPN writes operational status to log file. - -It produces: - -1. **Users** OpenVPN active users - * users - -2. **Traffic** OpenVPN overall bandwidth usage in kilobit/s - * in - * out - -### configuration - -Sample: - -```yaml -default - log_path : '/var/log/openvpn-status.log' -``` - ---- - -# phpfpm - -This module will monitor one or more php-fpm instances depending on configuration. - -**Requirements:** - * php-fpm with enabled `status` page - * access to `status` page via web server - -It produces following charts: - -1. **Active Connections** - * active - * maxActive - * idle - -2. **Requests** in requests/s - * requests - -3. **Performance** - * reached - * slow - -### configuration - -Needs only `url` to server's `status` - -Here is an example for local instance: - -```yaml -update_every : 3 -priority : 90100 - -local: - url : 'http://localhost/status' - retries : 10 -``` - -Without configuration, module attempts to connect to `http://localhost/status` - ---- - -# portcheck - -Module monitors a remote TCP service. - -Following charts are drawn per host: - -1. **Latency** ms - * Time required to connect to a TCP port. - Displays latency in 0.1 ms resolution. If the connection failed, the value is missing. - -2. **Status** boolean - * Connection successful - * Could not create socket: possible DNS problems - * Connection refused: port not listening or blocked - * Connection timed out: host or port unreachable - - -### configuration - -```yaml -server: - host: 'dns or ip' # required - port: 22 # required - timeout: 1 # optional - update_every: 1 # optional -``` - -### notes - - * The error chart is intended for alarms, badges or for access via API. - * A system/service/firewall might block netdata's access if a portscan or - similar is detected. - * Currently, the accuracy of the latency is low and should be used as reference only. - ---- - -# postfix - -Simple module executing `postfix -p` to grab postfix queue. - -It produces only two charts: - -1. **Postfix Queue Emails** - * emails - -2. **Postfix Queue Emails Size** in KB - * size - -Configuration is not needed. - ---- - -# postgres - -Module monitors one or more postgres servers. - -**Requirements:** - - * `python-psycopg2` package. You have to install to manually. - -Following charts are drawn: - -1. **Database size** MB - * size - -2. **Current Backend Processes** processes - * active - -3. **Write-Ahead Logging Statistics** files/s - * total - * ready - * done - -4. **Checkpoints** writes/s - * scheduled - * requested - -5. **Current connections to db** count - * connections - -6. **Tuples returned from db** tuples/s - * sequential - * bitmap - -7. **Tuple reads from db** reads/s - * disk - * cache - -8. **Transactions on db** transactions/s - * commited - * rolled back - -9. **Tuples written to db** writes/s - * inserted - * updated - * deleted - * conflicts - -10. **Locks on db** count per type - * locks - -### configuration - -```yaml -socket: - name : 'socket' - user : 'postgres' - database : 'postgres' - -tcp: - name : 'tcp' - user : 'postgres' - database : 'postgres' - host : 'localhost' - port : 5432 -``` - -When no configuration file is found, module tries to connect to TCP/IP socket: `localhost:5432`. - ---- - -# powerdns - -Module monitor powerdns performance and health metrics. - -Following charts are drawn: - -1. **Queries and Answers** - * udp-queries - * udp-answers - * tcp-queries - * tcp-answers - -2. **Cache Usage** - * query-cache-hit - * query-cache-miss - * packetcache-hit - * packetcache-miss - -3. **Cache Size** - * query-cache-size - * packetcache-size - * key-cache-size - * meta-cache-size - -4. **Latency** - * latency - -### configuration - -```yaml -local: - name : 'local' - url : 'http://127.0.0.1:8081/api/v1/servers/localhost/statistics' - header : - X-API-Key: 'change_me' -``` - ---- - -# rabbitmq - -Module monitor rabbitmq performance and health metrics. - -Following charts are drawn: - -1. **Queued Messages** - * ready - * unacknowledged - -2. **Message Rates** - * ack - * redelivered - * deliver - * publish - -3. **Global Counts** - * channels - * consumers - * connections - * queues - * exchanges - -4. **File Descriptors** - * used descriptors - -5. **Socket Descriptors** - * used descriptors - -6. **Erlang processes** - * used processes - -7. **Erlang run queue** - * Erlang run queue - -8. **Memory** - * free memory in megabytes - -9. **Disk Space** - * free disk space in gigabytes - -### configuration - -```yaml -socket: - name : 'local' - host : '127.0.0.1' - port : 15672 - user : 'guest' - pass : 'guest' - -``` - -When no configuration file is found, module tries to connect to: `localhost:15672`. - ---- - -# redis - -Get INFO data from redis instance. - -Following charts are drawn: - -1. **Operations** per second - * operations - -2. **Hit rate** in percent - * rate - -3. **Memory utilization** in kilobytes - * total - * lua - -4. **Database keys** - * lines are creates dynamically based on how many databases are there - -5. **Clients** - * connected - * blocked - -6. **Slaves** - * connected - -### configuration - -```yaml -socket: - name : 'local' - socket : '/var/lib/redis/redis.sock' - -localhost: - name : 'local' - host : 'localhost' - port : 6379 -``` - -When no configuration file is found, module tries to connect to TCP/IP socket: `localhost:6379`. - ---- - -# samba - -Performance metrics of Samba file sharing. - -It produces the following charts: - -1. **Syscall R/Ws** in kilobytes/s - * sendfile - * recvfle - -2. **Smb2 R/Ws** in kilobytes/s - * readout - * writein - * readin - * writeout - -3. **Smb2 Create/Close** in operations/s - * create - * close - -4. **Smb2 Info** in operations/s - * getinfo - * setinfo - -5. **Smb2 Find** in operations/s - * find - -6. **Smb2 Notify** in operations/s - * notify - -7. **Smb2 Lesser Ops** as counters - * tcon - * negprot - * tdis - * cancel - * logoff - * flush - * lock - * keepalive - * break - * sessetup - -### configuration - -Requires that smbd has been compiled with profiling enabled. Also required -that `smbd` was started either with the `-P 1` option or inside `smb.conf` -using `smbd profiling level`. - -This plugin uses `smbstatus -P` which can only be executed by root. It uses -sudo and assumes that it is configured such that the `netdata` user can -execute smbstatus as root without password. - -For example: - - netdata ALL=(ALL) NOPASSWD: /usr/bin/smbstatus -P - -```yaml -update_every : 5 # update frequency -``` - ---- - -# sensors - -System sensors information. - -Charts are created dynamically. - -### configuration - -For detailed configuration information please read [`sensors.conf`](https://github.com/firehol/netdata/blob/master/conf.d/python.d/sensors.conf) file. - -### possible issues - -There have been reports from users that on certain servers, ACPI ring buffer errors are printed by the kernel (`dmesg`) when ACPI sensors are being accessed. -We are tracking such cases in issue [#827](https://github.com/firehol/netdata/issues/827). -Please join this discussion for help. - ---- - -# springboot - -This module will monitor one or more Java Spring-boot applications depending on configuration. - -It produces following charts: - -1. **Response Codes** in requests/s - * 1xx - * 2xx - * 3xx - * 4xx - * 5xx - * others - -2. **Threads** - * daemon - * total - -3. **GC Time** in milliseconds and **GC Operations** in operations/s - * Copy - * MarkSweep - * ... - -4. **Heap Mmeory Usage** in KB - * used - * committed - -### configuration - -Please see the [Monitoring Java Spring Boot Applications](https://github.com/firehol/netdata/wiki/Monitoring-Java-Spring-Boot-Applications) page for detailed info about module configuration. - ---- - -# squid - -This module will monitor one or more squid instances depending on configuration. - -It produces following charts: - -1. **Client Bandwidth** in kilobits/s - * in - * out - * hits - -2. **Client Requests** in requests/s - * requests - * hits - * errors - -3. **Server Bandwidth** in kilobits/s - * in - * out - -4. **Server Requests** in requests/s - * requests - * errors - -### configuration - -```yaml -priority : 50000 - -local: - request : 'cache_object://localhost:3128/counters' - host : 'localhost' - port : 3128 -``` - -Without any configuration module will try to autodetect where squid presents its `counters` data - ---- - -# smartd_log - -Module monitor `smartd` log files to collect HDD/SSD S.M.A.R.T attributes. - -It produces following charts (you can add additional attributes in the module configuration file): - -1. **Read Error Rate** attribute 1 - -2. **Start/Stop Count** attribute 4 - -3. **Reallocated Sectors Count** attribute 5 - -4. **Seek Error Rate** attribute 7 - -5. **Power-On Hours Count** attribute 9 - -6. **Power Cycle Count** attribute 12 - -7. **Load/Unload Cycles** attribute 193 - -8. **Temperature** attribute 194 - -9. **Current Pending Sectors** attribute 197 - -10. **Off-Line Uncorrectable** attribute 198 - -11. **Write Error Rate** attribute 200 - -### configuration - -```yaml -local: - log_path : '/var/log/smartd/' -``` - -If no configuration is given, module will attempt to read log files in /var/log/smartd/ directory. - ---- - -# tomcat - -Present tomcat containers memory utilization. - -Charts: - -1. **Requests** per second - * accesses - -2. **Volume** in KB/s - * volume - -3. **Threads** - * current - * busy - -4. **JVM Free Memory** in MB - * jvm - -### configuration - -```yaml -localhost: - name : 'local' - url : 'http://127.0.0.1:8080/manager/status?XML=true' - user : 'tomcat_username' - pass : 'secret_tomcat_password' -``` - -Without configuration, module attempts to connect to `http://localhost:8080/manager/status?XML=true`, without any credentials. -So it will probably fail. - ---- - -# Traefik - -Module uses the `health` API to provide statistics. - -It produces: - -1. **Responses** by statuses - * success (1xx, 2xx, 304) - * error (5xx) - * redirect (3xx except 304) - * bad (4xx) - * other (all other responses) - -2. **Responses** by codes - * 2xx (successful) - * 5xx (internal server errors) - * 3xx (redirect) - * 4xx (bad) - * 1xx (informational) - * other (non-standart responses) - -3. **Detailed Response Codes** requests/s (number of responses for each response code family individually) - -4. **Requests**/s - * request statistics - -5. **Total response time** - * sum of all response time - -6. **Average response time** - -7. **Average response time per iteration** - -8. **Uptime** - * Traefik server uptime - -### configuration - -Needs only `url` to server's `health` - -Here is an example for local server: - -```yaml -update_every : 1 -priority : 60000 - -local: - url : 'http://localhost:8080/health' - retries : 10 -``` - -Without configuration, module attempts to connect to `http://localhost:8080/health`. - ---- - -# varnish cache - -Module uses the `varnishstat` command to provide varnish cache statistics. - -It produces: - -1. **Connections Statistics** in connections/s - * accepted - * dropped - -2. **Client Requests** in requests/s - * received - -3. **All History Hit Rate Ratio** in percent - * hit - * miss - * hitpass - -4. **Current Poll Hit Rate Ratio** in percent - * hit - * miss - * hitpass - -5. **Expired Objects** in expired/s - * objects - -6. **Least Recently Used Nuked Objects** in nuked/s - * objects - - -7. **Number Of Threads In All Pools** in threads - * threads - -8. **Threads Statistics** in threads/s - * created - * failed - * limited - -9. **Current Queue Length** in requests - * in queue - -10. **Backend Connections Statistics** in connections/s - * successful - * unhealthy - * reused - * closed - * resycled - * failed - -10. **Requests To The Backend** in requests/s - * received - -11. **ESI Statistics** in problems/s - * errors - * warnings - -12. **Memory Usage** in MB - * free - * allocated - -13. **Uptime** in seconds - * uptime - - -### configuration - -No configuration is needed. - ---- - -# web_log - -Tails the apache/nginx/lighttpd/gunicorn log files to collect real-time web-server statistics. - -It produces following charts: - -1. **Response by type** requests/s - * success (1xx, 2xx, 304) - * error (5xx) - * redirect (3xx except 304) - * bad (4xx) - * other (all other responses) - -2. **Response by code family** requests/s - * 1xx (informational) - * 2xx (successful) - * 3xx (redirect) - * 4xx (bad) - * 5xx (internal server errors) - * other (non-standart responses) - * unmatched (the lines in the log file that are not matched) - -3. **Detailed Response Codes** requests/s (number of responses for each response code family individually) - -4. **Bandwidth** KB/s - * received (bandwidth of requests) - * send (bandwidth of responses) - -5. **Timings** ms (request processing time) - * min (bandwidth of requests) - * max (bandwidth of responses) - * average (bandwidth of responses) - -6. **Request per url** requests/s (configured by user) - -7. **Http Methods** requests/s (requests per http method) - -8. **Http Versions** requests/s (requests per http version) - -9. **IP protocols** requests/s (requests per ip protocol version) - -10. **Curent Poll Unique Client IPs** unique ips/s (unique client IPs per data collection iteration) - -11. **All Time Unique Client IPs** unique ips/s (unique client IPs since the last restart of netdata) - - -### configuration - -```yaml -nginx_log: - name : 'nginx_log' - path : '/var/log/nginx/access.log' - -apache_log: - name : 'apache_log' - path : '/var/log/apache/other_vhosts_access.log' - categories: - cacti : 'cacti.*' - observium : 'observium' -``` - -Module has preconfigured jobs for nginx, apache and gunicorn on various distros. - ---- |