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Diffstat (limited to 'python.d/README.md')
| -rw-r--r-- | python.d/README.md | 378 |
1 files changed, 361 insertions, 17 deletions
diff --git a/python.d/README.md b/python.d/README.md index 75f5614a7..7df6e3e86 100644 --- a/python.d/README.md +++ b/python.d/README.md @@ -704,6 +704,149 @@ If no configuration is given, module will attempt to connect to memcached instan --- +# 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 @@ -841,30 +984,58 @@ Without configuration, module attempts to connect to `http://localhost/stub_stat --- -# nginx_log +# nsd -Module monitors nginx access log and produces only one chart: +Module uses the `nsd-control stats_noreset` command to provide `nsd` statistics. -1. **nginx status codes** in requests/s - * 2xx - * 3xx - * 4xx - * 5xx +**Requirements:** + * Version of `nsd` must be 4.0+ + * Netdata must have permissions to run `nsd-control stats_noreset` -### configuration +It produces: -Sample for two vhosts: +1. **Queries** + * queries -```yaml -site_A: - path: '/var/log/nginx/access-A.log' +2. **Zones** + * master + * slave -site_B: - name: 'local' - path: '/var/log/nginx/access-B.log' -``` +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 -When no configuration file is found, module tries to parse `/var/log/nginx/access.log` file. + +Configuration is not needed. --- @@ -958,6 +1129,75 @@ 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`. + +--- + # redis Get INFO data from redis instance. @@ -1052,6 +1292,45 @@ Without any configuration module will try to autodetect where squid presents its --- +# 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. @@ -1151,3 +1430,68 @@ It produces: 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. + +--- |