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[Imported from Trac: page Munin_Stats-Gatherer_Readme, version 3]
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(Draft)<br>
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It's the README file for munin stats-gatherer plugins<br>
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Please see ticket #966
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```
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= Tahoe-LAFS Stats-Gatherer plugins =
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# Tahoe-LAFS Stats-Gatherer Plugins
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1. Overview
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2. Plugins details
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2.1. Helper plugins
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2.2. Traffic plugins
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2.3. Storage plugins
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2.4. Load plugins
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2. Plugins Details
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1. Helper Plugins
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2. Traffic Plugins
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3. Storage Plugins
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4. Load Plugins
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3. Plugins Installation
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4. Plugins testing
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4. Plugins Testing
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== Overview ==
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# Overview
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This is the README for the munin stats-gatherer plugins (see ticket #966).
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For running these plugins you need to have a Tahoe-LAFS stats-gatherer node.
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You can find more information in file docs/stats.txt
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For plugins configuration please read tahoe-stats_conf
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You can find more information in the file docs/stats.txt.
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= Plugins details =
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For plugins configuration please read tahoe-stats_conf.
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== Helper plugins ==
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# Plugins Details
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These plugins need a Tahoe-LAFS Helper
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## Helper Plugins
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tahoe_stats_helper_active_uploads: Shows the number of files actively being processed by the helper
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tahoe_stats_helper_encoded_bytes: Shows the number of bytes encoded by the helper
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tahoe_stats_helper_encoding_files: Shows the number of encoding files
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tahoe_stats_helper_encoding_filesize: Shows total size of encoding files
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tahoe_stats_helper_encoding_files_old: Shows total size of old encoding files
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tahoe_stats_helper_fetched_bytes: Shows the number of bytes fetched by the helper
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tahoe_stats_helper_incoming_files: Shows the number of incoming files
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tahoe_stats_helper_incoming_filesize: Shows total size of incoming files
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tahoe_stats_helper_incoming_files_old: Shows total size of old incoming files
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tahoe_stats_helper_upload_already_present: Shows the number of uploads whose files are already present in the grid
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tahoe_stats_helper_upload_need_upload: Shows the number of uploads whose files are not already present in the grid
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tahoe_stats_helper_upload_requests: Shows the number of upload requests arriving at the helper
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> These plugins need a Tahoe-LAFS Helper:
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== Traffic plugins ==
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| tahoe_stats_helper_active_uploads | Shows the number of files actively being processed by the helper |
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| tahoe_stats_helper_encoded_bytes | Shows the number of bytes encoded by the helper |
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tahoe_stats_mutable_files_published: Shows the number of mutable files published
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tahoe_stats_mutable_files_retrieved: Shows the number of files retrieved
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tahoe_stats_uploader_bytes_uploaded: Shows the number of bytes uploaded
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tahoe_stats_uploader_files_uploaded: Shows the number of files uploaded
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| tahoe_stats_helper_encoding_files | Shows the number of encoding files |
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| tahoe_stats_helper_encoding_filesize | Shows total size of encoding files |
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== Storage plugins ==
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| tahoe_stats_helper_encoding_files_old | Shows total size of old encoding files |
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| tahoe_stats_helper_fetched_bytes | Shows the number of bytes fetched by the helper |
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tahoe_stats_storage_allocated: Shows space allocated
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tahoe_stats_storage_bytes_added: Shows cumulative bytes added
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tahoe_stats_storage_bytes_freed: Shows cumulative bytes removed
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tahoe_stats_storage_disk_used: Shows space consumed
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tahoe_stats_storage_operations_allocate: Shows how many allocate_buckets operations occurred per second.
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Each immutable file upload causes one such operation per server
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| tahoe_stats_helper_incoming_files | Shows the number of incoming files |
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| tahoe_stats_helper_incoming_filesize | Shows total size of incoming files |
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tahoe_stats_storage_operations_get: This graph shows how many get_bucket operations occurred per second.
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Each immutable file download/check causes one such operation per server
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| tahoe_stats_helper_incoming_files_old | Shows total size of old incoming files |
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| tahoe_stats_helper_upload_already_present | Shows the number of uploads whose files are already present in the grid |
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tahoe_stats_storage_bytes_added: Shows how many readv operations occurred per second.
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Each dirnode read causes one such operation per server.
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| tahoe_stats_helper_upload_need_upload | Shows the number of uploads whose files are not already present in the grid |
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| tahoe_stats_helper_upload_requests | Shows the number of upload requests arriving at the helper |
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tahoe_stats_storage_operations_writev: Shows how many writev operations occurred per second.
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Each mutable file/dirnode write causes one such operation per server
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## Traffic Plugins
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== Load plugins ==
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| tahoe_stats_mutable_files_published | Shows the number of mutable files published |
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| tahoe_stats_mutable_files_retrieved | Shows the number of files retrieved |
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tahoe_stats_runtime_load_peak: Shows peak reactor delay
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tahoe_stats_runtime_load_avg: Shows average reactor delay
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tahoe_stats_cpu_monitor_15min_avg: Estimate of what percentage of system CPU time was consumed by the node process, 15min average
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tahoe_stats_cpu_monitor_5min_avg: Estimate of what percentage of system CPU time was consumed by the node process, 5min average
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| tahoe_stats_uploader_bytes_uploaded | Shows the number of bytes uploaded |
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| tahoe_stats_uploader_files_uploaded | Shows the number of files uploaded |
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= Plugins Installation =
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## Storage Plugins
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tahoe_stats need to be renamed/copied/linked to the plugin name you want.
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you need to do this for each graph you want.
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| tahoe_stats_storage_allocated | Shows space allocated |
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| tahoe_stats_storage_bytes_added | Shows cumulative bytes added |
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| tahoe_stats_storage_bytes_freed | Shows cumulative bytes removed |
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| tahoe_stats_storage_disk_used | Shows space consumed |
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| tahoe_stats_storage_operations_allocate | Shows how many allocate_buckets operations occurred per second. Each immutable file upload causes one such operation per server. |
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| tahoe_stats_storage_operations_get | Shows how many get_bucket operations occurred per second. Each immutable file download/check causes one such operation per server. |
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| tahoe_stats_storage_bytes_added | Shows how many readv operations occurred per second. Each dirnode read causes one such operation per server. |
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| tahoe_stats_storage_operations_writev | Shows how many writev operations occurred per second. Each mutable file/dirnode write causes one such operation per server. |
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## Load Plugins
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| tahoe_stats_runtime_load_peak | Shows peak reactor delay |
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| tahoe_stats_runtime_load_avg | Shows average reactor delay |
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| tahoe_stats_cpu_monitor_15min_avg | Estimate of what percentage of system CPU time was consumed by the node process, 15min average |
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| tahoe_stats_cpu_monitor_5min_avg | Estimate of what percentage of system CPU time was consumed by the node process, 5min average |
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# Plugins Installation
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tahoe_stats need to be renamed/copied/linked to the plugin name you want. You need to do this for each graph you want.
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For example:
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If you want to show the "Tahoe-LAFS Runtime Load Average Graph":
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Just copy tahoe_stats to '/etc/munin/plugins/tahoe_stats_runtime_load_avg'
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If you want all graphs you can run these commands:
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```
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cp tahoe_stats /etc/munin/plugins/tahoe_stats.bak
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# the .bak extension is needed, otherwise Munin-Node will try to run it.
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cd /etc/munin/plugins/
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chmod +x tahoe_stats.bak
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for FILE in `grep "'tahoe_" tahoe_stats.bak | cut -d\' -f2`; do ln -s tahoe_stats.bak $FILE;done;
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```
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Edit the configuration file "tahoe-stats_conf" and copy it to /etc/munin/plugin-conf.d/
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After, edit the configuration file "tahoe-stats_conf" and copy it to /etc/munin/plugin-conf.d/
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Reload the Munin-Node process: /etc/init.d/munin-node reload
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Note: You need to wait 5 minutes before Munin-Node creates any graphs
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Note:
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You need to wait 5min before Munin-Node creates any graphs
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# Plugins Testing
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= Plugins testing =
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To test a plugin you can run: munin-run <plugin_file>
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To test plugin you can run: munin-run 'plugin file'
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For example:
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```
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# munin-run tahoe_stats_storage_disk_used
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RM1X_gfsd.value 28093239296
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[..]
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```
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To display graph configuration add 'config' at the end of command line:
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```
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#munin-run tahoe_stats_storage_disk_used config
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graph_title Tahoe-LAFS Storage Server Disk Used
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graph_vlabel bytes
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