iilyak opened a new pull request #761: Add a debugging utilities for listing processes URL: https://github.com/apache/couchdb/pull/761 ## Overview This adds few useful debug tools. 1. List a cluster of linked processes. This function receives the initial Pid to start from. The function doesn't recurse to pids older than initial one. ``` 167> couch_debug:print_linked_processes(whereis(couch_index_server)). name | reductions | message_queue_len | memory couch_index_server[<0.288.0>] | 478240 | 0 | 109696 couch_index:init/1[<0.3520.22>] | 4899 | 0 | 109456 couch_file:init/1[<0.886.22>] | 11973 | 0 | 67984 couch_index:init/1[<0.3520.22>] | 4899 | 0 | 109456 couch_index_updater:init/1[<0.3550.22>] | 19671 | 0 | 26408 couch_index:init/1[<0.3520.22>] | 4899 | 0 | 109456 couch_index_compactor:init/1[<0.885.22>] | 25 | 0 | 2704 couch_index:init/1[<0.3520.22>] | 4899 | 0 | 109456 couch_index_server[<0.288.0>] | 478240 | 0 | 109696 ``` 2. List couch_index_server children ``` 169> couch_debug:ps(couch_index_server). name | reductions | message_queue_len | memory |id couch_index_server[<0.288.0>] | 503398 | 0 | 109696 | couch_index:init/1[<0.10447.22>] | 4700 | 0 | 109456 | couch_file:init/1[<0.10462.22>] | 8514 | 0 | 67984 |46:#Port<0.134945>:/.shards/00000000-1fffffff/thedb-010b3e313347496ab96a4d762aae4e87.1503092951_design/mrview/8f3db710871cdc942f4793936e3de269.view couch_index:init/1[<0.10447.22>] | 4700 | 0 | 109456 | couch_index_updater:init/1[<0.10489.22>] | 12575 | 0 | 34312 | couch_index:init/1[<0.10447.22>] | 4700 | 0 | 109456 | couch_index_compactor:init/1[<0.10476.22>] | 25 | 0 | 2704 | couch_index:init/1[<0.10447.22>] | 4700 | 0 | 109456 | couch_index_server[<0.288.0>] | 503398 | 0 | 109696 | couch_index:init/1[<0.10630.22>] | 4750 | 0 | 109456 | couch_file:init/1[<0.10642.22>] | 9381 | 0 | 67984 |44:#Port<0.134965>:/.shards/a0000000-bfffffff/thedb-010b3e313347496ab96a4d762aae4e87.1503092951_design/mrview/8f3db710871cdc942f4793936e3de269.view ``` ## Testing recommendations - couch_debug:ps(couch_index_server). - couch_debug:print_linked_processes(whereis(couch_index_server)). ## Checklist - [x] Code is written and works correctly; - [ ] Changes are covered by tests; - [ ] Documentation reflects the changes; ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected]
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