mirror of
https://github.com/netdata/netdata.git
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6ca6d840dd
* Database engine prototype version 0
* Database engine initial integration with netdata POC
* Scalable database engine with file and memory management.
* Database engine integration with netdata
* Added MIN MAX definitions to fix alpine build of travis CI
* Bugfix for backends and new DB engine, remove useless rrdset_time2slot() calls and erroneous checks
* DB engine disk protocol correction
* Moved DB engine storage file location to /var/cache/netdata/{host}/dbengine
* Fix configure to require openSSL for DB engine
* Fix netdata daemon health not holding read lock when iterating chart dimensions
* Optimized query API for new DB engine and old netdata DB fallback code-path
* netdata database internal query API improvements and cleanup
* Bugfix for DB engine queries returning empty values
* Added netdata internal check for data queries for old and new DB
* Added statistics to DB engine and fixed memory corruption bug
* Added preliminary charts for DB engine statistics
* Changed DB engine ratio statistics to incremental
* Added netdata statistics charts for DB engine internal statistics
* Fix for netdata not compiling successfully when missing dbengine dependencies
* Added DB engine functional test to netdata unittest command parameter
* Implemented DB engine dataset generator based on example.random chart
* Fix build error in CI
* Support older versions of libuv1
* Fixes segmentation fault when using multiple DB engine instances concurrently
* Fix memory corruption bug
* Fixed createdataset advanced option not exiting
* Fix for DB engine not working on FreeBSD
* Support FreeBSD library paths of new dependencies
* Workaround for unsupported O_DIRECT in OS X
* Fix unittest crashing during cleanup
* Disable DB engine FS caching in Apple OS X since O_DIRECT is not available
* Fix segfault when unittest and DB engine dataset generator don't have permissions to create temporary host
* Modified DB engine dataset generator to create multiple files
* Toned down overzealous page cache prefetcher
* Reduce internal memory fragmentation for page-cache data pages
* Added documentation describing the DB engine
* Documentation bugfixes
* Fixed unit tests compilation errors since last rebase
* Added note to back-up the DB engine files in documentation
* Added codacy fix.
* Support old gcc versions for atomic counters in DB engine
111 lines
3.5 KiB
C
111 lines
3.5 KiB
C
// SPDX-License-Identifier: GPL-3.0-or-later
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#include "rrdset2json.h"
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// generate JSON for the /api/v1/chart API call
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void rrdset2json(RRDSET *st, BUFFER *wb, size_t *dimensions_count, size_t *memory_used) {
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rrdset_rdlock(st);
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time_t first_entry_t = rrdset_first_entry_t(st);
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time_t last_entry_t = rrdset_last_entry_t(st);
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buffer_sprintf(wb,
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"\t\t{\n"
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"\t\t\t\"id\": \"%s\",\n"
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"\t\t\t\"name\": \"%s\",\n"
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"\t\t\t\"type\": \"%s\",\n"
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"\t\t\t\"family\": \"%s\",\n"
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"\t\t\t\"context\": \"%s\",\n"
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"\t\t\t\"title\": \"%s (%s)\",\n"
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"\t\t\t\"priority\": %ld,\n"
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"\t\t\t\"plugin\": \"%s\",\n"
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"\t\t\t\"module\": \"%s\",\n"
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"\t\t\t\"enabled\": %s,\n"
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"\t\t\t\"units\": \"%s\",\n"
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"\t\t\t\"data_url\": \"/api/v1/data?chart=%s\",\n"
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"\t\t\t\"chart_type\": \"%s\",\n"
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"\t\t\t\"duration\": %ld,\n"
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"\t\t\t\"first_entry\": %ld,\n"
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"\t\t\t\"last_entry\": %ld,\n"
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"\t\t\t\"update_every\": %d,\n"
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"\t\t\t\"dimensions\": {\n"
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, st->id
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, st->name
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, st->type
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, st->family
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, st->context
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, st->title, st->name
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, st->priority
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, st->plugin_name?st->plugin_name:""
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, st->module_name?st->module_name:""
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, rrdset_flag_check(st, RRDSET_FLAG_ENABLED)?"true":"false"
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, st->units
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, st->name
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, rrdset_type_name(st->chart_type)
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, last_entry_t - first_entry_t + st->update_every//st->entries * st->update_every
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, first_entry_t//rrdset_first_entry_t(st)
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, last_entry_t//rrdset_last_entry_t(st)
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, st->update_every
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);
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unsigned long memory = st->memsize;
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size_t dimensions = 0;
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RRDDIM *rd;
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rrddim_foreach_read(rd, st) {
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if(rrddim_flag_check(rd, RRDDIM_FLAG_HIDDEN) || rrddim_flag_check(rd, RRDDIM_FLAG_OBSOLETE)) continue;
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memory += rd->memsize;
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buffer_sprintf(
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wb
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, "%s"
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"\t\t\t\t\"%s\": { \"name\": \"%s\" }"
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, dimensions ? ",\n" : ""
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, rd->id
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, rd->name
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);
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dimensions++;
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}
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if(dimensions_count) *dimensions_count += dimensions;
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if(memory_used) *memory_used += memory;
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buffer_strcat(wb, "\n\t\t\t},\n\t\t\t\"green\": ");
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buffer_rrd_value(wb, st->green);
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buffer_strcat(wb, ",\n\t\t\t\"red\": ");
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buffer_rrd_value(wb, st->red);
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buffer_strcat(wb, ",\n\t\t\t\"alarms\": {\n");
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size_t alarms = 0;
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RRDCALC *rc;
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for(rc = st->alarms; rc ; rc = rc->rrdset_next) {
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buffer_sprintf(
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wb
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, "%s"
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"\t\t\t\t\"%s\": {\n"
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"\t\t\t\t\t\"id\": %u,\n"
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"\t\t\t\t\t\"status\": \"%s\",\n"
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"\t\t\t\t\t\"units\": \"%s\",\n"
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"\t\t\t\t\t\"update_every\": %d\n"
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"\t\t\t\t}"
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, (alarms) ? ",\n" : ""
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, rc->name
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, rc->id
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, rrdcalc_status2string(rc->status)
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, rc->units
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, rc->update_every
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);
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alarms++;
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}
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buffer_sprintf(wb,
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"\n\t\t\t}\n\t\t}"
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);
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rrdset_unlock(st);
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}
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