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2023-08-03Revert "Refactor RRD code. (#15423)" (#15723)vkalintiris
This reverts commit 440bd51e08fdfa2a4daa191fb68643456028a753. dbengine was still being used for non-zero tiers even on non-dbengine modes.
2023-07-26Refactor RRD code. (#15423)vkalintiris
* Storage engine. * Host indexes to rrdb * Move globals to rrdb * Move storage_tiers_backfill to rrdb * default_rrd_update_every to rrdb * default_rrd_history_entries to rrdb * gap_when_lost_iterations_above to rrdb * rrdset_free_obsolete_time_s to rrdb * libuv_worker_threads to rrdb * ieee754_doubles to rrdb * rrdhost_free_orphan_time_s to rrdb * rrd_rwlock to rrdb * localhost to rrdb * rm extern from func decls * mv rrd macro under rrd.h * default_rrdeng_page_cache_mb to rrdb * default_rrdeng_extent_cache_mb to rrdb * db_engine_journal_check to rrdb * default_rrdeng_disk_quota_mb to rrdb * default_multidb_disk_quota_mb to rrdb * multidb_ctx to rrdb * page_type_size to rrdb * tier_page_size to rrdb * No storage_engine_id in rrdim functions * storage_engine_id is provided by st * Update to fix merge conflict. * Update field name * Remove unnecessary macros from rrd.h * Rm unused type decls * Rm duplicate func decls * make internal function static * Make the rest of public dbengine funcs accept a storage_instance. * No more rrdengine_instance :) * rm rrdset_debug from rrd.h * Use rrdb to access globals in ML and ACLK Missed due to not having the submodules in the worktree. * rm total_number * rm RRDVAR_TYPE_TOTAL * rm unused inline * Rm names from typedef'd enums * rm unused header include * Move include * Rm unused header include * s/rrdhost_find_or_create/rrdhost_get_or_create/g * s/find_host_by_node_id/rrdhost_find_by_node_id/ Also, remove duplicate definition in rrdcontext.c * rm macro used only once * rm macro used only once * Reduce rrd.h api by moving funcs into a collector specific utils header * Remove unused func * Move parser specific function out of rrd.h * return storage_number instead of void pointer * move code related to rrd initialization out of rrdhost.c * Remove tier_grouping from rrdim_tier Saves 8 * storage_tiers bytes per dimension. * Fix rebase * s/rrd_update_every/update_every/ * Mark functions as static and constify args * Add license notes and file to build systems. * Remove remaining non-log/config mentions of memory mode * Move rrdlabels api to separate file. Also, move localhost functions that loads labels outside of database/ and into daemon/ * Remove function decl in rrd.h * merge rrdhost_cache_dir_for_rrdset_alloc into rrdset_cache_dir * Do not expose internal function from rrd.h * Rm NETDATA_RRD_INTERNALS Only one function decl is covered. We have more database internal functions that we currently expose for no good reason. These will be placed in a separate internal header in follow up PRs. * Add license note * Include libnetdata.h instead of aral.h * Use rrdb to access localhost * Fix builds without dbengine * Add header to build system files * Add rrdlabels.h to build systems * Move func def from rrd.h to rrdhost.c * Fix macos build * Rm non-existing function * Rebase master * Define buffer length macro in ad_charts. * Fix FreeBSD builds. * Mark functions static * Rm func decls without definitions * Rebase master * Rebase master * Properly initialize value of storage tiers. * Fix build after rebase.
2023-07-06Rename generic `error` function (#15296)thiagoftsm
2023-01-27DBENGINE v2 - improvements part 10 (#14332)Costa Tsaousis
* replication cancels pending queries on exit * log when waiting for inflight queries * when there are collected and not-collected metrics, use the context priority from the collected only * Write metadata with a faster pace * Remove journal file size limit and sync mode to 0 / Drop wal checkpoint for now * Wrap in a big transaction remaining metadata writes (test 1) * fix higher tiers when tiering iterations = 2 * dbengine always returns db-aligned points; query engine expands the queries by 2 points in every direction to have enough data for interpolation * Wrap in a big transaction metadata writes (test 2) * replication cancelling fix * do not first and last entry in replication when the db has no retention * fix internal check condition * Increase metadata write batch size * always apply error limit to dbengine logs * Remove code that processes the obsolete health.db files * cleanup in query.c * do not allow queries to go beyond db boundaries * prevent internal log for +1 delta in timestamp * detect gap pages in conflicts * double protection for gap injection in main cache * Add checkpoint to prevent large WAL while running Remove unused and duplicate functions * do not allocate chart cache dir if not needed * add more info to unittests * revert query expansion to satisfy unittests Co-authored-by: Stelios Fragkakis <52996999+stelfrag@users.noreply.github.com>
2022-09-05Deduplicate all netdata strings (#13570)Costa Tsaousis
* rrdfamily * rrddim * rrdset plugin and module names * rrdset units * rrdset type * rrdset family * rrdset title * rrdset title more * rrdset context * rrdcalctemplate context and removal of context hash from rrdset * strings statistics * rrdset name * rearranged members of rrdset * eliminate rrdset name hash; rrdcalc chart converted to STRING * rrdset id, eliminated rrdset hash * rrdcalc, alarm_entry, alert_config and some of rrdcalctemplate * rrdcalctemplate * rrdvar * eval_variable * rrddimvar and rrdsetvar * rrdhost hostname, os and tags * fix master commits * added thread cache; implemented string_dup without locks * faster thread cache * rrdset and rrddim now use dictionaries for indexing * rrdhost now uses dictionary * rrdfamily now uses DICTIONARY * rrdvar using dictionary instead of AVL * allocate the right size to rrdvar flag members * rrdhost remaining char * members to STRING * * better error handling on indexing * strings now use a read/write lock to allow parallel searches to the index * removed AVL support from dictionaries; implemented STRING with native Judy calls * string releases should be negative * only 31 bits are allowed for enum flags * proper locking on strings * string threading unittest and fixes * fix lgtm finding * fixed naming * stream chart/dimension definitions at the beginning of a streaming session * thread stack variable is undefined on thread cancel * rrdcontext garbage collect per host on startup * worker control in garbage collection * relaxed deletion of rrdmetrics * type checking on dictfe * netdata chart to monitor rrdcontext triggers * Group chart label updates * rrdcontext better handling of collected rrdsets * rrdpush incremental transmition of definitions should use as much buffer as possible * require 1MB per chart * empty the sender buffer before enabling metrics streaming * fill up to 50% of buffer * reset signaling metrics sending * use the shared variable for status * use separate host flag for enabling streaming of metrics * make sure the flag is clear * add logging for streaming * add logging for streaming on buffer overflow * circular_buffer proper sizing * removed obsolete logs * do not execute worker jobs if not necessary * better messages about compression disabling * proper use of flags and updating rrdset last access time every time the obsoletion flag is flipped * monitor stream sender used buffer ratio * Update exporting unit tests * no need to compare label value with strcmp * streaming send workers now monitor bandwidth * workers now use strings * streaming receiver monitors incoming bandwidth * parser shift of worker ids * minor fixes * Group chart label updates * Populate context with dimensions that have data * Fix chart id * better shift of parser worker ids * fix for streaming compression * properly count received bytes * ensure LZ4 compression ring buffer does not wrap prematurely * do not stream empty charts; do not process empty instances in rrdcontext * need_to_send_chart_definition() does not need an rrdset lock any more * rrdcontext objects are collected, after data have been written to the db * better logging of RRDCONTEXT transitions * always set all variables needed by the worker utilization charts * implemented double linked list for most objects; eliminated alarm indexes from rrdhost; and many more fixes * lockless strings design - string_dup() and string_freez() are totally lockless when they dont need to touch Judy - only Judy is protected with a read/write lock * STRING code re-organization for clarity * thread_cache improvements; double numbers precision on worker threads * STRING_ENTRY now shadown STRING, so no duplicate definition is required; string_length() renamed to string_strlen() to follow the paradigm of all other functions, STRING internal statistics are now only compiled with NETDATA_INTERNAL_CHECKS * rrdhost index by hostname now cleans up; aclk queries of archieved hosts do not index hosts * Add index to speed up database context searches * Removed last_updated optimization (was also buggy after latest merge with master) Co-authored-by: Stelios Fragkakis <52996999+stelfrag@users.noreply.github.com> Co-authored-by: Vladimir Kobal <vlad@prokk.net>
2022-06-17Revert "Configurable storage engine for Netdata agents: step 3 (#12892)" ↵vkalintiris
(#13171) This reverts commit 100a12c6cc01222b1518e5e50d2147f592d8a111. A couple parent/child startup/shutdown scenarios can lead to crashes.
2022-06-16Configurable storage engine for Netdata agents: step 3 (#12892)Adrien Béraud
* storage engine: add host context API Add a new API to allow storage engines to manage host contexts. * Replace single global context with per-engine global context * Context is full managed by storage engines: a storage engine can use no context, a global engine context, per host contexts, or a mix of these. * Currently, only dbengine uses contexts. Following the current logic, legacy hosts use their own context, while non-legacy hosts share the global context. * storage engine: use empty function instead of null for context ops * rrdhost: don't check return value for void call * rrdhost: create context with host * storage engine: move rrddim ops to rrddim_mem.{c,h} * storage engine: don't use NULL for end-of-list marker * storage engine: fallback to default engine
2022-05-11Configurable storage engine for Netdata agents: step 2 (#12808)Adrien Béraud
2022-05-03Remove per chart configuration. (#12728)vkalintiris
After https://github.com/netdata/netdata/pull/12209 per-chart configuration was used for (a) enabling/disabling a chart, and (b) renaming dimensions. Regarding the first use case: We already have component-specific configuration options|flags to finely control how a chart should behave. Eg. "send charts matching" in streaming, "charts to skip from training" in ML, etc. If we really need the concept of a disabled chart, we can add a host-level simple pattern to match these charts. Regarding the second use case: It's not obvious why we'd need to provide support for remapping dimension names through a chart-specific configuration from the core agent. If the need arises, we could add such support at the right place, ie. a exporter/streaming config section. This will allow each flag to act indepentendly from each other and avoid managing flag-state manually at various places, eg: ``` if(unlikely(!rrdset_flag_check(st, RRDSET_FLAG_ENABLED))) { rrdset_flag_clear(st, RRDSET_FLAG_UPSTREAM_SEND); rrdset_flag_set(st, RRDSET_FLAG_UPSTREAM_IGNORE); } ... ```
2022-02-22Remove chart specific configuration from netdata.conf except enabled (#12209)Stelios Fragkakis
2019-10-03Make dbengine the default memory mode (#6977)Markos Fountoulakis
* Basic functionality for dbengine stress test. * Fix coverity defects * Refactored dbengine stress test to be configurable * Added benchmark results and evaluation in dbengine documentation * Make dbengine the default memory mode
2019-07-01Repeating alarm notifications (#6309)thiagoftsm
* Alarm_repeat mergin the original! * Alarm_repeat binary tree! * Alarm_repeat binary tree finished! * Alarm_repeat move function and format string * Alarms bringing a new Binary tree * Alarms fixing the last two * Alarm_repeat useless var! * Alarm fix format and repeat alarm! * Alarm_backend steps! * Alarm_repeat stopping to test cloud! * Alarm_repeat stopping to test cloud 2! * Alarm_repeat fixing when restart!
2019-05-22Fix creating chart directories when not necessary with memory mode dbengine ↵Markos Fountoulakis
(#6078)
2019-05-15Database engine (#5282)Markos Fountoulakis
* 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
2018-10-15modularized all source code (#4391)Costa Tsaousis
* modularized all external plugins * added README.md in plugins * fixed title * fixed typo * relative link to external plugins * external plugins configuration README * added plugins link * remove plugins link * plugin names are links * added links to external plugins * removed unecessary spacing * list to table * added language * fixed typo * list to table on internal plugins * added more documentation to internal plugins * moved python, node, and bash code and configs into the external plugins * added statsd README * fix bug with corrupting config.h every 2nd compilation * moved all config files together with their code * more documentation * diskspace info * fixed broken links in apps.plugin * added backends docs * updated plugins readme * move nc-backend.sh to backends * created daemon directory * moved all code outside src/ * fixed readme identation * renamed plugins.d.plugin to plugins.d * updated readme * removed linux- from linux plugins * updated readme * updated readme * updated readme * updated readme * updated readme * updated readme * fixed README.md links * fixed netdata tree links * updated codacy, codeclimate and lgtm excluded paths * update CMakeLists.txt * updated automake options at top directory * libnetdata slit into directories * updated READMEs * updated READMEs * updated ARL docs * updated ARL docs * moved /plugins to /collectors * moved all external plugins outside plugins.d * updated codacy, codeclimate, lgtm * updated README * updated url * updated readme * updated readme * updated readme * updated readme * moved api and web into webserver * web/api web/gui web/server * modularized webserver * removed web/gui/version.txt