diff options
author | Costa Tsaousis <costa@netdata.cloud> | 2022-09-19 23:46:13 +0300 |
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committer | GitHub <noreply@github.com> | 2022-09-19 23:46:13 +0300 |
commit | cb7af25c09d8775d1967cb0553268075cda868d4 (patch) | |
tree | 9e86bc359bb2b1ec72d3a1382236703dc633ad63 /exporting/prometheus | |
parent | 62246029160025a8d6503d9fbb617c7b029b9126 (diff) |
RRD structures managed by dictionaries (#13646)
* rrdset - in progress
* rrdset optimal constructor; rrdset conflict
* rrdset final touches
* re-organization of rrdset object members
* prevent use-after-free
* dictionary dfe supports also counting of iterations
* rrddim managed by dictionary
* rrd.h cleanup
* DICTIONARY_ITEM now is referencing actual dictionary items in the code
* removed rrdset linked list
* Revert "removed rrdset linked list"
This reverts commit 690d6a588b4b99619c2c5e10f84e8f868ae6def5.
* removed rrdset linked list
* added comments
* Switch chart uuid to static allocation in rrdset
Remove unused functions
* rrdset_archive() and friends...
* always create rrdfamily
* enable ml_free_dimension
* rrddim_foreach done with dfe
* most custom rrddim loops replaced with rrddim_foreach
* removed accesses to rrddim->dimensions
* removed locks that are no longer needed
* rrdsetvar is now managed by the dictionary
* set rrdset is rrdsetvar, fixes https://github.com/netdata/netdata/pull/13646#issuecomment-1242574853
* conflict callback of rrdsetvar now properly checks if it has to reset the variable
* dictionary registered callbacks accept as first parameter the DICTIONARY_ITEM
* dictionary dfe now uses internal counter to report; avoided excess variables defined with dfe
* dictionary walkthrough callbacks get dictionary acquired items
* dictionary reference counters that can be dupped from zero
* added advanced functions for get and del
* rrdvar managed by dictionaries
* thread safety for rrdsetvar
* faster rrdvar initialization
* rrdvar string lengths should match in all add, del, get functions
* rrdvar internals hidden from the rest of the world
* rrdvar is now acquired throughout netdata
* hide the internal structures of rrdsetvar
* rrdsetvar is now acquired through out netdata
* rrddimvar managed by dictionary; rrddimvar linked list removed; rrddimvar structures hidden from the rest of netdata
* better error handling
* dont create variables if not initialized for health
* dont create variables if not initialized for health again
* rrdfamily is now managed by dictionaries; references of it are acquired dictionary items
* type checking on acquired objects
* rrdcalc renaming of functions
* type checking for rrdfamily_acquired
* rrdcalc managed by dictionaries
* rrdcalc double free fix
* host rrdvars is always needed
* attempt to fix deadlock 1
* attempt to fix deadlock 2
* Remove unused variable
* attempt to fix deadlock 3
* snprintfz
* rrdcalc index in rrdset fix
* Stop storing active charts and computing chart hashes
* Remove store active chart function
* Remove compute chart hash function
* Remove sql_store_chart_hash function
* Remove store_active_dimension function
* dictionary delayed destruction
* formatting and cleanup
* zero dictionary base on rrdsetvar
* added internal error to log delayed destructions of dictionaries
* typo in rrddimvar
* added debugging info to dictionary
* debug info
* fix for rrdcalc keys being empty
* remove forgotten unlock
* remove deadlock
* Switch to metadata version 5 and drop
chart_hash
chart_hash_map
chart_active
dimension_active
v_chart_hash
* SQL cosmetic changes
* do not busy wait while destroying a referenced dictionary
* remove deadlock
* code cleanup; re-organization;
* fast cleanup and flushing of dictionaries
* number formatting fixes
* do not delete configured alerts when archiving a chart
* rrddim obsolete linked list management outside dictionaries
* removed duplicate contexts call
* fix crash when rrdfamily is not initialized
* dont keep rrddimvar referenced
* properly cleanup rrdvar
* removed some locks
* Do not attempt to cleanup chart_hash / chart_hash_map
* rrdcalctemplate managed by dictionary
* register callbacks on the right dictionary
* removed some more locks
* rrdcalc secondary index replaced with linked-list; rrdcalc labels updates are now executed by health thread
* when looking up for an alarm look using both chart id and chart name
* host initialization a bit more modular
* init rrdlabels on host update
* preparation for dictionary views
* improved comment
* unused variables without internal checks
* service threads isolation and worker info
* more worker info in service thread
* thread cancelability debugging with internal checks
* strings data races addressed; fixes https://github.com/netdata/netdata/issues/13647
* dictionary modularization
* Remove unused SQL statement definition
* unit-tested thread safety of dictionaries; removed data race conditions on dictionaries and strings; dictionaries now can detect if the caller is holds a write lock and automatically all the calls become their unsafe versions; all direct calls to unsafe version is eliminated
* remove worker_is_idle() from the exit of service functions, because we lose the lock time between loops
* rewritten dictionary to have 2 separate locks, one for indexing and another for traversal
* Update collectors/cgroups.plugin/sys_fs_cgroup.c
Co-authored-by: Vladimir Kobal <vlad@prokk.net>
* Update collectors/cgroups.plugin/sys_fs_cgroup.c
Co-authored-by: Vladimir Kobal <vlad@prokk.net>
* Update collectors/proc.plugin/proc_net_dev.c
Co-authored-by: Vladimir Kobal <vlad@prokk.net>
* fix memory leak in rrdset cache_dir
* minor dictionary changes
* dont use index locks in single threaded
* obsolete dict option
* rrddim options and flags separation; rrdset_done() optimization to keep array of reference pointers to rrddim;
* fix jump on uninitialized value in dictionary; remove double free of cache_dir
* addressed codacy findings
* removed debugging code
* use the private refcount on dictionaries
* make dictionary item desctructors work on dictionary destruction; strictier control on dictionary API; proper cleanup sequence on rrddim;
* more dictionary statistics
* global statistics about dictionary operations, memory, items, callbacks
* dictionary support for views - missing the public API
* removed warning about unused parameter
* chart and context name for cloud
* chart and context name for cloud, again
* dictionary statistics fixed; first implementation of dictionary views - not currently used
* only the master can globally delete an item
* context needs netdata prefix
* fix context and chart it of spins
* fix for host variables when health is not enabled
* run garbage collector on item insert too
* Fix info message; remove extra "using"
* update dict unittest for new placement of garbage collector
* we need RRDHOST->rrdvars for maintaining custom host variables
* Health initialization needs the host->host_uuid
* split STRING to its own files; no code changes other than that
* initialize health unconditionally
* unit tests do not pollute the global scope with their variables
* Skip initialization when creating archived hosts on startup. When a child connects it will initialize properly
Co-authored-by: Stelios Fragkakis <52996999+stelfrag@users.noreply.github.com>
Co-authored-by: Vladimir Kobal <vlad@prokk.net>
Diffstat (limited to 'exporting/prometheus')
-rw-r--r-- | exporting/prometheus/prometheus.c | 28 | ||||
-rw-r--r-- | exporting/prometheus/remote_write/remote_write.c | 8 |
2 files changed, 16 insertions, 20 deletions
diff --git a/exporting/prometheus/prometheus.c b/exporting/prometheus/prometheus.c index 26c0811d6f..5719db4187 100644 --- a/exporting/prometheus/prometheus.c +++ b/exporting/prometheus/prometheus.c @@ -349,12 +349,12 @@ struct host_variables_callback_options { * @param data callback options. * @return Returns 1 if the chart can be sent, 0 otherwise. */ -static int print_host_variables(const char *name __maybe_unused, void *rv_ptr, void *data) { - RRDVAR *rv = rv_ptr; +static int print_host_variables_callback(const DICTIONARY_ITEM *item __maybe_unused, void *rv_ptr __maybe_unused, void *data) { + const RRDVAR_ACQUIRED *rv = (const RRDVAR_ACQUIRED *)item; struct host_variables_callback_options *opts = data; - if (rv->options & (RRDVAR_OPTION_CUSTOM_HOST_VAR | RRDVAR_OPTION_CUSTOM_CHART_VAR)) { + if (rrdvar_flags(rv) & (RRDVAR_FLAG_CUSTOM_HOST_VAR | RRDVAR_FLAG_CUSTOM_CHART_VAR)) { if (!opts->host_header_printed) { opts->host_header_printed = 1; @@ -519,7 +519,6 @@ static void rrd_stats_api_v1_charts_allmetrics_prometheus( PROMETHEUS_OUTPUT_OPTIONS output_options) { SIMPLE_PATTERN *filter = simple_pattern_create(filter_string, NULL, SIMPLE_PATTERN_EXACT); - rrdhost_rdlock(host); char hostname[PROMETHEUS_ELEMENT_MAX + 1]; prometheus_label_copy(hostname, rrdhost_hostname(host), PROMETHEUS_ELEMENT_MAX); @@ -564,17 +563,14 @@ static void rrd_stats_api_v1_charts_allmetrics_prometheus( .host_header_printed = 0 }; - rrdvar_walkthrough_read(host->rrdvar_root_index, print_host_variables, &opts); + rrdvar_walkthrough_read(host->rrdvars, print_host_variables_callback, &opts); } // for each chart RRDSET *st; - rrdset_foreach_read(st, host) - { + rrdset_foreach_read(st, host) { if (likely(can_send_rrdset(instance, st, filter))) { - rrdset_rdlock(st); - char chart[PROMETHEUS_ELEMENT_MAX + 1]; char context[PROMETHEUS_ELEMENT_MAX + 1]; char family[PROMETHEUS_ELEMENT_MAX + 1]; @@ -615,8 +611,7 @@ static void rrd_stats_api_v1_charts_allmetrics_prometheus( // for each dimension RRDDIM *rd; - rrddim_foreach_read(rd, st) - { + rrddim_foreach_read(rd, st) { if (rd->collections_counter && !rrddim_flag_check(rd, RRDDIM_FLAG_OBSOLETE)) { char dimension[PROMETHEUS_ELEMENT_MAX + 1]; char *suffix = ""; @@ -665,7 +660,8 @@ static void rrd_stats_api_v1_charts_allmetrics_prometheus( buffer_sprintf(wb, "# TYPE %s_%s%s %s\n", prefix, context, suffix, p.type); generate_as_collected_prom_metric(wb, &p, homogeneous, prometheus_collector); - } else { + } + else { // the dimensions of the chart, do not have the same algorithm, multiplier or divisor // we create a metric per dimension @@ -683,7 +679,8 @@ static void rrd_stats_api_v1_charts_allmetrics_prometheus( generate_as_collected_prom_metric(wb, &p, homogeneous, prometheus_collector); } - } else { + } + else { // we need average or sum of the data time_t first_time = instance->after; @@ -750,12 +747,11 @@ static void rrd_stats_api_v1_charts_allmetrics_prometheus( } } } - - rrdset_unlock(st); + rrddim_foreach_done(rd); } } + rrdset_foreach_done(st); - rrdhost_unlock(host); simple_pattern_free(filter); } diff --git a/exporting/prometheus/remote_write/remote_write.c b/exporting/prometheus/remote_write/remote_write.c index ad337513eb..15f5e41036 100644 --- a/exporting/prometheus/remote_write/remote_write.c +++ b/exporting/prometheus/remote_write/remote_write.c @@ -321,12 +321,12 @@ int format_dimension_prometheus_remote_write(struct instance *instance, RRDDIM * return 0; } -static int format_variable_prometheus_remote_write_callback(const char *name_txt __maybe_unused, void *rv_ptr, void *data) { - RRDVAR *rv = rv_ptr; +static int format_variable_prometheus_remote_write_callback(const DICTIONARY_ITEM *item __maybe_unused, void *rv_ptr __maybe_unused, void *data) { + const RRDVAR_ACQUIRED *rv = (const RRDVAR_ACQUIRED *)item; struct prometheus_remote_write_variables_callback_options *opts = data; - if (rv->options & (RRDVAR_OPTION_CUSTOM_HOST_VAR | RRDVAR_OPTION_CUSTOM_CHART_VAR)) { + if (rrdvar_flags(rv) & (RRDVAR_FLAG_CUSTOM_HOST_VAR | RRDVAR_FLAG_CUSTOM_CHART_VAR)) { RRDHOST *host = opts->host; struct instance *instance = opts->instance; struct simple_connector_data *simple_connector_data = @@ -363,7 +363,7 @@ int format_variables_prometheus_remote_write(struct instance *instance, RRDHOST .now = now_realtime_usec(), }; - return rrdvar_walkthrough_read(host->rrdvar_root_index, format_variable_prometheus_remote_write_callback, &opt); + return rrdvar_walkthrough_read(host->rrdvars, format_variable_prometheus_remote_write_callback, &opt); } /** |