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 /collectors/cgroups.plugin/sys_fs_cgroup.c | |
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 'collectors/cgroups.plugin/sys_fs_cgroup.c')
-rw-r--r-- | collectors/cgroups.plugin/sys_fs_cgroup.c | 23 |
1 files changed, 11 insertions, 12 deletions
diff --git a/collectors/cgroups.plugin/sys_fs_cgroup.c b/collectors/cgroups.plugin/sys_fs_cgroup.c index b214b3731b..74aedf2b52 100644 --- a/collectors/cgroups.plugin/sys_fs_cgroup.c +++ b/collectors/cgroups.plugin/sys_fs_cgroup.c @@ -857,16 +857,16 @@ struct cgroup { char *filename_cpu_cfs_quota; unsigned long long cpu_cfs_quota; - RRDSETVAR *chart_var_cpu_limit; + const RRDSETVAR_ACQUIRED *chart_var_cpu_limit; NETDATA_DOUBLE prev_cpu_usage; char *filename_memory_limit; unsigned long long memory_limit; - RRDSETVAR *chart_var_memory_limit; + const RRDSETVAR_ACQUIRED *chart_var_memory_limit; char *filename_memoryswap_limit; unsigned long long memoryswap_limit; - RRDSETVAR *chart_var_memoryswap_limit; + const RRDSETVAR_ACQUIRED *chart_var_memoryswap_limit; // services RRDDIM *rd_cpu; @@ -3708,10 +3708,10 @@ cpu_limits2_err: } } -static inline int update_memory_limits(char **filename, RRDSETVAR **chart_var, unsigned long long *value, const char *chart_var_name, struct cgroup *cg) { +static inline int update_memory_limits(char **filename, const RRDSETVAR_ACQUIRED **chart_var, unsigned long long *value, const char *chart_var_name, struct cgroup *cg) { if(*filename) { if(unlikely(!*chart_var)) { - *chart_var = rrdsetvar_custom_chart_variable_create(cg->st_mem_usage, chart_var_name); + *chart_var = rrdsetvar_custom_chart_variable_add_and_acquire(cg->st_mem_usage, chart_var_name); if(!*chart_var) { error("Cannot create cgroup %s chart variable '%s'. Will not update its limit anymore.", cg->id, chart_var_name); freez(*filename); @@ -3727,7 +3727,7 @@ static inline int update_memory_limits(char **filename, RRDSETVAR **chart_var, u *filename = NULL; } else { - rrdsetvar_custom_chart_variable_set(*chart_var, (NETDATA_DOUBLE)(*value / (1024 * 1024))); + rrdsetvar_custom_chart_variable_set(cg->st_mem_usage, *chart_var, (NETDATA_DOUBLE)(*value / (1024 * 1024))); return 1; } } else { @@ -3742,11 +3742,11 @@ static inline int update_memory_limits(char **filename, RRDSETVAR **chart_var, u char *s = "max\n\0"; if(strcmp(s, buffer) == 0){ *value = UINT64_MAX; - rrdsetvar_custom_chart_variable_set(*chart_var, (NETDATA_DOUBLE)(*value / (1024 * 1024))); + rrdsetvar_custom_chart_variable_set(cg->st_mem_usage, *chart_var, (NETDATA_DOUBLE)(*value / (1024 * 1024))); return 1; } *value = str2ull(buffer); - rrdsetvar_custom_chart_variable_set(*chart_var, (NETDATA_DOUBLE)(*value / (1024 * 1024))); + rrdsetvar_custom_chart_variable_set(cg->st_mem_usage, *chart_var, (NETDATA_DOUBLE)(*value / (1024 * 1024))); return 1; } } @@ -3843,7 +3843,7 @@ void update_cgroup_charts(int update_every) { } if(unlikely(!cg->chart_var_cpu_limit)) { - cg->chart_var_cpu_limit = rrdsetvar_custom_chart_variable_create(cg->st_cpu, "cpu_limit"); + cg->chart_var_cpu_limit = rrdsetvar_custom_chart_variable_add_and_acquire(cg->st_cpu, "cpu_limit"); if(!cg->chart_var_cpu_limit) { error("Cannot create cgroup %s chart variable 'cpu_limit'. Will not update its limit anymore.", cg->id); if(cg->filename_cpuset_cpus) freez(cg->filename_cpuset_cpus); @@ -3868,8 +3868,6 @@ void update_cgroup_charts(int update_every) { value = (NETDATA_DOUBLE)cg->cpuset_cpus * 100; } if(likely(value)) { - rrdsetvar_custom_chart_variable_set(cg->chart_var_cpu_limit, value); - if(unlikely(!cg->st_cpu_limit)) { snprintfz(title, CHART_TITLE_MAX, "CPU Usage within the limits"); @@ -3909,14 +3907,15 @@ void update_cgroup_charts(int update_every) { cg->prev_cpu_usage = cpu_usage; + rrdsetvar_custom_chart_variable_set(cg->st_cpu, cg->chart_var_cpu_limit, value); rrdset_done(cg->st_cpu_limit); } else { - rrdsetvar_custom_chart_variable_set(cg->chart_var_cpu_limit, NAN); if(unlikely(cg->st_cpu_limit)) { rrdset_is_obsolete(cg->st_cpu_limit); cg->st_cpu_limit = NULL; } + rrdsetvar_custom_chart_variable_set(cg->st_cpu, cg->chart_var_cpu_limit, NAN); } } } |