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* Move ML under src
* Move spwan under src
* Move cli/ under src/
* move registry/ under src/
* move streaming/ under src/
* Move claim under src. Update docs
* Move database/ under src/
* Move libnetdata/ under src/
* Update references to libnetdata
* Fix logsmanagement includes
* Update generated script path.
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An atomic flag is used before every iteration
of the detection thread. The flag is set right
before the cancellation request. It is possible
for the detection thread to have already exited
prior to sending the cancellation request.
The training thread most probably suffers from
the same issue, a separate PR will be opened
to fix it.
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* cleanup alerts
* fix references
* fix references
* fix references
* load alerts once and apply them to each node
* simplify health_create_alarm_entry()
* Compile without warnings with compiler flags:
-Wall -Wextra -Wformat=2 -Wshadow -Wno-format-nonliteral -Winit-self
* code re-organization and cleanup
* generate patterns when applying prototypes; give unique dyncfg names to all alerts
* eval expressions keep the source and the parsed_as as STRING pointers
* renamed host to node in dyncfg ids
* renamed host to node in dyncfg ids
* add all cloud roles to the list of parsed X-Netdata-Role header and also default to member access level
* working functionality
* code re-organization: moved health event-loop to a new file, moved health globals to health.c
* rrdcalctemplate is removed; alert_cfg is removed; foreach dimension is removed; RRDCALCs are now instanciated only when they are linked to RRDSETs
* dyncfg alert prototypes initialization for alerts
* health dyncfg split to separate file
* cleanup not-needed code
* normalize matches between parsing and json
* also detect !* for disabled alerts
* dyncfg capability disabled
* Store alert config part1
* Add rrdlabels_common_count
* wip health variables lookup without indexes
* Improve rrdlabels_common_count by reusing rrdlabels_find_label_with_key_unsafe with an additional parameter
* working variables with runtime lookup
* working variables with runtime lookup
* delete rrddimvar and rrdfamily index
* remove rrdsetvar; now all variables are in RRDVARs inside hosts and charts
* added /api/v1/variable that resolves a variable the same way alerts do
* remove rrdcalc from eval
* remove debug code
* remove duplicate assignment
* Fix memory leak
* all alert variables are now handled by alert_variable_lookup() and EVAL is now independent of alerts
* hide all internal structures of EVAL
* Enable -Wformat flag
Signed-off-by: Tasos Katsoulas <tasos@netdata.cloud>
* Adjust binding for calculation, warning, critical
* Remove unused macro
* Update config hash id
* use the right info and summary in alerts log
* use synchronous queries for alerts
* Handle cases when config_hash_id is missing from health_log
* remove deadlock from health worker
* parsing to json payload for health alert prototypes
* cleaner parsing and avoiding memory leaks in case of duplicate members in json
* fix left-over rename of function
* Keep original lookup field to send to the cloud
Cleanup / rename function to store config
Remove unused DEFINEs, functions
* Use ac->lookup
* link jobs to the host when the template is registered; do not accept running a function without a host
* full dyncfg support for health alerts, except action TEST
* working dyncfg additions, updates, removals
* fixed missing source, wrong status updates
* add alerts by type, component, classification, recipient and module at the /api/v2/alerts endpoint
* fix dyncfg unittest
* rename functions
* generalize the json-c parser macros and move them to libnetdata
* report progress when enabling and disabling dyncfg templates
* moved rrdcalc and rrdvar to health
* update alarms
* added schema for alerts; separated alert_action_options from rrdr_options; restructured the json payload for alerts
* enable parsed json alerts; allow sending back accepted but disabled
* added format_version for alerts payload; enables/disables status now is also inheritted by the status of the rules; fixed variable names in json output
* remove the RRDHOST pointer from DYNCFG
* Fix command field submitted to the cloud
* do not send updates to creation requests, for DYNCFG jobs
---------
Signed-off-by: Tasos Katsoulas <tasos@netdata.cloud>
Co-authored-by: Stelios Fragkakis <52996999+stelfrag@users.noreply.github.com>
Co-authored-by: Tasos Katsoulas <tasos@netdata.cloud>
Co-authored-by: ilyam8 <ilya@netdata.cloud>
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* Consistent naming of STORAGE_INSTANCE instances.
Replace usages of `db_instance` and `instance` with
`si`.
* Rename array `storage_metrics_groups[tier]` to `smg[tier]`
* Rename db_metric_handle to smh
* Rename instances of `storage_engine_query_handle` to `seqh`.
* Rename instances of STORAGE_ENGINE_BACKEND to `seb`.
* Rename instances of STORAGE_COLLECT_HANDLE to `sch`.
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Reuse ML load prepared statement and release resources on each batch load
Fix parameter to ML model load to be in seconds not usec
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* Convert a db to WAL with auto vacuum
* Use single sqlite configuration function
* Remove UNUSED statements
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* reset the RRDHOST_FLAG_PENDING_OBSOLETE_CHARTS flag
* do rrdset_free even when in dbengine mode
* remove RRDSET_FLAG_ARCHIVED
* remove commented line
* use is_available_for_viewers
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* Add a chart that groups anomaly rate by chart type.
* Use type_anomaly_rate for context.
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* Unconditionally delete very old models.
* Rebase origin/master
* Use the training threads to prune old models.
To keep performance in check, we shedule the
pruning whenever the number of successfully
completed transactions is a multiple of 64.
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Init chart
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This reverts commit 440bd51e08fdfa2a4daa191fb68643456028a753.
dbengine was still being used for non-zero tiers
even on non-dbengine modes.
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* 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.
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* remove rd->update_every
* reduce amount of memory for RRDDIM
* reorgnize rrddim->db entries
* optimize rrdset and statsd
* optimize dictionaries
* RW_SPINLOCK for dictionaries
* fix codeql warning
* rw_spinlock improvements
* remove obsolete assertion
* fix crash on health_alarm_log_process()
* use RW_SPINLOCK for AVL trees
* add RW_SPINLOCK read/write trylock
* pgc and mrg now use rw_spinlocks; cache line optimizations for mrg
* thread tag of dbegnine init
* append created datafile, lockless
* make DOUBLE_LINKED_LIST_APPEND_ITEM_UNSAFE friendly for lockless use
* thread cancelability in spinlocks; optimize thread cancelability management
* introduce a JudyL to index datafiles and use it during queries to quickly find the relevant files
* use the last timestamp of each journal file for indexing
* when the previous cannot be found, start from the beginning
* add more stats to PDC to trace routing easier
* rename spinlock functions
* fix for spinlock renames
* revert statsd socket statistics to size_t
* turn fatal into internal_fatal()
* show candidates always
* show connected status and connection attempts
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* dummy streaming function
* expose global functions upstream
* separate function for pushing global functions
* add missing conditions
* allow streaming function to run async
* started internal API for functions
* cache host retention and expose it to /api/v2/nodes
* internal API for function table fields; more progress on streaming status
* abstracted and unified rrdhost status
* port old coverity warning fix - although it is not needed
* add ML information to rrdhost status
* add ML capability to streaming to signal the transmission of ML information; added ML information to host status
* protect host->receiver
* count metrics and instances per host
* exposed all inbound and outbound streaming
* fix for ML status and dependency of DATA_WITH_ML to INTERPOLATED, not IEEE754
* update ML dummy
* added all fields
* added streaming group by and cleaned up accepted values by cloud
* removed type
* Revert "removed type"
This reverts commit faae4177e603d4f85b7433f33f92ef3ccd23976e.
* added context to db summary
* new /api/v2/nodes schema
* added ML type
* change default function charts
* log to trace new capa
* add more debug
* removed debugging code
* retry on receive interrupted read; respect sender reconnect delay in all cases
* set disconnected host flag and manipulate localhost child count atomically, inside set/clear receiver
* fix infinite loop
* send_to_plugin() now has a spinlock to ensure that only 1 thread is writing to the plugin/child at the same time
* global cloud_status() call
* cloud should be a section, since it will contain error information
* put cloud capabilities into cloud
* aclk status in /api/v2 agents sections
* keep aclk_connection_counter
* updates on /api/v2/nodes
* final /api/v2/nodes and addition of /api/v2/nodes_instances
* parametrize all /api/v2/xxx output to control which info is outputed per endpoint
* always accept nodes selector
* st needs to be per instance, not per node
* fix merging of contexts; fix cups plugin priorities
* add after and before parameters to /api/v2/contexts/nodes/nodes_instances/q
* give each libuv worker a unique id
* aclk http_api_v2 version 4
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* Add two functions that allow someone to start/stop ML.
* Shutdown ML after stopping collector services
* Remove unnecessary mutex from ml charts.
There's already a spinlock that protects the
chart when a someone calls rrdset_done().
* Use a lightweight spinlock instead of a mutext for ML dimensions.
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Fix CodeQL warning "Multiplication result may overflow 'unsigned int' before it is converted to 'size_t'"
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* Add suppression options.
* Silence noisy dimensions
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Fix coverity issues 384022, 384021, 383825
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* Pass DB connection in db_execute()
* Add support for loading/saving models.
* Fix ML stats when no training takes place.
* Make model flushing batch size configurable.
* Delete unused function
* Update ML config.
* Restore threshold for logs/period.
* Rm whitespace.
* Add missing dummy function.
* Update function call arguments
* Guard transactions with a lock when flushing ML models.
* Mark dimensions with loaded models as trained.
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* Add acquire/release support for RRDSET
* Release/acquire RRDSET when training.
* Fix function name in log message.
* Use proper function name to get the hostname.
* Add acquire/release for hosts and skip training orphan/obsolete hosts/charts.
* Fix variable name
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This is a temporary change until we figure out
why sqlite degrades the performance of training
threads significantly. To keep the number of
changes to a minimum, a connection is still
opened/closed when initializing/finalizing the
ML component.
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* Apply ML changes again.
The ML changes in 003df5f2 wheere reverted with
556bdad9 because we were partially initializing
ML even when it was explicitly disabled in
netdata.conf, causing the agent to crash on
startup.
* Do not start/stop ML threads when ML is disabled.
* Restore default config settings.
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* Revert "Revert "Use static thread-pool for training. (#14702)" (#14782)"
This reverts commit 5321ca8d1ef8d974a6a2b2128ca8804de6acb693.
* Model I/O.
* Minor changes
Meant to make debugging a crash issues easier
on cloud VMs:
- Less verbose logging
- Higher logging history
- Modify installer to use debug info by default
* Fix ML initialization order.
* read lock hosts when running detection.
* Revert debugging changes.
* Update ml/Config.cc
Co-authored-by: Andrew Maguire <andrewm4894@gmail.com>
---------
Co-authored-by: Andrew Maguire <andrewm4894@gmail.com>
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* configure extent cache size
* workers can now execute up to 10 jobs in a run, boosting query prep and extent reads
* fix dispatched and executing counters
* boost to the max
* increase libuv worker threads
* query prep always get more prio than extent reads; stop processing in batch when dbengine is queue is critical
* fix accounting of query prep
* inlining of time-grouping functions, to speed up queries with billions of points
* make switching based on a local const variable
* print one pending contexts loading message per iteration
* inlined store engine query API
* inlined storage engine data collection api
* inlined all storage engine query ops
* eliminate and inline data collection ops
* simplified query group-by
* more error handling
* optimized partial trimming of group-by queries
* preparative work to support multiple passes of group-by
* more preparative work to support multiple passes of group-by (accepts multiple group-by params)
* unified query timings
* unified query timings - weights endpoint
* query target is no longer a static thread variable - there is a list of cached query targets, each of which of freed every 1000 queries
* fix query memory accounting
* added summary.dimension[].pri and sorted summary.dimensions based on priority and then name
* limit max ACLK WEB response size to 30MB
* the response type should be text/plain
* more preparative work for multiple group-by passes
* create functions for generating group by keys, ids and names
* multiple group-by passes are now supported
* parse group-by options array also with an index
* implemented percentage-of-instance group by function
* family is now merged in multi-node contexts
* prevent uninitialized use
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This reverts commit 5046e034212c008557dd014196b6f6204eda24b2.
Will re-apply once we investigate an issue that occurs during
the shutdown of the agent.
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* Use static thread-pool for training.
* Add missing function definition
* disable training stats chart
* Add config option to explicitly enable ML stats charts.
---------
Co-authored-by: Costa Tsaousis <costa@netdata.cloud>
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* Refactor ML code.
This commit introduces only non-functional changes.
Originally, the C++ code exposed C functions to be called
from the rest of the agent. When we migrated from C++ to C,
we did not eliminate these wrapper functions to make the
PR easier to understand and keep the total LOC low.
This commit removes the wrapper functions and "reclaims" the
`ml_` prefix that we used for the public API of the old
implementation.
Also, the nlohmann Json library has been removed and its
functionality was replaced with the equivalent Json functionality
that we added in libnetdata's BUFFERs.
* Remove missing headers from build systems.
* Fix CMake build.
* rrddim_free is outside of rrd "internals" now.
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* Port ML from C++ to C.
Pretty much everything is a non-functional change, ie.
the functionality is identical to the one provided
by the existing implementation that is written in C++.
Performance-wise, this implementation:
- Eliminates/reduces the number of allocations and
deallocations we have to do for training/detection,
- Uses just a single thread to perform detection for
*all* the hosts (ie. reduces the number of required
threads by 50% on parents), and
- Allows training, prediction and detection of
dimensions that have an update_every that is
different from that of the localhost.
The only C++ functionality that we still use
is vectors, because they make our life easier
and they are pretty much a requirement imposed
by dlib.
* Remove profile.plugin
It was useful only for testing during development.
* Limit logs to 200 lines per period
* Properly generate ml_info in /api/v1/info endpoint.
* Remove resource usage charts since we use worker charts.
* Use a temporary to make linters happy.
* Rebase.
* Fix builds that have ML functionality disabled.
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optimization (#14493)
* first work on standardizing json formatting
* renamed old grouping to time_grouping and added group_by
* add dummy functions to enable compilation
* buffer json api work
* jsonwrap opening with buffer_json_X() functions
* cleanup
* storage for quotes
* optimize buffer printing for both numbers and strings
* removed ; from define
* contexts json generation using the new json functions
* fix buffer overflow at unit test
* weights endpoint using new json api
* fixes to weights endpoint
* check buffer overflow on all buffer functions
* do synchronous queries for weights
* buffer_flush() now resets json state too
* content type typedef
* print double values that are above the max 64-bit value
* str2ndd() can now parse values above UINT64_MAX
* faster number parsing by avoiding double calculations as much as possible
* faster number parsing
* faster hex parsing
* accurate printing and parsing of double values, even for very large numbers that cannot fit in 64bit integers
* full printing and parsing without using library functions - and related unit tests
* added IEEE754 streaming capability to enable streaming of double values in hex
* streaming and replication to transfer all values in hex
* use our own str2ndd for set2
* remove subnormal check from ieee
* base64 encoding for numbers, instead of hex
* when increasing double precision, also make sure the fractional number printed is aligned to the wanted precision
* str2ndd_encoded() parses all encoding formats, including integers
* prevent uninitialized use
* /api/v1/info using the new json API
* Fix error when compiling with --disable-ml
* Remove redundant 'buffer_unittest' declaration
* Fix formatting
* Fix formatting
* Fix formatting
* fix buffer unit test
* apps.plugin using the new JSON API
* make sure the metrics registry does not accept negative timestamps
* do not allow pages with negative timestamps to be loaded from db files; do not accept pages with negative timestamps in the cache
* Fix more formatting
---------
Co-authored-by: Stelios Fragkakis <52996999+stelfrag@users.noreply.github.com>
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* first commit - untested
* fix wrong begin command
* added set v2 too
* debug to log stream buffer
* debug to log stream buffer
* faster streaming printing
* mark charts and dimensions as collected
* use stream points even if sender is not enabled
* comment out stream debug log
* parse null as nan
* custom begin v2
* custom set v2; replication now copies the anomalous flag too
* custom end v2
* enabled stream log test
* renamed to BEGIN2, SET2, END2
* dont mix up replay and v2 members in user object
* fix typo
* cleanup
* support to v2 to v1 proxying
* mark updated dimensions as such
* do not log unknown flags
* comment out stream debug log
* send also the chart id on BEGIN2, v2 to v2
* update the data collections counter
* v2 values are transferred in hex
* faster hex parsing
* a little more generic hex and dec printing and parsing
* fix hex parsing
* minor optimization in dbengine api
* turn debugging into info message
* generalized the timings tracking, so that it can be used in more places
* commented out debug info
* renamed conflicting variable with macro
* remove wrong edits
* integrated ML and added cleanup in case parsing is interrupted
* disable data collection locking during v2
* cleanup stale ML locks; send updated chart variables during v2; add info to find stale locks
* inject an END2 between repeated BEGIN2 from rrdset_done()
* test: remove lockless single-threaded logic from dictionary and aral and apply the right acquire/release memory order to reference counters
* more fine grained dictionary atomics
* remove unecessary return values
* pointer validation under NETDATA_DICTIONARY_VALIDATE_POINTERS
* Revert "pointer validation under NETDATA_DICTIONARY_VALIDATE_POINTERS"
This reverts commit 846cdf2713e2a7ee2ff797f38db11714228800e9.
* Revert "remove unecessary return values"
This reverts commit 8c87d30f4d86f0f5d6b4562cf74fe7447138bbff.
* Revert "more fine grained dictionary atomics"
This reverts commit 984aec4234a340d197d45239ff9a10fd479fcf3c.
* Revert "test: remove lockless single-threaded logic from dictionary and aral and apply the right acquire/release memory order to reference counters"
This reverts commit c460b3d0ad497d2641bd0ea1d63cec7c052e74e4.
* Apply again "pointer validation under NETDATA_DICTIONARY_VALIDATE_POINTERS" while keeping the improved atomic operations.
This reverts commit f158d009
* fix last commit
* fix last commit again
* optimizations in dbengine
* do not send anomaly bit on non-supporting agents (send it when the INTERPOLATED capability is available)
* break long empty-points-loops in rrdset_done()
* decide page alignment on new page allocation, not on every point collected
* create max size pages but no smaller than 1/3
* Fix compilation when --disable-ml is specified
* Return false
* fixes for NETDATA_LOG_REPLICATION_REQUESTS
* added compile option NETDATA_WITHOUT_WORKERS_LATENCY
* put timings in BEGIN2, SET2, END2
* isolate begin2 ml
* revert repositioning data collection lock
* fixed multi-threading of statistics
* do not lookup dimensions all the time if they come in the same order
* update used on iteration, not on every points; also do better error handling
---------
Co-authored-by: Stelios Fragkakis <52996999+stelfrag@users.noreply.github.com>
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* cancel ml threads on shutdown and join them on host free
* mark them not running before joining them
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* count open cache pages refering to datafile
* eliminate waste flush attempts
* remove eliminated variable
* journal v2 scanning split functions
* avoid locking open cache for a long time while migrating to journal v2
* dont acquire datafile for the loop; disable thread cancelability while a query is running
* work on datafile acquiring
* work on datafile deletion
* work on datafile deletion again
* logs of dbengine should start with DBENGINE
* thread specific key for queries to check if a query finishes without a finalize
* page_uuid is not used anymore
* Cleanup judy traversal when building new v2
Remove not needed calls to metric registry
* metric is 8 bytes smaller; timestamps are protected with a spinlock; timestamps in metric are now always coherent
* disable checks for invalid time-ranges
* Remove type from page details
* report scanning time
* remove infinite loop from datafile acquire for deletion
* remove infinite loop from datafile acquire for deletion again
* trace query handles
* properly allocate array of dimensions in replication
* metrics cleanup
* metrics registry uses arrayalloc
* arrayalloc free should be protected by lock
* use array alloc in page cache
* journal v2 scanning fix
* datafile reference leaking hunding
* do not load metrics of future timestamps
* initialize reasons
* fix datafile reference leak
* do not load pages that are entirely overlapped by others
* expand metric retention atomically
* split replication logic in initialization and execution
* replication prepare ahead queries
* replication prepare ahead queries fixed
* fix replication workers accounting
* add router active queries chart
* restore accounting of pages metadata sources; cleanup replication
* dont count skipped pages as unroutable
* notes on services shutdown
* do not migrate to journal v2 too early, while it has pending dirty pages in the main cache for the specific journal file
* do not add pages we dont need to pdc
* time in range re-work to provide info about past and future matches
* finner control on the pages selected for processing; accounting of page related issues
* fix invalid reference to handle->page
* eliminate data collection handle of pg_lookup_next
* accounting for queries with gaps
* query preprocessing the same way the processing is done; cache now supports all operations on Judy
* dynamic libuv workers based on number of processors; minimum libuv workers 8; replication query init ahead uses libuv workers - reserved ones (3)
* get into pdc all matching pages from main cache and open cache; do not do v2 scan if main cache and open cache can satisfy the query
* finner gaps calculation; accounting of overlapping pages in queries
* fix gaps accounting
* move datafile deletion to worker thread
* tune libuv workers and thread stack size
* stop netdata threads gradually
* run indexing together with cache flush/evict
* more work on clean shutdown
* limit the number of pages to evict per run
* do not lock the clean queue for accesses if it is not possible at that time - the page will be moved to the back of the list during eviction
* economies on flags for smaller page footprint; cleanup and renames
* eviction moves referenced pages to the end of the queue
* use murmur hash for indexing partition
* murmur should be static
* use more indexing partitions
* revert number of partitions to number of cpus
* cancel threads first, then stop services
* revert default thread stack size
* dont execute replication requests of disconnected senders
* wait more time for services that are exiting gradually
* fixed last commit
* finer control on page selection algorithm
* default stacksize of 1MB
* fix formatting
* fix worker utilization going crazy when the number is rotating
* avoid buffer full due to replication preprocessing of requests
* support query priorities
* add count of spins in spinlock when compiled with netdata internal checks
* remove prioritization from dbengine queries; cache now uses mutexes for the queues
* hot pages are now in sections judy arrays, like dirty
* align replication queries to optimal page size
* during flushing add to clean and evict in batches
* Revert "during flushing add to clean and evict in batches"
This reverts commit 8fb2b69d068499eacea6de8291c336e5e9f197c7.
* dont lock clean while evicting pages during flushing
* Revert "dont lock clean while evicting pages during flushing"
This reverts commit d6c82b5f40aeba86fc7aead062fab1b819ba58b3.
* Revert "Revert "during flushing add to clean and evict in batches""
This reverts commit ca7a187537fb8f743992700427e13042561211ec.
* dont cross locks during flushing, for the fastest flushes possible
* low-priority queries load pages synchronously
* Revert "low-priority queries load pages synchronously"
This reverts commit 1ef2662ddcd20fe5842b856c716df134c42d1dc7.
* cache uses spinlock again
* during flushing, dont lock the clean queue at all; each item is added atomically
* do smaller eviction runs
* evict one page at a time to minimize lock contention on the clean queue
* fix eviction statistics
* fix last commit
* plain should be main cache
* event loop cleanup; evictions and flushes can now happen concurrently
* run flush and evictions from tier0 only
* remove not needed variables
* flushing open cache is not needed; flushing protection is irrelevant since flushing is global for all tiers; added protection to datafiles so that only one flusher can run per datafile at any given time
* added worker jobs in timer to find the slow part of it
* support fast eviction of pages when all_of_them is set
* revert default thread stack size
* bypass event loop for dispatching read extent commands to workers - send them directly
* Revert "bypass event loop for dispatching read extent commands to workers - send them directly"
This reverts commit 2c08bc5bab12881ae33bc73ce5dea03dfc4e1fce.
* cache work requests
* minimize memory operations during flushing; caching of extent_io_descriptors and page_descriptors
* publish flushed pages to open cache in the thread pool
* prevent eventloop requests from getting stacked in the event loop
* single threaded dbengine controller; support priorities for all queries; major cleanup and restructuring of rrdengine.c
* more rrdengine.c cleanup
* enable db rotation
* do not log when there is a filter
* do not run multiple migration to journal v2
* load all extents async
* fix wrong paste
* report opcodes waiting, works dispatched, works executing
* cleanup event loop memory every 10 minutes
* dont dispatch more work requests than the number of threads available
* use the dispatched counter instead of the executing counter to check if the worker thread pool is full
* remove UV_RUN_NOWAIT
* replication to fill the queues
* caching of extent buffers; code cleanup
* caching of pdc and pd; rework on journal v2 indexing, datafile creation, database rotation
* single transaction wal
* synchronous flushing
* first cancel the threads, then signal them to exit
* caching of rrdeng query handles; added priority to query target; health is now low prio
* add priority to the missing points; do not allow critical priority in queries
* offload query preparation and routing to libuv thread pool
* updated timing charts for the offloaded query preparation
* caching of WALs
* accounting for struct caches (buffers); do not load extents with invalid sizes
* protection against memory booming during replication due to the optimal alignment of pages; sender thread buffer is now also reset when the circular buffer is reset
* also check if the expanded before is not the chart later updated time
* also check if the expanded before is not after the wall clock time of when the query started
* Remove unused variable
* replication to queue less queries; cleanup of internal fatals
* Mark dimension to be updated async
* caching of extent_page_details_list (epdl) and datafile_extent_offset_list (deol)
* disable pgc stress test, under an ifdef
* disable mrg stress test under an ifdef
* Mark chart and host labels, host info for async check and store in the database
* dictionary items use arrayalloc
* cache section pages structure is allocated with arrayalloc
* Add function to wakeup the aclk query threads and check for exit
Register function to be called during shutdown after signaling the service to exit
* parallel preparation of all dimensions of queries
* be more sensitive to enable streaming after replication
* atomically finish chart replication
* fix last commit
* fix last commit again
* fix last commit again again
* fix last commit again again again
* unify the normalization of retention calculation for collected charts; do not enable streaming if more than 60 points are to be transferred; eliminate an allocation during replication
* do not cancel start streaming; use high priority queries when we have locked chart data collection
* prevent starvation on opcodes execution, by allowing 2% of the requests to be re-ordered
* opcode now uses 2 spinlocks one for the caching of allocations and one for the waiting queue
* Remove check locks and NETDATA_VERIFY_LOCKS as it is not needed anymore
* Fix bad memory allocation / cleanup
* Cleanup ACLK sync initialization (part 1)
* Don't update metric registry during shutdown (part 1)
* Prevent crash when dashboard is refreshed and host goes away
* Mark ctx that is shutting down.
Test not adding flushed pages to open cache as hot if we are shutting down
* make ML work
* Fix compile without NETDATA_INTERNAL_CHECKS
* shutdown each ctx independently
* fix completion of quiesce
* do not update shared ML charts
* Create ML charts on child hosts.
When a parent runs a ML for a child, the relevant-ML charts
should be created on the child host. These charts should use
the parent's hostname to differentiate multiple parents that might
run ML for a child.
The only exception to this rule is the training/prediction resource
usage charts. These are created on the localhost of the parent host,
because they provide information specific to said host.
* check new ml code
* first save the database, then free all memory
* dbengine prep exit before freeing all memory; fixed deadlock in cache hot to dirty; added missing check to query engine about metrics without any data in the db
* Cleanup metadata thread (part 2)
* increase refcount before dispatching prep command
* Do not try to stop anomaly detection threads twice.
A separate function call has been added to stop anomaly detection threads.
This commit removes the left over function calls that were made
internally when a host was being created/destroyed.
* Remove allocations when smoothing samples buffer
The number of dims per sample is always 1, ie. we are training and
predicting only individual dimensions.
* set the orphan flag when loading archived hosts
* track worker dispatch callbacks and threadpool worker init
* make ML threads joinable; mark ctx having flushing in progress as early as possible
* fix allocation counter
* Cleanup metadata thread (part 3)
* Cleanup metadata thread (part 4)
* Skip metadata host scan when running unittest
* unittest support during init
* dont use all the libuv threads for queries
* break an infinite loop when sleep_usec() is interrupted
* ml prediction is a collector for several charts
* sleep_usec() now makes sure it will never loop if it passes the time expected; sleep_usec() now uses nanosleep() because clock_nanosleep() misses signals on netdata exit
* worker_unregister() in netdata threads cleanup
* moved pdc/epdl/deol/extent_buffer related code to pdc.c and pdc.h
* fixed ML issues
* removed engine2 directory
* added dbengine2 files in CMakeLists.txt
* move query plan data to query target, so that they can be exposed by in jsonwrap
* uniform definition of query plan according to the other query target members
* event_loop should be in daemon, not libnetdata
* metric_retention_by_uuid() is now part of the storage engine abstraction
* unify time_t variables to have the suffix _s (meaning: seconds)
* old dbengine statistics become "dbengine io"
* do not enable ML resource usage charts by default
* unify ml chart families, plugins and modules
* cleanup query plans from query target
* cleanup all extent buffers
* added debug info for rrddim slot to time
* rrddim now does proper gap management
* full rewrite of the mem modes
* use library functions for madvise
* use CHECKSUM_SZ for the checksum size
* fix coverity warning about the impossible case of returning a page that is entirely in the past of the query
* fix dbengine shutdown
* keep the old datafile lock until a new datafile has been created, to avoid creating multiple datafiles concurrently
* fine tune cache evictions
* dont initialize health if the health service is not running - prevent crash on shutdown while children get connected
* rename AS threads to ACLK[hostname]
* prevent re-use of uninitialized memory in queries
* use JulyL instead of JudyL for PDC operations - to test it first
* add also JulyL files
* fix July memory accounting
* disable July for PDC (use Judy)
* use the function to remove datafiles from linked list
* fix july and event_loop
* add july to libnetdata subdirs
* rename time_t variables that end in _t to end in _s
* replicate when there is a gap at the beginning of the replication period
* reset postponing of sender connections when a receiver is connected
* Adjust update every properly
* fix replication infinite loop due to last change
* packed enums in rrd.h and cleanup of obsolete rrd structure members
* prevent deadlock in replication: replication_recalculate_buffer_used_ratio_unsafe() deadlocking with replication_sender_delete_pending_requests()
* void unused variable
* void unused variables
* fix indentation
* entries_by_time calculation in VD was wrong; restored internal checks for checking future timestamps
* macros to caclulate page entries by time and size
* prevent statsd cleanup crash on exit
* cleanup health thread related variables
Co-authored-by: Stelios Fragkakis <52996999+stelfrag@users.noreply.github.com>
Co-authored-by: vkalintiris <vasilis@netdata.cloud>
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* Add profile.plugin
Creates the specified number of charts/dimensions, and supports
backfilling with pseudo-historical data.
* Bump
* Remove wrongly merged line.
* Use the number of models specified from the config section.
* Add option to consult all ML models.
* Remove profiling option consuming all models.
* Add underscore after chart name prefix.
* prediction -> dimensions chart
* reorder funcs
* Split charts across types with correct priority
* Ignore training request when chart is under replication.
* Track global number of models consulted.
* Cleanup config.
* initial readme updates
* fix readme
* readme
* Fix function definition when ML is disabled.
* Add dummy ml_chart_update_{begin,end}
* Remove profile_plugin
* Define chart priorities under collectors/all.h
* s/curr_t/current_time/
* Use libnetdata's lock/thread wrappers.
* Fix autotools & cmake builds.
* Delete ML dimensions & charts.
* Let users of buffer preprocessing to handle memory.
* Add separate API calls to start/stop ML threads.
Co-authored-by: Andrew Maguire <andrewm4894@gmail.com>
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(#14172)
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* Add profile.plugin
Creates the specified number of charts/dimensions, and supports
backfilling with pseudo-historical data.
* Bump
* Remove wrongly merged line.
* Use the number of models specified from the config section.
* Add option to consult all ML models.
* Remove profiling option consuming all models.
* Add underscore after chart name prefix.
* prediction -> dimensions chart
* reorder funcs
* Split charts across types with correct priority
* Ignore training request when chart is under replication.
* Track global number of models consulted.
* Cleanup config.
* initial readme updates
* fix readme
* readme
* Fix function definition when ML is disabled.
* Add dummy ml_chart_update_{begin,end}
* Remove profile_plugin
* Define chart priorities under collectors/all.h
* s/curr_t/current_time/
Co-authored-by: Andrew Maguire <andrewm4894@gmail.com>
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* initial implementation of QUERY_TARGET
* rrd2rrdr() interface
* rrddim_find_best_tier_for_timeframe() ported
* added dimension filtering
* added db object in query target
* rrd2rrdr() ported
* working on formatters
* working on jsonwrapper
* finally, it compiles...
* 1st run without crashes
* query planer working
* cleanup old code
* review changes
* fix also changing data collection frequency
* fix signess
* fix rrdlabels and dimension ordering
* fixes
* remove unused variable
* ml should accept NULL response from rrd2rrdr()
* number formatting fixes
* more number formatting fixes
* more number formatting fixes
* support mc parallel queries
* formatting and cleanup
* added rrd2rrdr_legacy() as a simplified interface to run a query
* make sure rrdset_find_natural_update_every_for_timeframe() returns a value
* make signed comparisons
* weights endpoint using rrdcontexts
* fix for legacy db modes and cleanup
* fix for chart_ids and remove AR chart from weights endpoint
* Ignore command if not initialized yet
* remove unused members
* properly initialize window
* code cleanup - rrddim linked list is gone; rrdset rwlock is gone too
* reviewed RRDR.internal members
* eliminate unnecessary members of QUERY_TARGET
* more complete query ids; more detailed information on aborted queries
* properly terminate option strings
* query id contains group_options which is controlled by users, so escaping is necessary
* tense in query id
* tense in query id - again
* added the remaining query options to the query id
* Expose hidden option to the dimension
* use the hidden flag when loading context dimensions
* Specify table alias for option
* dont update chart last access time, unless at least a dimension of the chart will be queried
Co-authored-by: Stelios Fragkakis <52996999+stelfrag@users.noreply.github.com>
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(#13810)
* overload libc memory allocators with custom ones to trace all allocations
* grab libc pointers for external c plugins
* use -ldl when necessary; fallback to work without dlsym when it is not available
* initialize global variable
* add optional dl libs
* dynamically link every library function when needed for the first time
* prevent crashes on musl libc
* another attempt
* dont dereference function
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