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* evict, a page at a time * 4 replication ahead requests per replication thread * added per job average timings for workers and dbengine query router * debug statement to find what is slow * yield the processor to avoid monopolizing the cache * test more page sizes in aral * more polite journal v2 indexing * pulse macros for atomics * added profile so that users can control the defaults of the agent * fix windows warnings; journal v2 generation yields the processor for every page * replication threads are 1/3 of the cores and they are synchronous * removed the default from the list of profiles * turn pgc locks into macros to have tracing on the functions that called them * log the size of madvise() when failing * more work on profiles * restore batch cache evictions, but lower the batch size significantly * do not spin while searching for pages in the cache - handle currently being deleted pages within the search logic itself * remove bottleneck in epdl processing while merging extents * allocate outside the lock * rw spinlock implemented without spinlocks; both spinlocks and r/w spinlocks now support exponential backoff while waiting * apply max sleep to spinlocks * tune replication * r/w spinlock prefers writers again, but this time recursive readers are bypassing the writer wait * tuning of rw spinlock * more tuning of the rw spinlock * configure glibc arenas based on profile * moving global variables into nd_profile * do not accept sockets that have not received any data; once sockets with data have been accepted, check they are not closed already before processing them * poll_events is now using nd_poll(), resulting in vast simplification of the code; static web files are now served inline resulting in another simplification of the web server logic (was required because epoll does not support normal files) * startup fixes * added debug info to poll_fd_close() * closed sockets are automatically removed from epoll(), by the kernel * fix for mrg acquired and referenced going negative * fixed bug in mrg cleanup, not deleting metrics that do not have retention * monitor strings index size * strings memory chart is now stacked * replication: do not lock data collection when running in batches * explicitly set socket flags for sender and receiver * normalize the event loop for sending data (receiver and sender) * normalize the event loop for receiving data (receiver and sender) * check all sender nodes every half a second * fix bug on sender, not enabling sending * first cleanup then destroy * normalize nd_poll() to handle all possible events * cleanup * normalize socket helper functions * fixed warnings on alpine * fix for POLLRDHUP missing * fix cleanup on shutdown * added detailed replication summary * moved logs to INFO * prevent crash when sender is not there * madvise _dontfork() should not be used with aral, madvise_dontdump() is only used for file backed maps * fix wording * fix log wording * split replication receiver and sender; add logs to find missing replication requests * fix compilation * fixed bug in backfilling, having garbage for counters - malloc instead of calloc * backfilling logs if it misses callbacks * log replication rcv and replication snd in node info * remove contention from aral_page_free_lock(), but having 2 free lists per page, one for incoming and another for available items and moving incoming to available when the available is empty - this allows aral_mallocz() and aral_freez() to operate concurrently on the same page * fix internal checks * log errors for all replication receiver exceptions * removed wrong error log * prevent health crashing * cleanup logs that are irrelevant with the missing replication events * replication tracking: added replication tracking to figure out how replication missed requests * fix compilation and fix bug on spawn server cleanup calling uv_shutdown at exit * merged receiver initialization * prevent compilation warnings * fix race condition in nd_poll() returning events for deleted fds * for user queries, prepare as many queries as half the processors * fix log * add option dont_dump to netdata_mmap and aral_create * add logging missing receiver and sender charts * reviewed judy memory accounting; adbstracted flags handling to ensure they all work the same way; introduced atomic_flags_set_and_clear() to set and clear atomic flags with a single atomic operation * improvement(go.d/nats): add server_id label (#19280) * Regenerate integrations docs (#19281) Co-authored-by: ilyam8 <22274335+ilyam8@users.noreply.github.com> * [ci skip] Update changelog and version for nightly build: v2.1.0-30-nightly. * docs: improve on-prem troubleshooting readability (#19279) * docs: improve on-prem troubleshooting readability * Apply suggestions from code review --------- Co-authored-by: Fotis Voutsas <fotis@netdata.cloud> * improvement(go.d/nats): add leafz metrics (#19282) * Regenerate integrations docs (#19283) Co-authored-by: ilyam8 <22274335+ilyam8@users.noreply.github.com> * [ci skip] Update changelog and version for nightly build: v2.1.0-34-nightly. * fix go.d/nats tests (#19284) * improvement(go.d/nats): add basic jetstream metrics (#19285) * Regenerate integrations docs (#19286) Co-authored-by: ilyam8 <22274335+ilyam8@users.noreply.github.com> * [ci skip] Update changelog and version for nightly build: v2.1.0-38-nightly. * bump dag req jinja version (#19287) * more strict control on replication counters * do not flush the log files - to cope with the rate * [ci skip] Update changelog and version for nightly build: v2.1.0-40-nightly. * fix aral on windows * add waiting queue to sender commit, to allow the streaming thread go fast and put replication threads in order * use the receiver tid * fix(netdata-updater.sh): remove commit_check_file directory (#19288) * receiver now has periodic checks too (like the senders have) * fixed logs * replication periodic checks: resending of chart definitions * strict checking on rrdhost state id * replication periodic checks: added for receivers * shorter replication status messages * do not log about ieee754 * receiver logs replication traffic without RSET * object state: rrdhost_state_id has become object_state in libnetdata so that it can be reused * fixed metadata; added journal message id for netdata fatal messages * replication: undo bypassing the pipeline * receiver cleanup: free all structures at the end, to ensure there are not crashes while cleaning up * replication periodic checks: do not run it on receivers, when there is replication in progress * nd_log: prevent fatal statements from recursing * replication tracking: disabled (compile time) * fix priority and log * disconnect on stale replication - detected on both sender and receiver * update our tagline * when sending data from within opcode handling do not remove the receiver/sender * improve interactivity of streaming sockets * log the replication cmd counters on disconnect and reset them on reconnect * rrdhost object state activate/deactivate should happen in set/clear receiver * remove writer preference from rw spinlocks * show the value in health logs * move counter to the right place to avoid double counting replication commands * do not run opcodes when running inline * fix replication log messages * make IoT harmless for the moment --------- Co-authored-by: Ilya Mashchenko <ilya@netdata.cloud> Co-authored-by: Netdata bot <43409846+netdatabot@users.noreply.github.com> Co-authored-by: ilyam8 <22274335+ilyam8@users.noreply.github.com> Co-authored-by: netdatabot <bot@netdata.cloud> Co-authored-by: Fotis Voutsas <fotis@netdata.cloud>
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stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 603 132.88 L 599.5 125.88 L 603 127.63 L 606.5 125.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 473 572 L 473 546 L 733 546 L 733 572" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 473 572 L 473 754 L 733 754 L 733 572" fill="#ffffff" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 473 572 L 733 572" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><g fill="#000000" font-family="Helvetica" text-anchor="middle" font-size="12px"><text x="602.5" y="563.5">clients_cache</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-477-577-252-26-0)" font-size="12px"><text x="478.5" y="589.5">pid_t pid</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-477-603-252-26-0)" font-size="12px"><text x="478.5" y="615.5">struct web_client *used</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-477-629-252-26-0)" font-size="12px"><text x="478.5" y="641.5">size_t used_count</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-477-655-252-26-0)" font-size="12px"><text x="478.5" y="667.5">struct web_client *avail</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-477-681-252-26-0)" font-size="12px"><text x="478.5" y="693.5">size_t avail_count</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-477-707-252-26-0)" font-size="12px"><text x="478.5" y="719.5">size_t reused</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-477-733-252-26-0)" font-size="12px"><text x="478.5" y="745.5">size_t allocated</text></g><path d="M 733 611 L 753 611 L 753 10 L 168 10 L 168 23.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 168 28.88 L 164.5 21.88 L 168 23.63 L 171.5 21.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><g transform="translate(724.5,12.5)"><switch><foreignObject style="overflow:visible;" pointer-events="all" width="57" height="11" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display: inline-block; font-size: 11px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; vertical-align: top; white-space: nowrap; text-align: center;"><div xmlns="http://www.w3.org/1999/xhtml" style="display:inline-block;text-align:inherit;text-decoration:inherit;background-color:#ffffff;">linked list of</div></div></foreignObject><text x="29" y="11" fill="#000000" text-anchor="middle" font-size="11px" font-family="Helvetica">linked list of</text></switch></g><path d="M 733 663 L 753 663 L 753 10 L 168 10 L 168 23.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 168 28.88 L 164.5 21.88 L 168 23.63 L 171.5 21.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><g transform="translate(724.5,38.5)"><switch><foreignObject style="overflow:visible;" pointer-events="all" width="57" height="11" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display: inline-block; font-size: 11px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; vertical-align: top; white-space: nowrap; text-align: center;"><div xmlns="http://www.w3.org/1999/xhtml" style="display:inline-block;text-align:inherit;text-decoration:inherit;background-color:#ffffff;">linked list of</div></div></foreignObject><text x="29" y="11" fill="#000000" text-anchor="middle" font-size="11px" font-family="Helvetica">linked list of</text></switch></g><path d="M 833 108 L 833 82 L 1073 82 L 1073 108" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 833 108 L 833 394 L 1073 394 L 1073 108" fill="#ffffff" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 833 108 L 1073 108" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><g fill="#000000" font-family="Helvetica" text-anchor="middle" font-size="12px"><text x="952.5" y="99.5">listen_sockets</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-837-113-232-26-0)" font-size="12px"><text x="838.5" y="125.5">struct config *config</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-837-139-232-26-0)" font-size="12px"><text x="838.5" y="151.5">const char *config_section</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-837-165-232-26-0)" font-size="12px"><text x="838.5" y="177.5">const char *default_bind_to</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-837-191-232-26-0)" font-size="12px"><text x="838.5" y="203.5">uint16_t default_port</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-837-217-232-26-0)" font-size="12px"><text x="838.5" y="229.5">int backlog</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-837-243-232-26-0)" font-size="12px"><text x="838.5" y="255.5">size_t opened</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-837-269-232-26-0)" font-size="12px"><text x="838.5" y="281.5">size_t failed</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-837-295-232-26-0)" font-size="12px"><text x="838.5" y="307.5">int fds[MAX_LISTEN_FDS]</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-837-321-232-26-0)" font-size="12px"><text x="838.5" y="333.5">int *fds_names[MAX_LISTEN_FDS]</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-837-347-232-26-0)" font-size="12px"><text x="838.5" y="359.5">int fds_types[MAX_LISTEN_FDS]</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-837-373-232-26-0)" font-size="12px"><text x="838.5" y="385.5">int fds_families[MAX_LISTEN_FDS]</text></g><path d="M 1173 56 L 1173 30 L 1403 30 L 1403 56" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 1173 56 L 1173 498 L 1403 498 L 1403 56" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 1173 56 L 1403 56" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><g fill="#000000" font-family="Helvetica" text-anchor="middle" font-size="12px"><text x="1287.5" y="47.5">POLLINFO</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1177-61-222-26-0)" font-size="12px"><text x="1178.5" y="73.5">POLLJOB *p</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1177-87-222-26-0)" font-size="12px"><text x="1178.5" y="99.5">size_t slot</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1177-113-222-26-0)" font-size="12px"><text x="1178.5" y="125.5">int fd</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1177-139-222-26-0)" font-size="12px"><text x="1178.5" y="151.5">int socktype</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1177-165-222-26-0)" font-size="12px"><text x="1178.5" y="177.5">char *remote_ip</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1177-191-222-26-0)" font-size="12px"><text x="1178.5" y="203.5">char *remote_port</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1177-217-222-26-0)" font-size="12px"><text x="1178.5" y="229.5">time_t connected_t</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1177-243-222-26-0)" font-size="12px"><text x="1178.5" y="255.5">time_t last_received_t</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1177-269-222-26-0)" font-size="12px"><text x="1178.5" y="281.5">time_t last_sent_t</text></g><g fill="#000000" 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clip-path="url(#mx-clip-1177-451-222-26-0)" font-size="12px"><text x="1178.5" y="463.5">void *data</text></g><path d="M 1403 485 L 1423 485 L 1423 10 L 1279 10 L 1279 22.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 1279 27.88 L 1275.5 20.88 L 1279 22.63 L 1282.5 20.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1177-477-222-26-0)" font-size="12px"><text x="1178.5" y="489.5">struct pollinfo *next</text></g><path d="M 1523 121 L 1523 95 L 1773 95 L 1773 121" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 1523 121 L 1523 615 L 1773 615 L 1773 121" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 1523 121 L 1773 121" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><g fill="#000000" font-family="Helvetica" text-anchor="middle" font-size="12px"><text x="1647.5" y="112.5">POLLJOB</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1527-126-242-26-0)" font-size="12px"><text x="1528.5" y="138.5">size_t slots</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1527-152-242-26-0)" font-size="12px"><text x="1528.5" y="164.5">size_t used</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1527-178-242-26-0)" font-size="12px"><text x="1528.5" y="190.5">size_t min</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1527-204-242-26-0)" font-size="12px"><text x="1528.5" y="216.5">size_t max</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1527-230-242-26-0)" font-size="12px"><text x="1528.5" y="242.5">size_t limit</text></g><g fill="#000000" font-family="Helvetica" clip-path="url(#mx-clip-1527-256-242-26-0)" font-size="12px"><text x="1528.5" y="268.5">time_t complete_request_timeout</text></g><g 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