..
	Copyright (c) 2017-2020 Varnish Software AS
	SPDX-License-Identifier: BSD-2-Clause
	See LICENSE file for full text of license

..
	This is *NOT* a RST file but the syntax has been chosen so
	that it may become an RST file at some later date.

.. vinyl_vsc_begin::	main
	:oneliner:	Main counters
	:order:		10
	:sumfunction:	wrk_wrk wrk pool

.. vinyl_vsc:: summs
	:level:	debug
	:group: wrk
	:oneliner:	stat summ operations

	Number of times per-thread statistics were summed into the
	global counters.

.. vinyl_vsc:: uptime
	:oneliner:	Child process uptime
	:format:	duration

	How long the child process has been running.

.. vinyl_vsc:: sess_conn
	:group: wrk
	:oneliner:	Sessions accepted

	Count of sessions successfully accepted

.. vinyl_vsc:: sess_fail
	:group: wrk
	:oneliner:	Session accept failures

	Count of failures to accept TCP connection.

	This counter is the sum of the sess_fail_* counters, which
	give more detailed information.

.. vinyl_vsc:: sess_fail_econnaborted
	:group: wrk
	:oneliner:	Session accept failures: connection aborted

	Detailed reason for sess_fail: Connection aborted by the
	client, usually harmless.

.. vinyl_vsc:: sess_fail_eintr
	:group: wrk
	:oneliner:	Session accept failures: interrupted system call

	Detailed reason for sess_fail: The accept() call was
	interrupted, usually harmless

.. vinyl_vsc:: sess_fail_emfile
	:group: wrk
	:oneliner:	Session accept failures: too many open files

	Detailed reason for sess_fail: No file descriptor was
	available. Consider raising RLIMIT_NOFILE (see ulimit -n).

.. vinyl_vsc:: sess_fail_ebadf
	:group: wrk
	:oneliner:	Session accept failures: bad file descriptor

	Detailed reason for sess_fail: The listen socket file
	descriptor was invalid. Should never happen.

.. vinyl_vsc:: sess_fail_enomem
	:group: wrk
	:oneliner:	Session accept failures: not enough memory

	Detailed reason for sess_fail: Most likely insufficient
	socket buffer memory. Should never happen

.. vinyl_vsc:: sess_fail_other
	:group: wrk
	:oneliner:	Session accept failures: other

	Detailed reason for sess_fail: neither of the above, see
	SessError log (vinyllog -g raw -i SessError).

.. vinyl_vsc:: client_req_400
	:group: wrk
	:oneliner:	Client requests received, subject to 400 errors

	400 means we couldn't make sense of the request, it was malformed
	in some drastic way.

.. vinyl_vsc:: client_req_417
	:group: wrk
	:oneliner:	Client requests received, subject to 417 errors

	417 means that something went wrong with an Expect: header.

.. vinyl_vsc:: client_req
	:group: wrk
	:oneliner:	Good client requests received

	The count of parseable client requests seen.

.. vinyl_vsc:: esi_req
	:group: wrk
	:oneliner:	ESI subrequests

	Number of ESI subrequests made.

.. vinyl_vsc:: cache_hit
	:group: wrk
	:oneliner:	Cache hits

	Count of cache hits.  A cache hit indicates that an object has been
	delivered to a client without fetching it from a backend server.

.. vinyl_vsc:: cache_hit_grace
	:group: wrk
	:oneliner:	Cache grace hits

	Count of cache hits with grace. A cache hit with grace is a cache
	hit where the object is expired. Note that such hits are also
	included in the cache_hit counter.

.. vinyl_vsc:: cache_hitpass
	:group: wrk
	:oneliner:	Cache hits for pass.

	Count of hits for pass. A cache hit for pass indicates that
	Vinyl Cache is going to pass the request to the backend and
	this decision has been cached in it self. This counts how
	many times the cached decision is being used.

.. vinyl_vsc:: cache_hitmiss
	:group: wrk
	:oneliner:	Cache hits for miss.

	Count of hits for miss. A cache hit for miss indicates that
	Vinyl Cache is going to proceed as for a cache miss without
	request coalescing, and this decision has been cached. This
	counts how many times the cached decision is being used.

.. vinyl_vsc:: cache_miss
	:group: wrk
	:oneliner:	Cache misses

	Count of misses. A cache miss indicates the object was fetched from
	the backend before delivering it to the client.

.. vinyl_vsc:: beresp_uncacheable
   :group: wrk
   :oneliner: Uncacheable backend responses

   Count of backend responses considered uncacheable.

.. vinyl_vsc:: beresp_shortlived
   :group: wrk
   :oneliner: Shortlived objects

   Count of objects created with ttl+grace+keep shorter than the 'shortlived'
   runtime parameter.

.. vinyl_vsc:: backend_conn
	:oneliner:	Backend conn. success

	How many backend connections have successfully been established.

.. vinyl_vsc:: backend_unhealthy
	:oneliner:	Backend conn. not attempted


.. vinyl_vsc:: backend_busy
	:oneliner:	Backend conn. too many


.. vinyl_vsc:: backend_fail
	:oneliner:	Backend conn. failures


.. vinyl_vsc:: backend_reuse
	:oneliner:	Backend conn. reuses

	Count of backend connection reuses. This counter is increased
	whenever we reuse a recycled connection.

.. vinyl_vsc:: backend_recycle
	:oneliner:	Backend conn. recycles

	Count of backend connection recycles. This counter is increased
	whenever we have a keep-alive connection that is put back into the
	pool of connections. It has not yet been used, but it might be,
	unless the backend closes it.

.. vinyl_vsc:: backend_retry
	:oneliner:	Backend conn. retry

.. vinyl_vsc:: backend_wait
	:oneliner:	Backend conn. waited in queue for a connection

	Count of backend requests that waited in a backend_wait queue for
	a connection to become available.  The size of a backend wait queue
	is defined by the backend wait_limit property.  The wait queue is
	only used when max_connections to the backend are in use.

.. vinyl_vsc:: backend_wait_fail
	:oneliner:	Backend conn. waited in queue and did not get a connection

	Count of backend requests that waited in a backend_wait queue for
	a connection to become available and did not get one (timed out).
	The maximum time to wait in the queue is defined by the backend
	wait_timeout property.

.. vinyl_vsc:: fetch_head
	:group: wrk
	:oneliner:	Fetch no body (HEAD)

	beresp with no body because the request is HEAD.

.. vinyl_vsc:: fetch_length
	:group: wrk
	:oneliner:	Fetch with Length

	beresp.body with Content-Length.

.. vinyl_vsc:: fetch_chunked
	:group: wrk
	:oneliner:	Fetch chunked

	beresp.body with Chunked.

.. vinyl_vsc:: fetch_eof
	:group: wrk
	:oneliner:	Fetch EOF

	beresp.body with EOF.

.. vinyl_vsc:: fetch_bad
	:group: wrk
	:oneliner:	Fetch bad T-E

	beresp.body length/fetch could not be determined.

.. vinyl_vsc:: fetch_none
	:group: wrk
	:oneliner:	Fetch no body

	beresp.body empty

.. vinyl_vsc:: fetch_1xx
	:group: wrk
	:oneliner:	Fetch no body (1xx)

	beresp with no body because of 1XX response.

.. vinyl_vsc:: fetch_204
	:group: wrk
	:oneliner:	Fetch no body (204)

	beresp with no body because of 204 response.

.. vinyl_vsc:: fetch_304
	:group: wrk
	:oneliner:	Fetch no body (304)

	beresp with no body because of 304 response.

.. vinyl_vsc:: fetch_failed
	:group: wrk
	:oneliner:	Fetch failed (all causes)

	beresp fetch failed.

.. vinyl_vsc:: bgfetch_no_thread
	:group: wrk
	:oneliner:	Background fetch failed (no thread)

	A bgfetch triggered by a grace hit failed, no thread available.

.. vinyl_vsc:: pools
	:type:	gauge
	:oneliner:	Number of thread pools

	Number of thread pools. See also parameter thread_pools. NB: Presently
	pools cannot be removed once created.

.. vinyl_vsc:: threads
	:type:	gauge
	:oneliner:	Total number of threads

	Number of threads in all pools. See also parameters thread_pools,
	thread_pool_min and thread_pool_max.

.. vinyl_vsc:: threads_limited
	:oneliner:	Threads hit max

	Number of times more threads were needed, but limit was reached in
	a thread pool. See also parameter thread_pool_max.

.. vinyl_vsc:: threads_created
	:oneliner:	Threads created

	Total number of threads created in all pools.

.. vinyl_vsc:: threads_destroyed
	:oneliner:	Threads destroyed

	Total number of threads destroyed in all pools.

.. vinyl_vsc:: threads_failed
	:oneliner:	Thread creation failed

	Number of times creating a thread failed. See VSL::Debug for
	diagnostics. See also parameter thread_fail_delay.

.. vinyl_vsc:: thread_queue_len
	:type:	gauge
	:oneliner:	Length of session queue

	Length of session queue waiting for threads. NB: Only updates once
	per second. See also parameter thread_queue_limit.

.. vinyl_vsc:: busy_sleep
	:group: wrk
	:oneliner:	Number of requests sent to sleep on busy objhdr

	Number of requests sent to sleep without a worker thread because
	they found a busy object.

.. vinyl_vsc:: busy_wakeup
	:group: wrk
	:oneliner:	Number of requests woken after sleep on busy objhdr

	Number of requests taken off the busy object sleep list and rescheduled.

.. vinyl_vsc:: busy_killed
	:oneliner:	Number of requests killed after sleep on busy objhdr

	Number of requests killed from the busy object sleep list due to
	lack of resources.

.. vinyl_vsc:: sess_queued
	:group: pool
	:oneliner:	Sessions queued for thread

	Number of times session was queued waiting for a thread. See also
	parameter thread_queue_limit.

.. vinyl_vsc:: sess_dropped
	:group: pool
	:oneliner:	Sessions dropped for thread

	Number of times an HTTP/1 session was dropped because the queue was
	too long already. See also parameter thread_queue_limit.

.. vinyl_vsc:: req_dropped
	:group: pool
	:oneliner:	Requests dropped

	Number of times an HTTP/2 stream was refused because the queue was
	too long already. See also parameter thread_queue_limit.

.. vinyl_vsc:: req_reset
	:group: wrk
	:oneliner:	Requests reset

	Number of times a client left before the VCL processing of its
	requests completed. For HTTP/2 sessions, either the stream was
	reset by an RST_STREAM frame from the client, or a stream or
	connection error occurred.

.. vinyl_vsc:: n_object
	:type:	gauge
	:group: wrk
	:oneliner:	object structs made

	Approximate number of HTTP objects (headers + body, if present) in
	the cache.

.. vinyl_vsc:: n_vampireobject
	:type:	gauge
	:level:	diag
	:group: wrk
	:oneliner:	unresurrected objects

	Number of unresurrected objects

.. vinyl_vsc:: n_objectcore
	:type:	gauge
	:group: wrk
	:oneliner:	objectcore structs made

	Approximate number of object metadata elements in the cache. Each
	object needs an objectcore, extra objectcores are for hit-for-miss,
	hit-for-pass and busy objects.

.. vinyl_vsc:: n_objecthead
	:type:	gauge
	:group: wrk
	:oneliner:	objecthead structs made

	Approximate number of different hash entries in the cache.

.. vinyl_vsc:: n_backend
	:type:	gauge
	:oneliner:	Number of backends

	Number of backends known to us.

.. vinyl_vsc:: n_expired
	:oneliner:	Number of expired objects

	Number of objects that expired from cache because of old age.

.. vinyl_vsc:: n_superseded
	:level:	diag
	:oneliner:	Number of superseded objects

	Number of times an object was superseded by a new one.

.. vinyl_vsc:: n_lru_nuked
	:oneliner:	Number of LRU nuked objects

	How many objects have been forcefully evicted from storage to make
	room for a new object.

.. vinyl_vsc:: n_lru_moved
	:level:	diag
	:oneliner:	Number of LRU moved objects

	Number of move operations done on the LRU list.

.. vinyl_vsc:: n_lru_limited
	:oneliner:	Reached nuke_limit

	Number of times more storage space were needed, but limit was reached in
	a nuke_limit. See also parameter nuke_limit.

.. vinyl_vsc:: losthdr
	:oneliner:	HTTP header overflows


.. vinyl_vsc:: s_sess
	:group: wrk
	:oneliner:	Total sessions seen


.. vinyl_vsc:: n_pipe
	:type:	gauge
	:oneliner:	Number of ongoing pipe sessions


.. vinyl_vsc:: pipe_limited
	:group: wrk
	:oneliner:	Pipes hit pipe_sess_max

	Number of times more pipes were needed, but the limit was reached. See
	also parameter pipe_sess_max.


.. vinyl_vsc:: s_pipe
	:group: wrk
	:oneliner:	Total pipe sessions seen


.. vinyl_vsc:: s_pass
	:group: wrk
	:oneliner:	Total pass-ed requests seen


.. vinyl_vsc:: s_fetch
	:group: wrk
	:oneliner:	Total backend fetches initiated

	Total backend fetches initiated, including background fetches.

.. vinyl_vsc:: s_bgfetch
	:group: wrk
	:oneliner:	Total backend background fetches initiated


.. vinyl_vsc:: s_synth
	:group: wrk
	:oneliner:	Total synthetic responses made


.. vinyl_vsc:: s_req_hdrbytes
	:format:	bytes
	:group:		wrk
	:oneliner:	Request header bytes

	Total request header bytes received

.. vinyl_vsc:: s_req_bodybytes
	:format:	bytes
	:group:		wrk
	:oneliner:	Request body bytes

	Total request body bytes received

.. vinyl_vsc:: s_resp_hdrbytes
	:format:	bytes
	:group:		wrk
	:oneliner:	Response header bytes

	Total response header bytes transmitted

.. vinyl_vsc:: s_resp_bodybytes
	:format:	bytes
	:group:		wrk
	:oneliner:	Response body bytes

	Total response body bytes transmitted

.. vinyl_vsc:: s_pipe_hdrbytes
	:format:	bytes
	:group:		wrk
	:oneliner:	Pipe request header bytes

	Total request bytes received for piped sessions

.. vinyl_vsc:: s_pipe_in
	:format:	bytes
	:group:		wrk
	:oneliner:	Piped bytes from client

	Total number of bytes forwarded from clients in pipe sessions

.. vinyl_vsc:: s_pipe_out
	:format:	bytes
	:group:		wrk
	:oneliner:	Piped bytes to client

	Total number of bytes forwarded to clients in pipe sessions

.. vinyl_vsc:: transit_stored
	:format:	bytes
	:group:		wrk
	:oneliner:	Stored uncacheable body bytes

	Total number of transient body bytes written to storage as if they
	were reusable like a cacheable backend response. Transient objects
	are stored for a single transaction, this includes uncacheable backend
	responses, synthetic responses and client requests.

.. vinyl_vsc:: transit_buffered
	:format:	bytes
	:group:		wrk
	:oneliner:	Buffered uncacheable response body bytes

	Total number of uncacheable responses body bytes forwarded using a
	fixed buffer allocated from storage. This behavior can be enabled by
	the 'transit_buffer' parameter, or the 'beresp.transit_buffer' VCL
	variable.

.. vinyl_vsc:: sess_closed
	:group: wrk
	:oneliner:	Session Closed

.. vinyl_vsc:: sess_closed_err
	:oneliner:	Session Closed with error

	Total number of sessions closed with errors. See sc_* diag counters
	for detailed breakdown

.. vinyl_vsc:: sess_readahead
	:group: wrk
	:oneliner:	Session Read Ahead

.. vinyl_vsc:: sess_herd
	:level:	diag
	:group: wrk
	:oneliner:	Session herd

	Number of times the timeout_linger triggered

.. vinyl_vsc:: sc_rem_close
	:level:	diag
	:oneliner:	Session OK  REM_CLOSE

	Number of session closes with REM_CLOSE (Client Closed)

.. vinyl_vsc:: sc_req_close
	:level:	diag
	:oneliner:	Session OK  REQ_CLOSE

	Number of session closes with REQ_CLOSE (Client requested close)

.. vinyl_vsc:: sc_req_http10
	:level:	diag
	:oneliner:	Session Err REQ_HTTP10

	Number of session closes with Error REQ_HTTP10 (Proto < HTTP/1.1)

.. vinyl_vsc:: sc_rx_bad
	:level:	diag
	:oneliner:	Session Err RX_BAD

	Number of session closes with Error RX_BAD (Received bad req/resp)

.. vinyl_vsc:: sc_rx_body
	:level:	diag
	:oneliner:	Session Err RX_BODY

	Number of session closes with Error RX_BODY (Failure receiving req.body)

.. vinyl_vsc:: sc_rx_junk
	:level:	diag
	:oneliner:	Session Err RX_JUNK

	Number of session closes with Error RX_JUNK (Received junk data)

.. vinyl_vsc:: sc_rx_overflow
	:level:	diag
	:oneliner:	Session Err RX_OVERFLOW

	Number of session closes with Error RX_OVERFLOW (Received buffer overflow)

.. vinyl_vsc:: sc_rx_timeout
	:level:	diag
	:oneliner:	Session Err RX_TIMEOUT

	Number of session closes with Error RX_TIMEOUT (Receive timeout)

.. vinyl_vsc:: sc_rx_close_idle
	:level:	diag
	:oneliner:	Session Err RX_CLOSE_IDLE

	Number of session closes with Error RX_CLOSE_IDLE:
	timeout_idle has been exceeded while waiting for a
	client request.

.. vinyl_vsc:: sc_tx_pipe
	:level:	diag
	:oneliner:	Session OK  TX_PIPE

	Number of session closes with TX_PIPE (Piped transaction)

.. vinyl_vsc:: sc_tx_error
	:level:	diag
	:oneliner:	Session Err TX_ERROR

	Number of session closes with Error TX_ERROR (Error transaction)

.. vinyl_vsc:: sc_tx_eof
	:level:	diag
	:oneliner:	Session OK  TX_EOF

	Number of session closes with TX_EOF (EOF transmission)

.. vinyl_vsc:: sc_resp_close
	:level:	diag
	:oneliner:	Session OK  RESP_CLOSE

	Number of session closes with RESP_CLOSE (Backend/VCL requested close)

.. vinyl_vsc:: sc_overload
	:level:	diag
	:oneliner:	Session Err OVERLOAD

	Number of session closes with Error OVERLOAD (Out of some resource)

.. vinyl_vsc:: sc_pipe_overflow
	:level:	diag
	:oneliner:	Session Err PIPE_OVERFLOW

	Number of session closes with Error PIPE_OVERFLOW (Session pipe overflow)

.. vinyl_vsc:: sc_range_short
	:level:	diag
	:oneliner:	Session Err RANGE_SHORT

	Number of session closes with Error RANGE_SHORT (Insufficient data for range)

.. vinyl_vsc:: sc_req_http20
	:level:	diag
	:oneliner:	Session Err REQ_HTTP20

	Number of session closes with Error REQ_HTTP20 (HTTP2 not accepted)

.. vinyl_vsc:: sc_vcl_failure
	:level:	diag
	:oneliner:	Session Err VCL_FAILURE

	Number of session closes with Error VCL_FAILURE (VCL failure)

.. vinyl_vsc:: sc_rapid_reset
       :level: diag
       :oneliner:      Session Err RAPID_RESET

       Number of times we failed an http/2 session because it hit its
       configured limits for the number of permitted rapid stream
       resets.

.. vinyl_vsc:: sc_bankrupt
	:level: diag
	:oneliner:      Session Err BANKRUPT

	Number of times we failed an http/2 session because all the streams
	were waiting for their windows to be credited when h2_window_timeout
	triggered.

.. vinyl_vsc:: client_resp_500
	:level: diag
	:group: wrk
	:oneliner:	Delivery failed due to insufficient workspace.

	Number of times we failed a response due to running out of
	workspace memory during delivery.

.. vinyl_vsc:: ws_backend_overflow
	:group: wrk
	:oneliner: workspace_backend overflows

	Number of times we ran out of space in workspace_backend.

.. vinyl_vsc:: ws_client_overflow
	:group: wrk
	:oneliner: workspace_client overflows

	Number of times we ran out of space in workspace_client.

.. vinyl_vsc:: ws_thread_overflow
	:group: wrk
	:oneliner: workspace_thread overflows

	Number of times we ran out of space in workspace_thread.

.. vinyl_vsc:: ws_session_overflow
	:oneliner: workspace_session overflows

	Number of times we ran out of space in workspace_session.

.. vinyl_vsc:: shm_records
	:level:	diag
	:oneliner:	SHM records

	Number of log records written to the shared memory log.


.. vinyl_vsc:: shm_writes
	:level:	diag
	:oneliner:	SHM writes

	Number of individual writes to the shared memory log. A single
	write may batch multiple records for buffered tasks.


.. vinyl_vsc:: shm_flushes
	:level:	diag
	:oneliner:	SHM flushes due to overflow

	Number of writes performed before the end of a buffered task
	because adding a record to a batch would exceed vsl_buffer.

.. vinyl_vsc:: shm_cont
	:level:	diag
	:oneliner:	SHM lock contention

	Number of times a write had to wait for the lock.


.. vinyl_vsc:: shm_cycles
	:level:	diag
	:oneliner:	SHM cycles through VSL space

	Number of times a write of log records would reach past the end
	of the shared memory log, cycling back to the beginning.


.. vinyl_vsc:: shm_bytes
	:level:	diag
	:format: bytes
	:oneliner:	SHM bytes

	Number of bytes written to the shared memory log.


.. vinyl_vsc:: backend_req
	:oneliner:	Backend requests made


.. vinyl_vsc:: n_vcl
	:type:	gauge
	:oneliner:	Number of loaded VCLs in total


.. vinyl_vsc:: n_vcl_avail
	:type:	gauge
	:level:	diag
	:oneliner:	Number of VCLs available


.. vinyl_vsc:: n_vcl_discard
	:type:	gauge
	:level:	diag
	:oneliner:	Number of discarded VCLs


.. vinyl_vsc:: vcl_fail
	:group: wrk
	:oneliner:	VCL failures

	Count of failures which prevented VCL from completing.

.. vinyl_vsc:: bans
	:type:	gauge
	:group: ban_mtx
	:oneliner:	Count of bans

	Number of all bans in system, including bans superseded by newer
	bans and bans already checked by the ban-lurker.

.. vinyl_vsc:: bans_completed
	:type:	gauge
	:level:	diag
	:group: ban_mtx
	:oneliner:	Number of bans marked 'completed'

	Number of bans which are no longer active, either because they got
	checked by the ban-lurker or superseded by newer identical bans.

.. vinyl_vsc:: bans_obj
	:type:	gauge
	:level:	diag
	:group: ban_mtx
	:oneliner:	Number of bans using obj.*

	Number of bans which use obj.* variables.  These bans can possibly
	be washed by the ban-lurker.

.. vinyl_vsc:: bans_req
	:type:	gauge
	:level:	diag
	:group: ban_mtx
	:oneliner:	Number of bans using req.*

	Number of bans which use req.* variables.  These bans cannot be
	washed by the ban-lurker.

.. vinyl_vsc:: bans_added
	:level:	diag
	:group: ban_mtx
	:oneliner:	Bans added

	Counter of bans added to ban list.

.. vinyl_vsc:: bans_deleted
	:level:	diag
	:group: ban_mtx
	:oneliner:	Bans deleted

	Counter of bans deleted from ban list.

.. vinyl_vsc:: bans_tested
	:level:	diag
	:group: ban_mtx
	:oneliner:	Bans tested against objects (lookup)

	Count of how many bans and objects have been tested against each
	other during hash lookup.

.. vinyl_vsc:: bans_obj_killed
	:level:	diag
	:group: ban_mtx
	:oneliner:	Objects killed by bans (lookup)

	Number of objects killed by bans during object lookup.

.. vinyl_vsc:: bans_lurker_tested
	:level:	diag
	:group: ban_mtx
	:oneliner:	Bans tested against objects (lurker)

	Count of how many bans and objects have been tested against each
	other by the ban-lurker.

.. vinyl_vsc:: bans_tests_tested
	:level:	diag
	:group: ban_mtx
	:oneliner:	Ban tests tested against objects (lookup)

	Count of how many tests and objects have been tested against each
	other during lookup. 'ban req.url == foo && req.http.host == bar'
	counts as one in 'bans_tested' and as two in 'bans_tests_tested'

.. vinyl_vsc:: bans_lurker_tests_tested
	:level:	diag
	:group: ban_mtx
	:oneliner:	Ban tests tested against objects (lurker)

	Count of how many tests and objects have been tested against each
	other by the ban-lurker. 'ban req.url == foo && req.http.host ==
	bar' counts as one in 'bans_tested' and as two in 'bans_tests_tested'

.. vinyl_vsc:: bans_lurker_obj_killed
	:level:	diag
	:group: ban_mtx
	:oneliner:	Objects killed by bans (lurker)

	Number of objects killed by the ban-lurker.

.. vinyl_vsc:: bans_lurker_obj_killed_cutoff
	:level:	diag
	:group: ban_mtx
	:oneliner:	Objects killed by bans for cutoff (lurker)

	Number of objects killed by the ban-lurker to keep the number of
	bans below ban_cutoff.

.. vinyl_vsc:: bans_dups
	:level:	diag
	:group: ban_mtx
	:oneliner:	Bans superseded by other bans

	Count of bans replaced by later identical bans.

.. vinyl_vsc:: bans_lurker_contention
	:level:	diag
	:group: ban_mtx
	:oneliner:	Lurker gave way for lookup

	Number of times the ban-lurker had to wait for lookups.

.. vinyl_vsc:: bans_persisted_bytes
	:type:	gauge
	:format:	bytes
	:level:	diag
	:group: ban_mtx
	:oneliner:	Bytes used by the persisted ban lists

	Number of bytes used by the persisted ban lists.

.. vinyl_vsc:: bans_persisted_fragmentation
	:type:	gauge
	:format:	bytes
	:level:	diag
	:group: ban_mtx
	:oneliner:	Extra bytes in persisted ban lists due to fragmentation

	Number of extra bytes accumulated through dropped and completed
	bans in the persistent ban lists.

.. vinyl_vsc:: n_purges
	:oneliner:	Number of purge operations executed


.. vinyl_vsc:: n_obj_purged
	:oneliner:	Number of purged objects


.. vinyl_vsc:: exp_mailed
	:level:	diag
	:oneliner:	Number of objects mailed to expiry thread

	Number of objects mailed to expiry thread for handling.

.. vinyl_vsc:: exp_received
	:level:	diag
	:oneliner:	Number of objects received by expiry thread

	Number of objects received by expiry thread for handling.

.. vinyl_vsc:: hcb_nolock
	:group: wrk
	:level:	debug
	:oneliner:	HCB Lookups without lock


.. vinyl_vsc:: hcb_lock
	:level:	debug
	:oneliner:	HCB Lookups with lock


.. vinyl_vsc:: hcb_insert
	:level:	debug
	:oneliner:	HCB Inserts


.. vinyl_vsc:: esi_errors
	:level:	diag
	:oneliner:	ESI parse errors (unlock)


.. vinyl_vsc:: esi_warnings
	:level:	diag
	:oneliner:	ESI parse warnings (unlock)


.. vinyl_vsc:: vmods
	:type:	gauge
	:oneliner:	Loaded VMODs


.. vinyl_vsc:: n_gzip
	:oneliner:	Gzip operations


.. vinyl_vsc:: n_gunzip
	:oneliner:	Gunzip operations


.. vinyl_vsc:: n_test_gunzip
	:oneliner:	Test gunzip operations

	Those operations occur when Vinyl Cache receives a compressed
	object from a backend. They are done to verify the gzip
	stream while it's inserted in storage.


.. vinyl_vsc:: http1_iovs_flush
	:oneliner:	Premature iovec flushes

	Number of additional writes performed on HTTP1 connections
	because the number of IO vectors was too small to submit all
	possible IO in one go. This number is configured through the
	``http1_iovs`` parameter for client connections and implicitly
	defined by the amount of free workspace for backend
	connections.

.. vinyl_vsc:: http1_absolute_form
	:oneliner:	Requests with absolute form request target

	Number of requests for which an absolute form request target (e.g.
	http://example.com/ or https://example.com/) was handled. The https://
	scheme is handled unless the feature ``https_scheme`` is disabled (see
	RUN TIME PARAMETERS in `vinyld(1)`).

	See also ReqTarget in `vsl(7)`. This counter is approximately correct.

.. vinyl_vsc_end::	main
