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Very slow Nextcloud sync ?php-fpm issue [Solved]
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tabanus
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Joined: 11 Jun 2004
Posts: 626
Location: UK

PostPosted: Fri May 04, 2018 4:59 pm    Post subject: Very slow Nextcloud sync ?php-fpm issue [Solved] Reply with quote

Since moving from www-server/lighttpd-1.4.45 to www-server/lighttpd-1.4.45-r1 my Nextcloud server has become very slow, such that the clients time out when trying to sync larger files. Reverting to www-server/lighttpd-1.4.45 hasn't helped.

I'm pretty sure this is a fastcgi issue because I have seen errors in the php-fpm log.

lighttpd and php error logs (the server was rebooted at 17.09 today):

Code:
cat /var/log/lighttpd/error.log
2018-05-04 03:10:01: (server.c.1534) logfiles cycled UID = 0 PID = 18895
2018-05-04 10:00:11: (mod_fastcgi.c.2424) unexpected end-of-file (perhaps the fastcgi process died): pid: 0 socket: tcp:127.0.0.1:9000
2018-05-04 10:00:11: (mod_fastcgi.c.3175) response not received, request sent: 468291 on socket: tcp:127.0.0.1:9000 for /nextcloud/remote.php?, closing connection
2018-05-04 10:00:18: (mod_fastcgi.c.2424) unexpected end-of-file (perhaps the fastcgi process died): pid: 0 socket: tcp:127.0.0.1:9000
2018-05-04 10:00:18: (mod_fastcgi.c.3175) response not received, request sent: 471354 on socket: tcp:127.0.0.1:9000 for /nextcloud/remote.php?, closing connection
2018-05-04 10:00:29: (mod_fastcgi.c.2424) unexpected end-of-file (perhaps the fastcgi process died): pid: 0 socket: tcp:127.0.0.1:9000
2018-05-04 10:00:29: (mod_fastcgi.c.3175) response not received, request sent: 561167 on socket: tcp:127.0.0.1:9000 for /nextcloud/remote.php?, closing connection
2018-05-04 10:00:30: (mod_fastcgi.c.2424) unexpected end-of-file (perhaps the fastcgi process died): pid: 0 socket: tcp:127.0.0.1:9000
2018-05-04 10:00:30: (mod_fastcgi.c.3175) response not received, request sent: 1329 on socket: tcp:127.0.0.1:9000 for /nextcloud/ocs/v2.php?format=json, closing connection
2018-05-04 10:00:30: (mod_fastcgi.c.2424) unexpected end-of-file (perhaps the fastcgi process died): pid: 0 socket: tcp:127.0.0.1:9000
2018-05-04 10:00:30: (mod_fastcgi.c.3175) response not received, request sent: 1626 on socket: tcp:127.0.0.1:9000 for /nextcloud/remote.php?, closing connection
2018-05-04 10:00:37: (mod_fastcgi.c.2723) establishing connection failed: Connection refused socket: tcp:127.0.0.1:9000
2018-05-04 10:00:37: (mod_fastcgi.c.2729) backend is overloaded; we'll disable it for 1 seconds and send the request to another backend instead: reconnects: 0 load: 1
2018-05-04 10:00:37: (mod_fastcgi.c.1689) all handlers for /nextcloud/remote.php? on .php are down.
2018-05-04 10:00:39: (mod_fastcgi.c.2686) fcgi-server re-enabled: tcp:127.0.0.1:9000
2018-05-04 10:00:43: (mod_fastcgi.c.2723) establishing connection failed: Connection refused socket: tcp:127.0.0.1:9000
2018-05-04 10:00:43: (mod_fastcgi.c.2729) backend is overloaded; we'll disable it for 1 seconds and send the request to another backend instead: reconnects: 0 load: 1
2018-05-04 10:00:43: (mod_fastcgi.c.1689) all handlers for /nextcloud/remote.php? on .php are down.
2018-05-04 10:00:45: (mod_fastcgi.c.2686) fcgi-server re-enabled: tcp:127.0.0.1:9000
2018-05-04 10:13:30: (server.c.1828) server stopped by UID = 0 PID = 9822
2018-05-04 10:13:31: (log.c.217) server started
2018-05-04 10:22:51: (server.c.1828) server stopped by UID = 0 PID = 10123
2018-05-04 10:22:52: (log.c.217) server started
2018-05-04 10:22:52: (mod_fastcgi.c.1159) the fastcgi-backend /usr/bin/php-fpm failed to start:
2018-05-04 10:22:52: (mod_fastcgi.c.1163) child exited with status 78 /usr/bin/php-fpm
2018-05-04 10:22:52: (mod_fastcgi.c.1166) If you're trying to run your app as a FastCGI backend, make sure you're using the FastCGI-enabled version.\nIf this is PHP on Gentoo, add 'fastcgi' to the USE flags.
2018-05-04 10:22:52: (mod_fastcgi.c.1518) [ERROR]: spawning fcgi failed.
2018-05-04 10:22:52: (server.c.1269) Configuration of plugins failed. Going down.
2018-05-04 10:25:02: (log.c.217) server started
2018-05-04 17:07:58: (server.c.1828) server stopped by UID = 0 PID = 12636
2018-05-04 17:07:59: (log.c.217) server started
2018-05-04 17:09:51: (server.c.1828) server stopped by UID = 0 PID = 12754
2018-05-04 17:12:45: (log.c.217) server started


Code:
cat /var/log/php-fpm.log | tail
[04-May-2018 10:00:45] NOTICE: configuration file /etc/php/fpm-php7.1/php-fpm.conf test is successful

[04-May-2018 10:00:45] NOTICE: fpm is running, pid 9219
[04-May-2018 10:00:45] NOTICE: ready to handle connections
[04-May-2018 17:09:59] NOTICE: Terminating ...
[04-May-2018 17:10:22] NOTICE: exiting, bye-bye!
[04-May-2018 17:12:51] NOTICE: configuration file /etc/php/fpm-php7.1/php-fpm.conf test is successful

[04-May-2018 17:12:51] NOTICE: fpm is running, pid 2980
[04-May-2018 17:12:51] NOTICE: ready to handle connections


No errors in /var/www/localhost/htdocs/nextcloud/data/nextcloud.log

Config files:

Code:
# cat /etc/lighttpd/mod_fastcgi.conf
###############################################################################
# mod_fastcgi.conf
# include'd by lighttpd.conf.
###############################################################################

server.modules += ("mod_fastcgi")
fastcgi.server = ( ".php" =>
  ( "localhost" =>
    (
      "host" => "127.0.0.1",
      "port" => "9000"
    )
  )
)


lighttpd config:

Code:
# grep  -v ^# /etc/lighttpd/lighttpd.conf | grep -v ^$
var.basedir  = "/var/www/localhost"
var.logdir   = "/var/log/lighttpd"
var.statedir = "/var/lib/lighttpd"
server.modules = (
    "mod_access",
    "mod_accesslog"
)
include "mime-types.conf"
server.username      = "lighttpd"
server.groupname     = "lighttpd"
server.document-root = var.basedir + "/htdocs"
server.pid-file      = "/var/run/lighttpd.pid"
server.errorlog      = var.logdir  + "/error.log"
server.indexfiles    = ("index.php", "index.html",
                                                "index.htm", "default.htm")
server.follow-symlink = "enable"
   server.stat-cache-engine = "fam"
static-file.exclude-extensions = (".php", ".pl", ".cgi", ".fcgi")
accesslog.filename   = var.logdir + "/access.log"
url.access-deny = ("~", ".inc")
$SERVER["socket"] == ":443" {
 ssl.engine    = "enable"
 ssl.pemfile   = "/etc/lighttpd/certs/lighttpd.pem"
}
include "mod_fastcgi.conf"


php-fpm config:

Code:
# grep  -v ^# /etc/php/fpm-php7.1/php-fpm.conf | grep -v ^$                           
;;;;;;;;;;;;;;;;;;;;;
; FPM Configuration ;
;;;;;;;;;;;;;;;;;;;;;
; All relative paths in this configuration file are relative to PHP's install
; prefix (/usr/lib64/php7.1). This prefix can be dynamically changed by using the
; '-p' argument from the command line.
;;;;;;;;;;;;;;;;;;
; Global Options ;
;;;;;;;;;;;;;;;;;;
[global]
; Pid file
; Note: the default prefix is /var
; Default Value: none
;pid = run/php-fpm.pid
; Error log file
; If it's set to "syslog", log is sent to syslogd instead of being written
; into a local file.
; Note: the default prefix is /var
; Default Value: log/php-fpm.log
error_log = /var/log/php-fpm.log
; syslog_facility is used to specify what type of program is logging the
; message. This lets syslogd specify that messages from different facilities
; will be handled differently.
; See syslog(3) for possible values (ex daemon equiv LOG_DAEMON)
; Default Value: daemon
;syslog.facility = daemon
; syslog_ident is prepended to every message. If you have multiple FPM
; instances running on the same server, you can change the default value
; which must suit common needs.
; Default Value: php-fpm
;syslog.ident = php-fpm
; Log level
; Possible Values: alert, error, warning, notice, debug
; Default Value: notice
;log_level = notice
; If this number of child processes exit with SIGSEGV or SIGBUS within the time
; interval set by emergency_restart_interval then FPM will restart. A value
; of '0' means 'Off'.
; Default Value: 0
;emergency_restart_threshold = 0
; Interval of time used by emergency_restart_interval to determine when
; a graceful restart will be initiated.  This can be useful to work around
; accidental corruptions in an accelerator's shared memory.
; Available Units: s(econds), m(inutes), h(ours), or d(ays)
; Default Unit: seconds
; Default Value: 0
;emergency_restart_interval = 0
; Time limit for child processes to wait for a reaction on signals from master.
; Available units: s(econds), m(inutes), h(ours), or d(ays)
; Default Unit: seconds
; Default Value: 0
;process_control_timeout = 0
; The maximum number of processes FPM will fork. This has been designed to control
; the global number of processes when using dynamic PM within a lot of pools.
; Use it with caution.
; Note: A value of 0 indicates no limit
; Default Value: 0
; process.max = 128
; Specify the nice(2) priority to apply to the master process (only if set)
; The value can vary from -19 (highest priority) to 20 (lowest priority)
; Note: - It will only work if the FPM master process is launched as root
;       - The pool process will inherit the master process priority
;         unless specified otherwise
; Default Value: no set
; process.priority = -19
; Send FPM to background. Set to 'no' to keep FPM in foreground for debugging.
; Default Value: yes
;daemonize = yes
; Set open file descriptor rlimit for the master process.
; Default Value: system defined value
;rlimit_files = 1024
; Set max core size rlimit for the master process.
; Possible Values: 'unlimited' or an integer greater or equal to 0
; Default Value: system defined value
;rlimit_core = 0
; Specify the event mechanism FPM will use. The following is available:
; - select     (any POSIX os)
; - poll       (any POSIX os)
; - epoll      (linux >= 2.5.44)
; - kqueue     (FreeBSD >= 4.1, OpenBSD >= 2.9, NetBSD >= 2.0)
; - /dev/poll  (Solaris >= 7)
; - port       (Solaris >= 10)
; Default Value: not set (auto detection)
;events.mechanism = epoll
; When FPM is built with systemd integration, specify the interval,
; in seconds, between health report notification to systemd.
; Set to 0 to disable.
; Available Units: s(econds), m(inutes), h(ours)
; Default Unit: seconds
; Default value: 10
;systemd_interval = 10
;;;;;;;;;;;;;;;;;;;;
; Pool Definitions ;
;;;;;;;;;;;;;;;;;;;;
; Multiple pools of child processes may be started with different listening
; ports and different management options.  The name of the pool will be
; used in logs and stats. There is no limitation on the number of pools which
; FPM can handle. Your system will tell you anyway :)
; Include one or more files. If glob(3) exists, it is used to include a bunch of
; files from a glob(3) pattern. This directive can be used everywhere in the
; file.
; Relative path can also be used. They will be prefixed by:
;  - the global prefix if it's been set (-p argument)
;  - /usr/lib64/php7.1 otherwise
include=/etc/php/fpm-php7.1/fpm.d/*.conf
user = lighttpd
group = lighttpd
env[HOSTNAME] = $HOSTNAME
env[PATH] = /usr/local/bin:/usr/bin:/bin:/var/www/localhost/htdocs:
env[TMP] = /tmp
;[php-fpm-pool-settings] 
pm = dynamic 
pm.max_children = 25 
pm.start_servers = 10 
pm.min_spare_servers = 5 
pm.max_spare_servers = 20 
pm.max_requests = 498


Thanks
_________________
Things you might say if you never took Physics: "I'm overweight even though I don't overeat." - Neil deGrasse Tyson


Last edited by tabanus on Tue May 08, 2018 11:09 pm; edited 1 time in total
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tabanus
l33t
l33t


Joined: 11 Jun 2004
Posts: 626
Location: UK

PostPosted: Tue May 08, 2018 11:09 pm    Post subject: Reply with quote

Actually this looks like a hardware problem https://forums.gentoo.org/viewtopic-t-1080854.html
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Things you might say if you never took Physics: "I'm overweight even though I don't overeat." - Neil deGrasse Tyson
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