Hi Hannu.
On Wed, Jan 11, 2017 at 8:31 PM, Hannu Kröger <hkro...@gmail.com> wrote:
> One possible reason is that cassandra process gets different user when run
> differently. Check who owns the data files and check also what gets written
> into the /var/log/cassandra/system.log (or whatever that was).
>
Absolutely nothing gets written to /var/log/cassandra/system.log (when
trying to invoke cassandra via cron).
>
> Hannu
>
>
> On 11 Jan 2017, at 16.42, Ajay Garg <ajaygargn...@gmail.com> wrote:
>
> Tried everything.
> Every other cron job/script I try works, just the cassandra-service does
> not.
>
> On Wed, Jan 11, 2017 at 8:51 AM, Edward Capriolo <edlinuxg...@gmail.com>
> wrote:
>
>>
>>
>> On Tuesday, January 10, 2017, Jonathan Haddad <j...@jonhaddad.com> wrote:
>>
>>> Last I checked, cron doesn't load the same, full environment you see
>>> when you log in. Also, why put Cassandra on a cron?
>>> On Mon, Jan 9, 2017 at 9:47 PM Bhuvan Rawal <bhu1ra...@gmail.com> wrote:
>>>
>>>> Hi Ajay,
>>>>
>>>> Have you had a look at cron logs? - mine is in path /var/log/cron
>>>>
>>>> Thanks & Regards,
>>>>
>>>> On Tue, Jan 10, 2017 at 9:45 AM, Ajay Garg <ajaygargn...@gmail.com>
>>>> wrote:
>>>>
>>>>> Hi All.
>>>>>
>>>>> Facing a very weird issue, wherein the command
>>>>>
>>>>> */etc/init.d/cassandra start*
>>>>>
>>>>> causes cassandra to start when the command is run from command-line.
>>>>>
>>>>>
>>>>> However, if I put the above as a cron job
>>>>>
>>>>>
>>>>>
>>>>> ** * * * * /etc/init.d/cassandra start*
>>>>> cassandra never starts.
>>>>>
>>>>>
>>>>> I have checked, and "cron" service is running.
>>>>>
>>>>>
>>>>> Any ideas what might be wrong?
>>>>> I am pasting the cassandra script for brevity.
>>>>>
>>>>>
>>>>> Thanks and Regards,
>>>>> Ajay
>>>>>
>>>>>
>>>>> ############################################################
>>>>> ########################################
>>>>> #! /bin/sh
>>>>> ### BEGIN INIT INFO
>>>>> # Provides: cassandra
>>>>> # Required-Start: $remote_fs $network $named $time
>>>>> # Required-Stop: $remote_fs $network $named $time
>>>>> # Should-Start: ntp mdadm
>>>>> # Should-Stop: ntp mdadm
>>>>> # Default-Start: 2 3 4 5
>>>>> # Default-Stop: 0 1 6
>>>>> # Short-Description: distributed storage system for structured data
>>>>> # Description: Cassandra is a distributed (peer-to-peer) system
>>>>> for
>>>>> # the management and storage of structured data.
>>>>> ### END INIT INFO
>>>>>
>>>>> # Author: Eric Evans <eev...@racklabs.com>
>>>>>
>>>>> DESC="Cassandra"
>>>>> NAME=cassandra
>>>>> PIDFILE=/var/run/$NAME/$NAME.pid
>>>>> SCRIPTNAME=/etc/init.d/$NAME
>>>>> CONFDIR=/etc/cassandra
>>>>> WAIT_FOR_START=10
>>>>> CASSANDRA_HOME=/usr/share/cassandra
>>>>> FD_LIMIT=100000
>>>>>
>>>>> [ -e /usr/share/cassandra/apache-cassandra.jar ] || exit 0
>>>>> [ -e /etc/cassandra/cassandra.yaml ] || exit 0
>>>>> [ -e /etc/cassandra/cassandra-env.sh ] || exit 0
>>>>>
>>>>> # Read configuration variable file if it is present
>>>>> [ -r /etc/default/$NAME ] && . /etc/default/$NAME
>>>>>
>>>>> # Read Cassandra environment file.
>>>>> . /etc/cassandra/cassandra-env.sh
>>>>>
>>>>> if [ -z "$JVM_OPTS" ]; then
>>>>> echo "Initialization failed; \$JVM_OPTS not set!" >&2
>>>>> exit 3
>>>>> fi
>>>>>
>>>>> export JVM_OPTS
>>>>>
>>>>> # Export JAVA_HOME, if set.
>>>>> [ -n "$JAVA_HOME" ] && export JAVA_HOME
>>>>>
>>>>> # Load the VERBOSE setting and other rcS variables
>>>>> . /lib/init/vars.sh
>>>>>
>>>>> # Define LSB log_* functions.
>>>>> # Depend on lsb-base (>= 3.0-6) to ensure that this file is present.
>>>>> . /lib/lsb/init-functions
>>>>>
>>>>> #
>>>>> # Function that returns 0 if process is running, or nonzero if not.
>>>>> #
>>>>> # The nonzero value is 3 if the process is simply not running, and 1
>>>>> if the
>>>>> # process is not running but the pidfile exists (to match the exit
>>>>> codes for
>>>>> # the "status" command; see LSB core spec 3.1, section 20.2)
>>>>> #
>>>>> CMD_PATT="cassandra.+CassandraDaemon"
>>>>> is_running()
>>>>> {
>>>>> if [ -f $PIDFILE ]; then
>>>>> pid=`cat $PIDFILE`
>>>>> grep -Eq "$CMD_PATT" "/proc/$pid/cmdline" 2>/dev/null &&
>>>>> return 0
>>>>> return 1
>>>>> fi
>>>>> return 3
>>>>> }
>>>>> #
>>>>> # Function that starts the daemon/service
>>>>> #
>>>>> do_start()
>>>>> {
>>>>> # Return
>>>>> # 0 if daemon has been started
>>>>> # 1 if daemon was already running
>>>>> # 2 if daemon could not be started
>>>>>
>>>>> ulimit -l unlimited
>>>>> ulimit -n "$FD_LIMIT"
>>>>>
>>>>> cassandra_home=`getent passwd cassandra | awk -F ':' '{ print $6;
>>>>> }'`
>>>>> heap_dump_f="$cassandra_home/java_`date +%s`.hprof"
>>>>> error_log_f="$cassandra_home/hs_err_`date +%s`.log"
>>>>>
>>>>> [ -e `dirname "$PIDFILE"` ] || \
>>>>> install -d -ocassandra -gcassandra -m755 `dirname $PIDFILE`
>>>>>
>>>>>
>>>>>
>>>>> start-stop-daemon -S -c cassandra -a /usr/sbin/cassandra -q -p
>>>>> "$PIDFILE" -t >/dev/null || return 1
>>>>>
>>>>> start-stop-daemon -S -c cassandra -a /usr/sbin/cassandra -b -p
>>>>> "$PIDFILE" -- \
>>>>> -p "$PIDFILE" -H "$heap_dump_f" -E "$error_log_f" >/dev/null
>>>>> || return 2
>>>>>
>>>>> }
>>>>>
>>>>> #
>>>>> # Function that stops the daemon/service
>>>>> #
>>>>> do_stop()
>>>>> {
>>>>> # Return
>>>>> # 0 if daemon has been stopped
>>>>> # 1 if daemon was already stopped
>>>>> # 2 if daemon could not be stopped
>>>>> # other if a failure occurred
>>>>> start-stop-daemon -K -p "$PIDFILE" -R TERM/30/KILL/5 >/dev/null
>>>>> RET=$?
>>>>> rm -f "$PIDFILE"
>>>>> return $RET
>>>>> }
>>>>>
>>>>> case "$1" in
>>>>> start)
>>>>> [ "$VERBOSE" != no ] && log_daemon_msg "Starting $DESC" "$NAME"
>>>>> do_start
>>>>> case "$?" in
>>>>> 0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
>>>>> 2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
>>>>> esac
>>>>> ;;
>>>>> stop)
>>>>> [ "$VERBOSE" != no ] && log_daemon_msg "Stopping $DESC" "$NAME"
>>>>> do_stop
>>>>> case "$?" in
>>>>> 0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
>>>>> 2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
>>>>> esac
>>>>> ;;
>>>>> restart|force-reload)
>>>>> log_daemon_msg "Restarting $DESC" "$NAME"
>>>>> do_stop
>>>>> case "$?" in
>>>>> 0|1)
>>>>> do_start
>>>>> case "$?" in
>>>>> 0|1)
>>>>> do_start
>>>>> case "$?" in
>>>>> 0) log_end_msg 0 ;;
>>>>> 1) log_end_msg 1 ;; # Old process is still
>>>>> running
>>>>> *) log_end_msg 1 ;; # Failed to start
>>>>> esac
>>>>> ;;
>>>>> *)
>>>>> # Failed to stop
>>>>> log_end_msg 1
>>>>> ;;
>>>>> esac
>>>>> ;;
>>>>> status)
>>>>> is_running
>>>>> stat=$?
>>>>> case "$stat" in
>>>>> 0) log_success_msg "$DESC is running" ;;
>>>>> 1) log_failure_msg "could not access pidfile for $DESC" ;;
>>>>> *) log_success_msg "$DESC is not running" ;;
>>>>> esac
>>>>> exit "$stat"
>>>>> ;;
>>>>> *)
>>>>> echo "Usage: $SCRIPTNAME {start|stop|restart|force-reload|status}"
>>>>> >&2
>>>>> exit 3
>>>>> ;;
>>>>> esac
>>>>>
>>>>> :
>>>>>
>>>>> # vi:ai sw=4 ts=4 tw=0 et
>>>>> ############################################################
>>>>> ########################################
>>>>>
>>>>>
>>>>> --
>>>>> Regards,
>>>>> Ajay
>>>>>
>>>>
>>>>
>> Right. Cron is not a full shell and does not by default source things
>> like .profile. crons man pages discuss this.
>>
>> A shortcut is sometimes
>> * * * * * /etc/profile & cmd
>>
>>
>>
>> --
>> Sorry this was sent from mobile. Will do less grammar and spell check
>> than usual.
>>
>
>
>
> --
> Regards,
> Ajay
>
>
>
--
Regards,
Ajay
