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#!/bin/sh
#
# Send email to ZED_EMAIL in response to a CHECKSUM or IO error.
#
# Only one email per ZED_EMAIL_INTERVAL_SECS will be sent for a given
# class/pool/vdev combination. This protects against spamming the recipient
# should multiple events occur together in time for the same pool/device.
#
# Exit codes:
# 0: email sent
# 1: email failed
# 2: email not configured
# 3: email suppressed
# 9: internal error
[ -f "${ZED_ZEDLET_DIR}/zed.rc" ] && . "${ZED_ZEDLET_DIR}/zed.rc"
. "${ZED_ZEDLET_DIR}/zed-functions.sh"
[ -n "${ZED_EMAIL}" ] || exit 2
[ -n "${ZEVENT_POOL}" ] || exit 9
[ -n "${ZEVENT_SUBCLASS}" ] || exit 9
[ -n "${ZEVENT_VDEV_PATH}" ] || exit 9
if [ "${ZEVENT_SUBCLASS}" != "checksum" ] \
&& [ "${ZEVENT_SUBCLASS}" != "io" ]; then
zed_log_err "unsupported event class \"${ZEVENT_SUBCLASS}\""
exit 9
fi
zed_check_cmd "mail" || exit 9
zed_rate_limit "${ZEVENT_POOL};${ZEVENT_VDEV_PATH};${ZEVENT_SUBCLASS};email" \
|| exit 3
umask 077
email_subject="ZFS ${ZEVENT_SUBCLASS} error for ${ZEVENT_POOL} on $(hostname)"
email_pathname="${TMPDIR:="/tmp"}/$(basename -- "$0").${ZEVENT_EID}.$$"
cat > "${email_pathname}" <<EOF
A ZFS ${ZEVENT_SUBCLASS} error has been detected:
eid: ${ZEVENT_EID}
host: $(hostname)
time: ${ZEVENT_TIME_STRING}
pool: ${ZEVENT_POOL}
vdev: ${ZEVENT_VDEV_TYPE}:${ZEVENT_VDEV_PATH}
EOF
mail -s "${email_subject}" "${ZED_EMAIL}" < "${email_pathname}"
mail_status=$?
if [ "${mail_status}" -ne 0 ]; then
zed_log_msg "mail exit=${mail_status}"
exit 1
fi
rm -f "${email_pathname}"
exit 0
|
