delete_on_closew_error.sh

#!/bin/bash

# @project      The CERN Tape Archive (CTA)
# @copyright    Copyright © 2022 CERN
# @license      This program is free software, distributed under the terms of the GNU General Public
#               Licence version 3 (GPL Version 3), copied verbatim in the file "COPYING". You can
#               redistribute it and/or modify it under the terms of the GPL Version 3, or (at your
#               option) any later version.
#
#               This program is distributed in the hope that it will be useful, but WITHOUT ANY
#               WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
#               PARTICULAR PURPOSE. See the GNU General Public License for more details.
#
#               In applying this licence, CERN does not waive the privileges and immunities
#               granted to it by virtue of its status as an Intergovernmental Organization or
#               submit itself to any jurisdiction.


################################################################################
# DESCRIPTION
#
#   - This script checks the delete-on-close event, triggered if archiving fails
#   before the archive request is queued.
#   - After this event there should be no replicas of the file to be found, and
#   the namespace entry should not exist.
#   - Since this happens before the CLOSEW event, the file should be deleted
#   without any archive request being queued.
#
################################################################################


EOSINSTANCE=ctaeos
CTA_TEST_DIR=/eos/ctaeos/cta

cleanup()
{
  echo "Deleting ${CTA_TEST_DIR}/fail_on_closew_test"
  eosadmin_eos root://${EOSINSTANCE} rm -rf ${CTA_TEST_DIR}/fail_on_closew_test
}

error()
{
  echo "ERROR: $*" >&2
  cleanup
  exit 1
}

# get Krb5 credentials
. /root/client_helper.sh
eosadmin_kdestroy
eosadmin_kinit


################################################################################
# Testing failing CLOSEW - fail_on_closew_test
################################################################################

# The storage class 'fail_on_closew_test' attribute causes the 'delete-on-close'
#   event to be automatically triggered when a file is written to that directory.
# This can be used to test the 'delete-on-close' event.

TEST_FILE_NAME=`uuidgen`

# Create a subdirectory with a different storage class for the delete on CLOSEW test

echo "Creating ${CTA_TEST_DIR}/fail_on_closew_test event"
eosadmin_eos root://${EOSINSTANCE} mkdir ${CTA_TEST_DIR}/fail_on_closew_test || error "Failed to create directory ${CTA_TEST_DIR}/fail_on_closew_test"
eosadmin_eos root://${EOSINSTANCE} attr set sys.archive.storage_class=fail_on_closew_test ${CTA_TEST_DIR}/fail_on_closew_test || error "Failed to set sys.archive.storage_class=fail_on_closew_test on ${CTA_TEST_DIR}/fail_on_closew_test"

echo "xrdcp /etc/group root://${EOSINSTANCE}/${CTA_TEST_DIR}/fail_on_closew_test/${TEST_FILE_NAME}"
xrdcp /etc/group root://${EOSINSTANCE}/${CTA_TEST_DIR}/fail_on_closew_test/${TEST_FILE_NAME}
if [ $? -eq 0 ]
then
  error "xrdcp command succeeded where it should have failed"
else
  echo "xrdcp command failed as expected"
fi

# Since CTA Frontend will fail on CLOSEW, EOS should delete the file

# Check that the EOS namespace entry has been removed
# This means all replicas are deleted from tape and disks

eos root://${EOSINSTANCE} fileinfo ${CTA_TEST_DIR}/fail_on_closew_test/${TEST_FILE_NAME}
if [ $? -eq 2 ]
then
  echo "Success: EOS namespace entry was removed"
else
  error "EOS namespace entry is still present"
fi


################################################################################
# Cleanup and finalize
################################################################################

echo
cleanup
echo "OK: all tests passed"
exit 0