tests/zfs-tests/tests/functional/rsend/send_realloc_files.ksh

   1 #!/bin/ksh
   2
   3 #
   4 # This file and its contents are supplied under the terms of the
   5 # Common Development and Distribution License ("CDDL"), version 1.0.
   6 # You may only use this file in accordance with the terms of version
   7 # 1.0 of the CDDL.
   8 #
   9 # A full copy of the text of the CDDL should have accompanied this
  10 # source.  A copy of the CDDL is also available via the Internet at
  11 # http://www.illumos.org/license/CDDL.
  12 #
  13
  14 #
  15 # Copyright (c) 2019 by Lawrence Livermore National Security, LLC.
  16 #
  17
  18 . $STF_SUITE/include/libtest.shlib
  19 . $STF_SUITE/tests/functional/rsend/rsend.kshlib
  20
  21 #
  22 # Description:
  23 # Verify incremental receive properly handles reallocation.
  24 #
  25 # Strategy:
  26 # 1. Create a pool containing an encrypted filesystem.
  27 # 2. Use 'zfs send -wp' to perform a raw send of the initial filesystem.
  28 # 3. Repeat the followings steps N times to verify raw incremental receives.
  29 #   a) Randomly change several key dataset properties.
  30 #   b) Modify the contents of the filesystem such that dnode reallocation
  31 #      is likely during the 'zfs receive', and receive_object() exercises
  32 #      as much of its functionality as possible.
  33 #   c) Create a new snapshot and generate an raw incremental stream.
  34 #   d) Receive the raw incremental stream and verify the received contents.
  35 #   e) Destroy the incremental stream and old snapshot.
  36 #
  37
  38 log_assert "Verify incremental receive handles reallocation"
  39
  40 function cleanup
  41 {
  42         rm -f $BACKDIR/fs@*
  43         destroy_dataset $POOL/fs "-rR"
  44         destroy_dataset $POOL/newfs "-rR"
  45 }
  46
  47 log_onexit cleanup
  48
  49 log_must zfs create $POOL/fs
  50
  51 last_snap=1
  52 log_must zfs snapshot $POOL/fs@snap${last_snap}
  53 log_must eval "zfs send $POOL/fs@snap${last_snap} >$BACKDIR/fs@snap${last_snap}"
  54 log_must eval "zfs recv $POOL/newfs < $BACKDIR/fs@snap${last_snap}"
  55
  56 # Set atime=off to prevent the recursive_cksum from modifying newfs.
  57 log_must zfs set atime=off $POOL/newfs
  58
  59 for i in {1..5}; do
  60         # Randomly modify several dataset properties in order to generate
  61         # more interesting incremental send streams.
  62         rand_set_prop $POOL/fs checksum "off" "fletcher4" "sha256"
  63         rand_set_prop $POOL/fs compression "off" "lzjb" "gzip" "lz4"
  64         rand_set_prop $POOL/fs recordsize "32K" "128K"
  65         rand_set_prop $POOL/fs dnodesize "legacy" "auto" "4k"
  66         rand_set_prop $POOL/fs xattr "on" "sa"
  67
  68         # Churn the filesystem in such a way that we're likely to be both
  69         # allocating and reallocating objects in the incremental stream.
  70         log_must churn_files 1000 524288 $POOL/fs
  71         expected_cksum=$(recursive_cksum /$fs)
  72
  73         # Create a snapshot and use it to send an incremental stream.
  74         this_snap=$((last_snap + 1))
  75         log_must zfs snapshot $POOL/fs@snap${this_snap}
  76         log_must eval "zfs send -i $POOL/fs@snap${last_snap} \
  77             $POOL/fs@snap${this_snap} > $BACKDIR/fs@snap${this_snap}"
  78
  79         # Receive the incremental stream and verify the received contents.
  80         log_must eval "zfs recv $POOL/newfs < $BACKDIR/fs@snap${this_snap}"
  81         actual_cksum=$(recursive_cksum /$POOL/newfs)
  82
  83         if [[ "$expected_cksum" != "$actual_cksum" ]]; then
  84                 log_fail "Checksums differ ($expected_cksum != $actual_cksum)"
  85         fi
  86
  87         # Destroy the incremental stream and old snapshot.
  88         rm -f $BACKDIR/fs@snap${last_snap}
  89         log_must zfs destroy $POOL/fs@snap${last_snap}
  90         log_must zfs destroy $POOL/newfs@snap${last_snap}
  91         last_snap=$this_snap
  92 done
  93
  94 log_pass "Verify incremental receive handles dnode reallocation"