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ceremonyclient/pebble/testdata/table_stats
Cassandra Heart 2e2a1e4789
v1.2.0 (#31)
2024-01-03 01:31:42 -06:00

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batch
set a 1
set b 2
del c
----
flush
----
0.0:
000005:[a#10,SET-c#12,DEL]
wait-pending-table-stats
000005
----
num-entries: 3
num-deletions: 1
num-range-key-sets: 0
point-deletions-bytes-estimate: 64
range-deletions-bytes-estimate: 0
compact a-c
----
6:
000005:[a#10,SET-c#12,DEL]
batch
del-range a c
----
flush
----
0.0:
000007:[a#13,RANGEDEL-c#inf,RANGEDEL]
6:
000005:[a#10,SET-c#12,DEL]
wait-pending-table-stats
000007
----
num-entries: 1
num-deletions: 1
num-range-key-sets: 0
point-deletions-bytes-estimate: 0
range-deletions-bytes-estimate: 51
reopen
----
# After re-opening the database, the table stats collector should eventually
# load 000007's stats.
wait-loaded-initial
----
[JOB 2] all initial table stats loaded
wait-pending-table-stats
000007
----
num-entries: 1
num-deletions: 1
num-range-key-sets: 0
point-deletions-bytes-estimate: 0
range-deletions-bytes-estimate: 51
compact a-c
----
# Test a file that is moved by a compaction before its table stats are
# collected. The stats collector should silently skip the first pending file,
# but the second entry from the move compaction should cause the file's stats
# to be loaded.
disable
----
batch
set a 1
set b 2
----
flush
----
0.0:
000012:[a#14,SET-b#15,SET]
compact a-c
----
6:
000012:[a#14,SET-b#15,SET]
enable
----
wait-pending-table-stats
000012
----
num-entries: 2
num-deletions: 0
num-range-key-sets: 0
point-deletions-bytes-estimate: 0
range-deletions-bytes-estimate: 0
# Test a file that is deleted by a compaction before its table stats are
# collected. The stats collector should just silently skip the pending file.
disable
----
batch
del-range a c
----
flush
----
0.0:
000014:[a#16,RANGEDEL-c#inf,RANGEDEL]
6:
000012:[a#14,SET-b#15,SET]
compact a-c
----
enable
----
wait-pending-table-stats
000014
----
(not found)
# Test range tombstones that need to be truncated to file bounds. The
# grandparent limit and small target file size ensures that our manual
# compaction of L4->L5 will split the range tombstone across several files.
define target-file-sizes=(100, 1)
L4
a.RANGEDEL.8:f
L5
b.SET.7:v
L6
a.SET.1:v
L6
b.SET.2:v
L6
c.SET.3:v
L6
d.SET.4:v
L6
e.SET.5:v
----
4:
000004:[a#8,RANGEDEL-f#inf,RANGEDEL]
5:
000005:[b#7,SET-b#7,SET]
6:
000006:[a#1,SET-a#1,SET]
000007:[b#2,SET-b#2,SET]
000008:[c#3,SET-c#3,SET]
000009:[d#4,SET-d#4,SET]
000010:[e#5,SET-e#5,SET]
compact a-b L4
----
5:
000011:[a#8,RANGEDEL-b#inf,RANGEDEL]
000012:[b#8,RANGEDEL-c#inf,RANGEDEL]
000013:[c#8,RANGEDEL-d#inf,RANGEDEL]
000014:[d#8,RANGEDEL-e#inf,RANGEDEL]
000015:[e#8,RANGEDEL-f#inf,RANGEDEL]
6:
000006:[a#1,SET-a#1,SET]
000007:[b#2,SET-b#2,SET]
000008:[c#3,SET-c#3,SET]
000009:[d#4,SET-d#4,SET]
000010:[e#5,SET-e#5,SET]
wait-pending-table-stats
000011
----
num-entries: 1
num-deletions: 1
num-range-key-sets: 0
point-deletions-bytes-estimate: 0
range-deletions-bytes-estimate: 632
wait-pending-table-stats
000012
----
num-entries: 1
num-deletions: 1
num-range-key-sets: 0
point-deletions-bytes-estimate: 0
range-deletions-bytes-estimate: 632
# A table in L6 with two point keys blocks, each covered by distinct range dels.
# The deletion estimate takes into account the contribution from both deleted
# blocks. Note that the snapshot is required to allow the hint to be computed.
define block-size=1 snapshots=(10)
L6
e.SET.5:e a.RANGEDEL.15:f m.SET.5:m g.RANGEDEL.15:z
----
6:
000004:[a#15,RANGEDEL-z#inf,RANGEDEL]
wait-pending-table-stats
000004
----
num-entries: 4
num-deletions: 2
num-range-key-sets: 0
point-deletions-bytes-estimate: 0
range-deletions-bytes-estimate: 68
# Hints that partially overlap tables in lower levels only count blocks that are
# contained within the hint.
#
# L0 |-| 000004: a.RANGEDEL:b
# L1 |---| 000005: d.RANGEDEL:f
# L2 x x 000006: Two blocks [a, d]
# L2 x x 000007: Two blocks [e, h]
# -------------------
# a b c d e f g h
define block-size=1
L0
a.RANGEDEL.2:b
L1
d.RANGEDEL.1:f
L2
a.SET.0:a d.SET.0:d
L2
e.SET.0:e h.SET.0:h
----
0.0:
000004:[a#2,RANGEDEL-b#inf,RANGEDEL]
1:
000005:[d#1,RANGEDEL-f#inf,RANGEDEL]
2:
000006:[a#0,SET-d#0,SET]
000007:[e#0,SET-h#0,SET]
# Table 000004 deletes the first block in table 000006.
wait-pending-table-stats
000004
----
num-entries: 1
num-deletions: 1
num-range-key-sets: 0
point-deletions-bytes-estimate: 0
range-deletions-bytes-estimate: 33
# Table 000005 deletes the second block in table 000006 (containing 'd') and the
# first block in table 000007 (containing 'e').
wait-pending-table-stats
000005
----
num-entries: 1
num-deletions: 1
num-range-key-sets: 0
point-deletions-bytes-estimate: 0
range-deletions-bytes-estimate: 66
# Test the interaction between point and range key deletions.
define
----
# Start with a table that contains point and range keys, but no range dels or
# range key dels.
batch
set a a
range-key-set a b @1 foo
range-key-unset a b @2
----
flush
----
0.0:
000005:[a#12,RANGEKEYUNSET-b#inf,RANGEKEYSET]
# Add a table that contains only point keys, to the right of the existing table.
batch
set c c
----
flush
----
0.0:
000005:[a#12,RANGEKEYUNSET-b#inf,RANGEKEYSET]
000007:[c#13,SET-c#13,SET]
compact a-c
----
6:
000008:[a#11,RANGEKEYSET-b#inf,RANGEKEYSET]
000009:[c#0,SET-c#0,SET]
# Add a table that contains a RANGEKEYDEL covering the first table in L6.
batch
range-key-del a b
----
flush
----
0.0:
000011:[a#14,RANGEKEYDEL-b#inf,RANGEKEYDEL]
6:
000008:[a#11,RANGEKEYSET-b#inf,RANGEKEYSET]
000009:[c#0,SET-c#0,SET]
# Add one more table containing a RANGEDEL.
batch
del-range a c
----
flush
----
0.1:
000013:[a#15,RANGEDEL-c#inf,RANGEDEL]
0.0:
000011:[a#14,RANGEKEYDEL-b#inf,RANGEKEYDEL]
6:
000008:[a#11,RANGEKEYSET-b#inf,RANGEKEYSET]
000009:[c#0,SET-c#0,SET]
# Compute stats on the table containing range key del. It should not show an
# estimate for deleted point keys as there are no tables below it that contain
# only range keys.
wait-pending-table-stats
000011
----
num-entries: 0
num-deletions: 0
num-range-key-sets: 0
point-deletions-bytes-estimate: 0
range-deletions-bytes-estimate: 0
# Compute stats on the table containing the range del. It should show an
# estimate for deleted point keys, as a table below it (000008) contains point
# keys. Note that even though table 000008 contains range keys, the range del
# estimates are non-zero, as this number is agnostic of range keys.
wait-pending-table-stats
000013
----
num-entries: 1
num-deletions: 1
num-range-key-sets: 0
point-deletions-bytes-estimate: 0
range-deletions-bytes-estimate: 778
# Drop a range del and a range key del over the entire keyspace. This table can
# delete everything underneath it.
ingest ext1
del-range a z
range-key-del a z
----
0.2:
000014:[a#16,RANGEKEYDEL-z#inf,RANGEDEL]
0.1:
000013:[a#15,RANGEDEL-c#inf,RANGEDEL]
0.0:
000011:[a#14,RANGEKEYDEL-b#inf,RANGEKEYDEL]
6:
000008:[a#11,RANGEKEYSET-b#inf,RANGEKEYSET]
000009:[c#0,SET-c#0,SET]
compact a-z
----
# Ingest another sstable with range tombstones again, but this time into an
# empty LSM. The table should ingest into L6. Its table stats should reflect
# that its range tombstones cannot delete any of the data contained within the
# file itself.
ingest ext1
del-range a z
range-key-del a z
set d d
set e e
set f f
----
6:
000015:[a#17,RANGEKEYDEL-z#inf,RANGEDEL]
wait-pending-table-stats
000015
----
num-entries: 4
num-deletions: 1
num-range-key-sets: 0
point-deletions-bytes-estimate: 0
range-deletions-bytes-estimate: 0
# A hint for exclusively range key deletions that covers a table with point keys
# should not contain an estimate for point keys.
define
----
# A table with point keys.
batch
set b b
----
flush
----
0.0:
000005:[b#10,SET-b#10,SET]
# A table with a mixture of point and range keys.
batch
set c c
range-key-set d d @1 foo
----
flush
----
0.0:
000005:[b#10,SET-b#10,SET]
000007:[c#11,SET-c#11,SET]
compact a-z
----
6:
000008:[b#0,SET-b#0,SET]
000009:[c#0,SET-c#0,SET]
# The table with the range key del, that spans the previous two tables.
batch
range-key-del a z
----
flush
----
0.0:
000011:[a#13,RANGEKEYDEL-z#inf,RANGEKEYDEL]
6:
000008:[b#0,SET-b#0,SET]
000009:[c#0,SET-c#0,SET]
# The hint on table 000011 does estimates zero size for range deleted point
# keys.
wait-pending-table-stats
000011
----
num-entries: 0
num-deletions: 0
num-range-key-sets: 0
point-deletions-bytes-estimate: 0
range-deletions-bytes-estimate: 0
# A hint from a range del that covers a table with only range keys should not
# contain an estimate for the range keys.
define
L4
a.RANGEDEL.4:c
L5
a.RANGEDEL.2:e
b.SET.3:b
L6
rangekey:c-d:{(#1,RANGEKEYSET,@1,foo)}
----
4:
000004:[a#4,RANGEDEL-c#inf,RANGEDEL]
5:
000005:[a#2,RANGEDEL-e#inf,RANGEDEL]
6:
000006:[c#1,RANGEKEYSET-d#inf,RANGEKEYSET]
# The table in L5 should not contain an estimate for the table below it, which
# contains only range keys.
wait-pending-table-stats
000005
----
num-entries: 2
num-deletions: 1
num-range-key-sets: 0
point-deletions-bytes-estimate: 0
range-deletions-bytes-estimate: 0
# The table in L4 can delete the table in L5, which contains point keys. The
# estimate is only partial, as the range del does not fully overlap the table.
wait-pending-table-stats
000004
----
num-entries: 1
num-deletions: 1
num-range-key-sets: 0
point-deletions-bytes-estimate: 0
range-deletions-bytes-estimate: 26
# Test point tombstone compensation that uses DELSIZED keys.
define format-major-version=15
L6
bar.SET.0:<rand-bytes=10>
bax.SET.0:<rand-bytes=10>
foo.SET.0:<rand-bytes=100000>
moo.SET.0:<rand-bytes=1>
----
6:
000004:[bar#0,SET-moo#0,SET]
batch
set a apple
set b banana
set c coconut
del-sized foo 100000
del moo
----
flush
----
0.0:
000006:[a#10,SET-moo#14,DEL]
6:
000004:[bar#0,SET-moo#0,SET]
metric keys.missized-tombstones-count
----
keys.missized-tombstones-count: 0
# The foo DELSIZED tombstone should cause the
# `pebble.raw.point-tombstone.value.size` property to be 100000 + len(foo) =
# 100003.
properties file=000006
num.deletions
deleted.keys
raw.point-tombstone
----
num.deletions:
pebble.num.deletions.sized: 1
deleted.keys:
rocksdb.deleted.keys: 2
raw.point-tombstone:
pebble.raw.point-tombstone.key.size: 6
pebble.raw.point-tombstone.value.size: 100003
# And the size hint should then appear in the point-deletions-bytes-estimate,
# scaled according to the computed 'compression ratio'.
wait-pending-table-stats
000006
----
num-entries: 5
num-deletions: 2
num-range-key-sets: 0
point-deletions-bytes-estimate: 112732
range-deletions-bytes-estimate: 0
# Try a missized point tombstone. It should appear in the Metrics after the
# flush that will elide the a.SET.
batch
set a boop
del-sized a 10000
----
flush
----
0.1:
000008:[a#16,DEL-a#16,DEL]
0.0:
000006:[a#10,SET-moo#14,DEL]
6:
000004:[bar#0,SET-moo#0,SET]
metric keys.missized-tombstones-count
----
keys.missized-tombstones-count: 1
# Virtual sstables tests. Note that these tests are just for sanity checking
# purposes. Small sstables lead to inaccurate values during extrapolation.
define format-major-version=16
----
batch
set a 1
set b 2
del d
----
flush
----
0.0:
000005:[a#10,SET-d#12,DEL]
metadata-stats file=5
----
size: 726
# Just grab the physical sstable properties as these are used to construct the
# virtual sstable properties.
properties file=5
rocksdb
pebble
----
rocksdb:
rocksdb.num.entries: 3
rocksdb.raw.key.size: 27
rocksdb.raw.value.size: 2
rocksdb.deleted.keys: 1
rocksdb.num.range-deletions: 0
rocksdb.comparator: pebble.internal.testkeys
rocksdb.compression: Snappy
rocksdb.compression_options: window_bits=-14; level=32767; strategy=0; max_dict_bytes=0; zstd_max_train_bytes=0; enabled=0;
rocksdb.data.size: 53
rocksdb.filter.size: 0
rocksdb.index.size: 27
rocksdb.block.based.table.index.type: 0
rocksdb.merge.operator: pebble.concatenate
rocksdb.num.data.blocks: 1
rocksdb.merge.operands: 0
rocksdb.prefix.extractor.name: nullptr
rocksdb.block.based.table.prefix.filtering: false
rocksdb.property.collectors: [obsolete-key]
rocksdb.block.based.table.whole.key.filtering: false
pebble:
pebble.raw.point-tombstone.key.size: 1
rocksdb.comparator: pebble.internal.testkeys
rocksdb.merge.operator: pebble.concatenate
build ext1
set f f
----
ingest-and-excise ext1 excise=b-c
----
lsm
----
0.0:
000007:[a#10,SET-a#10,SET]
000008:[d#12,DEL-d#12,DEL]
6:
000006:[f#13,SET-f#13,SET]
metadata-stats file=7
----
size: 53
metadata-stats file=8
----
size: 53
# Note that the backing file size is much larger than the virtual file sizes.
# For tiny sstables, the metadata contained in the sstable is much larger than
# the actual sizes.
# While sstable 8 has no point tombstones, because of the nature of extrapolation
# both file 7 and file 8 will have a point tombstone key size property. Because
# of this both the files have a point deletion bytes estimate.
properties file=7
----
rocksdb.num.entries: 1
rocksdb.raw.key.size: 2
rocksdb.raw.value.size: 1
pebble.raw.point-tombstone.key.size: 1
rocksdb.deleted.keys: 1
properties file=8
----
rocksdb.num.entries: 1
rocksdb.raw.key.size: 2
rocksdb.raw.value.size: 1
pebble.raw.point-tombstone.key.size: 1
rocksdb.deleted.keys: 1
wait-pending-table-stats
000007
----
num-entries: 1
num-deletions: 1
num-range-key-sets: 0
point-deletions-bytes-estimate: 53
range-deletions-bytes-estimate: 0
wait-pending-table-stats
000008
----
num-entries: 1
num-deletions: 1
num-range-key-sets: 0
point-deletions-bytes-estimate: 53
range-deletions-bytes-estimate: 0
# Create an sstable with a range key set.
batch
set a a
set b b
set d d
range-key-set e ee @1 foo
----
flush
----
0.1:
000010:[a#14,SET-ee#inf,RANGEKEYSET]
0.0:
000007:[a#10,SET-a#10,SET]
000008:[d#12,DEL-d#12,DEL]
6:
000006:[f#13,SET-f#13,SET]
properties file=10
rocksdb
pebble
----
rocksdb:
rocksdb.num.entries: 3
rocksdb.raw.key.size: 27
rocksdb.raw.value.size: 3
rocksdb.deleted.keys: 0
rocksdb.num.range-deletions: 0
rocksdb.comparator: pebble.internal.testkeys
rocksdb.compression: Snappy
rocksdb.compression_options: window_bits=-14; level=32767; strategy=0; max_dict_bytes=0; zstd_max_train_bytes=0; enabled=0;
rocksdb.data.size: 47
rocksdb.filter.size: 0
rocksdb.index.size: 27
rocksdb.block.based.table.index.type: 0
rocksdb.merge.operator: pebble.concatenate
rocksdb.num.data.blocks: 1
rocksdb.merge.operands: 0
rocksdb.prefix.extractor.name: nullptr
rocksdb.block.based.table.prefix.filtering: false
rocksdb.property.collectors: [obsolete-key]
rocksdb.block.based.table.whole.key.filtering: false
pebble:
pebble.num.range-key-dels: 0
pebble.num.range-key-sets: 1
rocksdb.comparator: pebble.internal.testkeys
rocksdb.merge.operator: pebble.concatenate
pebble.num.range-key-unsets: 0
pebble.raw.range-key.key.size: 9
pebble.raw.range-key.value.size: 10
metadata-stats file=10
----
size: 828
build ext2
set z z
----
ingest-and-excise ext2 excise=b-c
----
lsm
----
0.1:
000012:[a#14,SET-a#14,SET]
000013:[d#16,SET-ee#inf,RANGEKEYSET]
0.0:
000007:[a#10,SET-a#10,SET]
000008:[d#12,DEL-d#12,DEL]
6:
000006:[f#13,SET-f#13,SET]
000011:[z#18,SET-z#18,SET]
metadata-stats file=12
----
size: 47
metadata-stats file=13
----
size: 47
# range key sets shows up for both files. This is expected.
properties file=12
----
rocksdb.num.entries: 1
rocksdb.raw.key.size: 2
rocksdb.raw.value.size: 1
pebble.num.range-key-sets: 1
properties file=13
----
rocksdb.num.entries: 1
rocksdb.raw.key.size: 2
rocksdb.raw.value.size: 1
pebble.num.range-key-sets: 1
wait-pending-table-stats
000012
----
num-entries: 1
num-deletions: 0
num-range-key-sets: 1
point-deletions-bytes-estimate: 0
range-deletions-bytes-estimate: 0
wait-pending-table-stats
000013
----
num-entries: 1
num-deletions: 0
num-range-key-sets: 1
point-deletions-bytes-estimate: 0
range-deletions-bytes-estimate: 0
# Create an sstable with range deletes to view the range delete byte estimates.
# Compact everything to L6. Range deletion bytes estimate doesn't account for
# bytes in L0.
compact a-z
----
6:
000014:[a#0,SET-a#0,SET]
000015:[d#0,SETWITHDEL-d#0,SETWITHDEL]
000016:[e#17,RANGEKEYSET-ee#inf,RANGEKEYSET]
000006:[f#13,SET-f#13,SET]
000011:[z#18,SET-z#18,SET]
batch
del-range a e
----
flush
----
0.0:
000018:[a#19,RANGEDEL-e#inf,RANGEDEL]
6:
000014:[a#0,SET-a#0,SET]
000015:[d#0,SETWITHDEL-d#0,SETWITHDEL]
000016:[e#17,RANGEKEYSET-ee#inf,RANGEKEYSET]
000006:[f#13,SET-f#13,SET]
000011:[z#18,SET-z#18,SET]
properties file=18
rocksdb
pebble
----
rocksdb:
rocksdb.num.entries: 1
rocksdb.raw.key.size: 9
rocksdb.raw.value.size: 1
rocksdb.deleted.keys: 1
rocksdb.num.range-deletions: 1
rocksdb.comparator: pebble.internal.testkeys
rocksdb.compression: Snappy
rocksdb.compression_options: window_bits=-14; level=32767; strategy=0; max_dict_bytes=0; zstd_max_train_bytes=0; enabled=0;
rocksdb.data.size: 13
rocksdb.filter.size: 0
rocksdb.index.size: 29
rocksdb.block.based.table.index.type: 0
rocksdb.merge.operator: pebble.concatenate
rocksdb.num.data.blocks: 1
rocksdb.merge.operands: 0
rocksdb.prefix.extractor.name: nullptr
rocksdb.block.based.table.prefix.filtering: false
rocksdb.property.collectors: [obsolete-key]
rocksdb.block.based.table.whole.key.filtering: false
pebble:
rocksdb.comparator: pebble.internal.testkeys
rocksdb.merge.operator: pebble.concatenate
build ext3
set zz zz
----
ingest-and-excise ext3 excise=b-c
----
lsm
----
0.0:
000020:[a#19,RANGEDEL-b#inf,RANGEDEL]
000021:[c#19,RANGEDEL-e#inf,RANGEDEL]
6:
000014:[a#0,SET-a#0,SET]
000015:[d#0,SETWITHDEL-d#0,SETWITHDEL]
000016:[e#17,RANGEKEYSET-ee#inf,RANGEKEYSET]
000006:[f#13,SET-f#13,SET]
000011:[z#18,SET-z#18,SET]
000019:[zz#20,SET-zz#20,SET]
properties file=20
----
rocksdb.num.entries: 1
rocksdb.raw.key.size: 1
rocksdb.raw.value.size: 1
rocksdb.deleted.keys: 1
rocksdb.num.range-deletions: 1
properties file=21
----
rocksdb.num.entries: 1
rocksdb.raw.key.size: 1
rocksdb.raw.value.size: 1
rocksdb.deleted.keys: 1
rocksdb.num.range-deletions: 1
wait-pending-table-stats
000020
----
num-entries: 1
num-deletions: 1
num-range-key-sets: 0
point-deletions-bytes-estimate: 0
range-deletions-bytes-estimate: 661
wait-pending-table-stats
000021
----
num-entries: 1
num-deletions: 1
num-range-key-sets: 0
point-deletions-bytes-estimate: 0
range-deletions-bytes-estimate: 660
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