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Raphael S. Carvalho affa1d9b04 utils/estimated_histogram.hh: fix division-by-zero in mean() 
if mean() is called when there are no elements in the histogram,
a runtime error will happen due to division-by-zero.
approx_exponential_histogram::mean() handles it but for some
reason we forgot to do the same for estimated_histogram.

this problem was found when adding an unit test which calls
mean() in an empty histogram.

Fixes #9531.

Signed-off-by: Raphael S. Carvalho <raphaelsc@scylladb.com>
Message-Id: <20211027142813.56969-1-raphaelsc@scylladb.com>
2021-10-28 08:58:25 +03:00
..
arch/powerpc/crc32-vpmsum
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gz
treewide: extent copyright statements to present day
2021-06-06 19:18:49 +03:00
lsa
utils: Introduce lsa::weak_ptr<>
2021-07-02 19:02:14 +02:00
allocation_strategy.hh
build: enable -Winconsistent-missing-override warning
2021-09-15 12:55:54 +03:00
anchorless_list.hh
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2021-06-06 19:18:49 +03:00
array-search.cc
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2021-06-06 19:18:49 +03:00
array-search.hh
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2021-06-06 19:18:49 +03:00
ascii.cc
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ascii.hh
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atomic_vector.hh
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2021-06-06 19:18:49 +03:00
base64.cc
utils,alternator: move base64 code from alternator to utils
2021-08-09 09:24:36 +02:00
base64.hh
utils: untie rjson.hh from base64.hh
2021-10-05 12:57:54 +02:00
big_decimal.cc
utils: big_decimal: change to std::strong_ordering
2021-07-28 13:28:21 +03:00
big_decimal.hh
utils: big_decimal: change to std::strong_ordering
2021-07-28 13:28:21 +03:00
bit_cast.hh
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2021-06-06 19:18:49 +03:00
bloom_calculations.cc
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2021-06-06 19:18:49 +03:00
bloom_calculations.hh
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2021-06-06 19:18:49 +03:00
bloom_filter.cc
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2021-06-06 19:18:49 +03:00
bloom_filter.hh
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2021-06-06 19:18:49 +03:00
bounded_stats_deque.hh
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2021-06-06 19:18:49 +03:00
bptree.hh
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2021-06-06 19:18:49 +03:00
buffer_input_stream.cc
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2021-06-06 19:18:49 +03:00
buffer_input_stream.hh
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2021-06-06 19:18:49 +03:00
build_id.cc
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2021-06-06 19:18:49 +03:00
build_id.hh
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2021-06-06 19:18:49 +03:00
cached_file.hh
treewide: use coroutine::maybe_yield() instead of co_await make_ready_future()
2021-09-23 12:28:56 +02:00
chunked_vector.hh
treewide: extent copyright statements to present day
2021-06-06 19:18:49 +03:00
class_registrator.hh
abstract_replication_strategy: use shared_ptr in registry
2021-10-13 12:39:36 +03:00
clmul.hh
treewide: extent copyright statements to present day
2021-06-06 19:18:49 +03:00
coarse_steady_clock.hh
rename coarse_clock to coarse_steady_clock
2021-08-02 17:41:21 +03:00
collection-concepts.hh
util: Drop int_or_strong_ordering concept
2021-06-08 11:40:55 +03:00
compact-radix-tree.hh
utils: compact-radix-tree: fix accidental cache line bouncing
2021-08-26 17:22:22 +03:00
config_file_impl.hh
treewide: extent copyright statements to present day
2021-06-06 19:18:49 +03:00
config_file.cc
everywhere: cleanup defer.hh includes
2021-08-22 21:11:39 +03:00
config_file.hh
everywhere: cleanup defer.hh includes
2021-08-22 21:11:39 +03:00
coroutine.hh
utils/coroutine: wrap a helper in utils namespace
2021-07-22 13:28:43 +03:00
crc.hh
treewide: extent copyright statements to present day
2021-06-06 19:18:49 +03:00
cross-shard-barrier.hh
utils: Introduce cross-shard barrier (with test)
2021-09-15 17:35:12 +03:00
data_input.hh
treewide: extent copyright statements to present day
2021-06-06 19:18:49 +03:00
date.h
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directories.cc
distributed_loader, utils: Move verify_owner_and_mode
2021-10-11 11:03:51 +03:00
directories.hh
distributed_loader, utils: Move verify_owner_and_mode
2021-10-11 11:03:51 +03:00
disk-error-handler.cc
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2021-06-06 19:18:49 +03:00
disk-error-handler.hh
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2021-06-06 19:18:49 +03:00
div_ceil.hh
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2021-06-06 19:18:49 +03:00
double-decker.hh
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2021-06-06 19:18:49 +03:00
dynamic_bitset.cc
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2021-06-06 19:18:49 +03:00
dynamic_bitset.hh
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2021-06-06 19:18:49 +03:00
entangled.hh
lsa: Introduce entangled helper
2021-07-02 19:02:13 +02:00
enum_option.hh
utils/enum_option.hh: add implicit converter to the underlying enum
2021-06-13 13:18:49 +03:00
error_injection.cc
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2021-06-06 19:18:49 +03:00
error_injection.hh
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2021-06-06 19:18:49 +03:00
estimated_histogram.hh
utils/estimated_histogram.hh: fix division-by-zero in mean()
2021-10-28 08:58:25 +03:00
exceptions.cc
utils: exceptions: is_timeout_exception: add timed_out_error
2021-07-08 15:23:29 +03:00
exceptions.hh
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2021-06-06 19:18:49 +03:00
exponential_backoff_retry.hh
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2021-06-06 19:18:49 +03:00
extremum_tracking.hh
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2021-06-06 19:18:49 +03:00
fb_utilities.hh
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2021-06-06 19:18:49 +03:00
file_lock.cc
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2021-06-06 19:18:49 +03:00
file_lock.hh
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2021-06-06 19:18:49 +03:00
flush_queue.hh
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2021-06-06 19:18:49 +03:00
fragment_range.hh
utils: fragment_range: change to std::strong_ordering
2021-07-28 13:27:49 +03:00
fragmented_temporary_buffer.hh
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2021-06-06 19:18:49 +03:00
generation-number.cc
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2021-06-06 19:18:49 +03:00
generation-number.hh
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2021-06-06 19:18:49 +03:00
hash.hh
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2021-06-06 19:18:49 +03:00
histogram_metrics_helper.hh
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2021-06-06 19:18:49 +03:00
histogram.hh
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2021-06-06 19:18:49 +03:00
human_readable.cc
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2021-06-06 19:18:49 +03:00
human_readable.hh
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2021-06-06 19:18:49 +03:00
i_filter.cc
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2021-06-06 19:18:49 +03:00
i_filter.hh
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2021-06-06 19:18:49 +03:00
immutable-collection.hh
utils: Introduce immutable_collection<>
2021-07-27 20:06:53 +03:00
in.hh
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2021-06-06 19:18:49 +03:00
input_stream.hh
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2021-06-06 19:18:49 +03:00
int_range.hh
utils: int_range: change to std::strong_ordering
2021-07-28 13:29:50 +03:00
intrusive_btree.hh
btree: Add commens in .clone() and .clear()
2021-08-31 12:36:54 +03:00
intrusive-array.hh
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2021-06-06 19:18:49 +03:00
joinpoint.hh
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2021-06-06 19:18:49 +03:00
large_bitset.cc
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2021-06-06 19:18:49 +03:00
large_bitset.hh
treewide: reduce header interdependencies
2021-06-07 15:58:35 +03:00
latency.hh
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2021-06-06 19:18:49 +03:00
like_matcher.cc
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2021-06-06 19:18:49 +03:00
like_matcher.hh
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2021-06-06 19:18:49 +03:00
limiting_data_source.cc
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2021-06-06 19:18:49 +03:00
limiting_data_source.hh
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2021-06-06 19:18:49 +03:00
linearizing_input_stream.hh
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2021-06-06 19:18:49 +03:00
loading_cache.hh
loading_shared_values/loading_cache: get rid of iterators interface and return value_ptr from find(...) instead
2021-08-22 16:49:40 +03:00
loading_shared_values.hh
loading_shared_values/loading_cache: get rid of iterators interface and return value_ptr from find(...) instead
2021-08-22 16:49:40 +03:00
log_heap.hh
treewide: extent copyright statements to present day
2021-06-06 19:18:49 +03:00
logalloc.cc
treewide: use coroutine::maybe_yield() instead of co_await make_ready_future()
2021-09-23 12:28:56 +02:00
logalloc.hh
logalloc: count evicted memory
2021-08-01 19:34:13 +03:00
lru.hh
row_cache: Use generic LRU for eviction
2021-07-02 10:25:58 +02:00
managed_bytes.cc
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2021-06-06 19:18:49 +03:00
managed_bytes.hh
managed_bytes: avoid compile-time loop in converting constructor
2021-10-10 18:16:50 +03:00
managed_ref.hh
treewide: extent copyright statements to present day
2021-06-06 19:18:49 +03:00
managed_vector.hh
sstables: Cache partition index pages in LSA and link to LRU
2021-07-02 19:02:14 +02:00
maybe_yield.hh
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2021-06-06 19:18:49 +03:00
memory_data_sink.hh
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2021-06-06 19:18:49 +03:00
multiprecision_int.cc
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2021-06-06 19:18:49 +03:00
multiprecision_int.hh
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2021-06-06 19:18:49 +03:00
murmur_hash.cc
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2021-06-06 19:18:49 +03:00
murmur_hash.hh
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2021-06-06 19:18:49 +03:00
mutable_view.hh
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2021-06-06 19:18:49 +03:00
neat-object-id.hh
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2021-06-06 19:18:49 +03:00
observable.hh
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2021-06-06 19:18:49 +03:00
overloaded_functor.hh
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2021-06-06 19:18:49 +03:00
phased_barrier.hh
treewide: reduce header interdependencies
2021-06-07 15:58:35 +03:00
preempt.hh
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2021-06-06 19:18:49 +03:00
ranges.hh
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2021-06-06 19:18:49 +03:00
rate_limiter.cc
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2021-06-06 19:18:49 +03:00
rate_limiter.hh
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2021-06-06 19:18:49 +03:00
reusable_buffer.hh
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2021-06-06 19:18:49 +03:00
rjson.cc
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2021-06-06 19:18:49 +03:00
rjson.hh
utils: untie rjson.hh from base64.hh
2021-10-05 12:57:54 +02:00
runtime.cc
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2021-06-06 19:18:49 +03:00
runtime.hh
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2021-06-06 19:18:49 +03:00
sequenced_set.hh
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2021-06-06 19:18:49 +03:00
serialization.hh
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2021-06-06 19:18:49 +03:00
serialized_action.hh
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2021-06-06 19:18:49 +03:00
small_vector.hh
utils/small_vector: remove noexcept from the copy constructor, which potentially throws
2021-09-15 12:55:54 +03:00
stall_free.hh
utils: stall_free: implemnt clear_gently of froeign_ptr
2021-07-01 19:16:11 +03:00
streaming_histogram.hh
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2021-06-06 19:18:49 +03:00
top_k.hh
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2021-06-06 19:18:49 +03:00
updateable_value.cc
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2021-06-06 19:18:49 +03:00
updateable_value.hh
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2021-06-06 19:18:49 +03:00
utf8.cc
utils/utf8.c: move includes outside of namespaces
2021-05-30 23:23:20 +03:00
utf8.hh
utils: fragment_range: add a fragment iterator for FragmentedView
2021-01-15 14:05:44 +01:00
UUID_gen.cc
utils: UUID_gen: introduce negate()
2021-09-09 11:49:05 +03:00
UUID_gen.hh
utils: UUID_gen: introduce negate()
2021-09-09 11:49:05 +03:00
uuid.cc
treewide: extent copyright statements to present day
2021-06-06 19:18:49 +03:00
UUID.hh
uuid: change comparators to std::strong_ordering
2021-07-28 13:20:32 +03:00
variant_element.hh
utils: introduce variant_element.hh
2021-07-27 20:08:47 +03:00
vle.hh
uleb64: Add express encoding
2021-06-16 17:47:10 +03:00