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体验新版 GitCode,发现更多精彩内容 >>
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4fd71830
编写于
10月 31, 2016
作者:
A
Alexey Milovidov
浏览文件
操作
浏览文件
下载
电子邮件补丁
差异文件
MergeSelector: fixed error [#METR-21841].
上级
89328b49
变更
2
隐藏空白更改
内联
并排
Showing
2 changed file
with
15 addition
and
15 deletion
+15
-15
dbms/src/Storages/MergeTree/LevelMergeSelector.cpp
dbms/src/Storages/MergeTree/LevelMergeSelector.cpp
+8
-8
dbms/src/Storages/MergeTree/SimpleMergeSelector.cpp
dbms/src/Storages/MergeTree/SimpleMergeSelector.cpp
+7
-7
未找到文件。
dbms/src/Storages/MergeTree/LevelMergeSelector.cpp
浏览文件 @
4fd71830
...
...
@@ -41,7 +41,7 @@ struct Estimator
void
selectWithinPartition
(
const
LevelMergeSelector
::
PartsInPartition
&
parts
,
const
size_t
max_total_size_to_merge
,
const
time_t
current_m
ax
_part_age
,
const
time_t
current_m
in
_part_age
,
Estimator
&
estimator
,
const
LevelMergeSelector
::
Settings
&
settings
)
{
...
...
@@ -51,9 +51,9 @@ void selectWithinPartition(
double
actual_base
=
settings
.
min_parts_to_merge
;
if
(
current_m
ax
_part_age
>
settings
.
lower_base_after
)
if
(
current_m
in
_part_age
>
settings
.
lower_base_after
)
{
actual_base
-=
log2
(
current_m
ax
_part_age
-
settings
.
lower_base_after
);
actual_base
-=
log2
(
current_m
in
_part_age
-
settings
.
lower_base_after
);
if
(
actual_base
<
2
)
actual_base
=
2
;
}
...
...
@@ -125,7 +125,7 @@ void selectWithinPartition(
size_t
size_of_subrange
=
prefix_sums
[
subrange_end
]
-
prefix_sums
[
subrange_begin
];
if
(
size_of_subrange
<=
max_total_size_to_merge
)
if
(
!
max_total_size_to_merge
||
size_of_subrange
<=
max_total_size_to_merge
)
estimator
.
consider
(
parts
.
begin
()
+
subrange_begin
,
parts
.
begin
()
+
subrange_end
,
size_of_subrange
);
}
}
...
...
@@ -145,16 +145,16 @@ LevelMergeSelector::PartsInPartition LevelMergeSelector::select(
const
Partitions
&
partitions
,
const
size_t
max_total_size_to_merge
)
{
time_t
m
ax_age
=
0
;
time_t
m
in_age
=
-
1
;
for
(
const
auto
&
partition
:
partitions
)
for
(
const
auto
&
part
:
partition
)
if
(
part
.
age
>
max
_age
)
m
ax
_age
=
part
.
age
;
if
(
min_age
==
-
1
||
part
.
age
<
min
_age
)
m
in
_age
=
part
.
age
;
Estimator
estimator
;
for
(
const
auto
&
partition
:
partitions
)
selectWithinPartition
(
partition
,
max_total_size_to_merge
,
m
ax
_age
,
estimator
,
settings
);
selectWithinPartition
(
partition
,
max_total_size_to_merge
,
m
in
_age
,
estimator
,
settings
);
return
estimator
.
getBest
();
}
...
...
dbms/src/Storages/MergeTree/SimpleMergeSelector.cpp
浏览文件 @
4fd71830
...
...
@@ -74,7 +74,7 @@ struct Estimator
void
selectWithinPartition
(
const
SimpleMergeSelector
::
PartsInPartition
&
parts
,
const
size_t
max_total_size_to_merge
,
const
time_t
current_m
ax
_part_age
,
const
time_t
current_m
in
_part_age
,
Estimator
&
estimator
,
const
SimpleMergeSelector
::
Settings
&
settings
)
{
...
...
@@ -83,9 +83,9 @@ void selectWithinPartition(
double
actual_base
=
settings
.
base
;
if
(
current_m
ax
_part_age
>
settings
.
lower_base_after
)
if
(
current_m
in
_part_age
>
settings
.
lower_base_after
)
{
actual_base
-=
log2
(
current_m
ax
_part_age
-
settings
.
lower_base_after
);
actual_base
-=
log2
(
current_m
in
_part_age
-
settings
.
lower_base_after
);
if
(
actual_base
<
1
)
actual_base
=
1
;
}
...
...
@@ -149,16 +149,16 @@ SimpleMergeSelector::PartsInPartition SimpleMergeSelector::select(
const
Partitions
&
partitions
,
const
size_t
max_total_size_to_merge
)
{
time_t
m
ax_age
=
0
;
time_t
m
in_age
=
-
1
;
for
(
const
auto
&
partition
:
partitions
)
for
(
const
auto
&
part
:
partition
)
if
(
part
.
age
>
max
_age
)
m
ax
_age
=
part
.
age
;
if
(
min_age
==
-
1
||
part
.
age
<
min
_age
)
m
in
_age
=
part
.
age
;
Estimator
estimator
;
for
(
const
auto
&
partition
:
partitions
)
selectWithinPartition
(
partition
,
max_total_size_to_merge
,
m
ax
_age
,
estimator
,
settings
);
selectWithinPartition
(
partition
,
max_total_size_to_merge
,
m
in
_age
,
estimator
,
settings
);
return
estimator
.
getBest
();
}
...
...
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