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20acd6f4
编写于
7月 25, 2013
作者:
G
Gian Merlino
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电子邮件补丁
差异文件
RealtimePlumberSchool: Persist and merge immediately upon finishJob
上级
5d44f0f1
变更
1
隐藏空白更改
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并排
Showing
1 changed file
with
80 addition
and
70 deletion
+80
-70
realtime/src/main/java/com/metamx/druid/realtime/plumber/RealtimePlumberSchool.java
.../metamx/druid/realtime/plumber/RealtimePlumberSchool.java
+80
-70
未找到文件。
realtime/src/main/java/com/metamx/druid/realtime/plumber/RealtimePlumberSchool.java
浏览文件 @
20acd6f4
...
...
@@ -105,8 +105,6 @@ public class RealtimePlumberSchool implements PlumberSchool
private
volatile
SegmentPublisher
segmentPublisher
=
null
;
private
volatile
ServerView
serverView
=
null
;
private
volatile
boolean
noMoreData
=
false
;
@JsonCreator
public
RealtimePlumberSchool
(
@JsonProperty
(
"windowPeriod"
)
Period
windowPeriod
,
...
...
@@ -321,12 +319,89 @@ public class RealtimePlumberSchool implements PlumberSchool
);
}
// Submits persist-n-merge task for a Sink to the persistExecutor
private
void
persistAndMerge
(
final
long
truncatedTime
,
final
Sink
sink
)
{
final
String
threadName
=
String
.
format
(
"%s-%s-persist-n-merge"
,
schema
.
getDataSource
(),
new
DateTime
(
truncatedTime
)
);
persistExecutor
.
execute
(
new
ThreadRenamingRunnable
(
threadName
)
{
@Override
public
void
doRun
()
{
final
Interval
interval
=
sink
.
getInterval
();
for
(
FireHydrant
hydrant
:
sink
)
{
if
(!
hydrant
.
hasSwapped
())
{
log
.
info
(
"Hydrant[%s] hasn't swapped yet, swapping. Sink[%s]"
,
hydrant
,
sink
);
final
int
rowCount
=
persistHydrant
(
hydrant
,
schema
,
interval
);
metrics
.
incrementRowOutputCount
(
rowCount
);
}
}
final
File
mergedTarget
=
new
File
(
computePersistDir
(
schema
,
interval
),
"merged"
);
if
(
mergedTarget
.
exists
())
{
log
.
info
(
"Skipping already-merged sink: %s"
,
sink
);
return
;
}
File
mergedFile
=
null
;
try
{
List
<
QueryableIndex
>
indexes
=
Lists
.
newArrayList
();
for
(
FireHydrant
fireHydrant
:
sink
)
{
Segment
segment
=
fireHydrant
.
getSegment
();
final
QueryableIndex
queryableIndex
=
segment
.
asQueryableIndex
();
log
.
info
(
"Adding hydrant[%s]"
,
fireHydrant
);
indexes
.
add
(
queryableIndex
);
}
mergedFile
=
IndexMerger
.
mergeQueryableIndex
(
indexes
,
schema
.
getAggregators
(),
mergedTarget
);
QueryableIndex
index
=
IndexIO
.
loadIndex
(
mergedFile
);
DataSegment
segment
=
dataSegmentPusher
.
push
(
mergedFile
,
sink
.
getSegment
().
withDimensions
(
Lists
.
newArrayList
(
index
.
getAvailableDimensions
()))
);
segmentPublisher
.
publishSegment
(
segment
);
}
catch
(
IOException
e
)
{
log
.
makeAlert
(
e
,
"Failed to persist merged index[%s]"
,
schema
.
getDataSource
())
.
addData
(
"interval"
,
interval
)
.
emit
();
}
if
(
mergedFile
!=
null
)
{
try
{
if
(
mergedFile
!=
null
)
{
log
.
info
(
"Deleting Index File[%s]"
,
mergedFile
);
FileUtils
.
deleteDirectory
(
mergedFile
);
}
}
catch
(
IOException
e
)
{
log
.
warn
(
e
,
"Error deleting directory[%s]"
,
mergedFile
);
}
}
}
}
);
}
@Override
public
void
finishJob
()
{
log
.
info
(
"Shutting down..."
);
noMoreData
=
true
;
for
(
final
Map
.
Entry
<
Long
,
Sink
>
entry
:
sinks
.
entrySet
())
{
persistAndMerge
(
entry
.
getKey
(),
entry
.
getValue
());
}
while
(!
sinks
.
isEmpty
())
{
try
{
...
...
@@ -557,79 +632,14 @@ public class RealtimePlumberSchool implements PlumberSchool
List
<
Map
.
Entry
<
Long
,
Sink
>>
sinksToPush
=
Lists
.
newArrayList
();
for
(
Map
.
Entry
<
Long
,
Sink
>
entry
:
sinks
.
entrySet
())
{
final
Long
intervalStart
=
entry
.
getKey
();
if
(
noMoreData
||
intervalStart
<
minTimestamp
)
{
if
(
intervalStart
<
minTimestamp
)
{
log
.
info
(
"Adding entry[%s] for merge and push."
,
entry
);
sinksToPush
.
add
(
entry
);
}
}
for
(
final
Map
.
Entry
<
Long
,
Sink
>
entry
:
sinksToPush
)
{
final
Sink
sink
=
entry
.
getValue
();
final
String
threadName
=
String
.
format
(
"%s-%s-persist-n-merge"
,
schema
.
getDataSource
(),
new
DateTime
(
entry
.
getKey
())
);
persistExecutor
.
execute
(
new
ThreadRenamingRunnable
(
threadName
)
{
@Override
public
void
doRun
()
{
final
Interval
interval
=
sink
.
getInterval
();
for
(
FireHydrant
hydrant
:
sink
)
{
if
(!
hydrant
.
hasSwapped
())
{
log
.
info
(
"Hydrant[%s] hasn't swapped yet, swapping. Sink[%s]"
,
hydrant
,
sink
);
final
int
rowCount
=
persistHydrant
(
hydrant
,
schema
,
interval
);
metrics
.
incrementRowOutputCount
(
rowCount
);
}
}
File
mergedFile
=
null
;
try
{
List
<
QueryableIndex
>
indexes
=
Lists
.
newArrayList
();
for
(
FireHydrant
fireHydrant
:
sink
)
{
Segment
segment
=
fireHydrant
.
getSegment
();
final
QueryableIndex
queryableIndex
=
segment
.
asQueryableIndex
();
log
.
info
(
"Adding hydrant[%s]"
,
fireHydrant
);
indexes
.
add
(
queryableIndex
);
}
mergedFile
=
IndexMerger
.
mergeQueryableIndex
(
indexes
,
schema
.
getAggregators
(),
new
File
(
computePersistDir
(
schema
,
interval
),
"merged"
)
);
QueryableIndex
index
=
IndexIO
.
loadIndex
(
mergedFile
);
DataSegment
segment
=
dataSegmentPusher
.
push
(
mergedFile
,
sink
.
getSegment
().
withDimensions
(
Lists
.
newArrayList
(
index
.
getAvailableDimensions
()))
);
segmentPublisher
.
publishSegment
(
segment
);
}
catch
(
IOException
e
)
{
log
.
makeAlert
(
e
,
"Failed to persist merged index[%s]"
,
schema
.
getDataSource
())
.
addData
(
"interval"
,
interval
)
.
emit
();
}
if
(
mergedFile
!=
null
)
{
try
{
if
(
mergedFile
!=
null
)
{
log
.
info
(
"Deleting Index File[%s]"
,
mergedFile
);
FileUtils
.
deleteDirectory
(
mergedFile
);
}
}
catch
(
IOException
e
)
{
log
.
warn
(
e
,
"Error deleting directory[%s]"
,
mergedFile
);
}
}
}
}
);
persistAndMerge
(
entry
.
getKey
(),
entry
.
getValue
());
}
if
(
stopped
)
{
...
...
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