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azure-sql-tips
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Merge pull request #44 from microsoft/dfurman-dev-1 

Improved details for 1180 and 1310
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Dimitri Furman 2021-01-21 15:31:48 -05:00 коммит произвёл GitHub
Родитель 0d4a65cf0c 2216ac0800
Коммит 7890c49fae
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38
sqldb-tips/get-sqldb-tips-100.sql
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@ -6,7 +6,7 @@ Returns a set of tips to improve database design, health, and performance in Azu
For the latest version of the script, see https://aka.ms/sqldbtips
For detailed description, see https://aka.ms/sqldbtipswiki
v20210120.1
v20210121.1
*/
-- Set to 1 to output tips as a JSON value
@ -242,14 +242,14 @@ VALUES
(1, 1030, 'Use the latest database compatibility level', 70, 'https://aka.ms/sqldbtipswiki#tip_id-1030', 'VIEW DATABASE STATE'),
(1, 1040, 'Enable auto-create statistics', 95, 'https://aka.ms/sqldbtipswiki#tip_id-1040', 'VIEW DATABASE STATE'),
(1, 1050, 'Enable auto-update statistics', 95, 'https://aka.ms/sqldbtipswiki#tip_id-1050', 'VIEW DATABASE STATE'),
(1, 1060, 'Enable RCSI', 80, 'https://aka.ms/sqldbtipswiki#tip_id-1060', 'VIEW DATABASE STATE'),
(1, 1060, 'Enable Read Committed Snapshot Isolation (RCSI)', 80, 'https://aka.ms/sqldbtipswiki#tip_id-1060', 'VIEW DATABASE STATE'),
(1, 1070, 'Enable Query Store', 90, 'https://aka.ms/sqldbtipswiki#tip_id-1070', 'VIEW DATABASE STATE'),
(1, 1071, 'Change Query Store operation mode to read-write', 90, 'https://aka.ms/sqldbtipswiki#tip_id-1071', 'VIEW DATABASE STATE'),
(1, 1072, 'Change Query Store capture mode from NONE to AUTO/ALL', 90, 'https://aka.ms/sqldbtipswiki#tip_id-1072', 'VIEW DATABASE STATE'),
(1, 1080, 'Disable AUTO_SHRINK', 99, 'https://aka.ms/sqldbtipswiki#tip_id-1080', 'VIEW DATABASE STATE'),
(1, 1080, 'Disable AUTO_SHRINK', 95, 'https://aka.ms/sqldbtipswiki#tip_id-1080', 'VIEW DATABASE STATE'),
(1, 1100, 'Avoid GUID leading columns in btree indexes', 60, 'https://aka.ms/sqldbtipswiki#tip_id-1100', 'VIEW DATABASE STATE'),
(1, 1110, 'Enable FLGP auto-tuning', 95, 'https://aka.ms/sqldbtipswiki#tip_id-1110', 'VIEW DATABASE STATE'),
(1, 1120, 'Used data size is close to MAXSIZE', 80, 'https://aka.ms/sqldbtipswiki#tip_id-1120', 'VIEW DATABASE STATE'),
(1, 1120, 'Used data size is close to MAXSIZE', 95, 'https://aka.ms/sqldbtipswiki#tip_id-1120', 'VIEW DATABASE STATE'),
(1, 1130, 'Allocated data size is close to MAXSIZE', 60, 'https://aka.ms/sqldbtipswiki#tip_id-1130', 'VIEW DATABASE STATE'),
(1, 1140, 'Allocated data size is much larger than used data size', 50, 'https://aka.ms/sqldbtipswiki#tip_id-1140', 'VIEW DATABASE STATE'),
(1, 1150, 'Recent CPU throttling found', 90, 'https://aka.ms/sqldbtipswiki#tip_id-1150', 'VIEW SERVER STATE'),
@ -1222,8 +1222,8 @@ SELECT 1310 AS tip_id,
CAST(CONCAT(
'schema: ', schema_name, ', ',
'object: ', object_name, ', ',
'total partitions: ', FORMAT(partition_count, '#,0'), ', ',
'partition number: ', FORMAT(partition_number, '#,0'), ', ',
'partition number: ', FORMAT(partition_number, '#,0'),
' out of ', FORMAT(partition_count, '#,0'), ', ',
'partition rows: ', FORMAT(partition_rows, '#,0'), ', ',
'partition size (MB): ', FORMAT(partition_size_mb, '#,0.00')
) AS nvarchar(max)), @CRLF
@ -1886,19 +1886,22 @@ SELECT object_id,
PARTITION BY object_id, index_name, new_compression_type
ORDER BY partition_number
)
AS interval_group -- used to pack contiguous partition intervals for the same object, index, compression type
AS interval_group, -- used to pack contiguous partition intervals for the same object, index, compression type
SUM(partition_size_mb) OVER (PARTITION BY object_id) AS object_size_mb
FROM partition_compression
WHERE new_compression_type IS NOT NULL
),
packed_partition_group AS
(
SELECT object_id,
index_name,
index_type,
SELECT QUOTENAME(OBJECT_SCHEMA_NAME(object_id)) COLLATE DATABASE_DEFAULT AS schema_name,
QUOTENAME(OBJECT_NAME(object_id)) COLLATE DATABASE_DEFAULT AS object_name,
QUOTENAME(index_name) COLLATE DATABASE_DEFAULT AS index_name,
index_type COLLATE DATABASE_DEFAULT AS index_type,
present_compression_type,
new_compression_type,
SUM(partition_size_mb) AS partition_range_size_mb,
CONCAT(MIN(partition_number), '-', MAX(partition_number)) AS partition_range
CONCAT(MIN(partition_number), '-', MAX(partition_number)) AS partition_range,
MIN(object_size_mb) AS object_size_mb
FROM partition_compression_interval
GROUP BY object_id,
index_name,
@ -1912,10 +1915,11 @@ packed_partition_group_agg AS
(
SELECT STRING_AGG(
CAST(CONCAT(
'schema: ', QUOTENAME(OBJECT_SCHEMA_NAME(object_id)) COLLATE DATABASE_DEFAULT,
', object: ', QUOTENAME(OBJECT_NAME(object_id)) COLLATE DATABASE_DEFAULT,
', index: ' + QUOTENAME(index_name) COLLATE DATABASE_DEFAULT,
', index type: ', index_type COLLATE DATABASE_DEFAULT,
'schema: ', schema_name,
', object: ', object_name,
', index: ' + index_name,
', index type: ', index_type,
', object size (MB): ', FORMAT(object_size_mb, 'N'),
', partition range: ', partition_range,
', partition range size (MB): ', FORMAT(partition_range_size_mb, 'N'),
', present compression type: ', present_compression_type,
@ -2190,7 +2194,7 @@ SELECT 1240 AS tip_id,
@NbspCRLF,
'In the last ', recent_history_duration_minutes,
' minutes, there were ', count_io_rg_impact_intervals,
' time interval(s) when workload group (database-level) resource governance for the selected service objective was significantly delaying IO.', @CRLF, @CRLF,
' time interval(s) when workload group (database-level) resource governance for the selected service objective was significantly delaying IO requests.', @CRLF, @CRLF,
'Aggregated across these intervals, IO statistics were: ', @CRLF, @CRLF,
'longest interval duration: ', FORMAT(longest_io_rg_impact_duration_seconds, '#,0'), ' seconds; ', @CRLF,
'total read IO time: ', FORMAT(total_read_time_ms, '#,0'), ' milliseconds; ', @CRLF,
@ -2382,7 +2386,7 @@ SELECT 1260 AS tip_id,
@NbspCRLF,
'In the last ', i.recent_history_duration_minutes,
' minutes, there were ', i.count_io_rg_impact_intervals,
' time interval(s) when resource pool resource governance for the selected service objective was significantly delaying IO', IIF(dso.service_objective = 'ElasticPool', CONCAT(' for elastic pool ', QUOTENAME(dso.elastic_pool_name)), ''), '.', @CRLF, @CRLF,
' time interval(s) when resource pool resource governance for the selected service objective was significantly delaying IO requests', IIF(dso.service_objective = 'ElasticPool', CONCAT(' for elastic pool ', QUOTENAME(dso.elastic_pool_name)), ''), '.', @CRLF, @CRLF,
'Aggregated across these intervals, IO statistics were: ', @CRLF, @CRLF,
'longest interval duration: ', FORMAT(i.longest_io_rg_impact_duration_seconds, '#,0'), ' seconds; ', @CRLF,
'total read IO time: ', FORMAT(i.total_read_time_ms, '#,0'), ' milliseconds; ', @CRLF,

36
sqldb-tips/get-sqldb-tips.sql
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@ -3,7 +3,7 @@ Returns a set of tips to improve database design, health, and performance in Azu
For the latest version of the script, see https://aka.ms/sqldbtips
For detailed description, see https://aka.ms/sqldbtipswiki
v20210120.1
v20210121.1
*/
-- Set to 1 to output tips as a JSON value
@ -237,7 +237,7 @@ VALUES
(1, 1080, 'Disable AUTO_SHRINK', 95, 'https://aka.ms/sqldbtipswiki#tip_id-1080', 'VIEW DATABASE STATE'),
(1, 1100, 'Avoid GUID leading columns in btree indexes', 60, 'https://aka.ms/sqldbtipswiki#tip_id-1100', 'VIEW DATABASE STATE'),
(1, 1110, 'Enable FLGP auto-tuning', 95, 'https://aka.ms/sqldbtipswiki#tip_id-1110', 'VIEW DATABASE STATE'),
(1, 1120, 'Used data size is close to MAXSIZE', 80, 'https://aka.ms/sqldbtipswiki#tip_id-1120', 'VIEW DATABASE STATE'),
(1, 1120, 'Used data size is close to MAXSIZE', 95, 'https://aka.ms/sqldbtipswiki#tip_id-1120', 'VIEW DATABASE STATE'),
(1, 1130, 'Allocated data size is close to MAXSIZE', 60, 'https://aka.ms/sqldbtipswiki#tip_id-1130', 'VIEW DATABASE STATE'),
(1, 1140, 'Allocated data size is much larger than used data size', 50, 'https://aka.ms/sqldbtipswiki#tip_id-1140', 'VIEW DATABASE STATE'),
(1, 1150, 'Recent CPU throttling found', 90, 'https://aka.ms/sqldbtipswiki#tip_id-1150', 'VIEW SERVER STATE'),
@ -1216,8 +1216,8 @@ SELECT 1310 AS tip_id,
CAST(CONCAT(
'schema: ', schema_name, ', ',
'object: ', object_name, ', ',
'total partitions: ', FORMAT(partition_count, '#,0'), ', ',
'partition number: ', FORMAT(partition_number, '#,0'), ', ',
'partition number: ', FORMAT(partition_number, '#,0'),
' out of ', FORMAT(partition_count, '#,0'), ', ',
'partition rows: ', FORMAT(partition_rows, '#,0'), ', ',
'partition size (MB): ', FORMAT(partition_size_mb, '#,0.00')
) AS nvarchar(max)), @CRLF
@ -1881,19 +1881,22 @@ SELECT object_id,
PARTITION BY object_id, index_name, new_compression_type
ORDER BY partition_number
)
AS interval_group -- used to pack contiguous partition intervals for the same object, index, compression type
AS interval_group, -- used to pack contiguous partition intervals for the same object, index, compression type
SUM(partition_size_mb) OVER (PARTITION BY object_id) AS object_size_mb
FROM partition_compression
WHERE new_compression_type IS NOT NULL
),
packed_partition_group AS
(
SELECT object_id,
index_name,
index_type,
SELECT QUOTENAME(OBJECT_SCHEMA_NAME(object_id)) COLLATE DATABASE_DEFAULT AS schema_name,
QUOTENAME(OBJECT_NAME(object_id)) COLLATE DATABASE_DEFAULT AS object_name,
QUOTENAME(index_name) COLLATE DATABASE_DEFAULT AS index_name,
index_type COLLATE DATABASE_DEFAULT AS index_type,
present_compression_type,
new_compression_type,
SUM(partition_size_mb) AS partition_range_size_mb,
CONCAT(MIN(partition_number), '-', MAX(partition_number)) AS partition_range
CONCAT(MIN(partition_number), '-', MAX(partition_number)) AS partition_range,
MIN(object_size_mb) AS object_size_mb
FROM partition_compression_interval
GROUP BY object_id,
index_name,
@ -1907,17 +1910,18 @@ packed_partition_group_agg AS
(
SELECT STRING_AGG(
CAST(CONCAT(
'schema: ', QUOTENAME(OBJECT_SCHEMA_NAME(object_id)) COLLATE DATABASE_DEFAULT,
', object: ', QUOTENAME(OBJECT_NAME(object_id)) COLLATE DATABASE_DEFAULT,
', index: ' + QUOTENAME(index_name) COLLATE DATABASE_DEFAULT,
', index type: ', index_type COLLATE DATABASE_DEFAULT,
'schema: ', schema_name,
', object: ', object_name,
', index: ' + index_name,
', index type: ', index_type,
', object size (MB): ', FORMAT(object_size_mb, 'N'),
', partition range: ', partition_range,
', partition range size (MB): ', FORMAT(partition_range_size_mb, 'N'),
', present compression type: ', present_compression_type,
', suggested compression type: ', new_compression_type
) AS nvarchar(max)), @CRLF
)
WITHIN GROUP (ORDER BY object_id, index_name, partition_range, partition_range_size_mb, new_compression_type)
WITHIN GROUP (ORDER BY object_size_mb DESC, object_name, index_name, partition_range, partition_range_size_mb, new_compression_type)
AS details
FROM packed_partition_group
HAVING COUNT(1) > 0
@ -2187,7 +2191,7 @@ SELECT 1240 AS tip_id,
@NbspCRLF,
'In the last ', recent_history_duration_minutes,
' minutes, there were ', count_io_rg_impact_intervals,
' time interval(s) when workload group (database-level) resource governance for the selected service objective was significantly delaying IO.', @CRLF, @CRLF,
' time interval(s) when workload group (database-level) resource governance for the selected service objective was significantly delaying IO requests.', @CRLF, @CRLF,
'Aggregated across these intervals, IO statistics were: ', @CRLF, @CRLF,
'longest interval duration: ', FORMAT(longest_io_rg_impact_duration_seconds, '#,0'), ' seconds; ', @CRLF,
'total read IO time: ', FORMAT(total_read_time_ms, '#,0'), ' milliseconds; ', @CRLF,
@ -2379,7 +2383,7 @@ SELECT 1260 AS tip_id,
@NbspCRLF,
'In the last ', i.recent_history_duration_minutes,
' minutes, there were ', i.count_io_rg_impact_intervals,
' time interval(s) when resource pool resource governance for the selected service objective was significantly delaying IO', IIF(dso.service_objective = 'ElasticPool', CONCAT(' for elastic pool ', QUOTENAME(dso.elastic_pool_name)), ''), '.', @CRLF, @CRLF,
' time interval(s) when resource pool resource governance for the selected service objective was significantly delaying IO requests', IIF(dso.service_objective = 'ElasticPool', CONCAT(' for elastic pool ', QUOTENAME(dso.elastic_pool_name)), ''), '.', @CRLF, @CRLF,
'Aggregated across these intervals, IO statistics were: ', @CRLF, @CRLF,
'longest interval duration: ', FORMAT(i.longest_io_rg_impact_duration_seconds, '#,0'), ' seconds; ', @CRLF,
'total read IO time: ', FORMAT(i.total_read_time_ms, '#,0'), ' milliseconds; ', @CRLF,