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Posted to commits@iotdb.apache.org by zy...@apache.org on 2023/03/12 23:57:19 UTC
[iotdb] 07/08: [IOTDB-5661] Update Docs
This is an automated email from the ASF dual-hosted git repository.
zyk pushed a commit to branch rc/1.1.0
in repository https://gitbox.apache.org/repos/asf/iotdb.git
commit 0eb3c5d36c3a83bf9a3918b888c3114785be034f
Author: Caideyipi <87...@users.noreply.github.com>
AuthorDate: Fri Mar 10 17:31:55 2023 +0800
[IOTDB-5661] Update Docs
[IOTDB-5661] Update Docs
---
docs/UserGuide/Cluster/Cluster-Maintenance.md | 254 ++++++++++++-----------
docs/zh/UserGuide/Cluster/Cluster-Maintenance.md | 249 +++++++++++-----------
2 files changed, 261 insertions(+), 242 deletions(-)
diff --git a/docs/UserGuide/Cluster/Cluster-Maintenance.md b/docs/UserGuide/Cluster/Cluster-Maintenance.md
index 5f3289a8a5..f10a4ed906 100644
--- a/docs/UserGuide/Cluster/Cluster-Maintenance.md
+++ b/docs/UserGuide/Cluster/Cluster-Maintenance.md
@@ -243,118 +243,120 @@ Currently, IoTDB supports show Region information by the following SQL:
Show distribution of all Regions:
```
IoTDB> show regions
-+--------+------------+-------+--------+-----------+---------+----------+----------+-------+--------+
-|RegionId| Type| Status|Database|SeriesSlots|TimeSlots|DataNodeId|RpcAddress|RpcPort| Role|
-+--------+------------+-------+--------+-----------+---------+----------+----------+-------+--------+
-| 0| DataRegion|Running|root.sg1| 1| 1| 1| 127.0.0.1| 6667|Follower|
-| 0| DataRegion|Running|root.sg1| 1| 1| 2| 127.0.0.1| 6668| Leader|
-| 0| DataRegion|Running|root.sg1| 1| 1| 3| 127.0.0.1| 6669|Follower|
-| 1|SchemaRegion|Running|root.sg1| 1| 0| 1| 127.0.0.1| 6667|Follower|
-| 1|SchemaRegion|Running|root.sg1| 1| 0| 2| 127.0.0.1| 6668|Follower|
-| 1|SchemaRegion|Running|root.sg1| 1| 0| 3| 127.0.0.1| 6669| Leader|
-| 2| DataRegion|Running|root.sg2| 1| 1| 1| 127.0.0.1| 6667| Leader|
-| 2| DataRegion|Running|root.sg2| 1| 1| 2| 127.0.0.1| 6668|Follower|
-| 2| DataRegion|Running|root.sg2| 1| 1| 3| 127.0.0.1| 6669|Follower|
-| 3|SchemaRegion|Running|root.sg2| 1| 0| 1| 127.0.0.1| 6667|Follower|
-| 3|SchemaRegion|Running|root.sg2| 1| 0| 2| 127.0.0.1| 6668| Leader|
-| 3|SchemaRegion|Running|root.sg2| 1| 0| 3| 127.0.0.1| 6669|Follower|
-+--------+------------+-------+--------+-----------+---------+----------+----------+-------+--------+
++--------+------------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
+|RegionId| Type| Status|Database|SeriesSlotNum|TimeSlotNum|DataNodeId|RpcAddress|RpcPort| Role| CreateTime|
++--------+------------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
+| 0| DataRegion|Running|root.sg1| 1| 1| 1| 127.0.0.1| 6667|Follower|2023-03-07T17:32:18.520|
+| 0| DataRegion|Running|root.sg1| 1| 1| 2| 127.0.0.1| 6668| Leader|2023-03-07T17:32:18.749|
+| 0| DataRegion|Running|root.sg1| 1| 1| 3| 127.0.0.1| 6669|Follower|2023-03-07T17:32:19.013|
+| 1|SchemaRegion|Running|root.sg1| 1| 0| 1| 127.0.0.1| 6667|Follower|2023-03-07T17:32:18.111|
+| 1|SchemaRegion|Running|root.sg1| 1| 0| 2| 127.0.0.1| 6668|Follower|2023-03-07T17:32:18.245|
+| 1|SchemaRegion|Running|root.sg1| 1| 0| 3| 127.0.0.1| 6669| Leader|2023-03-07T17:32:18.398|
+| 2| DataRegion|Running|root.sg2| 1| 1| 1| 127.0.0.1| 6667| Leader|2023-03-07T17:32:19.834|
+| 2| DataRegion|Running|root.sg2| 1| 1| 2| 127.0.0.1| 6668|Follower|2023-03-07T17:32:20.011|
+| 2| DataRegion|Running|root.sg2| 1| 1| 3| 127.0.0.1| 6669|Follower|2023-03-07T17:32:20.395|
+| 3|SchemaRegion|Running|root.sg2| 1| 0| 1| 127.0.0.1| 6667|Follower|2023-03-07T17:32:19.232|
+| 3|SchemaRegion|Running|root.sg2| 1| 0| 2| 127.0.0.1| 6668| Leader|2023-03-07T17:32:19.450|
+| 3|SchemaRegion|Running|root.sg2| 1| 0| 3| 127.0.0.1| 6669|Follower|2023-03-07T17:32:19.637|
++--------+------------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
Total line number = 12
It costs 0.165s
```
+The SeriesSlotNum refers to the number of the seriesSlots in the region. In the same light, the TimeSlotNum means the number of the timeSlots in the region.
+
Show the distribution of SchemaRegions or DataRegions:
```
IoTDB> show data regions
-+--------+------------+-------+--------+-----------+---------+----------+----------+-------+--------+
-|RegionId| Type| Status|Database|SeriesSlots|TimeSlots|DataNodeId|RpcAddress|RpcPort| Role|
-+--------+------------+-------+--------+-----------+---------+----------+----------+-------+--------+
-| 0| DataRegion|Running|root.sg1| 1| 1| 1| 127.0.0.1| 6667|Follower|
-| 0| DataRegion|Running|root.sg1| 1| 1| 2| 127.0.0.1| 6668| Leader|
-| 0| DataRegion|Running|root.sg1| 1| 1| 3| 127.0.0.1| 6669|Follower|
-| 2| DataRegion|Running|root.sg2| 1| 1| 1| 127.0.0.1| 6667| Leader|
-| 2| DataRegion|Running|root.sg2| 1| 1| 2| 127.0.0.1| 6668|Follower|
-| 2| DataRegion|Running|root.sg2| 1| 1| 3| 127.0.0.1| 6669|Follower|
-+--------+------------+-------+--------+-----------+---------+----------+----------+-------+--------+
++--------+------------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
+|RegionId| Type| Status|Database|SeriesSlotNum|TimeSlotNum|DataNodeId|RpcAddress|RpcPort| Role| CreateTime|
++--------+------------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
+| 0| DataRegion|Running|root.sg1| 1| 1| 1| 127.0.0.1| 6667|Follower|2023-03-07T17:32:18.520|
+| 0| DataRegion|Running|root.sg1| 1| 1| 2| 127.0.0.1| 6668| Leader|2023-03-07T17:32:18.749|
+| 0| DataRegion|Running|root.sg1| 1| 1| 3| 127.0.0.1| 6669|Follower|2023-03-07T17:32:19.013|
+| 2| DataRegion|Running|root.sg2| 1| 1| 1| 127.0.0.1| 6667| Leader|2023-03-07T17:32:19.834|
+| 2| DataRegion|Running|root.sg2| 1| 1| 2| 127.0.0.1| 6668|Follower|2023-03-07T17:32:20.011|
+| 2| DataRegion|Running|root.sg2| 1| 1| 3| 127.0.0.1| 6669|Follower|2023-03-07T17:32:20.395|
++--------+------------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
Total line number = 6
It costs 0.011s
IoTDB> show schema regions
-+--------+------------+-------+--------+-----------+---------+----------+----------+-------+--------+
-|RegionId| Type| Status|Database|SeriesSlots|TimeSlots|DataNodeId|RpcAddress|RpcPort| Role|
-+--------+------------+-------+--------+-----------+---------+----------+----------+-------+--------+
-| 1|SchemaRegion|Running|root.sg1| 1| 0| 1| 127.0.0.1| 6667|Follower|
-| 1|SchemaRegion|Running|root.sg1| 1| 0| 2| 127.0.0.1| 6668|Follower|
-| 1|SchemaRegion|Running|root.sg1| 1| 0| 3| 127.0.0.1| 6669| Leader|
-| 3|SchemaRegion|Running|root.sg2| 1| 0| 1| 127.0.0.1| 6667|Follower|
-| 3|SchemaRegion|Running|root.sg2| 1| 0| 2| 127.0.0.1| 6668| Leader|
-| 3|SchemaRegion|Running|root.sg2| 1| 0| 3| 127.0.0.1| 6669|Follower|
-+--------+------------+-------+--------+-----------+---------+----------+----------+-------+--------+
++--------+------------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
+|RegionId| Type| Status|Database|SeriesSlotNum|TimeSlotNum|DataNodeId|RpcAddress|RpcPort| Role| CreateTime|
++--------+------------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
+| 1|SchemaRegion|Running|root.sg1| 1| 0| 1| 127.0.0.1| 6667|Follower|2023-03-07T17:32:18.111|
+| 1|SchemaRegion|Running|root.sg1| 1| 0| 2| 127.0.0.1| 6668|Follower|2023-03-07T17:32:18.245|
+| 1|SchemaRegion|Running|root.sg1| 1| 0| 3| 127.0.0.1| 6669| Leader|2023-03-07T17:32:18.398|
+| 3|SchemaRegion|Running|root.sg2| 1| 0| 1| 127.0.0.1| 6667|Follower|2023-03-07T17:32:19.232|
+| 3|SchemaRegion|Running|root.sg2| 1| 0| 2| 127.0.0.1| 6668| Leader|2023-03-07T17:32:19.450|
+| 3|SchemaRegion|Running|root.sg2| 1| 0| 3| 127.0.0.1| 6669|Follower|2023-03-07T17:32:19.637|
++--------+------------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
Total line number = 6
It costs 0.012s
```
-Show Region distribution of specified StorageGroups:
+Show Region distribution of specified DataBases:
```
IoTDB> show regions of database root.sg1
-+--------+------------+-------+--------+-----------+---------+----------+----------+-------+--------+
-|RegionId| Type| Status|Database|SeriesSlots|TimeSlots|DataNodeId|RpcAddress|RpcPort| Role|
-+--------+------------+-------+-- -----+-----------+---------+----------+----------+-------+--------+
-| 0| DataRegion|Running|root.sg1| 1| 1| 1| 127.0.0.1| 6667|Follower|
-| 0| DataRegion|Running|root.sg1| 1| 1| 2| 127.0.0.1| 6668| Leader|
-| 0| DataRegion|Running|root.sg1| 1| 1| 3| 127.0.0.1| 6669|Follower|
-| 1|SchemaRegion|Running|root.sg1| 1| 0| 1| 127.0.0.1| 6667|Follower|
-| 1|SchemaRegion|Running|root.sg1| 1| 0| 2| 127.0.0.1| 6668|Follower|
-| 1|SchemaRegion|Running|root.sg1| 1| 0| 3| 127.0.0.1| 6669| Leader|
-+--------+------------+-------+--------+-----------+---------+----------+----------+-------+--------+
++--------+------------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
+|RegionId| Type| Status|Database|SeriesSlotNum|TimeSlotNum|DataNodeId|RpcAddress|RpcPort| Role| CreateTime|
++--------+------------+-------+-- -----+-------------+-----------+----------+----------+-------+--------+-----------------------+
+| 0| DataRegion|Running|root.sg1| 1| 1| 1| 127.0.0.1| 6667|Follower|2023-03-07T17:32:18.520|
+| 0| DataRegion|Running|root.sg1| 1| 1| 2| 127.0.0.1| 6668| Leader|2023-03-07T17:32:18.749|
+| 0| DataRegion|Running|root.sg1| 1| 1| 3| 127.0.0.1| 6669|Follower|2023-03-07T17:32:19.013|
+| 1|SchemaRegion|Running|root.sg1| 1| 0| 1| 127.0.0.1| 6667|Follower|2023-03-07T17:32:18.111|
+| 1|SchemaRegion|Running|root.sg1| 1| 0| 2| 127.0.0.1| 6668|Follower|2023-03-07T17:32:18.245|
+| 1|SchemaRegion|Running|root.sg1| 1| 0| 3| 127.0.0.1| 6669| Leader|2023-03-07T17:32:18.398|
++--------+------------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
Total line number = 6
It costs 0.007s
IoTDB> show regions of database root.sg1, root.sg2
-+--------+------------+-------+--------+-----------+---------+----------+----------+-------+--------+
-|RegionId| Type| Status|Database|SeriesSlots|TimeSlots|DataNodeId|RpcAddress|RpcPort| Role|
-+--------+------------+-------+--------+-----------+---------+----------+----------+-------+--------+
-| 0| DataRegion|Running|root.sg1| 1| 1| 1| 127.0.0.1| 6667|Follower|
-| 0| DataRegion|Running|root.sg1| 1| 1| 2| 127.0.0.1| 6668| Leader|
-| 0| DataRegion|Running|root.sg1| 1| 1| 3| 127.0.0.1| 6669|Follower|
-| 1|SchemaRegion|Running|root.sg1| 1| 0| 1| 127.0.0.1| 6667|Follower|
-| 1|SchemaRegion|Running|root.sg1| 1| 0| 2| 127.0.0.1| 6668|Follower|
-| 1|SchemaRegion|Running|root.sg1| 1| 0| 3| 127.0.0.1| 6669| Leader|
-| 2| DataRegion|Running|root.sg2| 1| 1| 1| 127.0.0.1| 6667| Leader|
-| 2| DataRegion|Running|root.sg2| 1| 1| 2| 127.0.0.1| 6668|Follower|
-| 2| DataRegion|Running|root.sg2| 1| 1| 3| 127.0.0.1| 6669|Follower|
-| 3|SchemaRegion|Running|root.sg2| 1| 0| 1| 127.0.0.1| 6667|Follower|
-| 3|SchemaRegion|Running|root.sg2| 1| 0| 2| 127.0.0.1| 6668| Leader|
-| 3|SchemaRegion|Running|root.sg2| 1| 0| 3| 127.0.0.1| 6669|Follower|
-+--------+------------+-------+--------+-----------+---------+----------+----------+-------+--------+
++--------+------------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
+|RegionId| Type| Status|Database|SeriesSlotNum|TimeSlotNum|DataNodeId|RpcAddress|RpcPort| Role| CreateTime|
++--------+------------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
+| 0| DataRegion|Running|root.sg1| 1| 1| 1| 127.0.0.1| 6667|Follower|2023-03-07T17:32:18.520|
+| 0| DataRegion|Running|root.sg1| 1| 1| 2| 127.0.0.1| 6668| Leader|2023-03-07T17:32:18.749|
+| 0| DataRegion|Running|root.sg1| 1| 1| 3| 127.0.0.1| 6669|Follower|2023-03-07T17:32:19.013|
+| 1|SchemaRegion|Running|root.sg1| 1| 0| 1| 127.0.0.1| 6667|Follower|2023-03-07T17:32:18.111|
+| 1|SchemaRegion|Running|root.sg1| 1| 0| 2| 127.0.0.1| 6668|Follower|2023-03-07T17:32:18.245|
+| 1|SchemaRegion|Running|root.sg1| 1| 0| 3| 127.0.0.1| 6669| Leader|2023-03-07T17:32:18.398|
+| 2| DataRegion|Running|root.sg2| 1| 1| 1| 127.0.0.1| 6667| Leader|2023-03-07T17:32:19.834|
+| 2| DataRegion|Running|root.sg2| 1| 1| 2| 127.0.0.1| 6668|Follower|2023-03-07T17:32:20.011|
+| 2| DataRegion|Running|root.sg2| 1| 1| 3| 127.0.0.1| 6669|Follower|2023-03-07T17:32:20.395|
+| 3|SchemaRegion|Running|root.sg2| 1| 0| 1| 127.0.0.1| 6667|Follower|2023-03-07T17:32:19.232|
+| 3|SchemaRegion|Running|root.sg2| 1| 0| 2| 127.0.0.1| 6668| Leader|2023-03-07T17:32:19.450|
+| 3|SchemaRegion|Running|root.sg2| 1| 0| 3| 127.0.0.1| 6669|Follower|2023-03-07T17:32:19.637|
++--------+------------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
Total line number = 12
It costs 0.009s
IoTDB> show data regions of database root.sg1, root.sg2
-+--------+----------+-------+--------+-----------+---------+----------+----------+-------+--------+
-|RegionId| Type| Status|Database|SeriesSlots|TimeSlots|DataNodeId|RpcAddress|RpcPort| Role|
-+--------+----------+-------+--------+-----------+---------+----------+----------+-------+--------+
-| 0|DataRegion|Running|root.sg1| 1| 1| 1| 127.0.0.1| 6667|Follower|
-| 0|DataRegion|Running|root.sg1| 1| 1| 2| 127.0.0.1| 6668| Leader|
-| 0|DataRegion|Running|root.sg1| 1| 1| 3| 127.0.0.1| 6669|Follower|
-| 2|DataRegion|Running|root.sg2| 1| 1| 1| 127.0.0.1| 6667| Leader|
-| 2|DataRegion|Running|root.sg2| 1| 1| 2| 127.0.0.1| 6668|Follower|
-| 2|DataRegion|Running|root.sg2| 1| 1| 3| 127.0.0.1| 6669|Follower|
-+--------+----------+-------+--------+-----------+---------+----------+----------+-------+--------+
++--------+----------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
+|RegionId| Type| Status|Database|SeriesSlotNum|TimeSlotNum|DataNodeId|RpcAddress|RpcPort| Role| CreateTime|
++--------+----------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
+| 0|DataRegion|Running|root.sg1| 1| 1| 1| 127.0.0.1| 6667|Follower|2023-03-07T17:32:18.520|
+| 0|DataRegion|Running|root.sg1| 1| 1| 2| 127.0.0.1| 6668| Leader|2023-03-07T17:32:18.749|
+| 0|DataRegion|Running|root.sg1| 1| 1| 3| 127.0.0.1| 6669|Follower|2023-03-07T17:32:19.013|
+| 2|DataRegion|Running|root.sg2| 1| 1| 1| 127.0.0.1| 6667| Leader|2023-03-07T17:32:19.834|
+| 2|DataRegion|Running|root.sg2| 1| 1| 2| 127.0.0.1| 6668|Follower|2023-03-07T17:32:20.011|
+| 2|DataRegion|Running|root.sg2| 1| 1| 3| 127.0.0.1| 6669|Follower|2023-03-07T17:32:20.395|
++--------+----------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
Total line number = 6
It costs 0.007s
IoTDB> show schema regions of database root.sg1, root.sg2
-+--------+------------+-------+--------+-----------+---------+----------+----------+-------+--------+
-|RegionId| Type| Status|Database|SeriesSlots|TimeSlots|DataNodeId|RpcAddress|RpcPort| Role|
-+--------+------------+-------+--------+-----------+---------+----------+----------+-------+--------+
-| 1|SchemaRegion|Running|root.sg1| 1| 0| 1| 127.0.0.1| 6667|Follower|
-| 1|SchemaRegion|Running|root.sg1| 1| 0| 2| 127.0.0.1| 6668|Follower|
-| 1|SchemaRegion|Running|root.sg1| 1| 0| 3| 127.0.0.1| 6669| Leader|
-| 3|SchemaRegion|Running|root.sg2| 1| 0| 1| 127.0.0.1| 6667|Follower|
-| 3|SchemaRegion|Running|root.sg2| 1| 0| 2| 127.0.0.1| 6668| Leader|
-| 3|SchemaRegion|Running|root.sg2| 1| 0| 3| 127.0.0.1| 6669|Follower|
-+--------+------------+-------+--------+-----------+---------+----------+----------+-------+--------+
++--------+------------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
+|RegionId| Type| Status|Database|SeriesSlotNum|TimeSlotNum|DataNodeId|RpcAddress|RpcPort| Role| CreateTime|
++--------+------------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
+| 1|SchemaRegion|Running|root.sg1| 1| 0| 1| 127.0.0.1| 6667|Follower|2023-03-07T17:32:18.111|
+| 1|SchemaRegion|Running|root.sg1| 1| 0| 2| 127.0.0.1| 6668|Follower|2023-03-07T17:32:18.245|
+| 1|SchemaRegion|Running|root.sg1| 1| 0| 3| 127.0.0.1| 6669| Leader|2023-03-07T17:32:18.398|
+| 3|SchemaRegion|Running|root.sg2| 1| 0| 1| 127.0.0.1| 6667|Follower|2023-03-07T17:32:19.232|
+| 3|SchemaRegion|Running|root.sg2| 1| 0| 2| 127.0.0.1| 6668| Leader|2023-03-07T17:32:19.450|
+| 3|SchemaRegion|Running|root.sg2| 1| 0| 3| 127.0.0.1| 6669|Follower|2023-03-07T17:32:19.637|
++--------+------------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
Total line number = 6
It costs 0.009s
```
@@ -362,30 +364,30 @@ It costs 0.009s
Show Region distribution on specified Nodes:
```
IoTDB> show regions on nodeid 1
-+--------+------------+-------+--------+-----------+---------+----------+----------+-------+--------+
-|RegionId| Type| Status|Database|SeriesSlots|TimeSlots|DataNodeId|RpcAddress|RpcPort| Role|
-+--------+------------+-------+--------+-----------+---------+----------+----------+-------+--------+
-| 0| DataRegion|Running|root.sg1| 1| 1| 1| 127.0.0.1| 6667|Follower|
-| 1|SchemaRegion|Running|root.sg1| 1| 0| 1| 127.0.0.1| 6667|Follower|
-| 2| DataRegion|Running|root.sg2| 1| 1| 1| 127.0.0.1| 6667| Leader|
-| 3|SchemaRegion|Running|root.sg2| 1| 0| 1| 127.0.0.1| 6667|Follower|
-+--------+------------+-------+--------+-----------+---------+----------+----------+-------+--------+
++--------+------------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
+|RegionId| Type| Status|Database|SeriesSlotNum|TimeSlotNum|DataNodeId|RpcAddress|RpcPort| Role| CreateTime|
++--------+------------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
+| 0| DataRegion|Running|root.sg1| 1| 1| 1| 127.0.0.1| 6667|Follower|2023-03-07T17:32:18.520|
+| 1|SchemaRegion|Running|root.sg1| 1| 0| 1| 127.0.0.1| 6667|Follower|2023-03-07T17:32:18.111|
+| 2| DataRegion|Running|root.sg2| 1| 1| 1| 127.0.0.1| 6667| Leader|2023-03-07T17:32:19.834|
+| 3|SchemaRegion|Running|root.sg2| 1| 0| 1| 127.0.0.1| 6667|Follower|2023-03-07T17:32:19.232|
++--------+------------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
Total line number = 4
It costs 0.165s
IoTDB> show regions on nodeid 1, 2
-+--------+------------+-------+--------+-----------+---------+----------+----------+-------+--------+
-|RegionId| Type| Status|Database|SeriesSlots|TimeSlots|DataNodeId|RpcAddress|RpcPort| Role|
-+--------+------------+-------+--------+-----------+---------+----------+----------+-------+--------+
-| 0| DataRegion|Running|root.sg1| 1| 1| 1| 127.0.0.1| 6667|Follower|
-| 0| DataRegion|Running|root.sg1| 1| 1| 2| 127.0.0.1| 6668| Leader|
-| 1|SchemaRegion|Running|root.sg1| 1| 0| 1| 127.0.0.1| 6667|Follower|
-| 1|SchemaRegion|Running|root.sg1| 1| 0| 2| 127.0.0.1| 6668|Follower|
-| 2| DataRegion|Running|root.sg2| 1| 1| 1| 127.0.0.1| 6667| Leader|
-| 2| DataRegion|Running|root.sg2| 1| 1| 2| 127.0.0.1| 6668|Follower|
-| 3|SchemaRegion|Running|root.sg2| 1| 0| 1| 127.0.0.1| 6667|Follower|
-| 3|SchemaRegion|Running|root.sg2| 1| 0| 2| 127.0.0.1| 6668| Leader|
-+--------+------------+-------+--------+-----------+---------+----------+----------+-------+--------+
++--------+------------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
+|RegionId| Type| Status|Database|SeriesSlotNum|TimeSlotNum|DataNodeId|RpcAddress|RpcPort| Role| CreateTime|
++--------+------------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
+| 0| DataRegion|Running|root.sg1| 1| 1| 1| 127.0.0.1| 6667|Follower|2023-03-07T17:32:18.520|
+| 0| DataRegion|Running|root.sg1| 1| 1| 2| 127.0.0.1| 6668| Leader|2023-03-07T17:32:18.749|
+| 1|SchemaRegion|Running|root.sg1| 1| 0| 1| 127.0.0.1| 6667|Follower|2023-03-07T17:32:18.111|
+| 1|SchemaRegion|Running|root.sg1| 1| 0| 2| 127.0.0.1| 6668|Follower|2023-03-07T17:32:18.245|
+| 2| DataRegion|Running|root.sg2| 1| 1| 1| 127.0.0.1| 6667| Leader|2023-03-07T17:32:19.834|
+| 2| DataRegion|Running|root.sg2| 1| 1| 2| 127.0.0.1| 6668|Follower|2023-03-07T17:32:19.011|
+| 3|SchemaRegion|Running|root.sg2| 1| 0| 1| 127.0.0.1| 6667|Follower|2023-03-07T17:32:19.232|
+| 3|SchemaRegion|Running|root.sg2| 1| 0| 2| 127.0.0.1| 6668| Leader|2023-03-07T17:32:19.450|
++--------+------------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
Total line number = 8
It costs 0.165s
```
@@ -393,24 +395,24 @@ It costs 0.165s
Show Region distribution of specified StorageGroups on specified Nodes：
```
IoTDB> show regions of database root.sg1 on nodeid 1
-+--------+------------+-------+--------+-----------+---------+----------+----------+-------+--------+
-|RegionId| Type| Status|Database|SeriesSlots|TimeSlots|DataNodeId|RpcAddress|RpcPort| Role|
-+--------+------------+-------+--------+-----------+---------+----------+----------+-------+--------+
-| 0| DataRegion|Running|root.sg1| 1| 1| 1| 127.0.0.1| 6667|Follower|
-| 1|SchemaRegion|Running|root.sg1| 1| 0| 1| 127.0.0.1| 6667|Follower|
-+--------+------------+-------+--------+-----------+---------+----------+----------+-------+--------+
++--------+------------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
+|RegionId| Type| Status|Database|SeriesSlotNum|TimeSlotNum|DataNodeId|RpcAddress|RpcPort| Role| CreateTime|
++--------+------------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
+| 0| DataRegion|Running|root.sg1| 1| 1| 1| 127.0.0.1| 6667|Follower|2023-03-07T17:32:18.520|
+| 1|SchemaRegion|Running|root.sg1| 1| 0| 1| 127.0.0.1| 6667|Follower|2023-03-07T17:32:18.111|
++--------+------------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
Total line number = 2
It costs 0.165s
IoTDB> show data regions of database root.sg1, root.sg2 on nodeid 1, 2
-+--------+------------+-------+--------+-----------+---------+----------+----------+-------+--------+
-|RegionId| Type| Status|Database|SeriesSlots|TimeSlots|DataNodeId|RpcAddress|RpcPort| Role|
-+--------+------------+-------+--------+-----------+---------+----------+----------+-------+--------+
-| 0| DataRegion|Running|root.sg1| 1| 1| 1| 127.0.0.1| 6667|Follower|
-| 0| DataRegion|Running|root.sg1| 1| 1| 2| 127.0.0.1| 6668| Leader|
-| 2| DataRegion|Running|root.sg2| 1| 1| 1| 127.0.0.1| 6667| Leader|
-| 2| DataRegion|Running|root.sg2| 1| 1| 2| 127.0.0.1| 6668|Follower|
-+--------+------------+-------+--------+-----------+---------+----------+----------+-------+--------+
++--------+------------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
+|RegionId| Type| Status|Database|SeriesSlotNum|TimeSlotNum|DataNodeId|RpcAddress|RpcPort| Role| CreateTime|
++--------+------------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
+| 0| DataRegion|Running|root.sg1| 1| 1| 1| 127.0.0.1| 6667|Follower|2023-03-07T17:32:18.520|
+| 0| DataRegion|Running|root.sg1| 1| 1| 2| 127.0.0.1| 6668| Leader|2023-03-07T17:32:18.749|
+| 2| DataRegion|Running|root.sg2| 1| 1| 1| 127.0.0.1| 6667| Leader|2023-03-07T17:32:19.834|
+| 2| DataRegion|Running|root.sg2| 1| 1| 2| 127.0.0.1| 6668|Follower|2023-03-07T17:32:19.011|
++--------+------------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
Total line number = 4
It costs 0.165s
```
@@ -434,10 +436,12 @@ other Running Regions of the same RegionGroup ensure the high availability of Re
## Show cluster slots information
-The cluster uses partitions for schema and data arrangement, the partition is defined as follows:
+The cluster uses partitions for schema and data arrangement, the partition defined as follows:
+
+- `SchemaPartition`: SeriesSlot
+- `DataPartition`: <SeriesSlot, SeriesTimeSlot>
-- `SchemaPartition`: series slot
-- `DataPartition`: <series slot, time slot>
+More details can be found in the [Cluster-Concept](./Cluster-Concept.md) document.
The cluster slots information can be shown by the following SQLs:
@@ -446,9 +450,15 @@ The cluster slots information can be shown by the following SQLs:
Show the DataRegion where a DataPartition(or all DataPartitions under a same series slot) resides in:
- `SHOW DATA REGIONID OF root.sg WHERE SERIESSLOTID=s0 (AND TIMESLOTID=t0)`
-The "SERIESSLOTID=s0" can be substituted by "DEVICEID=xxx.xx.xx". Using this, the sql will calculate the seriesSlot corresponding to that deviceId.
+Specifications:
+
+1. The s0, t0 must be numbers.
+
+2. The "TimeSlotId" is short for "SeriesTimeSlotId".
+
+3. The "SERIESSLOTID=s0" can be substituted by "DEVICEID=xxx.xx.xx". Using this, the sql will calculate the seriesSlot corresponding to that deviceId.
-Also, the "TIMESLOTID=t0" can be replaced by "TIMESTAMP=t1". In this case, the sql will calculate the timeSlot the timestamp belongs to, which starts before the timeStamp and (implicitly) ends after it.
+4. The "TIMESLOTID=t0" can be replaced by "TIMESTAMP=t1". In this case, the sql will calculate the timeSlot the timestamp belongs to, which starts before the timeStamp and (implicitly) ends after it.
Eg:
```
diff --git a/docs/zh/UserGuide/Cluster/Cluster-Maintenance.md b/docs/zh/UserGuide/Cluster/Cluster-Maintenance.md
index 6cbc46329a..ea7dd151d0 100644
--- a/docs/zh/UserGuide/Cluster/Cluster-Maintenance.md
+++ b/docs/zh/UserGuide/Cluster/Cluster-Maintenance.md
@@ -243,53 +243,54 @@ It costs 0.340s
展示所有 Region 的分布：
```
IoTDB> show regions
-+--------+------------+-------+--------+-----------+---------+----------+----------+-------+--------+
-|RegionId| Type| Status|Database|SeriesSlots|TimeSlots|DataNodeId|RpcAddress|RpcPort| Role|
-+--------+------------+-------+--------+-----------+---------+----------+----------+-------+--------+
-| 0| DataRegion|Running|root.sg1| 1| 1| 1| 127.0.0.1| 6667|Follower|
-| 0| DataRegion|Running|root.sg1| 1| 1| 2| 127.0.0.1| 6668| Leader|
-| 0| DataRegion|Running|root.sg1| 1| 1| 3| 127.0.0.1| 6669|Follower|
-| 1|SchemaRegion|Running|root.sg1| 1| 0| 1| 127.0.0.1| 6667|Follower|
-| 1|SchemaRegion|Running|root.sg1| 1| 0| 2| 127.0.0.1| 6668|Follower|
-| 1|SchemaRegion|Running|root.sg1| 1| 0| 3| 127.0.0.1| 6669| Leader|
-| 2| DataRegion|Running|root.sg2| 1| 1| 1| 127.0.0.1| 6667| Leader|
-| 2| DataRegion|Running|root.sg2| 1| 1| 2| 127.0.0.1| 6668|Follower|
-| 2| DataRegion|Running|root.sg2| 1| 1| 3| 127.0.0.1| 6669|Follower|
-| 3|SchemaRegion|Running|root.sg2| 1| 0| 1| 127.0.0.1| 6667|Follower|
-| 3|SchemaRegion|Running|root.sg2| 1| 0| 2| 127.0.0.1| 6668| Leader|
-| 3|SchemaRegion|Running|root.sg2| 1| 0| 3| 127.0.0.1| 6669|Follower|
-+--------+------------+-------+--------+-----------+---------+----------+----------+-------+--------+
++--------+------------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
+|RegionId| Type| Status|Database|SeriesSlotNum|TimeSlotNum|DataNodeId|RpcAddress|RpcPort| Role| CreateTime|
++--------+------------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
+| 0| DataRegion|Running|root.sg1| 1| 1| 1| 127.0.0.1| 6667|Follower|2023-03-07T17:32:18.520|
+| 0| DataRegion|Running|root.sg1| 1| 1| 2| 127.0.0.1| 6668| Leader|2023-03-07T17:32:18.749|
+| 0| DataRegion|Running|root.sg1| 1| 1| 3| 127.0.0.1| 6669|Follower|2023-03-07T17:32:19.013|
+| 1|SchemaRegion|Running|root.sg1| 1| 0| 1| 127.0.0.1| 6667|Follower|2023-03-07T17:32:18.111|
+| 1|SchemaRegion|Running|root.sg1| 1| 0| 2| 127.0.0.1| 6668|Follower|2023-03-07T17:32:18.245|
+| 1|SchemaRegion|Running|root.sg1| 1| 0| 3| 127.0.0.1| 6669| Leader|2023-03-07T17:32:18.398|
+| 2| DataRegion|Running|root.sg2| 1| 1| 1| 127.0.0.1| 6667| Leader|2023-03-07T17:32:19.834|
+| 2| DataRegion|Running|root.sg2| 1| 1| 2| 127.0.0.1| 6668|Follower|2023-03-07T17:32:20.011|
+| 2| DataRegion|Running|root.sg2| 1| 1| 3| 127.0.0.1| 6669|Follower|2023-03-07T17:32:20.395|
+| 3|SchemaRegion|Running|root.sg2| 1| 0| 1| 127.0.0.1| 6667|Follower|2023-03-07T17:32:19.232|
+| 3|SchemaRegion|Running|root.sg2| 1| 0| 2| 127.0.0.1| 6668| Leader|2023-03-07T17:32:19.450|
+| 3|SchemaRegion|Running|root.sg2| 1| 0| 3| 127.0.0.1| 6669|Follower|2023-03-07T17:32:19.637|
++--------+------------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
Total line number = 12
It costs 0.165s
```
+其中，SeriesSlotNum 指的是 region 内 seriesSlot 的个数。同样地，TimeSlotNum 也指 region 内 timeSlot 的个数。
展示 SchemaRegion 或 DataRegion 的分布：
```
IoTDB> show data regions
-+--------+------------+-------+--------+-----------+---------+----------+----------+-------+--------+
-|RegionId| Type| Status|Database|SeriesSlots|TimeSlots|DataNodeId|RpcAddress|RpcPort| Role|
-+--------+------------+-------+--------+-----------+---------+----------+----------+-------+--------+
-| 0| DataRegion|Running|root.sg1| 1| 1| 1| 127.0.0.1| 6667|Follower|
-| 0| DataRegion|Running|root.sg1| 1| 1| 2| 127.0.0.1| 6668| Leader|
-| 0| DataRegion|Running|root.sg1| 1| 1| 3| 127.0.0.1| 6669|Follower|
-| 2| DataRegion|Running|root.sg2| 1| 1| 1| 127.0.0.1| 6667| Leader|
-| 2| DataRegion|Running|root.sg2| 1| 1| 2| 127.0.0.1| 6668|Follower|
-| 2| DataRegion|Running|root.sg2| 1| 1| 3| 127.0.0.1| 6669|Follower|
-+--------+------------+-------+--------+-----------+---------+----------+----------+-------+--------+
++--------+------------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
+|RegionId| Type| Status|Database|SeriesSlotNum|TimeSlotNum|DataNodeId|RpcAddress|RpcPort| Role| CreateTime|
++--------+------------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
+| 0| DataRegion|Running|root.sg1| 1| 1| 1| 127.0.0.1| 6667|Follower|2023-03-07T17:32:18.520|
+| 0| DataRegion|Running|root.sg1| 1| 1| 2| 127.0.0.1| 6668| Leader|2023-03-07T17:32:18.749|
+| 0| DataRegion|Running|root.sg1| 1| 1| 3| 127.0.0.1| 6669|Follower|2023-03-07T17:32:19.013|
+| 2| DataRegion|Running|root.sg2| 1| 1| 1| 127.0.0.1| 6667| Leader|2023-03-07T17:32:19.834|
+| 2| DataRegion|Running|root.sg2| 1| 1| 2| 127.0.0.1| 6668|Follower|2023-03-07T17:32:20.011|
+| 2| DataRegion|Running|root.sg2| 1| 1| 3| 127.0.0.1| 6669|Follower|2023-03-07T17:32:20.395|
++--------+------------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
Total line number = 6
It costs 0.011s
IoTDB> show schema regions
-+--------+------------+-------+--------+-----------+---------+----------+----------+-------+--------+
-|RegionId| Type| Status|Database|SeriesSlots|TimeSlots|DataNodeId|RpcAddress|RpcPort| Role|
-+--------+------------+-------+--------+-----------+---------+----------+----------+-------+--------+
-| 1|SchemaRegion|Running|root.sg1| 1| 0| 1| 127.0.0.1| 6667|Follower|
-| 1|SchemaRegion|Running|root.sg1| 1| 0| 2| 127.0.0.1| 6668|Follower|
-| 1|SchemaRegion|Running|root.sg1| 1| 0| 3| 127.0.0.1| 6669| Leader|
-| 3|SchemaRegion|Running|root.sg2| 1| 0| 1| 127.0.0.1| 6667|Follower|
-| 3|SchemaRegion|Running|root.sg2| 1| 0| 2| 127.0.0.1| 6668| Leader|
-| 3|SchemaRegion|Running|root.sg2| 1| 0| 3| 127.0.0.1| 6669|Follower|
-+--------+------------+-------+--------+-----------+---------+----------+----------+-------+--------+
++--------+------------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
+|RegionId| Type| Status|Database|SeriesSlotNum|TimeSlotNum|DataNodeId|RpcAddress|RpcPort| Role| CreateTime|
++--------+------------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
+| 1|SchemaRegion|Running|root.sg1| 1| 0| 1| 127.0.0.1| 6667|Follower|2023-03-07T17:32:18.111|
+| 1|SchemaRegion|Running|root.sg1| 1| 0| 2| 127.0.0.1| 6668|Follower|2023-03-07T17:32:18.245|
+| 1|SchemaRegion|Running|root.sg1| 1| 0| 3| 127.0.0.1| 6669| Leader|2023-03-07T17:32:18.398|
+| 3|SchemaRegion|Running|root.sg2| 1| 0| 1| 127.0.0.1| 6667|Follower|2023-03-07T17:32:19.232|
+| 3|SchemaRegion|Running|root.sg2| 1| 0| 2| 127.0.0.1| 6668| Leader|2023-03-07T17:32:19.450|
+| 3|SchemaRegion|Running|root.sg2| 1| 0| 3| 127.0.0.1| 6669|Follower|2023-03-07T17:32:19.637|
++--------+------------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
Total line number = 6
It costs 0.012s
```
@@ -297,64 +298,64 @@ It costs 0.012s
展示指定数据库 <sg1,sg2,...> 对应的 Region 分布：
```
IoTDB> show regions of database root.sg1
-+--------+------------+-------+--------+-----------+---------+----------+----------+-------+--------+
-|RegionId| Type| Status|Database|SeriesSlots|TimeSlots|DataNodeId|RpcAddress|RpcPort| Role|
-+--------+------------+-------+-- -----+-----------+---------+----------+----------+-------+--------+
-| 0| DataRegion|Running|root.sg1| 1| 1| 1| 127.0.0.1| 6667|Follower|
-| 0| DataRegion|Running|root.sg1| 1| 1| 2| 127.0.0.1| 6668| Leader|
-| 0| DataRegion|Running|root.sg1| 1| 1| 3| 127.0.0.1| 6669|Follower|
-| 1|SchemaRegion|Running|root.sg1| 1| 0| 1| 127.0.0.1| 6667|Follower|
-| 1|SchemaRegion|Running|root.sg1| 1| 0| 2| 127.0.0.1| 6668|Follower|
-| 1|SchemaRegion|Running|root.sg1| 1| 0| 3| 127.0.0.1| 6669| Leader|
-+--------+------------+-------+--------+-----------+---------+----------+----------+-------+--------+
++--------+------------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
+|RegionId| Type| Status|Database|SeriesSlotNum|TimeSlotNum|DataNodeId|RpcAddress|RpcPort| Role| CreateTime|
++--------+------------+-------+-- -----+-------------+-----------+----------+----------+-------+--------+-----------------------+
+| 0| DataRegion|Running|root.sg1| 1| 1| 1| 127.0.0.1| 6667|Follower|2023-03-07T17:32:18.520|
+| 0| DataRegion|Running|root.sg1| 1| 1| 2| 127.0.0.1| 6668| Leader|2023-03-07T17:32:18.749|
+| 0| DataRegion|Running|root.sg1| 1| 1| 3| 127.0.0.1| 6669|Follower|2023-03-07T17:32:19.013|
+| 1|SchemaRegion|Running|root.sg1| 1| 0| 1| 127.0.0.1| 6667|Follower|2023-03-07T17:32:18.111|
+| 1|SchemaRegion|Running|root.sg1| 1| 0| 2| 127.0.0.1| 6668|Follower|2023-03-07T17:32:18.245|
+| 1|SchemaRegion|Running|root.sg1| 1| 0| 3| 127.0.0.1| 6669| Leader|2023-03-07T17:32:18.398|
++--------+------------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
Total line number = 6
It costs 0.007s
IoTDB> show regions of database root.sg1, root.sg2
-+--------+------------+-------+--------+-----------+---------+----------+----------+-------+--------+
-|RegionId| Type| Status|Database|SeriesSlots|TimeSlots|DataNodeId|RpcAddress|RpcPort| Role|
-+--------+------------+-------+--------+-----------+---------+----------+----------+-------+--------+
-| 0| DataRegion|Running|root.sg1| 1| 1| 1| 127.0.0.1| 6667|Follower|
-| 0| DataRegion|Running|root.sg1| 1| 1| 2| 127.0.0.1| 6668| Leader|
-| 0| DataRegion|Running|root.sg1| 1| 1| 3| 127.0.0.1| 6669|Follower|
-| 1|SchemaRegion|Running|root.sg1| 1| 0| 1| 127.0.0.1| 6667|Follower|
-| 1|SchemaRegion|Running|root.sg1| 1| 0| 2| 127.0.0.1| 6668|Follower|
-| 1|SchemaRegion|Running|root.sg1| 1| 0| 3| 127.0.0.1| 6669| Leader|
-| 2| DataRegion|Running|root.sg2| 1| 1| 1| 127.0.0.1| 6667| Leader|
-| 2| DataRegion|Running|root.sg2| 1| 1| 2| 127.0.0.1| 6668|Follower|
-| 2| DataRegion|Running|root.sg2| 1| 1| 3| 127.0.0.1| 6669|Follower|
-| 3|SchemaRegion|Running|root.sg2| 1| 0| 1| 127.0.0.1| 6667|Follower|
-| 3|SchemaRegion|Running|root.sg2| 1| 0| 2| 127.0.0.1| 6668| Leader|
-| 3|SchemaRegion|Running|root.sg2| 1| 0| 3| 127.0.0.1| 6669|Follower|
-+--------+------------+-------+--------+-----------+---------+----------+----------+-------+--------+
++--------+------------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
+|RegionId| Type| Status|Database|SeriesSlotNum|TimeSlotNum|DataNodeId|RpcAddress|RpcPort| Role| CreateTime|
++--------+------------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
+| 0| DataRegion|Running|root.sg1| 1| 1| 1| 127.0.0.1| 6667|Follower|2023-03-07T17:32:18.520|
+| 0| DataRegion|Running|root.sg1| 1| 1| 2| 127.0.0.1| 6668| Leader|2023-03-07T17:32:18.749|
+| 0| DataRegion|Running|root.sg1| 1| 1| 3| 127.0.0.1| 6669|Follower|2023-03-07T17:32:19.013|
+| 1|SchemaRegion|Running|root.sg1| 1| 0| 1| 127.0.0.1| 6667|Follower|2023-03-07T17:32:18.111|
+| 1|SchemaRegion|Running|root.sg1| 1| 0| 2| 127.0.0.1| 6668|Follower|2023-03-07T17:32:18.245|
+| 1|SchemaRegion|Running|root.sg1| 1| 0| 3| 127.0.0.1| 6669| Leader|2023-03-07T17:32:18.398|
+| 2| DataRegion|Running|root.sg2| 1| 1| 1| 127.0.0.1| 6667| Leader|2023-03-07T17:32:19.834|
+| 2| DataRegion|Running|root.sg2| 1| 1| 2| 127.0.0.1| 6668|Follower|2023-03-07T17:32:20.011|
+| 2| DataRegion|Running|root.sg2| 1| 1| 3| 127.0.0.1| 6669|Follower|2023-03-07T17:32:20.395|
+| 3|SchemaRegion|Running|root.sg2| 1| 0| 1| 127.0.0.1| 6667|Follower|2023-03-07T17:32:19.232|
+| 3|SchemaRegion|Running|root.sg2| 1| 0| 2| 127.0.0.1| 6668| Leader|2023-03-07T17:32:19.450|
+| 3|SchemaRegion|Running|root.sg2| 1| 0| 3| 127.0.0.1| 6669|Follower|2023-03-07T17:32:19.637|
++--------+------------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
Total line number = 12
It costs 0.009s
IoTDB> show data regions of database root.sg1, root.sg2
-+--------+----------+-------+--------+-----------+---------+----------+----------+-------+--------+
-|RegionId| Type| Status|Database|SeriesSlots|TimeSlots|DataNodeId|RpcAddress|RpcPort| Role|
-+--------+----------+-------+--------+-----------+---------+----------+----------+-------+--------+
-| 0|DataRegion|Running|root.sg1| 1| 1| 1| 127.0.0.1| 6667|Follower|
-| 0|DataRegion|Running|root.sg1| 1| 1| 2| 127.0.0.1| 6668| Leader|
-| 0|DataRegion|Running|root.sg1| 1| 1| 3| 127.0.0.1| 6669|Follower|
-| 2|DataRegion|Running|root.sg2| 1| 1| 1| 127.0.0.1| 6667| Leader|
-| 2|DataRegion|Running|root.sg2| 1| 1| 2| 127.0.0.1| 6668|Follower|
-| 2|DataRegion|Running|root.sg2| 1| 1| 3| 127.0.0.1| 6669|Follower|
-+--------+----------+-------+--------+-----------+---------+----------+----------+-------+--------+
++--------+----------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
+|RegionId| Type| Status|Database|SeriesSlotNum|TimeSlotNum|DataNodeId|RpcAddress|RpcPort| Role| CreateTime|
++--------+----------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
+| 0|DataRegion|Running|root.sg1| 1| 1| 1| 127.0.0.1| 6667|Follower|2023-03-07T17:32:18.520|
+| 0|DataRegion|Running|root.sg1| 1| 1| 2| 127.0.0.1| 6668| Leader|2023-03-07T17:32:18.749|
+| 0|DataRegion|Running|root.sg1| 1| 1| 3| 127.0.0.1| 6669|Follower|2023-03-07T17:32:19.013|
+| 2|DataRegion|Running|root.sg2| 1| 1| 1| 127.0.0.1| 6667| Leader|2023-03-07T17:32:19.834|
+| 2|DataRegion|Running|root.sg2| 1| 1| 2| 127.0.0.1| 6668|Follower|2023-03-07T17:32:20.011|
+| 2|DataRegion|Running|root.sg2| 1| 1| 3| 127.0.0.1| 6669|Follower|2023-03-07T17:32:20.395|
++--------+----------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
Total line number = 6
It costs 0.007s
IoTDB> show schema regions of database root.sg1, root.sg2
-+--------+------------+-------+--------+-----------+---------+----------+----------+-------+--------+
-|RegionId| Type| Status|Database|SeriesSlots|TimeSlots|DataNodeId|RpcAddress|RpcPort| Role|
-+--------+------------+-------+--------+-----------+---------+----------+----------+-------+--------+
-| 1|SchemaRegion|Running|root.sg1| 1| 0| 1| 127.0.0.1| 6667|Follower|
-| 1|SchemaRegion|Running|root.sg1| 1| 0| 2| 127.0.0.1| 6668|Follower|
-| 1|SchemaRegion|Running|root.sg1| 1| 0| 3| 127.0.0.1| 6669| Leader|
-| 3|SchemaRegion|Running|root.sg2| 1| 0| 1| 127.0.0.1| 6667|Follower|
-| 3|SchemaRegion|Running|root.sg2| 1| 0| 2| 127.0.0.1| 6668| Leader|
-| 3|SchemaRegion|Running|root.sg2| 1| 0| 3| 127.0.0.1| 6669|Follower|
-+--------+------------+-------+--------+-----------+---------+----------+----------+-------+--------+
++--------+------------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
+|RegionId| Type| Status|Database|SeriesSlotNum|TimeSlotNum|DataNodeId|RpcAddress|RpcPort| Role| CreateTime|
++--------+------------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
+| 1|SchemaRegion|Running|root.sg1| 1| 0| 1| 127.0.0.1| 6667|Follower|2023-03-07T17:32:18.111|
+| 1|SchemaRegion|Running|root.sg1| 1| 0| 2| 127.0.0.1| 6668|Follower|2023-03-07T17:32:18.245|
+| 1|SchemaRegion|Running|root.sg1| 1| 0| 3| 127.0.0.1| 6669| Leader|2023-03-07T17:32:18.398|
+| 3|SchemaRegion|Running|root.sg2| 1| 0| 1| 127.0.0.1| 6667|Follower|2023-03-07T17:32:19.232|
+| 3|SchemaRegion|Running|root.sg2| 1| 0| 2| 127.0.0.1| 6668| Leader|2023-03-07T17:32:19.450|
+| 3|SchemaRegion|Running|root.sg2| 1| 0| 3| 127.0.0.1| 6669|Follower|2023-03-07T17:32:19.637|
++--------+------------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
Total line number = 6
It costs 0.009s
```
@@ -362,30 +363,30 @@ It costs 0.009s
展示指定节点 <id1,id2,...> 对应的 Region 分布：
```
IoTDB> show regions on nodeid 1
-+--------+------------+-------+--------+-----------+---------+----------+----------+-------+--------+
-|RegionId| Type| Status|Database|SeriesSlots|TimeSlots|DataNodeId|RpcAddress|RpcPort| Role|
-+--------+------------+-------+--------+-----------+---------+----------+----------+-------+--------+
-| 0| DataRegion|Running|root.sg1| 1| 1| 1| 127.0.0.1| 6667|Follower|
-| 1|SchemaRegion|Running|root.sg1| 1| 0| 1| 127.0.0.1| 6667|Follower|
-| 2| DataRegion|Running|root.sg2| 1| 1| 1| 127.0.0.1| 6667| Leader|
-| 3|SchemaRegion|Running|root.sg2| 1| 0| 1| 127.0.0.1| 6667|Follower|
-+--------+------------+-------+--------+-----------+---------+----------+----------+-------+--------+
++--------+------------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
+|RegionId| Type| Status|Database|SeriesSlotNum|TimeSlotNum|DataNodeId|RpcAddress|RpcPort| Role| CreateTime|
++--------+------------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
+| 0| DataRegion|Running|root.sg1| 1| 1| 1| 127.0.0.1| 6667|Follower|2023-03-07T17:32:18.520|
+| 1|SchemaRegion|Running|root.sg1| 1| 0| 1| 127.0.0.1| 6667|Follower|2023-03-07T17:32:18.111|
+| 2| DataRegion|Running|root.sg2| 1| 1| 1| 127.0.0.1| 6667| Leader|2023-03-07T17:32:19.834|
+| 3|SchemaRegion|Running|root.sg2| 1| 0| 1| 127.0.0.1| 6667|Follower|2023-03-07T17:32:19.232|
++--------+------------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
Total line number = 4
It costs 0.165s
IoTDB> show regions on nodeid 1, 2
-+--------+------------+-------+--------+-----------+---------+----------+----------+-------+--------+
-|RegionId| Type| Status|Database|SeriesSlots|TimeSlots|DataNodeId|RpcAddress|RpcPort| Role|
-+--------+------------+-------+--------+-----------+---------+----------+----------+-------+--------+
-| 0| DataRegion|Running|root.sg1| 1| 1| 1| 127.0.0.1| 6667|Follower|
-| 0| DataRegion|Running|root.sg1| 1| 1| 2| 127.0.0.1| 6668| Leader|
-| 1|SchemaRegion|Running|root.sg1| 1| 0| 1| 127.0.0.1| 6667|Follower|
-| 1|SchemaRegion|Running|root.sg1| 1| 0| 2| 127.0.0.1| 6668|Follower|
-| 2| DataRegion|Running|root.sg2| 1| 1| 1| 127.0.0.1| 6667| Leader|
-| 2| DataRegion|Running|root.sg2| 1| 1| 2| 127.0.0.1| 6668|Follower|
-| 3|SchemaRegion|Running|root.sg2| 1| 0| 1| 127.0.0.1| 6667|Follower|
-| 3|SchemaRegion|Running|root.sg2| 1| 0| 2| 127.0.0.1| 6668| Leader|
-+--------+------------+-------+--------+-----------+---------+----------+----------+-------+--------+
++--------+------------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
+|RegionId| Type| Status|Database|SeriesSlotNum|TimeSlotNum|DataNodeId|RpcAddress|RpcPort| Role| CreateTime|
++--------+------------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
+| 0| DataRegion|Running|root.sg1| 1| 1| 1| 127.0.0.1| 6667|Follower|2023-03-07T17:32:18.520|
+| 0| DataRegion|Running|root.sg1| 1| 1| 2| 127.0.0.1| 6668| Leader|2023-03-07T17:32:18.749|
+| 1|SchemaRegion|Running|root.sg1| 1| 0| 1| 127.0.0.1| 6667|Follower|2023-03-07T17:32:18.111|
+| 1|SchemaRegion|Running|root.sg1| 1| 0| 2| 127.0.0.1| 6668|Follower|2023-03-07T17:32:18.245|
+| 2| DataRegion|Running|root.sg2| 1| 1| 1| 127.0.0.1| 6667| Leader|2023-03-07T17:32:19.834|
+| 2| DataRegion|Running|root.sg2| 1| 1| 2| 127.0.0.1| 6668|Follower|2023-03-07T17:32:19.011|
+| 3|SchemaRegion|Running|root.sg2| 1| 0| 1| 127.0.0.1| 6667|Follower|2023-03-07T17:32:19.232|
+| 3|SchemaRegion|Running|root.sg2| 1| 0| 2| 127.0.0.1| 6668| Leader|2023-03-07T17:32:19.450|
++--------+------------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
Total line number = 8
It costs 0.165s
```
@@ -393,24 +394,24 @@ It costs 0.165s
展示指定数据库 <sg1,sg2,...> 在指定节点 <id1,id2,...> 对应的 Region 分布：
```
IoTDB> show regions of database root.sg1 on nodeid 1
-+--------+------------+-------+--------+-----------+---------+----------+----------+-------+--------+
-|RegionId| Type| Status|Database|SeriesSlots|TimeSlots|DataNodeId|RpcAddress|RpcPort| Role|
-+--------+------------+-------+--------+-----------+---------+----------+----------+-------+--------+
-| 0| DataRegion|Running|root.sg1| 1| 1| 1| 127.0.0.1| 6667|Follower|
-| 1|SchemaRegion|Running|root.sg1| 1| 0| 1| 127.0.0.1| 6667|Follower|
-+--------+------------+-------+--------+-----------+---------+----------+----------+-------+--------+
++--------+------------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
+|RegionId| Type| Status|Database|SeriesSlotNum|TimeSlotNum|DataNodeId|RpcAddress|RpcPort| Role| CreateTime|
++--------+------------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
+| 0| DataRegion|Running|root.sg1| 1| 1| 1| 127.0.0.1| 6667|Follower|2023-03-07T17:32:18.520|
+| 1|SchemaRegion|Running|root.sg1| 1| 0| 1| 127.0.0.1| 6667|Follower|2023-03-07T17:32:18.111|
++--------+------------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
Total line number = 2
It costs 0.165s
IoTDB> show data regions of database root.sg1, root.sg2 on nodeid 1, 2
-+--------+------------+-------+--------+-----------+---------+----------+----------+-------+--------+
-|RegionId| Type| Status|Database|SeriesSlots|TimeSlots|DataNodeId|RpcAddress|RpcPort| Role|
-+--------+------------+-------+--------+-----------+---------+----------+----------+-------+--------+
-| 0| DataRegion|Running|root.sg1| 1| 1| 1| 127.0.0.1| 6667|Follower|
-| 0| DataRegion|Running|root.sg1| 1| 1| 2| 127.0.0.1| 6668| Leader|
-| 2| DataRegion|Running|root.sg2| 1| 1| 1| 127.0.0.1| 6667| Leader|
-| 2| DataRegion|Running|root.sg2| 1| 1| 2| 127.0.0.1| 6668|Follower|
-+--------+------------+-------+--------+-----------+---------+----------+----------+-------+--------+
++--------+------------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
+|RegionId| Type| Status|Database|SeriesSlotNum|TimeSlotNum|DataNodeId|RpcAddress|RpcPort| Role| CreateTime|
++--------+------------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
+| 0| DataRegion|Running|root.sg1| 1| 1| 1| 127.0.0.1| 6667|Follower|2023-03-07T17:32:18.520|
+| 0| DataRegion|Running|root.sg1| 1| 1| 2| 127.0.0.1| 6668| Leader|2023-03-07T17:32:18.749|
+| 2| DataRegion|Running|root.sg2| 1| 1| 1| 127.0.0.1| 6667| Leader|2023-03-07T17:32:19.834|
+| 2| DataRegion|Running|root.sg2| 1| 1| 2| 127.0.0.1| 6668|Follower|2023-03-07T17:32:19.011|
++--------+------------+-------+--------+-------------+-----------+----------+----------+-------+--------+-----------------------+
Total line number = 4
It costs 0.165s
```
@@ -435,8 +436,10 @@ Region 继承所在 DataNode 的状态，对 Region 各状态定义如下：
集群使用分区来管理元数据和数据，分区定义如下：
-- **元数据分区**：序列槽
-- **数据分区**：<序列槽，时间分区槽>
+- **元数据分区**：SeriesSlot
+- **数据分区**：<SeriesSlot，SeriesTimeSlot>
+
+在文档[Cluster-Concept](./Cluster-Concept.md)中可以查看详细信息。
可以使用以下 SQL 来查询分区对应信息：
@@ -445,9 +448,15 @@ Region 继承所在 DataNode 的状态，对 Region 各状态定义如下：
展示一个数据分区（或一个序列槽下的所有数据分区）所在的 DataRegion:
- `SHOW DATA REGIONID OF root.sg WHERE SERIESSLOTID=s0 (AND TIMESLOTID=t0)`
-其中，”SERIESSLOTID=s0”可以被替换为”DEVICEID=xxx.xx.xx“. 这样的话，sql会自动计算对应该设备id的序列槽。
+有如下几点说明：
+
+1. s0、t0均只能为数字。
+
+2. TimeSlotId 是 SeriesTimeSlotId 的简称。
+
+2. ”SERIESSLOTID=s0”可以被替换为”DEVICEID=xxx.xx.xx“。 这样的话，sql会自动计算对应该设备id的序列槽。
-同样的，"TIMESLOTID=t0"也可以被替换为"TIMESTAMP=t1"。这样，SQL会计算该时间戳对应的时间槽，也就是时间段包含该时间戳的时间槽。
+3. 同样的，"TIMESLOTID=t0"也可以被替换为"TIMESTAMP=t1"。这样，SQL会计算该时间戳对应的时间槽，也就是时间段包含该时间戳的时间槽。
示例: