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haonan pushed a commit to branch upgrade_user_guide
in repository https://gitbox.apache.org/repos/asf/iotdb.git
The following commit(s) were added to refs/heads/upgrade_user_guide by this
push:
new f2e6419 update doc
f2e6419 is described below
commit f2e64190e428be5f75a73378f5b16f09c1973ec9
Author: HTHou <[email protected]>
AuthorDate: Thu Jan 21 11:06:57 2021 +0800
update doc
---
docs/Download/README.md | 4 +++-
docs/zh/Download/README.md | 4 +++-
2 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/docs/Download/README.md b/docs/Download/README.md
index 6933bca..b164263 100644
--- a/docs/Download/README.md
+++ b/docs/Download/README.md
@@ -70,10 +70,12 @@ Legacy version are available here:
[https://archive.apache.org/dist/iotdb/](http
* Just download, unzip v0.12.x.zip, and modify conf/iotdb-engine.proeprties
to let all the
directories point to the folders set in previous version (or the backup
folder).
You can also modify other settings if you want.
- * Stop IoTDB v0.11 or v0.10 instance, and start v0.12.x, then the IoTDB will
upgrade data file format automatically.
+ * Stop IoTDB v0.11 or v0.10 instance, and start v0.12.x, then the IoTDB will
upgrade data file format automatically. We are able to read and write when data
files are upgrading.
+ * After a log `All files upgraded successfully!` printed, the upgrading
completes.
* __NOTICE 1: V0.12 changes many settings in conf/iotdb-engine.properties,
so do not use previous
configuration file directly.__
* __NOTICE 2: V0.12 doesn't support upgrade from v0.9 or lower version,
please upgrade to v0.10 first if needed.__
+ * __NOTICE 3: We don't recommend to delete data before the upgrading
finished. The deletion will fail if you try to delete data in the storage group
with upgrading files.__
- How to upgrade from v.10.x to v0.11.x?
* The data format (i.e., TsFile data) of v0.10.x and v0.11 are compatible,
but the WAL file is
diff --git a/docs/zh/Download/README.md b/docs/zh/Download/README.md
index 97d06a7..a28826f 100644
--- a/docs/zh/Download/README.md
+++ b/docs/zh/Download/README.md
@@ -66,9 +66,11 @@
* 用CLI调用`flush`，确保关闭所有的TsFile文件.
* 我们推荐提前备份数据文件（以及写前日志和mlog文件），以备回滚。
* 下载最新版，解压并修改配置文件。将各数据目录都指向备份的或者v0.11或0.10原来使用的数据目录。
- * 停止旧版本IoTDB的实例，启动v0.12的实例。IoTDB将自动升级数据文件格式。
+ * 停止旧版本IoTDB的实例，启动v0.12的实例。IoTDB将后台自动升级数据文件格式。在升级过程中数据可以进行查询和写入。
+ * 当日志中显示`All files upgraded successfully! ` 后代表升级成功。
* __注意1：0.12的配置文件进行了较大改动，因此不要直接将原本的配置文件用于0.12__
* __注意2: 由于0.12不支持从0.9或者更低版本升级，如果需要升级，请先升级到0.10版本__
+ * __注意3: 在文件升级完成前，最好不要进行delete操作。如果删除某个存储组内的数据且该存储组内存在待升级文件，删除会失败。__
- 如何从v0.10.x 升级到 v0.11.x?
* 0.10 与0.11的数据文件格式兼容，但写前日志等格式不兼容，因此需要进行升级（但速度很快）：
