Skip to content
体验新版
项目
组织
正在加载...
登录
切换导航
打开侧边栏
Greenplum
Gpdb
提交
d052d07b
G
Gpdb
项目概览
Greenplum
/
Gpdb
通知
7
Star
1
Fork
0
代码
文件
提交
分支
Tags
贡献者
分支图
Diff
Issue
0
列表
看板
标记
里程碑
合并请求
0
DevOps
流水线
流水线任务
计划
Wiki
0
Wiki
分析
仓库
DevOps
项目成员
Pages
G
Gpdb
项目概览
项目概览
详情
发布
仓库
仓库
文件
提交
分支
标签
贡献者
分支图
比较
Issue
0
Issue
0
列表
看板
标记
里程碑
合并请求
0
合并请求
0
Pages
DevOps
DevOps
流水线
流水线任务
计划
分析
分析
仓库分析
DevOps
Wiki
0
Wiki
成员
成员
收起侧边栏
关闭侧边栏
动态
分支图
创建新Issue
流水线任务
提交
Issue看板
体验新版 GitCode,发现更多精彩内容 >>
提交
d052d07b
编写于
11月 06, 2017
作者:
D
David Yozie
浏览文件
操作
浏览文件
下载
电子邮件补丁
差异文件
Docs - updating RG performance note
上级
ae086f9f
变更
2
隐藏空白更改
内联
并排
Showing
2 changed file
with
17 addition
and
14 deletion
+17
-14
gpdb-doc/dita/admin_guide/wlmgmt.xml
gpdb-doc/dita/admin_guide/wlmgmt.xml
+7
-6
gpdb-doc/dita/admin_guide/workload_mgmt_resgroups.xml
gpdb-doc/dita/admin_guide/workload_mgmt_resgroups.xml
+10
-8
未找到文件。
gpdb-doc/dita/admin_guide/wlmgmt.xml
浏览文件 @
d052d07b
...
@@ -11,14 +11,15 @@
...
@@ -11,14 +11,15 @@
amount of memory used to execute a query, and the relative amount of CPU devoted to processing
amount of memory used to execute a query, and the relative amount of CPU devoted to processing
a query. Greenplum Database provides two schemes to manage resources - Resource Queues and
a query. Greenplum Database provides two schemes to manage resources - Resource Queues and
Resource Groups.
</p>
Resource Groups.
</p>
<note
type=
"
warning
"
>
Significant Greenplum Database performance degradation has been observed
<note
type=
"
important
"
>
Significant Greenplum Database performance degradation has been observed
when enabling resource group-based workload management on RedHat 6.x, CentOS 6.x, and SuSE 11
when enabling resource group-based workload management on RedHat 6.x, CentOS 6.x, and SuSE 11
systems. This issue is caused by a Linux cgroup kernel bug. This kernel bug has been fixed in
systems. This issue is caused by a Linux cgroup kernel bug. This kernel bug has been fixed in
CentOS 7.x and Red Hat 7.x systems. The performance problem is mitigated in Red Hat 6 systems
CentOS 7.x and Red Hat 7.x systems.
<p>
If you use RedHat 6 and the performance with resource
that use kernel version 2.6.32-696 or higher.
<p>
SuSE 11 does not have a kernel version that
groups is acceptable for your use case, upgrade your kernel to version 2.6.32-696 or higher
resolves this issue; resource groups are considered to be an experimental feature on this platform.
<ph
to benefit from other fixes to the cgroups implementation.
</p><p>
SuSE 11 does not have a
otherprops=
"pivotal"
>
Resource groups are not supported on SuSE 11 for production
kernel version that resolves this issue; resource groups are still considered to be an
use.
</ph></p></note>
experimental feature on this platform.
<ph
otherprops=
"pivotal"
>
Resource groups are not
supported on SuSE 11 for production use.
</ph></p></note>
<p>
Either the resource queue or the resource group management scheme can be active in Greenplum
<p>
Either the resource queue or the resource group management scheme can be active in Greenplum
Database; both schemes cannot be active at the same time.
</p>
Database; both schemes cannot be active at the same time.
</p>
<p>
Resource queues are enabled by default when you install your Greenplum Database cluster.
<p>
Resource queues are enabled by default when you install your Greenplum Database cluster.
...
...
gpdb-doc/dita/admin_guide/workload_mgmt_resgroups.xml
浏览文件 @
d052d07b
...
@@ -197,14 +197,16 @@
...
@@ -197,14 +197,16 @@
<topic
id=
"topic71717999"
xml:lang=
"en"
>
<topic
id=
"topic71717999"
xml:lang=
"en"
>
<title>
Using Resource Groups
</title>
<title>
Using Resource Groups
</title>
<body>
<body>
<note
type=
"warning"
>
Significant Greenplum Database performance degradation has been observed
<note
type=
"important"
>
Significant Greenplum Database performance degradation has been
when enabling resource group-based workload management on RedHat 6.x, CentOS 6.x, and SuSE
observed when enabling resource group-based workload management on RedHat 6.x, CentOS 6.x,
11 systems. This issue is caused by a Linux cgroup kernel bug. This kernel bug has been
and SuSE 11 systems. This issue is caused by a Linux cgroup kernel bug. This kernel bug has
fixed in CentOS 7.x and Red Hat 7.x systems. The performance problem is mitigated in Red Hat
been fixed in CentOS 7.x and Red Hat 7.x systems.
<p>
If you use RedHat 6 and the performance
6 systems that use kernel version 2.6.32-696 or higher.
<p>
SuSE 11 does not have a kernel
with resource groups is acceptable for your use case, upgrade your kernel to version
version that resolves this issue; resource groups are considered to be an experimental
2.6.32-696 or higher to benefit from other fixes to the cgroups implementation.
feature on this platform.
<ph
otherprops=
"pivotal"
>
Resource groups are not supported on
</p><p>
SuSE 11 does not have a kernel version that resolves this issue; resource groups
SuSE 11 for production use.
</ph></p></note>
are still considered to be an experimental feature on this platform.
<ph
otherprops=
"pivotal"
>
Resource groups are not supported on SuSE 11 for production
use.
</ph></p></note>
<section
id=
"topic833"
xml:lang=
"en"
>
<section
id=
"topic833"
xml:lang=
"en"
>
<title>
Prerequisite
</title>
<title>
Prerequisite
</title>
<p>
Greenplum Database resource groups use Linux Control Groups (cgroups) to manage CPU
<p>
Greenplum Database resource groups use Linux Control Groups (cgroups) to manage CPU
...
...
编辑
预览
Markdown
is supported
0%
请重试
或
添加新附件
.
添加附件
取消
You are about to add
0
people
to the discussion. Proceed with caution.
先完成此消息的编辑!
取消
想要评论请
注册
或
登录