Hi Manoj,
You can configure it using "kylin.metrics.prefix" configuration in the
kylin.properties file. Maybe it is better to use "DEFAULT" for this
configuration by default.
At 2018-04-02 22:26:56, "Kumar, Manoj H" wrote:
Can it be possible to create the table in project Database as we d
Re:RE: kylin 2.3.1 - System Cube Tables
Thanks for the input.. Let me try it out & I will update you.
Regards,
Manoj
From: Ma Gang [mailto:mg4w...@163.com]
Sent: Wednesday, April 04, 2018 2:30 PM
To:user@kylin.apache.org
Subject: Re:RE: kylin 2.3.1 - System Cube Tables
Hi Manoj,
You c
You may check the region server log, is the related region server OOM or
overload?
在 2018-04-24 13:47:08，"沈鲁威" 写道：
>
>异常补充
>ylin.log:Caused by: org.apache.hadoop.hbase.DoNotRetryIOException:
>org.apache.hadoop.hbase.DoNotRetryIOException: Coprocessor passed deadline!
>Maybe server is overload
Hi,
Currently you can set the configuration:
"kylin.storage.partition.max-scan-bytes", to limit the scan bytes for each
region to prevent possible OOM in region server, by default it is set to 3GB,
and the configuration can be set in cube level.
In our private Kylin env, we add two new configur
Hi Kumar,
The dashboard data is from system cube, not from jmx, you can run sql in
'KYLIN_SYSTEM' project to check whether the data has been collected correctly
or not:
"select KDAY_DATE, count(1) from HIVE_METRICS_QUERY_PROD where KDAY_DATE >
'2018-05-01' group by KDAY_DATE order by KDAY_DATE d
You may check the file: logs/kylin.out
At 2018-09-26 15:16:23, "Francis Liang" wrote:
Hi:
I am using kylin-2.5.0-bin-cdh57 and want to output kylin sever logs to
console. I modified the conf/kylin-server-log4j.properties file as follows:
log4j.appender.file=org.apache.log4j.RollingF
That may caused by the sql that use preparedStatement didnot hit any cube,
@guofeng, could you provide the sql?
| |
Ma Gang
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邮箱：mg4w...@163.com
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Signature is customized by Netease Mail Master
On 10/13/2018 22:41, ShaoFeng Shi wrote:
It looks more like a bug related with prepared statement
tCache":false,
...
}
At 2018-10-13 23:16:13, "Ma Gang" wrote:
That may caused by the sql that use preparedStatement didnot hit any cube,
@guofeng, could you provide the sql?
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Ma Gang
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邮箱：mg4w...@163.com
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Signature is customized by Netease Mail Master
On 10/13
when there is no realization exists in the
OLAPContext.
在 2018-10-14 00:06:24，"Ma Gang" 写道：
@guofeng,
You may first disable the preparestatement cache to see it works or not, it can
be disabled by setting the "enableStatementCache" field to false in the sql
Disable the preparedStatement cache should workaround this issue per my test,
it can be disabled by setting the "enableStatementCache" field to false in the
sql request, like:
{
"sql":"...",
"project":"...",
"enableStatementCac
No, that doesn't work.
在 2018-10-14 10:53:44，"jinhongfei" 写道：
@Ma Gang
Hello
kylin.properties中把这个配置项
#kylin.query.cache-enabled=true
改成
kylin.query.cache-enabled=false
是不是就禁用enableStatementCache=false了啊？
--
靳洪飞
百乘金科/金蛋分期/技术部
北京
ards
Billy Liu
Luke Han 于2018年10月16日周二下午11:28写道：
>
> I am very pleased to announce that the Project Management Committee (PMC) of
> Apache Kylin has asked Allen Ma (Gang Ma) to become Apache Kylin committer,
> and he has already accepted.
>
> Allen has already made many
The error means the HBase coprocessor execution timeout, you need to identify
why it is timeout:
1. Is the cube design not properly, so coprocessor need to scan too many rows
to do runtime aggregation or can not skipped rows efficiently if the rowkey is
not properly designed?
2. Is the related r
Is the column 'fzy_bill_code' from fact table? If so, the issue should have
been fixed in https://issues.apache.org/jira/browse/KYLIN-3360, you need to
enable dynamic column configuration.
At 2018-10-23 14:11:46, "you Zhuang" wrote:
http://apache-kylin.74782.x6.nabble.com/about-count-a-partic
You may set the configuration 'kylin.query.enable-dynamic-column' to true in
kylin.properties, and test it.
At 2018-10-23 15:15:00, " 宋海涛" wrote:
Hi Ma Gang,
Thank you for your reply. The column ‘fzy_bill_code’ is from fact table.
But what do you mean a
You may post your query related log here, there should be some query log that
indicated whether the filter is push down or not, at least in the returned
response stats, there's some log show how many rows are filtered in the
coprocessor side.
At 2018-10-23 16:58:36, "Sachin Aggarwal" wrote:
>
Hi Shrikant,
The log indicated that your query needs data from a snapshot lookup table(your
query columns should contain some derived columns defined in the cube), but the
snapshot is very large, so the query is very slow. You may check the snapshot
size in the lookup table's snapshot tab in K
fic module(s) as
required for tracing latencies -- would you please suggest any classes which
can provide me these details?
Regards,
Shrikant Bang.
On Tue, Oct 23, 2018 at 3:09 PM Ma Gang wrote:
You may post your query related log here, there should be some query log that
indicated whether the
as I remember, this is related to cube planner feature, because the cube
planner algorithm will run after the statistics step, and it will change the
cuboid tree structure defined by static rules, also the layer’s number will be
changed accordingly, if use the original layer number some layer cu
Awesome! Looking forward to the improvement. For dictionary, keep the
dictionary in query engine, most time is not good since it brings lots of
pressure to Kylin server, but sometimes it has benefit, for example, some
segments can be pruned very early when filter value is not in the dictionary,
und in the attachment of jira:
https://issues.apache.org/jira/browse/KYLIN-3654.
This is just the first version, any comments and pull request are welcome!
Thanks,
Ma,Gang
Thanks ShaoFeng,
The plan looks good.
At 2019-03-25 09:24:00, "ShaoFeng Shi" wrote:
Hello,
About two months ago, we raised the "[Discuss] Moving toward Apache Kylin 3.0"
in the developer group, all agree to use 3.0 as the next major release version
when the Real-Time feature released. Now
+1, looking forward to it.
At 2019-05-30 14:29:24, "ShaoFeng Shi" wrote:
>Hello Kylin developers and users,
>
>
>
>We (Kyligence Inc) planned to host the first "Kylin Data Summit" event at
>Shanghai, China. This event is going to provide a place to share, discuss
>the technology and trends in B
9.0 cannot work, but
not sure 0.9.x can work or not
| |
Ma Gang
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邮箱：mg4w...@163.com
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签名由 网易邮箱大师 定制
On 06/13/2019 18:01, Andras Nagy wrote:
Greetings,
I have a few questions related to the new streaming (real-time OLAP)
implementation.
1) Is there a way to have data reprocessed from
rhaps this is
something that's only available on the API?)
Many thanks,
Andras
On Thu, Jun 13, 2019 at 1:14 PM Ma Gang wrote:
Hi Andras,
1)yes, you can specify a configuration in the new cube, to consume data from
start offset
2)It should work, but I haven't tested it yet
3)as
cube, it should be a bug
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Ma Gang
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邮箱：mg4w...@163.com
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签名由 网易邮箱大师 定制
On 06/27/2019 11:31, Xiaoxiang Yu wrote:
Hi,
As far as I know, "best practice"(in my mind) of lambda mode should looks
like this. Here, I use "batch segment" to refer to segment which source fr
Hi Andras,
Yes, Kylin real-time assignments currently is stored in zookeeper, you need to
backup the streaming metadata information, and restored to the new zookeeper.
If you don't care the previous assignments and the real-time data, you can just
disable the cube, and enable it to start strea
Hi Shaofeng,
Yes, that's true, the server address changed, the previous assignment info
makes no sense anymore
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Ma Gang
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邮箱：mg4w...@163.com
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签名由 网易邮箱大师 定制
On 06/28/2019 18:19, ShaoFeng Shi wrote:
Hi Gang,
On the cloud, after the cluster re-creation, the RT nodes' addr
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