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Apache Kylin目前提供的Cube构建引擎有两种:MapReduce和Spark(如图2-20所示)。如果你的 Cube只有简单度量(如SUM、 MIN、MAX),建议使用Spark。如果Cube中有复杂类型度量(如COUNT DISTINCT、 TOP_N),建议使用MapReduce。 呼伦贝尔季闪电子科技有限公司 J O
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8. Vivid Interior Photos: Scroll through vivid interior photos of homes ? G
目前官方已在最新版本2.6.6与3.0.2中修复了该漏洞,请受影响的用户尽快升级版本进行防护,官方下载链接: X
在未来,Apache Kylin还有可能为特定场景、特定类型的维度量身定制特别的编码方式,如在很多行业,身份证号码可能是一个重要的维度。但是身份证号码由于其特殊性而不能使用整数类型的编码(身份证号码的最后一位可能是X),其高基数的特点也决定了其不能使用Dict编码,在目前的版本中只能使用Fixed_length编码,但显然Fixed_length不能充分利用身份证号码中大部分字节是数字的特性来进行深度编码,因此存在一定程度的存储空间的浪费。 N
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Hello- I have an unusual problem perhaps someone could shed some light on: I have a TR-4 in 29K serial range that functions normally except it will not go back into receive, until after approx 30 second delay, after the mic button is released or the function switch turned back to "SSB". This condition worsens (longer delay) the more you frequently you transmit. The sidetone disappears but T-R relay will not release. I have tried different known-good 6EV7 tubes, have replaced a lot of the coupling / bypass caps in T-R circuits, did resistance / voltage checks, adjusted the VOX / VOX delay controls, tried other tubes in T-R circuit, etc. to no avail. What is real curious about this is that while waiting for it to go back into receive and T-R relay is engaged, IF YOU PULL THE 6EV7 FROM ITS SOCKET THE T-R RELAY STILL DOES NOT RELEASE. I suspect the issue is with the lead that goes from T-R relay coil to pin #1 on 6EV7 (somehow allowing enough leakage to ground?) or could it be the T-R relay coil itself I made sure socket / pins and all are clean on 6EV7. Any help appreciated, thanks. Perplexed, Byron WA5THJ. X
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G用户选择的维度中常常会出现具有层级关系的维度。例如对于国家(country)、省份(province)和城市(city)这三个维度,从上而下来说国家/省份/城市之间分别是一对多的关系。也就是说,用户对于这三个维度的查询可以归类为以下三类:长春撕尉矫建筑材料集团有限公司 U
2. 增量构建 J Radar is an electronic device that detects planes, ships, coastlines, landmarks, and even storm clouds. The name radar comes from the first letters of the words radio direction and ranging. As the human eye uses light waves to see, radar "sees" with radio waves. Without radar, planes could not land safely in bad weather and ships could not move safely in thick fog. A
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Fiverr Freelancer Upwork 铮? D每一个 Snapshot 是和一个 Hive 维度表对应的,生成的过程是: K
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另外,Kylin开发团队还贡献了 Zeppelin 的插件,用户可以使用 Zeppelin 访问 Kylin 服务。 ZA:当应用程序报“磁盘空间不足”(disk full)时,通常首先是普通用户没有空间创建或扩展文件了,很可能导致用户无法登录。但一般来说系统管理员(root)仍然可以登录执行一些管理操作,如删除掉一些临时文件,如/tmp目录、/var/log目录下的一些内容,恢复出一些磁盘空间。如需增加空间,可考虑为分区扩容。一种办法是新创建分区(可能需要新加硬盘),然后将该分区挂载(mount)到某个空间占用比较大的目录下,如/opt、/home,并将原目录里的内容转移到新分区中,然后修改/etc/fstab,使该分区缺省即挂载到指定目录。另一种办法需要空间不足的分区是LVM(逻辑卷)格式,此时可以使用pvcreate创建一个新LVM物理卷,使用lvextend扩展空间不足的逻辑卷,然后用resize2fs扩展该分区(需要卸载该分区,如是/分区,则需要到rescue shell下操作),相关命令使用请参阅lvm相关手册。建议谨慎使用。 铮?D
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第二,在Apache Kylin中进行查询时,使用SQL语句中的表名、列名、度量、连接关系等条件,来匹配数据模型和Cube;在设计Cube的时候,就要充分考虑查询的需求,避免遗漏表、列等信息。 铮?M V
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After choosing a plan?on Bluehost, you’ll be able to choose your domain name (which is included for FREE in your annual hosting plan) — either a brand new one or you’ll have the option to transfer one you’ve already purchased. 铮? B丹东纪巧头信用担保有限公司
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我们已将面向用户的 Kylin 镜像上传至 docker 仓库,用户无需在本地构建镜像,只需要安装docker,就可以体验kylin的一键安装。 K 铮?A
e. Rent Furniture: Rent furniture at affordable prices M Hello- I have an unusual problem perhaps someone could shed some light on: I have a TR-4 in 29K serial range that functions normally except it will not go back into receive, until after approx 30 second delay, after the mic button is released or the function switch turned back to "SSB". This condition worsens (longer delay) the more you frequently you transmit. The sidetone disappears but T-R relay will not release. I have tried different known-good 6EV7 tubes, have replaced a lot of the coupling / bypass caps in T-R circuits, did resistance / voltage checks, adjusted the VOX / VOX delay controls, tried other tubes in T-R circuit, etc. to no avail. What is real curious about this is that while waiting for it to go back into receive and T-R relay is engaged, IF YOU PULL THE 6EV7 FROM ITS SOCKET THE T-R RELAY STILL DOES NOT RELEASE. I suspect the issue is with the lead that goes from T-R relay coil to pin #1 on 6EV7 (somehow allowing enough leakage to ground?) or could it be the T-R relay coil itself I made sure socket / pins and all are clean on 6EV7. 铮?X
强制维度(Mandatory Dimensions):指的是那些总是会出现在Where条件或 Group By语句里的维度。通过指定某个维度为强制维度,Apache Kylin可以不预计算那些不包含此维度的Cuboid,从而减少计算量。 X信阳门行教育咨询有限公司
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在Apache Kylin界面的“Model”页面,点击“New”→“New Model”命令,开始创建数据模型。给模型输入名称后,选择一个事实表(必需的),然后添加维度表(可选),如图2-4所示。 铮? TAfter choosing a plan?on Bluehost, you’ll be able to choose your domain name (which is included for FREE in your annual hosting plan) — either a brand new one or you’ll have the option to transfer one you’ve already purchased. 铮? W
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CUL, Byron. ----- Original Message ----- From: "Garey Barrell" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Tuesday, April 29, 2008 1:46 PM Subject: Re: [drakelist] TR-4 TX Hang-Up O 铮?Y
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Michael Violi is a Self Employed Ticket Broker. You can find him?on Twitter at @theticketwizard. F 铮?Z
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Cube中所有维度的基数可以体现Cube的复杂度,如果一个Cube中有多个超高基数维度,那么这个Cube膨胀的几率就会很高。在创建Cube前对所有维度的基数做一个了解,可以帮助设计合理的Cube。计算基数有多种途径,最简单的方法就是让Hive执行一个count distinct的SQL查询,同时Apache Kylin也提供了计算基数的方法,这部分内容会在2.4.1节中进行介绍。 C
OLAP需要以大量历史数据为基础,配合时间点的差异并对多维度及汇整型的信息进行复杂的分析。
OLAP需要用户有主观的信息需求定义,因此系统效率较高。
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"Byron Tatum" <[EMAIL PROTECTED]> made an utterance to the drakelist gang
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Hey Garey-
Thank you for the comments and help. I start nights at work and
will have several to complete, then I will get back into the TR-4. I
will measure voltage as you suggest, looking for a slight voltage
drop. Then I will check out relay itself.
I am beginning to think that it is the magnetizing of pole piece
and relay wear that is the problem. If it was a leakage to ground on
the 6EV7 pin #1 lead you might think the set would go into TX on its
own (relay energize) every now and then, of which I have never saw it do.
One other thing- I bought a nice TR-4 from a fellow, based on
several pictures, but the photo angles, due to glare, covered up (of
all things) a ham's DL # engraved on the front panel in tiny lettering
, immediately to the right of "TR-4" on front panel. Do you know of a
touch up paint that matches the darker grey of that front panel area?
I got the set for a decent price, it was nice and had the built in
NB, but had a problem (as advertised). I found T-9 to be burned out in
center area of coil form. I had a spare T-9 from a parts unit TR-3.
Thank goodness I opened up the TR-3 T-9 transformer before I installed
it -- it had a 56 pF cap in it that was not in the TR-4 T-9. Otherwise
the coils looked the same. Anyway, I clipped out the capacitor and all
went OK after the repair. That is not a fun repair for sure!!
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