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g CRKylin 以 Key-Value 的方式将 Cube 存储到 HBase 中,HBase 的 key,也就是 Rowkey,是由各维度的值拼接而成的;为了更高效地存储这些值,Kylin 会对它们进行编码和压缩;每个维度均可以选择合适的编码(Encoding)方式,默认采用的是字典(Dictionary)编码技术;字段支持的基本编码类型如下:F T w
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W hhKylin官方案例表简要说明KYLIN_SALES 事实表字段详解:KYLIN_CATEGORY_GROUPINGS主要字段:KYLIN_CATEGORY_GROUPINGS 对外连接关系:KYLIN_CATEGORY_GROUPINGS 主要字段解释:KYLIN_COUNTRY 主要字段详解:KYLIN_ACCOUNT 主要字段详解:雪花模型关系总览:Kylin 官方模型 model关系图如下:第一步:雪花和星型模型,建立inner join关系,重要的是确定字段关联,对于角色维度(KYLIN_ACCOUNT和KYLIN_COUNTRY),需要别名处理。hr X
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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 f B U pC m
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如图2-15所示,先通过在“Includes”中选择要添加的维度到本聚合组中,然后根据模型特征和查询模式,设置高级维度属性。“Hierarchy Dimensions”和“Joint Dimensions”可以设置多组,但要注意,一个维度出现在某个属性中后,将不能再设置另一种属性。但是一个维度,可以出现在多个聚合组中。S u g C Oa
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S Ly Ron / WB4HFN -------------- Original message -------------- From: Garey Barrell <[EMAIL PROTECTED]> > > Garey Barrell made an utterance to the drakelist gang > ---------------------------------------------------------------------- > Byron - > > OK. Relays take more coil current to "pull in" than they do to "hold > in". It takes a certain amount of current through the coil (pull) to > drag the armature from it's non-energized position to the energized > position. It takes much less current to (hold) it once there, so slight > leakage might NOT be sufficient to pull, but more than enough to hold. > > I don't know of any good way to touch up the panels. The original > "paint" is so thin, (I actually think it is more a dye (anodize?) than > paint, but don't know for sure,) and as a result any sort of paint ends > up looking worse than the mark! For a small mark or two, it might be > possible to just "fill" the mark to the level of the panel, but a string > of numbers would be a real challenge. Never could understand people > that do that sort of thing, especially on the front panel!! > > I just saw your order. There are scans of both the 34-NB and the 34-PNB > manuals, with quite a bit of information, plus I have added a photograph > of the board itself with active components and alignment info > annotated. There is also a Voltage table for the NB, which has not been > previously published. It's really a straightforward design, and most > units in the field benefit from an alignment. > > A lot of the components are common between the TR-3 and TR-4, but every > once in a while they threw in a curve like that cap to keep us off > balance! :-) > > Your CDs will go out tomorrow. Thank you! > > 73, Garey - K4OAH > Glen Allen, VA > > Drake 2-B, 4-B, C-Line & TR-4/C Service Supplement CDs > > > > > Byron Tatum wrote: > > > > "Byron Tatum" made an utterance to the drakelist gang > > ---------------------------------------------------------------------- > > 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!! > > CUL, Byron. > > ----- Original Message ----- From: "Garey Barrell" > > To: > > Sent: Tuesday, April 29, 2008 1:46 PM > > Subject: Re: [drakelist] TR-4 TX Hang-Up > > > > > >> Byron - > >> > >> Well things were going well until you pulled the tube out of the > >> socket! :-) > >> > >> There are a limited number of possibilities in that case. The relay > >> coil leads go through the feedthrough bypass caps _under_ the power > >> connector. Of course the relay lead to the 6EV7 is the one UNDER the > >> Jones connector, the last one in the "arc" of feedthroughs there. > >> (C92) There are no more components between this feedthrough and the > >> 6EV7 tube socket. The other relay coil lead goes directly the +250V bus > >> via the next feedthrough cap along the arc, (C91). So the voltage > >> measured at the tube socket pin with the tube out should be exactly the > >> same as the +250V bus. Any drop would indicate leakage. See attached > >> photo from my CD (at reduced resolution). > >> > >> So..... Leaky C92, leaky tube socket, pinched wire. One possibility I > >> have seen a few times is the "down" stop on the relay gets hammered down > >> over the years, allowing the armature to actually touch the pole piece > >> of the coil. The pole piece is slightly magnetized, and if the armature > >> physically is in contact with it, it will "stick". An easy check is to > >> slip a piece of paper in to prevent metal to metal contact between the > >> two. The "down" stop can be bent back up to prevent this contact. > >> > >> Let us know what you find!! > >> > >> 73, Garey - K4OAH > >> Glen Allen, VA > >> > >> Drake 2-B, 4-B, C-Line & TR-4/C Service Supplement CDs > >> > >> > >> > >> > >> Byron Tatum wrote: > >>> 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. > >>> > >> > > > > > > ---------------------------------------------------------------------- > > Submissions: [EMAIL PROTECTED] > > Unsubscribe: [EMAIL PROTECTED] - unsubscribe drakelist in > > body > > Hopelessly Lost: [EMAIL PROTECTED] - help in body of message > > Zerobeat Web Page: - sponsored by > > ---------------------------------------------------------------------- > > > > > > ---------------------------------------------------------------------- > Submissions: [EMAIL PROTECTED] > Unsubscribe: [EMAIL PROTECTED] - unsubscribe drakelist in body > Hopelessly Lost: [EMAIL PROTECTED] - help in body of message > Zerobeat Web Page: - sponsored by > ---------------------------------------------------------------------- n E b
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也正因为 Apache Kylin 社区是开源社区,所有用户和 Committer 都是志愿进行贡献的,所有的讨论和求助是没有 SLA(Service Level Agreement)的。为了提高讨论效率、规范提问,建议用户在撰写邮件时详细描述问题的出错情况、重现过程、安装版本和 Hadoop 发行版版本等,并且最好能提供相关的出错日志。另外,因为用户的全球化,建议提问时使用英文撰写邮件内容、至少保证邮件主题使用英文。有一篇关于如何提问的How To Ask Questions The Smart Way 文章,推荐阅读。
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支持标准SQL接口:Kylin以标准的SQL作为对外服务的接口。支持超大规模数据集:Kylin对大数据的支撑能力是目前所有技术中较为领先的。早在2015年eBay的生产环境中就能支持百亿条记录的秒级查询,之后在移动的应用场景中又有了支持千亿条记录的秒级查询的案例。亚秒级响应:Kylin拥有优异的查询响应速度,这点得益于预计算,很多复杂的计算,比如,连接、聚合,在离线的预计算过程中就已经完成,这大大降低了查询时刻所需的计算量,提高了响应速度。高伸缩性和高吞吐率:单节点Kylin可实现每秒70个查询,还可以搭建Kylin的集群。BI工具集成。Kylin可以与现有的BI工具集成。 Nm SwS C
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在Apache Kylin一条查询的执行过程主要分成四个部分:词法分析、逻辑执行计划、物理执行计划和执行。以如下SQL语句为例:zD s
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. F ji
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