1 月 9 日两次个别的服务受阻

BitMEX 在 1 月 9 日曾出现了两次个别的服务受阻。

北京时间时间 10:44:10,WebSocket API 性能曾下降了一分钟,有 7% 的客户命令发送失败。其后的连接在 1% 的命令失败率下运行,直到服务器在北京时间 10:47:00 回复正常

在此期间,客户可能也发现某些市场数据 REST 端点的响应时间有所增加。这是由于在短时间
内 API 服务器陆续重启所致。

此外,在北京时间 13:48:10 和北京时间 14:10:10 ,由于引擎繁忙,BitMEX 曾出现了约 30 秒的服务受阻,当时所提交至交易引擎的委托均被卸载了。在此期间,客户也会发现 WebSocket API 没有更新。服务受阻的原因是定期进行的市场数据分布组件引发了资料重放问题。

在这些服务受阻期间的数据均未丢失,并且已经部署了用于防止类似情况影响交易引擎的附加安
全机制。我们已确定了根本原因所在,目前正在进行永久性修复,以防止问题再次发生。随后将会有相关更新。

对您造成的不便,我们深表歉意。如果您有任何问题,请联系客服。

 

 

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Update: fix for root cause of last week’s issue

In response to last week’s post, yesterday we successfully released an enhancement to our internal market data distribution component’s re-subscription logic. This addresses the root cause of the previous week’s issue and along with the additional safety mechanism to prevent impact to the trading engine deployed at the time, we don’t anticipate a reoccurrence of last week’s issue.

Two unrelated minor outages on 9 January

On 9 January BitMEX experienced two unrelated minor outages.

At 02:44:10 UTC the WebSocket API saw a degradation in performance for a minute where 7% of commands sent by clients failed. Connections continued undergoing a 1% failure rate of commands until servers recovered at 02:47:00 UTC.

Clients may have also seen an increase in response times for some market data REST endpoints up during this period. This was due to a rolling restart of the API servers that occurred in too tight of a timeframe.  

In addition, at 05:48:10 UTC and 06:10:10 UTC, BitMEX experienced minor outages for approximately 30 seconds whereby requests to the trading engine were load-shed as the engine was busy. During these times, clients would have observed a lack of updates over the WebSocket API for the same reason. The outages were due to data replay complications during a regularly scheduled market data distribution component restart.  

There was no data loss during these events and an additional safety mechanism to prevent a similar situation from impacting the trading engine has already been deployed. The root causes have also been identified and we are currently working on permanent fixes to prevent a recurrence. Updates will follow in the future.

We apologise for the inconvenience. If you have any questions, please contact customer support.

Postmortem: Downtime, 27 December 2018

On 27 December at 18:38 UTC, BitMEX experienced a minor outage for approximately 1 minute whereby the trading engine was unavailable. During this time, market data updates were not published over the Websocket API.

Additionally, REST API queries for trading related data (read-only HTTP GET requests, not order management requests) took longer to return than usual over a period of 23 minutes from 18:13 UTC to 18:36 UTC.

The root causes of both issues have been identified and we are working on permanent fixes to prevent a recurrence. Updates will follow in the future.

We apologise for the inconvenience. If you have any questions, please contact customer support.

比特币和山寨币季度定期合约更新

于 2018 年 12 月 17 日, BitMEX 将推出 2019 年 3 月到期的 ADA,BCH,EOS,ETH,LTC,TRX 和 XRP 季度定期合约:

  • BitMEX 卡尔达诺 / 比特币 2019 年 3 月 29 日定期合约( ADAH19 )
  • BitMEX 比特币现金 / 比特币 2019 年 3 月 29 日定期合约( BCHH19 )
  • BitMEX EOS 代币 / 比特币 2019 年 3 月 29 日定期合约( EOSH19 )
  • BitMEX 以太币 / 比特币 2019 年 3 月 29 日定期合约( ETHH19 )
  • BitMEX 莱特币 / 比特币 2019 年 3 月 29 日定期合约( LTCH19 )
  • BitMEX 波场币 / 比特币 2019 年 3 月 29 日定期合约( TRXH19 )
  • BitMEX 瑞波币 / 比特币 2019 年 3 月 29 日定期合约( XRPH19 )

在同一天,BitMEX 将推出 2019 年 6 月到期的比特币季度定期合约:

  • BitMEX 比特币 / 美元 2019 年 6 月 28 日定期合约( XBTM19 )

 

 

 

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New Bitcoin and Altcoin Quarterly Futures Contracts

On 17th December 2018, the March 2019 quarterly ADA, BCH, EOS, ETH, LTC, TRX, and XRP futures contracts will be listed:

  • BitMEX Cardano / Bitcoin 29 March 2019 futures contract (ADAH19)
  • BitMEX Bitcoin Cash / Bitcoin 29 March 2019 futures contract (BCHH19)
  • BitMEX EOS Token / Bitcoin 29 March 2019 futures contract (EOSH19)
  • BitMEX Ether / Bitcoin 29 March 2019 futures contract (ETHH19)
  • BitMEX Litecoin / Bitcoin 29 March 2019 futures contract (LTCH19)
  • BitMEX Tron / Bitcoin 29 March 2019 futures contract (TRXH19)
  • BitMEX Ripple / Bitcoin 29 March 2019 futures contract (XRPH19)

On the same date, the June 2019 quarterly BTC futures contract will be listed:

  • BitMEX BTC / USD 28 June 2019 futures contract (XBTM19)

比特币现金硬分叉及对 BCHZ18 的影响

BitMEX 政策

比特币现金预计将于 2018 年 11 月 15 日进行硬分叉升级。有两个竞争且不兼容的硬分叉升级提议,相关的客户端分别是比特币 ABC 和比特币 SV 。因此,很有可能出现链条分叉;在硬分叉前持有 BCH 的用户最终可能会在分叉的两条链上都持有相应的代币。  

 

在结算时, BCHZ18 合约将以拆分后比特币 ABC 的价格作为结算价格,并且不包括比特币 SV 的价格。  

 

这与比特币现金最初于 2017 年 8 月从比特币拆分开时 BitMEX 所采用的方法一致。比特币/美元合约根据当时的比特币价格结算,且并未反映比特币现金的价格。


对 BitMEX .BBCHXBT 指数的影响

BitMEX .BBCHXBT 指数目前由以下成份交易所组成:

 

*  Poloniex + *  Binance + * Kraken  

 

在分叉时,如果成份交易所使用 BCH / XBT 符号作为 BCHABC 链条上的价格,则 BitMEX 将保留该符号为参考,否则 BitMEX 将以 BCHABC / XBT 符号作为指数价格的一部分。

 

受影响的产品

BCHZ18

 

其他资料

欲了解更多信息, B​​itMEX 研究已经赞助了一个新的网站 ForkMonitor.info ,以帮助所有利害关系人在分叉当天关注该事件。

 

 

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Bitcoin Cash Hardfork Policy and Impact on BCHZ18

BitMEX Policy
Bitcoin Cash is expected to conduct a hardfork upgrade on 15 November 2018. There are two competing incompatible hardfork upgrade proposals, with the associated clients being Bitcoin ABC and Bitcoin SV. Therefore, there could be a chainsplit; users holding BCH prior to the hardfork could end up with coins on both sides of the split.

On settlement, the BCHZ18 contract will settle at a price on the Bitcoin ABC side of any split and will NOT include the value of Bitcoin SV.

This is consistent with the approach BitMEX took when Bitcoin Cash initially split off from Bitcoin in August 2017. The Bitcoin / USD contracts were settled based on the Bitcoin price at the time and did not reflect the price of Bitcoin Cash.

Impact on the BitMEX .BBCHXBT Index
The BitMEX .BBCHXBT Index is currently comprised of the following constituent exchanges:

⅓ * Poloniex + ⅓ * Binance + ⅓ * Kraken

At the time of the fork, if the constituent exchanges use the BCH/XBT symbol for the BCHABC chain then BitMEX will keep that symbol as a reference, otherwise BitMEX will refer to the relevant BCHABC/XBT symbol to be used as part of the Index.

Product Affected
BCHZ18

Further Information
For more information, BitMEX Research has sponsored a new website, ForkMonitor.info, to assist stakeholders monitoring events on the day of the expected split.