Oren Eini

aka Ayende Rahien

Oren Eini

CEO of RavenDB

a NoSQL Open Source Document Database

Get in touch with me:

oren@ravendb.net

+972 52-548-6969

Posts: 7,645

Comments: 51,243

filter by tags archive

architecture (632) rss
bugs (451) rss
challenges (137) rss
community (391) rss
databases (482) rss
design (907) rss
development (673) rss
hibernating-practices (75) rss
miscellaneous (593) rss
performance (399) rss
programming (1126) rss
raven (1495) rss
ravendb.net (585) rss
reviews (184) rss

2026
- July (3)
- June (2)
- May (2)
- April (5)
- February (4)
- January (5)
2025
- December (8)
- November (4)
- October (4)
- September (10)
- August (6)
- July (7)
- June (7)
- May (10)
- April (10)
- March (10)
- February (7)
- January (12)
2024
- December (3)
- November (2)
- October (1)
- September (3)
- August (5)
- July (10)
- June (4)
- May (6)
- April (2)
- March (8)
- February (2)
- January (14)
2023
- December (4)
- October (4)
- September (6)
- August (12)
- July (5)
- June (15)
- May (3)
- April (11)
- March (5)
- February (5)
- January (8)
2022
- December (5)
- November (7)
- October (7)
- September (9)
- August (10)
- July (15)
- June (12)
- May (9)
- April (14)
- March (15)
- February (13)
- January (16)
2021
- December (23)
- November (20)
- October (16)
- September (6)
- August (16)
- July (11)
- June (16)
- May (4)
- April (10)
- March (11)
- February (15)
- January (14)
2020
- December (10)
- November (13)
- October (15)
- September (6)
- August (9)
- July (9)
- June (17)
- May (15)
- April (14)
- March (21)
- February (16)
- January (13)
2019
- December (17)
- November (14)
- October (16)
- September (10)
- August (8)
- July (16)
- June (11)
- May (13)
- April (18)
- March (12)
- February (19)
- January (23)
2018
- December (15)
- November (14)
- October (19)
- September (18)
- August (23)
- July (20)
- June (20)
- May (23)
- April (15)
- March (23)
- February (19)
- January (23)
2017
- December (21)
- November (24)
- October (22)
- September (21)
- August (23)
- July (21)
- June (24)
- May (21)
- April (21)
- March (23)
- February (20)
- January (23)
2016
- December (17)
- November (18)
- October (22)
- September (18)
- August (23)
- July (22)
- June (17)
- May (24)
- April (16)
- March (16)
- February (21)
- January (21)
2015
- December (5)
- November (10)
- October (9)
- September (17)
- August (20)
- July (17)
- June (4)
- May (12)
- April (9)
- March (8)
- February (25)
- January (17)
2014
- December (22)
- November (19)
- October (21)
- September (37)
- August (24)
- July (23)
- June (13)
- May (19)
- April (24)
- March (23)
- February (21)
- January (24)
2013
- December (23)
- November (29)
- October (27)
- September (26)
- August (24)
- July (24)
- June (23)
- May (25)
- April (26)
- March (24)
- February (24)
- January (21)
2012
- December (19)
- November (22)
- October (27)
- September (24)
- August (30)
- July (23)
- June (25)
- May (23)
- April (25)
- March (25)
- February (28)
- January (24)
2011
- December (17)
- November (14)
- October (24)
- September (28)
- August (27)
- July (30)
- June (19)
- May (16)
- April (30)
- March (23)
- February (11)
- January (26)
2010
- December (29)
- November (28)
- October (35)
- September (33)
- August (44)
- July (17)
- June (20)
- May (53)
- April (29)
- March (35)
- February (33)
- January (36)
2009
- December (37)
- November (35)
- October (53)
- September (60)
- August (66)
- July (29)
- June (24)
- May (52)
- April (63)
- March (35)
- February (53)
- January (50)
2008
- December (58)
- November (65)
- October (46)
- September (48)
- August (96)
- July (87)
- June (45)
- May (51)
- April (52)
- March (70)
- February (43)
- January (49)
2007
- December (100)
- November (52)
- October (109)
- September (68)
- August (80)
- July (56)
- June (150)
- May (115)
- April (73)
- March (124)
- February (102)
- January (68)
2006
- December (95)
- November (53)
- October (120)
- September (57)
- August (88)
- July (54)
- June (103)
- May (89)
- April (84)
- March (143)
- February (78)
- January (64)
2005
- December (70)
- November (97)
- October (91)
- September (61)
- August (74)
- July (92)
- June (100)
- May (53)
- April (42)
- March (41)
- February (84)
- January (31)
2004
- December (49)
- November (26)
- October (26)
- September (6)
- April (10)

May 24 2010

A bug that drove me crazy!

time to read 1 min | 97 words

I am ashamed to say how much time and effort (and at least one complete re-design) this bug has cost me.

Take a look at the following test, meant to show that Raven can replicate deletes between servers:

There is a very subtle bug in this code, which completely tripped me.

Here is a hint, the session interface is the high level client API for Raven.

Can you spot the bug?

0 comments

Tags:

Bugs

Comments

Comment preview

Comments have been closed on this topic.

Markdown turns plain text formatting into fancy HTML formatting.

Phrase Emphasis

*italic*   **bold**
_italic_   __bold__

Links

Inline:

An [example](http://url.com/ "Title")

Reference-style labels (titles are optional):

An [example][id]. Then, anywhere
else in the doc, define the link:
  [id]: http://example.com/  "Title"

Images

Inline (titles are optional):

![alt text](/path/img.jpg "Title")

Reference-style:

![alt text][id]
[id]: /url/to/img.jpg "Title"

Headers

Setext-style:

Header 1
========
Header 2
--------

atx-style (closing #'s are optional):

# Header 1 #
## Header 2 ##
###### Header 6

Lists

Ordered, without paragraphs:

1.  Foo
2.  Bar

Unordered, with paragraphs:

*   A list item.
    With multiple paragraphs.
*   Bar

You can nest them:

*   Abacus
    * answer
*   Bubbles
    1.  bunk
    2.  bupkis
        * BELITTLER
    3. burper
*   Cunning

Blockquotes

> Email-style angle brackets
> are used for blockquotes.
> > And, they can be nested.
> #### Headers in blockquotes
> 
> * You can quote a list.
> * Etc.

Horizontal Rules

Three or more dashes or asterisks:

---
* * *
- - - -

Manual Line Breaks

End a line with two or more spaces:

Roses are red,   
Violets are blue.

Fenced Code Blocks

Code blocks delimited by 3 or more backticks or tildas:

```
This is a preformatted
code block
```

Header IDs

Set the id of headings with {#<id>} at end of heading line:

## My Heading {#myheading}

Tables

Fruit    |Color
---------|----------
Apples   |Red
Pears	 |Green
Bananas  |Yellow

Definition Lists

Term 1
: Definition 1
Term 2
: Definition 2

Footnotes

Body text with a footnote [^1]
[^1]: Footnote text here

Abbreviations

MDD <- will have title
*[MDD]: MarkdownDeep

FUTURE POSTS

No future posts left, oh my!

RECENT SERIES

API Design (10):
29 Jan 2026 - Don't try to guess
Recording (20):
05 Dec 2025 - Build AI that understands your business
Webinar (8):
16 Sep 2025 - Building AI Agents in RavenDB
RavenDB 7.1 (7):
11 Jul 2025 - The Gen AI release
Production postmorterm (2):
11 Jun 2025 - The rookie server's untimely promotion

View all series

Syndication

Main feed
Comments feed

Oren Eini

CEO of RavenDB

Related posts that you may find interesting:

Comments

Comment preview

Markdown formatting

Phrase Emphasis

Links

Images

Headers

Lists

Blockquotes

Horizontal Rules

Manual Line Breaks

Fenced Code Blocks

Header IDs

Tables

Definition Lists

Footnotes

Abbreviations

FUTURE POSTS

RECENT SERIES

RECENT COMMENTS

Syndication