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LevelDB is widely noted for being unreliable and databases it manages are prone to corruption. Academic studies of past versions of LevelDB have found that, under some file systems, the data stored in those versions of LevelDB might become inconsistent after a system crash or power failure.
LevelDB corruption is so commonplace that corruption detection has to be built in to applications that use it. In summary, the complaints about LevelDB are:. Is LevelDB working as expected? This migration was the right choice? As someone who was involved in doing that migration at the time, I believe it was the right decision.
LevelDB is far from perfect, but I wouldn't know what else to use. While database corruptions are reported relatively frequently these days, my belief is that it's mostly hardware failures or driver issues. Bitcoin Core tends to stress disks, memory and CPUs far more than most software, which makes otherwise invisible issues pop up. Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Start collaborating and sharing organizational knowledge.
Create a free Team Why Teams? Learn more. Asked 5 years, 1 month ago. Modified 5 years, 1 month ago. Viewed 5k times. Similar statements were done by bitcoin core developers : LevelDB - an open-source rewrite of Google's own database system - was designed for efficiency and consistency on commodity hardware, and outperforms BDB by an order of magnitude in some settings. According to LevelDB page at Wikipedia : LevelDB is widely noted for being unreliable and databases it manages are prone to corruption.
In summary, the complaints about LevelDB are: unreliable and databases are prone to corruption several bugs due to fundamental flaws poor code quality no longer actively maintained i. Improve this question. Community Bot 1. Mark Messa Mark Messa 4 4 silver badges 14 14 bronze badges. Informally, I can tell you that blockchain index corruption during crashes is very common, and I usually tell affected users to redownload the blockchain.
Sorry, I don't know. Add a comment. Sorted by: Reset to default. Highest score default Date modified newest first Date created oldest first. In particular: BDB is much slower for our usage large atomic batch writes, small random reads. There were reports of database corruption as well with BDB, at a time when it was used far less intensively than LevelDB is now. BDB is very painful to upgrade.
My impression is that it was designed for setups where a database upgrade only happened with professional supervision. In particular, the write log files created for durability were sometimes not readable by later versions. You have completed some achievement on Steemit and have been rewarded with new badge s :.
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