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## Problem
Currently OpenSearch uses an implementation of Tiered Merge policy for compaction. Tiered Merge policy is suited for write intensive workload as it has lower write amplification. A disad…
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> Note: Please use Issues only for bug reports. For questions, discussions, feature requests, etc. post to dev group: https://www.facebook.com/groups/rocksdb.dev
Get is 10% to 30% slower. Maybe thi…
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When running `bench_kv` in release mode, found the following panic:
```plain
left: `[]`,
right: `[118, 52, 51, 57, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 3…
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As reported in https://lore.kernel.org/selinux/c02674c970fa292610402aa866c4068772d9ad4e.camel@btinternet.com/ and https://lore.kernel.org/selinux/afa57a834d8643886f6e0d743c3ee04eecd85fe9.camel@btinter…
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In universal, whole levels are compacted together to satisfy two conditions:
1. total size / bottommost level size > a threshold, or
2. total number of sorted runs (non-0 levels + L0 files) is wit…
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首先，在磁盘中之所以所使用B+树进行文件存储，主要原因是由于B+树相对于平衡二叉树来说，树的高度大大降低，由于磁盘本身一个顺序读写快、随机读写满的特点，所以对于高效操作磁盘势必要求减少磁盘读写次数（尤其是寻道次数）。
PS：平衡二叉树的缺点在于每个节点的子节点就俩，所以查询数据需要频繁读取节点，而这些节点的读写又带来大量磁盘读写；而B+树使用了多叉树+每个节点可包含若干值，从而大大降低了树的…
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Some indexes may have their own sets of internal metrics that are meaningful to collect. For example, for an LSM tree like LevelDB we can collect compact speed. These are not included in standard PiBe…
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## Step By Step Guide
![Technology Stack](https://user-images.githubusercontent.co…
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Hello All,
In experimenting with some of the newer kernels I have found that `CONFIG_SECURITY_YAMA` is disabled in GalliumOS. This leads to the failure of `/etc/sysctl.d/10-ptrace.conf` which tries…
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https://github.com/roseduan/rosedb
https://riak.com/assets/bitcask-intro.pdf