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Prevent multiple processes from accessing same storage files #1185

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srh opened this issue Jul 13, 2017 · 2 comments
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Prevent multiple processes from accessing same storage files #1185

srh opened this issue Jul 13, 2017 · 2 comments
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@srh
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srh commented Jul 13, 2017

It's very easy to create two processes configured to the same posting or wal dir. This will result in corrupted data files. Some sort of process id lock file (or one in each directory) is in order.

@manishrjain
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manishrjain commented Jul 13, 2017 via email

@srh
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srh commented Jul 18, 2017

Fixed in Badger.

@srh srh closed this as completed Jul 18, 2017
jarifibrahim pushed a commit that referenced this issue Mar 16, 2020
Important changes
```
 - Changes to overlap check in compaction.
 - Remove 'this entry should've been caught' log.
 - Changes to write stalling on levels 0 and 1.
 - Compression is disabled by default in Badger.
 - Bloom filter caching in a separate ristretto cache.
 - Compression/Encryption in background.
 - Disable cache by default in badger.
```

The following new changes are being added from badger
`git log ab4352b00a17...91c31ebe8c22`

```
91c31eb Disable cache by default (#1257)
eaf64c0 Add separate cache for bloom filters (#1260)
1bcbefc Add BypassDirLock option (#1243)
c6c1e5e Add support for watching nil prefix in subscribe API (#1246)
b13b927 Compress/Encrypt Blocks in the background (#1227)
bdb2b13 fix changelog for v2.0.2 (#1244)
8dbc982 Add Dkron to README (#1241)
3d95b94 Remove coveralls from Travis Build(#1219)
5b4c0a6 Fix ValueThreshold for in-memory mode (#1235)
617ed7c Initialize vlog before starting compactions in db.Open (#1226)
e908818 Update CHANGELOG for Badger 2.0.2 release. (#1230)
bce069c Fix int overflow for 32bit (#1216)
e029e93 Remove ExampleDB_Subscribe Test (#1214)
8734e3a Add missing package to README for badger.NewEntry (#1223)
78d405a Replace t.Fatal with require.NoError in tests (#1213)
c51748e Fix flaky TestPageBufferReader2 test (#1210)
eee1602 Change else-if statements to idiomatic switch statements. (#1207)
3e25d77 Rework concurrency semantics of valueLog.maxFid (#1184) (#1187)
4676ca9 Add support for caching bloomfilters (#1204)
c3333a5 Disable compression and set ZSTD Compression Level to 1 (#1191)
0acb3f6 Fix L0/L1 stall test (#1201)
7e5a956 Support disabling the cache completely. (#1183) (#1185)
82381ac Update ristretto to version  8f368f2 (#1195)
3747be5 Improve write stalling on level 0 and 1
5870b7b Run all tests on CI (#1189)
01a00cb Add Jaegar to list of projects (#1192)
9d6512b Use fastRand instead of locked-rand in skiplist (#1173)
2698bfc Avoid sync in inmemory mode (#1190)
2a90c66 Remove the 'this entry should've caught' log from value.go (#1170)
0a06173 Fix checkOverlap in compaction (#1166)
0f2e629 Fix windows build (#1177)
03af216 Fix commit sha for WithInMemory in CHANGELOG. (#1172)
23a73cd Update CHANGELOG for v2.0.1 release. (#1181)
465f28a Cast sz to uint32 to fix compilation on 32 bit (#1175)
ea01d38 Rename option builder from WithInmemory to WithInMemory. (#1169)
df99253 Remove ErrGCInMemoryMode in CHANGELOG. (#1171)
8dfdd6d Adding changes for 2.0.1 so far (#1168)
```
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