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| author | Eelco Dolstra <eelco.dolstra@logicblox.com> | 2012-12-11T10·49+0100 |
|---|---|---|
| committer | Eelco Dolstra <eelco.dolstra@logicblox.com> | 2012-12-11T10·49+0100 |
| commit | 772778c0eced8f8d63bfe6b1e9801ad6aada65bf (patch) | |
| tree | b93190ac1e556060923024d05cf79cfbf33a97f8 /src/libstore/local-store.cc | |
| parent | e087bfef5f36f309b1c8d01bfe297e4cf4decb34 (diff) | |
On SQLITE_BUSY, wait a random amount of time
If all contending processes wait a fixed amount of time (100 ms), there is a good probability that they'll just collide again.
Diffstat (limited to 'src/libstore/local-store.cc')
| -rw-r--r-- | src/libstore/local-store.cc | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/libstore/local-store.cc b/src/libstore/local-store.cc index b4fc64d712fa..26b4cfd8c234 100644 --- a/src/libstore/local-store.cc +++ b/src/libstore/local-store.cc @@ -48,7 +48,7 @@ static void throwSQLiteError(sqlite3 * db, const format & f) #if HAVE_NANOSLEEP struct timespec t; t.tv_sec = 0; - t.tv_nsec = 100 * 1000 * 1000; /* 0.1s */ + t.tv_nsec = (random() % 100) * 1000 * 1000; /* <= 0.1s */ nanosleep(&t, 0); #else sleep(1); |