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Enable SQLite shared cache mode.

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This allows all threads accessing the same database to share sqlite
objects. This, for example, fixes the issue with several threads
simultaneously writing to the same database file.

See https://www.sqlite.org/sharedcache.html

Addresses BIT-1325
This commit is contained in:
Johanna Amann 2016-07-21 12:08:57 -07:00
parent 697b59cdc8
commit 4968a5c654
4 changed files with 112 additions and 0 deletions
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3
src/input/readers/sqlite/SQLite.cc
View file

@ -75,6 +75,9 @@ bool SQLite::DoInit(const ReaderInfo& info, int arg_num_fields, const threading:
return false;
}
// Allow connections to same DB to use single data/schema cache. Also allows simultaneous writes to one file.
sqlite3_enable_shared_cache(1);
if ( Info().mode != MODE_MANUAL )
{
Error("SQLite only supports manual reading mode.");