wbtiger
/
foundationdb
mirror of https://github.com/apple/foundationdb.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Adjusting simulation knobs to reduce change feed memory overhead for large merge cases

This commit is contained in:
Josh Slocum 2022-03-14 11:48:15 -05:00
parent a2bbb188c3
commit 26cbe6863d
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
fdbclient/ServerKnobs.cpp
View File

@ -290,7 +290,7 @@ void ServerKnobs::initialize(Randomize randomize, ClientKnobs* clientKnobs, IsSi
init( SQLITE_CHUNK_SIZE_PAGES_SIM, 1024 ); // 4MB
init( SQLITE_READER_THREADS, 64 ); // number of read threads
init( SQLITE_WRITE_WINDOW_SECONDS, -1 );
init( SQLITE_CURSOR_MAX_LIFETIME_BYTES, 1e6 ); if( randomize && BUGGIFY ) SQLITE_CURSOR_MAX_LIFETIME_BYTES = 0;
init( SQLITE_CURSOR_MAX_LIFETIME_BYTES, 1e6 ); if (buggifySmallShards || simulationMediumShards) SQLITE_CURSOR_MAX_LIFETIME_BYTES = MIN_SHARD_BYTES; if( randomize && BUGGIFY ) SQLITE_CURSOR_MAX_LIFETIME_BYTES = 0;
init( SQLITE_WRITE_WINDOW_LIMIT, -1 );
if( randomize && BUGGIFY ) {
// Choose an window between .01 and 1.01 seconds.
@ -822,7 +822,7 @@ void ServerKnobs::initialize(Randomize randomize, ClientKnobs* clientKnobs, IsSi
// Blob granlues
init( BG_URL, isSimulated ? "file://fdbblob/" : "" ); // TODO: store in system key space or something, eventually
init( BG_SNAPSHOT_FILE_TARGET_BYTES, 10000000 ); if( buggifySmallShards || (randomize && BUGGIFY) ) { deterministicRandom()->random01() < 0.1 ? BG_SNAPSHOT_FILE_TARGET_BYTES /= 100 : BG_SNAPSHOT_FILE_TARGET_BYTES /= 10; }
init( BG_SNAPSHOT_FILE_TARGET_BYTES, 10000000 ); if( buggifySmallShards ) BG_SNAPSHOT_FILE_TARGET_BYTES = 100000; else if (simulationMediumShards || (randomize && BUGGIFY) ) BG_SNAPSHOT_FILE_TARGET_BYTES = 1000000;
init( BG_DELTA_BYTES_BEFORE_COMPACT, BG_SNAPSHOT_FILE_TARGET_BYTES/2 );
init( BG_DELTA_FILE_TARGET_BYTES, BG_DELTA_BYTES_BEFORE_COMPACT/10 );
init( BG_MAX_SPLIT_FANOUT, 10 ); if( randomize && BUGGIFY ) BG_MAX_SPLIT_FANOUT = deterministicRandom()->randomInt(5, 15);