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account for the overhead of tags on a message when batching transactions into a version 

increased the default location cache size
This commit is contained in:
Evan Tschannen 2018-11-02 12:52:34 -07:00
parent 3cb7fb3f0f
commit 18509ac4dd
3 changed files with 4 additions and 2 deletions
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3
fdbclient/Knobs.cpp
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@ -51,6 +51,7 @@ ClientKnobs::ClientKnobs(bool randomize) {
init( DEFAULT_MAX_BACKOFF, 1.0 );
init( BACKOFF_GROWTH_RATE, 2.0 );
init( RESOURCE_CONSTRAINED_MAX_BACKOFF, 30.0 );
init( PROXY_COMMIT_OVERHEAD_BYTES, 23 ); //The size of serializing 7 tags (3 primary, 3 remote, 1 log router) + 2 for the tag length
init( TRANSACTION_SIZE_LIMIT, 1e7 );
init( KEY_SIZE_LIMIT, 1e4 );
@ -61,7 +62,7 @@ ClientKnobs::ClientKnobs(bool randomize) {
init( MAX_BATCH_SIZE, 20 ); if( randomize && BUGGIFY ) MAX_BATCH_SIZE = 1; // Note that SERVER_KNOBS->START_TRANSACTION_MAX_BUDGET_SIZE is set to match this value
init( GRV_BATCH_TIMEOUT, 0.005 ); if( randomize && BUGGIFY ) GRV_BATCH_TIMEOUT = 0.1;
init( LOCATION_CACHE_EVICTION_SIZE, 100000 );
init( LOCATION_CACHE_EVICTION_SIZE, 300000 );
init( LOCATION_CACHE_EVICTION_SIZE_SIM, 10 ); if( randomize && BUGGIFY ) LOCATION_CACHE_EVICTION_SIZE_SIM = 3;
init( GET_RANGE_SHARD_LIMIT, 2 );

1
fdbclient/Knobs.h
View File

@ -49,6 +49,7 @@ public:
double DEFAULT_MAX_BACKOFF;
double BACKOFF_GROWTH_RATE;
double RESOURCE_CONSTRAINED_MAX_BACKOFF;
int PROXY_COMMIT_OVERHEAD_BYTES;
int64_t TRANSACTION_SIZE_LIMIT;
int64_t KEY_SIZE_LIMIT;

2
fdbclient/MasterProxyInterface.h
View File

@ -101,7 +101,7 @@ static inline int getBytes( CommitTransactionRequest const& r ) {
//return r.arena.getSize(); // NOT correct because arena can be shared!
int total = sizeof(r);
for(auto m = r.transaction.mutations.begin(); m != r.transaction.mutations.end(); ++m)
total += m->expectedSize();
total += m->expectedSize() + CLIENT_KNOBS->PROXY_COMMIT_OVERHEAD_BYTES;
for(auto i = r.transaction.read_conflict_ranges.begin(); i != r.transaction.read_conflict_ranges.end(); ++i)
total += i->expectedSize();
for(auto i = r.transaction.write_conflict_ranges.begin(); i != r.transaction.write_conflict_ranges.end(); ++i)