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update knob

This commit is contained in:
XiaoxiWang 2020-09-11 20:50:19 +00:00
parent d5fba9a69b
commit 52bd86ad42
4 changed files with 6 additions and 4 deletions
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3
fdbserver/Knobs.cpp
View File

@ -566,7 +566,8 @@ void ServerKnobs::initialize(bool randomize, ClientKnobs* clientKnobs, bool isSi
init( BEHIND_CHECK_COUNT, 2 );
init( BEHIND_CHECK_VERSIONS, 5 * VERSIONS_PER_SECOND );
init( WAIT_METRICS_WRONG_SHARD_CHANCE, isSimulated ? 1.0 : 0.1 );
init( MIN_TAG_PAGES_RATE, 1.0e4 ); if( randomize && BUGGIFY ) MIN_TAG_PAGES_RATE = 0;
init( MIN_TAG_READ_PAGES_RATE, 1.0e4 ); if( randomize && BUGGIFY ) MIN_TAG_READ_PAGES_RATE = 0;
init( MIN_TAG_WRITE_PAGES_RATE, 3200 ); if( randomize && BUGGIFY ) MIN_TAG_WRITE_PAGES_RATE = 0;
init( TAG_MEASUREMENT_INTERVAL, 30.0 ); if( randomize && BUGGIFY ) TAG_MEASUREMENT_INTERVAL = 1.0;
init( READ_COST_BYTE_FACTOR, 16384 ); if( randomize && BUGGIFY ) READ_COST_BYTE_FACTOR = 4096;
init( PREFIX_COMPRESS_KVS_MEM_SNAPSHOTS, true ); if( randomize && BUGGIFY ) PREFIX_COMPRESS_KVS_MEM_SNAPSHOTS = false;

3
fdbserver/Knobs.h
View File

@ -495,7 +495,8 @@ public:
int BEHIND_CHECK_COUNT;
int64_t BEHIND_CHECK_VERSIONS;
double WAIT_METRICS_WRONG_SHARD_CHANCE;
int64_t MIN_TAG_PAGES_RATE;
int64_t MIN_TAG_READ_PAGES_RATE;
int64_t MIN_TAG_WRITE_PAGES_RATE;
double TAG_MEASUREMENT_INTERVAL;
int64_t READ_COST_BYTE_FACTOR;
bool PREFIX_COMPRESS_KVS_MEM_SNAPSHOTS;

2
fdbserver/Ratekeeper.actor.cpp
View File

@ -877,7 +877,7 @@ Future<Void> refreshStorageServerCommitCost(RatekeeperData* self) {
maxCost = cost;
}
}
if (maxRate > SERVER_KNOBS->MIN_TAG_PAGES_RATE) {
if (maxRate > SERVER_KNOBS->MIN_TAG_WRITE_PAGES_RATE) {
it->value.busiestWriteTag = busiestTag;
// TraceEvent("RefreshSSCommitCost").detail("TotalWriteCost", it->value.totalWriteCost).detail("TotalWriteOps",it->value.totalWriteOps);
ASSERT(it->value.totalWriteCosts > 0);

2
fdbserver/storageserver.actor.cpp
View File

@ -500,7 +500,7 @@ public:
previousBusiestTag.reset();
if (intervalStart > 0 && CLIENT_KNOBS->READ_TAG_SAMPLE_RATE > 0 && elapsed > 0) {
double rate = busiestTagCount / CLIENT_KNOBS->READ_TAG_SAMPLE_RATE / elapsed;
if (rate > SERVER_KNOBS->MIN_TAG_PAGES_RATE) {
if (rate > SERVER_KNOBS->MIN_TAG_READ_PAGES_RATE) {
previousBusiestTag = TagInfo(busiestTag, rate, (double)busiestTagCount / intervalTotalSampledCount);
}