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Notary metrics (#383)

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* Track the distribution of the number of input states

* Log number of input states and commit duration

...and move the rollback

* Update schema
This commit is contained in:
Thomas Schroeter 2018-01-23 16:24:51 +00:00 committed by GitHub
parent c81e597199
commit a564c9bfd3
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1 changed files with 13 additions and 5 deletions
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18
node/src/main/kotlin/net/corda/node/services/transactions/MySQLUniquenessProvider.kt
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@ -1,6 +1,7 @@
package net.corda.node.services.transactions
import com.codahale.metrics.MetricRegistry
import com.google.common.base.Stopwatch
import com.mysql.cj.jdbc.exceptions.MySQLTransactionRollbackException
import com.zaxxer.hikari.HikariConfig
import com.zaxxer.hikari.HikariDataSource
@ -20,6 +21,7 @@ import java.sql.BatchUpdateException
import java.sql.Connection
import java.sql.SQLTransientConnectionException
import java.util.*
import java.util.concurrent.TimeUnit
/**
* Uniqueness provider backed by a MySQL database. It is intended to be used with a multi-master synchronously replicated
@ -38,7 +40,7 @@ class MySQLUniquenessProvider(
private val createTableStatement =
"CREATE TABLE IF NOT EXISTS committed_states (" +
"issue_tx_id BINARY(32) NOT NULL," +
"issue_tx_output_id INT NOT NULL," +
"issue_tx_output_id INT UNSIGNED NOT NULL," +
"consuming_tx_id BINARY(32) NOT NULL," +
"consuming_tx_input_id INT UNSIGNED NOT NULL," +
"consuming_party_name TEXT NOT NULL," +
@ -63,6 +65,8 @@ class MySQLUniquenessProvider(
private val connectionExceptionCounter = metrics.counter("$metricPrefix.ConnectionException")
/** Track double spend attempts. Note that this will also include notarisation retries. */
private val conflictCounter = metrics.counter("$metricPrefix.Conflicts")
/** Track the distribution of the number of input states **/
private val nrInputStates = metrics.histogram("$metricPrefix.NumberOfInputStates")
val dataSource = HikariDataSource(HikariConfig(configuration.dataSource))
private val connectionRetries = configuration.connectionRetries
@ -96,15 +100,18 @@ class MySQLUniquenessProvider(
}
override fun commit(states: List<StateRef>, txId: SecureHash, callerIdentity: Party) {
val timer = commitTimer.time()
val s = Stopwatch.createStarted()
try {
retryTransaction(CommitAll(states, txId, callerIdentity))
nrInputStates.update(states.size)
} catch (e: BatchUpdateException) {
log.info("Unable to commit input states, finding conflicts", e)
log.info("Unable to commit input states, finding conflicts, txId: $txId", e)
conflictCounter.inc()
retryTransaction(FindConflicts(states))
} finally {
timer.stop()
val dt = s.stop().elapsed(TimeUnit.MILLISECONDS)
commitTimer.update(dt, TimeUnit.MILLISECONDS)
log.info("Processed notarisation request, txId: $txId, nrInputStates: ${states.size}, dt: $dt")
}
}
@ -114,12 +121,13 @@ class MySQLUniquenessProvider(
try {
tx.run(it)
} catch (e: Exception) {
it.rollback()
if (e is MySQLTransactionRollbackException) {
log.warn("Rollback exception occurred, retrying", e)
rollbackCounter.inc()
continue
} else {
log.warn("Attempting to rollback", e)
it.rollback()
throw e
}
}