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Code Issues Releases Wiki Activity

improve dynamic config

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This commit is contained in:
wenshao
2013-05-26 18:52:21 +08:00
parent 32e3ed98e6
commit f42f6fdba3
14 changed files with 424 additions and 40 deletions
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src/main/java/com/alibaba/druid/stat/JdbcDataSourceStat.java
+40 -7
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@@ -39,7 +39,6 @@ import com.alibaba.druid.proxy.jdbc.DataSourceProxy;
import com.alibaba.druid.support.logging.Log;
import com.alibaba.druid.support.logging.LogFactory;
import com.alibaba.druid.util.Histogram;
import com.alibaba.druid.util.LRUCache;
public class JdbcDataSourceStat implements JdbcDataSourceStatMBean {
@@ -53,11 +52,13 @@ public class JdbcDataSourceStat implements JdbcDataSourceStatMBean {
private final JdbcResultSetStat resultSetStat = new JdbcResultSetStat();
private final JdbcStatementStat statementStat = new JdbcStatementStat();
private int maxSize = 1000 * 1;
private int maxSqlSize = 1000 * 1;
private ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
private final LinkedHashMap<String, JdbcSqlStat> sqlStatMap;
private final AtomicLong skipSqlCount = new AtomicLong();
private final Histogram connectionHoldHistogram = new Histogram(new long[] { //
//
1, 10, 100, 1000, 10 * 1000, //
@@ -100,6 +101,7 @@ public class JdbcDataSourceStat implements JdbcDataSourceStatMBean {
this(name, url, dbType, null);
}
@SuppressWarnings("serial")
public JdbcDataSourceStat(String name, String url, String dbType, Properties connectProperties){
this.name = name;
this.url = url;
@@ -114,14 +116,36 @@ public class JdbcDataSourceStat implements JdbcDataSourceStatMBean {
if (arg != null) {
try {
maxSize = Integer.parseInt(arg.toString());
maxSqlSize = Integer.parseInt(arg.toString());
} catch (NumberFormatException ex) {
LOG.error("maxSize parse error", ex);
}
}
}
sqlStatMap = new LRUCache<String, JdbcSqlStat>(maxSize, 16, 0.75f, false);
sqlStatMap = new LinkedHashMap<String, JdbcSqlStat>(16, 0.75f, false) {
protected boolean removeEldestEntry(Map.Entry<String, JdbcSqlStat> eldest) {
boolean remove = (size() > maxSqlSize);
if (remove) {
JdbcSqlStat sqlStat = eldest.getValue();
if (sqlStat.getRunningCount() > 0 || sqlStat.getExecuteCount() > 0) {
skipSqlCount.incrementAndGet();
}
}
return remove;
}
};
}
public int getMaxSqlSize() {
return this.maxSqlSize;
}
public void setMaxSqlSize(int value) {
this.maxSqlSize = value;
}
public String getDbType() {
@@ -131,6 +155,14 @@ public class JdbcDataSourceStat implements JdbcDataSourceStatMBean {
public void setDbType(String dbType) {
this.dbType = dbType;
}
public long getSkipSqlCount() {
return skipSqlCount.get();
}
public long getSkipSqlCountAndReset() {
return skipSqlCount.getAndSet(0);
}
public void reset() {
blobOpenCount.set(0);
@@ -140,6 +172,7 @@ public class JdbcDataSourceStat implements JdbcDataSourceStatMBean {
statementStat.reset();
resultSetStat.reset();
connectionHoldHistogram.reset();
skipSqlCount.set(0);
lock.writeLock().lock();
try {
@@ -286,7 +319,7 @@ public class JdbcDataSourceStat implements JdbcDataSourceStatMBean {
} finally {
lock.writeLock().unlock();
}
List<JdbcSqlStatValue> values = new ArrayList<JdbcSqlStatValue>(stats.size());
for (int i = 0; i < stats.size(); ++i) {
JdbcSqlStat stat = stats.get(i);
@@ -375,7 +408,7 @@ public class JdbcDataSourceStat implements JdbcDataSourceStatMBean {
public long getClobOpenCount() {
return clobOpenCount.get();
}
public long getClobOpenCountAndReset() {
return clobOpenCount.getAndSet(0);
}
@@ -387,7 +420,7 @@ public class JdbcDataSourceStat implements JdbcDataSourceStatMBean {
public long getBlobOpenCount() {
return blobOpenCount.get();
}
public long getBlobOpenCountAndReset() {
return blobOpenCount.getAndSet(0);
}