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8210985: Update the default SSL session cache size to 20480

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Reviewed-by: jnimeh, mullan
This commit is contained in:
Xue-Lei Andrew Fan 2018-11-29 08:43:12 -08:00
parent c03797a5d0
commit 388e1ebbba
3 changed files with 129 additions and 21 deletions
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29
src/java.base/share/classes/sun/security/ssl/SSLSessionContextImpl.java
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@ -32,11 +32,13 @@ import java.util.Locale;
import javax.net.ssl.SSLSession;
import javax.net.ssl.SSLSessionContext;
import sun.security.action.GetPropertyAction;
import sun.security.action.GetIntegerAction;
import sun.security.util.Cache;
final class SSLSessionContextImpl implements SSLSessionContext {
private final static int DEFAULT_MAX_CACHE_SIZE = 20480;
private final Cache<SessionId, SSLSessionImpl> sessionCache;
// session cache, session id as key
private final Cache<String, SSLSessionImpl> sessionHostPortCache;
@ -196,16 +198,29 @@ final class SSLSessionContextImpl implements SSLSessionContext {
}
private static int getDefaultCacheLimit() {
int defaultCacheLimit = 0;
try {
String s = GetPropertyAction
.privilegedGetProperty("javax.net.ssl.sessionCacheSize");
defaultCacheLimit = (s != null) ? Integer.parseInt(s) : 0;
int defaultCacheLimit = GetIntegerAction.privilegedGetProperty(
"javax.net.ssl.sessionCacheSize", DEFAULT_MAX_CACHE_SIZE);
if (defaultCacheLimit >= 0) {
return defaultCacheLimit;
} else if (SSLLogger.isOn && SSLLogger.isOn("ssl")) {
SSLLogger.warning(
"invalid System Property javax.net.ssl.sessionCacheSize, " +
"use the default session cache size (" +
DEFAULT_MAX_CACHE_SIZE + ") instead");
}
} catch (Exception e) {
// swallow the exception
// unlikely, log it for safe
if (SSLLogger.isOn && SSLLogger.isOn("ssl")) {
SSLLogger.warning(
"the System Property javax.net.ssl.sessionCacheSize is " +
"not available, use the default value (" +
DEFAULT_MAX_CACHE_SIZE + ") instead");
}
}
return (defaultCacheLimit > 0) ? defaultCacheLimit : 0;
return DEFAULT_MAX_CACHE_SIZE;
}
private boolean isTimedout(SSLSession sess) {