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Log warn when amount of context exceeds the max capacity for the first time 

Signed-off-by: Eric Zhao <sczyh16@gmail.com>
This commit is contained in:
Eric Zhao 2018-09-27 16:53:07 +08:00
parent 87076a6977
commit 9c2683e6ba
2 changed files with 34 additions and 2 deletions
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10
sentinel-core/src/main/java/com/alibaba/csp/sentinel/CtSph.java
View File

@ -203,6 +203,16 @@ public class CtSph implements Sph {
return chain;
}
/**
* Get current size of created slot chains.
*
* @return size of created slot chains
* @since 0.2.0
*/
public static int entrySize() {
return chainMap.size();
}
/**
* Reset the slot chain map. Only for internal test.
*

26
sentinel-core/src/main/java/com/alibaba/csp/sentinel/context/ContextUtil.java
View File

@ -123,7 +123,7 @@ public class ContextUtil {
DefaultNode node = localCacheNameMap.get(name);
if (node == null) {
if (localCacheNameMap.size() > Constants.MAX_CONTEXT_NAME_SIZE) {
contextHolder.set(NULL_CONTEXT);
setNullContext();
return NULL_CONTEXT;
} else {
try {
@ -131,7 +131,7 @@ public class ContextUtil {
node = contextNameNodeMap.get(name);
if (node == null) {
if (contextNameNodeMap.size() > Constants.MAX_CONTEXT_NAME_SIZE) {
contextHolder.set(NULL_CONTEXT);
setNullContext();
return NULL_CONTEXT;
} else {
node = new EntranceNode(new StringResourceWrapper(name, EntryType.IN), null);
@ -158,6 +158,18 @@ public class ContextUtil {
return context;
}
private static boolean shouldWarn = true;
private static void setNullContext() {
contextHolder.set(NULL_CONTEXT);
// Don't need to be thread-safe.
if (shouldWarn) {
RecordLog.warn("[SentinelStatusChecker] WARN: Amount of context exceeds the threshold "
+ Constants.MAX_CONTEXT_NAME_SIZE + ". Entries in new contexts will NOT take effect!");
shouldWarn = false;
}
}
/**
* <p>
* Enter the invocation context. The context is ThreadLocal, meaning that
@ -192,6 +204,16 @@ public class ContextUtil {
}
}
/**
* Get current size of context entrance node map.
*
* @return current size of context entrance node map
* @since 0.2.0
*/
public static int contextSize() {
return contextNameNodeMap.size();
}
/**
* Check if provided context is a default auto-created context.
*