abdullah alamoudi has uploaded a new change for review.
https://asterix-gerrit.ics.uci.edu/2483
Change subject: [NO ISSUE][OTH] Log open file count on unexpected HttpServer
close
......................................................................
[NO ISSUE][OTH] Log open file count on unexpected HttpServer close
- user model changes: no
- storage format changes: no
- interface changes: no
Details:
- Recently, there has been some cases where the Http server
repeatedly drops its listener. One of the possible causes
for this is a leak in open file descriptor. To determine if
this is the case, we log the open files count when that happens.
Change-Id: Ie43f3392268b3994839d1f98f4de9fe669c7be62
---
M
hyracks-fullstack/hyracks/hyracks-http/src/main/java/org/apache/hyracks/http/server/HttpServer.java
1 file changed, 11 insertions(+), 0 deletions(-)
git pull ssh://asterix-gerrit.ics.uci.edu:29418/asterixdb
refs/changes/83/2483/1
diff --git
a/hyracks-fullstack/hyracks/hyracks-http/src/main/java/org/apache/hyracks/http/server/HttpServer.java
b/hyracks-fullstack/hyracks/hyracks-http/src/main/java/org/apache/hyracks/http/server/HttpServer.java
index d971a7c..cab7dd8 100644
---
a/hyracks-fullstack/hyracks/hyracks-http/src/main/java/org/apache/hyracks/http/server/HttpServer.java
+++
b/hyracks-fullstack/hyracks/hyracks-http/src/main/java/org/apache/hyracks/http/server/HttpServer.java
@@ -18,6 +18,9 @@
*/
package org.apache.hyracks.http.server;
+import java.lang.management.ManagementFactory;
+import java.lang.management.OperatingSystemMXBean;
+import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
@@ -251,6 +254,14 @@
return;
}
LOGGER.log(Level.WARN, "{} has stopped unexpectedly. Starting
server recovery", this);
+ try {
+ OperatingSystemMXBean os =
ManagementFactory.getOperatingSystemMXBean();
+ Method method =
os.getClass().getMethod("getOpenFileDescriptorCount");
+ Integer value = (Integer) method.invoke(os);
+ LOGGER.log(Level.WARN, "Number of open files by this
process is {} ", value);
+ } catch (Throwable th) {
+ LOGGER.log(Level.WARN, "Failed getting the count of open
files", th);
+ }
triggerRecovery();
}
});
--
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Gerrit-MessageType: newchange
Gerrit-Change-Id: Ie43f3392268b3994839d1f98f4de9fe669c7be62
Gerrit-PatchSet: 1
Gerrit-Project: asterixdb
Gerrit-Branch: master
Gerrit-Owner: abdullah alamoudi <[email protected]>
