Todd Lipcon has posted comments on this change. ( http://gerrit.cloudera.org:8080/10696 )
Change subject: [DRAFT] IMPALA-6189: Add thread watchdogs for HDFS IO calls ...................................................................... Patch Set 4: btw for the Java stack tracing I'd also investigate implementing something in pure java, even if it has native hooks -- eg capture a JNI ref to the current Thread from a non-async context, and then when you want to stack trace that thread, call the java Thread.getStackTrace() API instead of using JVMTI. For these use cases of 5-second+ HDFS calls, I don't think you're looking for super-low-latency-low-overhead stack collection as provided by signals, and the public Java APIs are probably enough? -- To view, visit http://gerrit.cloudera.org:8080/10696 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-Project: Impala-ASF Gerrit-Branch: master Gerrit-MessageType: comment Gerrit-Change-Id: I28e918761c120043d332b034450208eaf34e3e2b Gerrit-Change-Number: 10696 Gerrit-PatchSet: 4 Gerrit-Owner: Bharath Vissapragada <[email protected]> Gerrit-Reviewer: Balazs Jeszenszky <[email protected]> Gerrit-Reviewer: Bharath Vissapragada <[email protected]> Gerrit-Reviewer: Dan Hecht <[email protected]> Gerrit-Reviewer: Lars Volker <[email protected]> Gerrit-Reviewer: Michael Ho <[email protected]> Gerrit-Reviewer: Philip Zeyliger <[email protected]> Gerrit-Reviewer: Todd Lipcon <[email protected]> Gerrit-Reviewer: Zoram Thanga <[email protected]> Gerrit-Comment-Date: Thu, 12 Jul 2018 19:46:29 +0000 Gerrit-HasComments: No
