In this session, we will be discussing major outages that happened in major enterprises. We will analyse the actual thread dumps, heap dumps, GC logs, and other artifacts captured at the time of the problem. After this session, troubleshooting CPU spikes, OutOfMemoryError, response time degradations, network connectivity issues, and application unresponsiveness may not stump you.
This document provides an overview of Node.js application performance analysis and optimization as well as distributed system design. It discusses analyzing and optimizing CPU, memory, file I/O and network I/O usage. It also covers profiling Node.js applications using tools like Linux profiling tools, Node.js libraries, and V8 profiling tools. Lastly it discusses designing distributed systems using single machine and cluster approaches.
Talk for YOW! by Brendan Gregg. "Systems performance studies the performance of computing systems, including all physical components and the full software stack to help you find performance wins for your application and kernel. However, most of us are not performance or kernel engineers, and have limited time to study this topic. This talk summarizes the topic for everyone, touring six important areas: observability tools, methodologies, benchmarking, profiling, tracing, and tuning. Included are recipes for Linux performance analysis and tuning (using vmstat, mpstat, iostat, etc), overviews of complex areas including profiling (perf_events) and tracing (ftrace, bcc/BPF, and bpftrace/BPF), advice about what is and isn't important to learn, and case studies to see how it is applied. This talk is aimed at everyone: developers, operations, sysadmins, etc, and in any environment running Linux, bare metal or the cloud.
"
Uncover the hidden challenges that plague production environments in this eye-opening session. Join us as we explore the five most common performance problems that emerge in live systems. Gain invaluable insights into detecting these issues early on, before they wreak havoc on your operations. Discover practical solutions that empower you to address these challenges head-on, ensuring optimal performance and seamless user experiences.
Discover the Top 5 Java Performance Problems in our presentation. Learn about common issues in Java coding and how to fix them. This guide helps you make your Java applications run better and faster.
The document summarizes a lightning talk given at the Chicago Java User Group Meetup on January 14, 2016. The presenter discussed finding a suitable garbage collector for OpenTSDB, an open source time series database. Tests were conducted using three different garbage collectors: Parallel GC, CMS GC, and G1 GC. Based on analysis of GC logs and metrics, G1 GC was found to perform best by allowing more short-lived objects to be handled in the young generation, leading to more efficient garbage collection.
Talk by Brendan Gregg for USENIX LISA 2019: Linux Systems Performance. Abstract: "
Systems performance is an effective discipline for performance analysis and tuning, and can help you find performance wins for your applications and the kernel. However, most of us are not performance or kernel engineers, and have limited time to study this topic. This talk summarizes the topic for everyone, touring six important areas of Linux systems performance: observability tools, methodologies, benchmarking, profiling, tracing, and tuning. Included are recipes for Linux performance analysis and tuning (using vmstat, mpstat, iostat, etc), overviews of complex areas including profiling (perf_events) and tracing (Ftrace, bcc/BPF, and bpftrace/BPF), and much advice about what is and isn't important to learn. This talk is aimed at everyone: developers, operations, sysadmins, etc, and in any environment running Linux, bare metal or the cloud."
This document provides an overview of Linux performance monitoring tools including mpstat, top, htop, vmstat, iostat, free, strace, and tcpdump. It discusses what each tool measures and how to use it to observe system performance and diagnose issues. The tools presented provide visibility into CPU usage, memory usage, disk I/O, network traffic, and system call activity which are essential for understanding workload performance on Linux systems.
The document discusses garbage collection (GC) log analysis. It begins with an overview of key performance indicators (KPIs) related to GC and the anatomy of different GC log formats. It then introduces the gceasy.io tool for analyzing GC logs and provides examples of analyzing real-world GC logs to identify issues like long GC pauses, poor throughput, and memory leaks. The document aims to help understand how to extract useful insights from GC logs.
The document provides an overview of how to read and understand garbage collection (GC) log lines from different Java vendors and JVM versions. It begins by explaining the parts of a basic GC log line for the OpenJDK GC log format. It then discusses GC log lines for G1 GC and CMS GC in more detail. Finally, it shares examples of GC log formats from IBM JVMs and different levels of information provided. The document aims to help readers learn to correctly interpret GC logs and analyze GC behavior.
This presentation was given to the system adminstration team to give them an idea of how GC works and what to look for when there is abottleneck and troubles.
The document discusses various tools and techniques for Java profiling and diagnostics. It describes JVM diagnostic interfaces like JMX and JVMTI, the Attach Protocol, performance counters, and flight recording. It also summarizes tools like SJK and BTrace that provide command line interfaces for profiling, analyzing garbage collection, tracking CPU usage, working with heap dumps, and more. These tools exploit JVM interfaces and allow ad-hoc instrumentation to gather detailed insight into a running JVM.
A brief history of Instagram's adoption cycle of the open source distributed database Apache Cassandra, in addition to details about it's use case and implementation. This was presented at the San Francisco Cassandra Meetup at the Disqus HQ in August 2013.
Accelerating Incident Response To Production Outages
In this webinar, following topics were discussed
1) Production outages that happened in major enterprises in their JVM applications.
2) Analyzing the actual thread dumps, heap dumps, GC logs, and other artifacts captured at the time of the problem.
The Open Street Map project provides invaluable data that keeps driving users toward the PostGIS and PostgreSQL stacks. Loading today’s full Planet data set takes a 120GB XML file and unrolls it into over a terabyte of database data. Crunchy’s benchmark labs have followed the expansion of that Planet data over the last six database releases, as the re-ignition of the CPU wars combined with parallel execution features landing in the database. We’ll take a look at that data evolution, which server configurations worked, and which metrics techniques still matter in the all SSD era.
Netflix tunes Amazon EC2 instances for maximum performance. In this session, you learn how Netflix configures the fastest possible EC2 instances, while reducing latency outliers. This session explores the various Xen modes (e.g., HVM, PV, etc.) and how they are optimized for different workloads. Hear how Netflix chooses Linux kernel versions based on desired performance characteristics and receive a firsthand look at how they set kernel tunables, including hugepages. You also hear about Netflix's use of SR-IOV to enable enhanced networking and their approach to observability, which can exonerate EC2 issues and direct attention back to application performance.
DECODING JAVA THREAD DUMPS: MASTER THE ART OF ANALYSIS
Are you ready to unlock the secrets hidden within Java thread dumps? Join us for a hands-on session where we'll delve into effective troubleshooting patterns to swiftly identify the root causes of production problems. Discover the right tools, techniques, and best practices while exploring *real-world case studies of major outages* in Fortune 500 enterprises. Engage in interactive lab exercises where you'll have the opportunity to troubleshoot thread dumps and uncover performance issues firsthand. Join us and become a master of Java thread dump analysis!
Even though at surface level ‘java.lang.OutOfMemoryError’ appears as one single error; underlyingly there are 9 types of OutOfMemoryError. Each type of OutOfMemoryError has different causes, diagnosis approaches and solutions. This session equips you with the knowledge, tools, and techniques needed to troubleshoot and conquer OutOfMemoryError in all its forms, ensuring smoother, more efficient Java applications.
In our everyday Java programming, we rely on familiar APIs without fully realizing their hidden performance impacts. This session aims to unveil the concealed performance aspects of common Java APIs and shed light on how they can influence your application's performance.
Join us to explore the unnoticed performance effects of these APIs and learn strategies to mitigate their impact. Whether you're a seasoned developer or new to Java, this paper equips you with essential knowledge to optimize your applications.
Effectively Troubleshoot 9 Types of OutOfMemoryError
Embark on a journey into the depths of java.lang.OutOfMemoryError as we unravel its complex nature. Discover the nine distinct faces of this memory-related challenge and gain valuable insights into their unique causes and solutions. This session equips you with the knowledge, tools, and techniques needed to troubleshoot and conquer OutOfMemoryError in all its forms, ensuring smoother, more efficient Java applications.
Tier1app CEO & Founder, Ram Lakshmanan, spoke at All Day Devops 2017 about Java GC Logs. In this presentation, you can learn how to enable Java GC logs, commonly used GC log formats, tricks, patterns and tools to analyze them effectively.
This session brings to your attention how several millions of dollars are wasted and what you can do to save money. Optimizing garbage collection performance not only saves money, but also improves the overall customer experience as well.
Are you building high throughput, low latency application? Are you trying to figure out perfect JVM heap size? Are you struggling to choose right garbage collection algorithm and settings? Are you striving to achieve pause less GC? Do you know the right tools & best practices to tame the GC? Do you know to troubleshoot memory problems using GC logs? You will get complete answers to several such questions in this PPT.
This document provides an overview of Node.js application performance analysis and optimization as well as distributed system design. It discusses analyzing and optimizing CPU, memory, file I/O and network I/O usage. It also covers profiling Node.js applications using tools like Linux profiling tools, Node.js libraries, and V8 profiling tools. Lastly it discusses designing distributed systems using single machine and cluster approaches.
Talk for YOW! by Brendan Gregg. "Systems performance studies the performance of computing systems, including all physical components and the full software stack to help you find performance wins for your application and kernel. However, most of us are not performance or kernel engineers, and have limited time to study this topic. This talk summarizes the topic for everyone, touring six important areas: observability tools, methodologies, benchmarking, profiling, tracing, and tuning. Included are recipes for Linux performance analysis and tuning (using vmstat, mpstat, iostat, etc), overviews of complex areas including profiling (perf_events) and tracing (ftrace, bcc/BPF, and bpftrace/BPF), advice about what is and isn't important to learn, and case studies to see how it is applied. This talk is aimed at everyone: developers, operations, sysadmins, etc, and in any environment running Linux, bare metal or the cloud.
"
Uncover the hidden challenges that plague production environments in this eye-opening session. Join us as we explore the five most common performance problems that emerge in live systems. Gain invaluable insights into detecting these issues early on, before they wreak havoc on your operations. Discover practical solutions that empower you to address these challenges head-on, ensuring optimal performance and seamless user experiences.
Discover the Top 5 Java Performance Problems in our presentation. Learn about common issues in Java coding and how to fix them. This guide helps you make your Java applications run better and faster.
The document summarizes a lightning talk given at the Chicago Java User Group Meetup on January 14, 2016. The presenter discussed finding a suitable garbage collector for OpenTSDB, an open source time series database. Tests were conducted using three different garbage collectors: Parallel GC, CMS GC, and G1 GC. Based on analysis of GC logs and metrics, G1 GC was found to perform best by allowing more short-lived objects to be handled in the young generation, leading to more efficient garbage collection.
Talk by Brendan Gregg for USENIX LISA 2019: Linux Systems Performance. Abstract: "
Systems performance is an effective discipline for performance analysis and tuning, and can help you find performance wins for your applications and the kernel. However, most of us are not performance or kernel engineers, and have limited time to study this topic. This talk summarizes the topic for everyone, touring six important areas of Linux systems performance: observability tools, methodologies, benchmarking, profiling, tracing, and tuning. Included are recipes for Linux performance analysis and tuning (using vmstat, mpstat, iostat, etc), overviews of complex areas including profiling (perf_events) and tracing (Ftrace, bcc/BPF, and bpftrace/BPF), and much advice about what is and isn't important to learn. This talk is aimed at everyone: developers, operations, sysadmins, etc, and in any environment running Linux, bare metal or the cloud."
This document provides an overview of Linux performance monitoring tools including mpstat, top, htop, vmstat, iostat, free, strace, and tcpdump. It discusses what each tool measures and how to use it to observe system performance and diagnose issues. The tools presented provide visibility into CPU usage, memory usage, disk I/O, network traffic, and system call activity which are essential for understanding workload performance on Linux systems.
The document discusses garbage collection (GC) log analysis. It begins with an overview of key performance indicators (KPIs) related to GC and the anatomy of different GC log formats. It then introduces the gceasy.io tool for analyzing GC logs and provides examples of analyzing real-world GC logs to identify issues like long GC pauses, poor throughput, and memory leaks. The document aims to help understand how to extract useful insights from GC logs.
The document provides an overview of how to read and understand garbage collection (GC) log lines from different Java vendors and JVM versions. It begins by explaining the parts of a basic GC log line for the OpenJDK GC log format. It then discusses GC log lines for G1 GC and CMS GC in more detail. Finally, it shares examples of GC log formats from IBM JVMs and different levels of information provided. The document aims to help readers learn to correctly interpret GC logs and analyze GC behavior.
This presentation was given to the system adminstration team to give them an idea of how GC works and what to look for when there is abottleneck and troubles.
Java profiling Do It Yourself (jug.msk.ru 2016)aragozin
The document discusses various tools and techniques for Java profiling and diagnostics. It describes JVM diagnostic interfaces like JMX and JVMTI, the Attach Protocol, performance counters, and flight recording. It also summarizes tools like SJK and BTrace that provide command line interfaces for profiling, analyzing garbage collection, tracking CPU usage, working with heap dumps, and more. These tools exploit JVM interfaces and allow ad-hoc instrumentation to gather detailed insight into a running JVM.
A brief history of Instagram's adoption cycle of the open source distributed database Apache Cassandra, in addition to details about it's use case and implementation. This was presented at the San Francisco Cassandra Meetup at the Disqus HQ in August 2013.
Accelerating Incident Response To Production OutagesTier1 app
In this webinar, following topics were discussed
1) Production outages that happened in major enterprises in their JVM applications.
2) Analyzing the actual thread dumps, heap dumps, GC logs, and other artifacts captured at the time of the problem.
Speedrunning the Open Street Map osm2pgsql LoaderGregSmith458515
The Open Street Map project provides invaluable data that keeps driving users toward the PostGIS and PostgreSQL stacks. Loading today’s full Planet data set takes a 120GB XML file and unrolls it into over a terabyte of database data. Crunchy’s benchmark labs have followed the expansion of that Planet data over the last six database releases, as the re-ignition of the CPU wars combined with parallel execution features landing in the database. We’ll take a look at that data evolution, which server configurations worked, and which metrics techniques still matter in the all SSD era.
Netflix tunes Amazon EC2 instances for maximum performance. In this session, you learn how Netflix configures the fastest possible EC2 instances, while reducing latency outliers. This session explores the various Xen modes (e.g., HVM, PV, etc.) and how they are optimized for different workloads. Hear how Netflix chooses Linux kernel versions based on desired performance characteristics and receive a firsthand look at how they set kernel tunables, including hugepages. You also hear about Netflix's use of SR-IOV to enable enhanced networking and their approach to observability, which can exonerate EC2 issues and direct attention back to application performance.
Similar to Major Outages in Major Enterprises Payara Conference (20)
DECODING JAVA THREAD DUMPS: MASTER THE ART OF ANALYSISTier1 app
Are you ready to unlock the secrets hidden within Java thread dumps? Join us for a hands-on session where we'll delve into effective troubleshooting patterns to swiftly identify the root causes of production problems. Discover the right tools, techniques, and best practices while exploring *real-world case studies of major outages* in Fortune 500 enterprises. Engage in interactive lab exercises where you'll have the opportunity to troubleshoot thread dumps and uncover performance issues firsthand. Join us and become a master of Java thread dump analysis!
TROUBLESHOOTING 9 TYPES OF OUTOFMEMORYERRORTier1 app
Even though at surface level ‘java.lang.OutOfMemoryError’ appears as one single error; underlyingly there are 9 types of OutOfMemoryError. Each type of OutOfMemoryError has different causes, diagnosis approaches and solutions. This session equips you with the knowledge, tools, and techniques needed to troubleshoot and conquer OutOfMemoryError in all its forms, ensuring smoother, more efficient Java applications.
In our everyday Java programming, we rely on familiar APIs without fully realizing their hidden performance impacts. This session aims to unveil the concealed performance aspects of common Java APIs and shed light on how they can influence your application's performance.
Join us to explore the unnoticed performance effects of these APIs and learn strategies to mitigate their impact. Whether you're a seasoned developer or new to Java, this paper equips you with essential knowledge to optimize your applications.
Effectively Troubleshoot 9 Types of OutOfMemoryErrorTier1 app
Embark on a journey into the depths of java.lang.OutOfMemoryError as we unravel its complex nature. Discover the nine distinct faces of this memory-related challenge and gain valuable insights into their unique causes and solutions. This session equips you with the knowledge, tools, and techniques needed to troubleshoot and conquer OutOfMemoryError in all its forms, ensuring smoother, more efficient Java applications.
1) The document discusses how monitoring micro-metrics like garbage collection logs and thread dumps can help predict production outages in applications. It provides examples of how specific micro-metrics could predict issues like memory leaks, backend slowdowns, CPU spikes, and poor response times.
2) The document also describes yCrash, a tool that captures micro-metrics every 3 minutes from applications and uses machine learning to detect potential problems and trigger full troubleshooting if an issue is forecasted. It provides open-source scripts to collect various system and application metrics for troubleshooting.
3) Real-world case studies are presented on how micro-metrics helped predict and solve issues for major financial, trading, and travel companies to prevent production
Step into the future of application performance monitoring as we unveil the game-changing potential of micro-metrics. In this enlightening session, we'll explore why traditional macro-metrics fall short in predicting performance problems and how to overcome this limitation. Discover the key micro-metrics that serve as powerful lead indicators, enabling you to forecast application performance with remarkable accuracy. Unleash the ability to detect and mitigate potential outages several minutes, even hours, before they impact your operations.
Predicting Production Outages: Unleashing the Power of Micro-Metrics – ADDO C...Tier1 app
This document discusses various micro-metrics and tools that can be used to predict and troubleshoot production issues related to memory leaks, garbage collection throughput, backend slowdowns, CPU spikes, and concurrency issues. It provides examples of micro-metrics like GC throughput and tools like IBM GC & Memory Visualizer, yCrash, FastThread, and Google Garbage Cat that can analyze GC logs, thread dumps, and process data to identify potential problems. The document aims to help predict issues before they impact customers by continuously monitoring these micro-metrics and signals.
There are more than 600 arguments that you can pass to JVM only for garbage collection and memory. It's way too many arguments for anyone to digest and comprehend. In this session, we will highlight seven essential JVM parameters that will improve the performance of your application.
There are certain Java APIs that we use in our everyday programming. However, we may not be aware of their notorious performance side effects. In this session, we are going to discuss a few common Java APIs and their performance impact on your application.
It's not just stock market charts that have patterns. Your application memory also has patterns. In this session, you are going to learn 6 unique memory patterns. Using these patterns, you can *predict* application outages well in advance and also optimize the application's performance.
This session brings to your attention how several millions of dollars are wasted and what you can do to save money. Optimizing garbage collection performance not only saves money, but also improves the overall customer experience as well.
Ram Lakshmanan, the founder and the architect of yCrash talked about how to diagnose and solve issues when a app crashes due to a memory leak, thread leak, CPU spike, unresponsiveness, BLOCKED threads, Deadlocks, and Heavy I/O activity.
In this session, the following topics have been discussed: code snippets that can generate memory leak, thread leak, CPU spike, unresponsiveness, BLOCKED threads, Deadlocks, Heavy I/O activity. If you can understand what triggers these problems, diagnosing and solving them might become easier.
In this session, sample code snippets that can generate memory leak, thread leak, CPU spike, unresponsiveness, BLOCKED threads, deadlocks, heavy I / O activity are discussed. If you can understand what triggers these problems, diagnosing and solving them might become easier.
7 habits of highly effective Performance TroubleshootersTier1 app
Troubleshooting production performance problems is a combination of art, science, and discipline. Below is the presentation deck shared in the conference which explains, how to forecast the problems?, what to do when the problem is happening?, how to identify the root cause instantly? and how to prevent problems from happening in the future and so on.
In this session, we will be discussing major outages that happened in major enterprises. We will be analyzing the actual thread dumps, heap dumps, GC logs, and other artifacts captured at the time of the problem. After this session, troubleshooting CPU spikes, OutOfMemoryError, response time degradations, network connectivity issues, application unresponsiveness may not stump you.
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This document discusses 7 important JVM arguments for optimizing Java applications:
1. -Xmx sets the maximum heap size to control memory usage and number of JVM instances.
2. -XX:MaxMetaspaceSize sets the maximum metaspace size for class metadata.
3. -Xss sets the thread stack size which impacts memory efficiency of Java threads.
4. GC algorithm arguments like -XX:+UseParallelGC to select the garbage collection algorithm.
5. GC logging arguments like -Xloggc to analyze garbage collection logs.
6. Network timeout arguments -Dsun.net.client.defaultConnectTimeout and -Dsun.net.client.
This document discusses 7 important JVM arguments for optimizing Java applications:
1. -Xmx and -XX:MaxMetaspaceSize for configuring heap and metaspace sizes
2. -Xss for configuring thread stack sizes
3. GC algorithm arguments like -XX:+UseParallelGC
4. Arguments for enabling GC logging like -Xloggc
5. -XX:+HeapDumpOnOutOfMemoryError for generating heap dumps on OOM errors
6. Network timeout arguments like -Dsun.net.client.defaultReadTimeout
7. -Duser.timeZone for setting the application timezone
This document summarizes strategies for writing memory-efficient code. It discusses common sources of wasted memory like inefficient collections, duplicate strings, and object overhead. It provides examples of how to avoid these issues through techniques like using collection capacities, avoiding clear(), and leveraging string interning. Measuring memory usage through heap dumps and metrics is also recommended to identify optimization opportunities. Regular monitoring of memory usage is suggested to catch issues early and ensure applications perform efficiently.
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Connectors integrate Apache Kafka® with external data systems, enabling you to move away from a brittle spaghetti architecture to one that is more streamlined, secure, and future-proof. However, if your team still spends multiple dev cycles building and managing connectors using just open source Kafka Connect, it’s time to consider a faster and cost-effective alternative.
An MVP (Minimum Viable Product) mobile application is a streamlined version of a mobile app that includes only the core features necessary to address the primary needs of its users. The purpose of an MVP is to validate the app concept with minimal resources, gather user feedback, and identify any areas for improvement before investing in a full-scale development. This approach allows businesses to quickly launch their app, test its market viability, and make data-driven decisions for future enhancements, ensuring a higher likelihood of success and user satisfaction.
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Your project needs and long-term objectives will ultimately choose which of React Native and Flutter to use. For applications using JavaScript and current web technologies in particular, React Native is a mature and trustworthy choice. For projects that value performance and customizability across many platforms, Flutter, on the other hand, provides outstanding performance and a unified UI development experience.
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4. 2019-12-26 17:13:23
Full thread dump Java HotSpot(TM) 64-Bit Server VM (23.7-b01 mixed mode):
"Reconnection-1" prio=10 tid=0x00007f0442e10800 nid=0x112a waiting on condition [0x00007f042f719000]
java.lang.Thread.State: WAITING (parking)
at sun.misc.Unsafe.park(Native Method)
- parking to wait for <0x007b3953a98> (a java.util.concurrent.locks.AbstractQueuedSynchr)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
at java.lang.Thread.run(Thread.java:722)
:
:
1
2
3
1 Timestamp at which thread dump was triggered
2 JVM Version info
3 Thread Details - <<details in following slides>>
Anatomy of thread dump
"InvoiceThread-A996" prio=10 tid=0x00002b7cfc6fb000 nid=0x4479 runnable [0x00002b7d17ab8000]
java.lang.Thread.State: RUNNABLE
at com.buggycompany.rt.util.ItinerarySegmentProcessor.setConnectingFlight(ItinerarySegmentProcessor.java:380)
at com.buggycompany.rt.util.ItinerarySegmentProcessor.processTripType0(ItinerarySegmentProcessor.java:366)
at com.buggycompany.rt.util.ItinerarySegmentProcessor.processItineraryByTripType(ItinerarySegmentProcessor.java:254)
at com.buggycompany.rt.util.ItinerarySegmentProcessor.templateMethod(ItinerarySegmentProcessor.java:399)
at com.buggycompany.qc.gds.InvoiceGeneratedFacade.readTicketImage(InvoiceGeneratedFacade.java:252)
at com.buggycompany.qc.gds.InvoiceGeneratedFacade.doOrchestrate(InvoiceGeneratedFacade.java:151)
at com.buggycompany.framework.gdstask.BaseGDSFacade.orchestrate(BaseGDSFacade.java:32)
at com.buggycompany.framework.gdstask.BaseGDSFacade.doWork(BaseGDSFacade.java:22)
at com.buggycompany.framework.concurrent.BuggycompanyCallable.call(buggycompanyCallable.java:80)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
at java.util.concurrent.FutureTask.run(FutureTask.java:166)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:722)
5. "InvoiceThread-A996" prio=10 tid=0x00002b7cfc6fb000 nid=0x4479 runnable [0x00002b7d17ab8000]
java.lang.Thread.State: RUNNABLE
at com.buggycompany.rt.util.ItinerarySegmentProcessor.setConnectingFlight(ItinerarySegmentProcessor.java:380)
at com.buggycompany.rt.util.ItinerarySegmentProcessor.processTripType0(ItinerarySegmentProcessor.java:366)
at com.buggycompany.rt.util.ItinerarySegmentProcessor.processItineraryByTripType(ItinerarySegmentProcessor.java:254)
at com.buggycompany.rt.util.ItinerarySegmentProcessor.templateMethod(ItinerarySegmentProcessor.java:399)
at com.buggycompany.qc.gds.InvoiceGeneratedFacade.readTicketImage(InvoiceGeneratedFacade.java:252)
at com.buggycompany.qc.gds.InvoiceGeneratedFacade.doOrchestrate(InvoiceGeneratedFacade.java:151)
at com.buggycompany.framework.gdstask.BaseGDSFacade.orchestrate(BaseGDSFacade.java:32)
at com.buggycompany.framework.gdstask.BaseGDSFacade.doWork(BaseGDSFacade.java:22)
at com.buggycompany.framework.concurrent.BuggycompanyCallable.call(buggycompanyCallable.java:80)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
at java.util.concurrent.FutureTask.run(FutureTask.java:166)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:722)
1 2 3 4 5
6
7
1 Thread Name - InvoiceThread-A996
2 Priority - Can have values from 1 to 10
3
Thread Id - 0x00002b7cfc6fb000 – Unique ID assigned by JVM. It's returned by calling the Thread.getId() method.
4 Native Id - 0x4479 - This ID is highly platform dependent. On Linux, it's the pid of the thread. On Windows, it's simply the OS-level thread ID within
a process. On Mac OS X, it is said to be the native pthread_t value.
5 Address space - 0x00002b7d17ab8000 -
6 Thread State - RUNNABLE
7 Stack trace -
28. If you want to learn more…
https://ycrash.io/java-performance-training
Online-Training:
Java Performance/Troubleshooting Master class
@tier1app
https://www.linkedin.com/company/ycrash
This deck will be published in: https://blog.ycrash.io