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Debugging Tools for DEI

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Rashmi Rekha Gogoi
Introduction There are various system tools provided by the Linux server to capture different system diagnostic information. This is a wrapper to invoke needed commands that collect various diagnostics information from the Linux server. Usecase / Scenario Usually, sar/nmon reports are timed to collect system stats at every 10 min interval. Many…
in Debugging Tools for DEI
Rashmi Rekha Gogoi
Introduction On UNIX, whenever an application crash due to abnormal termination(SIGSEGV/SIGILL/SIGABRT/SIGBUS/..), it would leave a coredump that contains the state of the application at the time of issue. To analyze the cause of the issue in our labs, the coredump has to be collected along with dependent libraries associated with the crashed…
in Debugging Tools for DEI
Rashmi Rekha Gogoi
IntroductionThis is a program to run the other programs in Kerberos context. Note that KUtil honors the conf properties loaded into it and will not run the Child utility/program in Kerberos context if the property hadoop.security.authentication != kerberos Usage Compile the program if not done. $ unzip jdbcc.zip$ cdjdbcc$…
in Debugging Tools for DEI
Rashmi Rekha Gogoi
IntroductionGot a solr/hbase/yarnapp log of 10-20GB? Pulling your hairs off because your notepad++ can't open such huge files? Don't panic, this simple tool helps you in splitting the Yarn logs into multiple files (based on container / log types) and also builds an HTML index to quickly navigate through these files. Usecase / Scenario Splitting…
in Debugging Tools for DEI
Rashmi Rekha Gogoi
Introduction All sorts of wild things happen when your code leaves the safe and warm development environment. Unlike the comfort of the debugger in your favorite IDE, when errors happen on a live server - you better come prepared. No more breakpoints, step over, or step into, and you can forget about adding that quick line of code to help you…
in Debugging Tools for DEI
Rashmi Rekha Gogoi
Introduction ssgodbc is an interactive query tool for testing ODBC connection. You can enter a SQL statement, such as a SELECT query, and view the results. You can execute data definition language (DDL) statements to create tables and other objects. Usecase / Scenario The tool can be used to troubleshoot any issues with DB sessions connected…
in Debugging Tools for DEI
Rashmi Rekha Gogoi
Introduction Infa9logs is a tool used to collect application services logs – both from log service and from file system, workflow logs and session logs. Usecase / Scenario Infa9Logs is a command-line utility to collect multiple logs with a single command. It can be used to collect application service logs written to file system, log service…
in Debugging Tools for DEI
Rashmi Rekha Gogoi
Introduction The Java based tool to collect the Logs from the Informatica server machine Addresses challenges in the InfaLogs collector. Works in multiple modes to minimize the amount(#days) of logs collected Collects OS level Information,ebfHistory file, csm and few basic system settings Can collect jstacks and the heapdumps Usecase /…
in Debugging Tools for DEI
Rashmi Rekha Gogoi
Introduction A Shell script to collect the jstack, pmstack and heapdump on running process Helps to collect dumps at regular intervals for 'n' iterations Usecase / Scenario The tool can be used to collect thread/heap dumps from Java applications that are having issues like slowness, hangs and performance Features Does not require any credentials…
in Debugging Tools for DEI
Rashmi Rekha Gogoi
Introduction A tool to capture the native thread stacks on dtm/java process or any process running on Linux/AIX/Solaris server.   Usecase / Scenario When running an application on UNIX, it may fail with a signal exception and cause a core file, or it may stop responding (hang) and must be killed causing a core file.   The pmstack utility is a…
in Debugging Tools for DEI