Sachin Gupta 1010sachin

Post scrummary report to Confluence

It is assumed that the user of this script has:

Manta client installed locally. (includes json) (https://apidocs.joyent.com/manta/index.html)
Access to Joyent_Dev account (in order to get the scrummary report).

Instructions to get the scrummary report

From the terminal, get the scrummary report, called as all1999.html and store it locally, as:

Problem Statement

By default, a Timer uses an Exponentially Decaying Reservoir. This implementation of the timer is used to calculate the the rate, and timings (with percentiles) of manta HTTP requests and reported via JMX. We are, hereby, trying to list out the issues concerning the design and implementation of the Exponentially Decaying Reservoir (EDR) and alternative solutions in the form of Sliding Time Window Reservoir and it's enhanced version Sliding Time Window Array Reservoir

Exponentially Decaying Reservoir (EDR)

According to the definition, an EDR *produces quantiles which are representative of (roughly) the las

HeapDump from VM 64.30.138.24

The heap dump is analyzed using Eclipse Memory Analyzer tool.

Overview Page:

Leak Report of LinkedHashMap:

Problem Statement

Building the joyent/manta-monitor with JAVA 11, out of the box results in complie time errors something like:

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.8.0:compile (default-compile) on project manta-monitor: Compilation failure
[ERROR] /Users/sachingupta/Documents/Joyent/java-manta-monitor/manta-monitor/src/main/java/com/joyent/manta/monitor/JettyServerBuilderModule.java:[18,8] cannot access java.lang.Object
[ERROR]   bad class file: /modules/java.base/java/lang/Object.class
[ERROR]     class file has wrong version 55.0, should be 53.0
[ERROR]     Please remove or make sure it appears in the correct subdirectory of the classpath.

Keybase proof

I hereby claim:

I am 1010sachin on github.
I am 1010sachin (https://keybase.io/1010sachin) on keybase.
I have a public key ASBW35f4Gg0qVXiXmIJ7uQKOGRUKBHlZJEZ31DzITnsuEQo

To claim this, I am signing this object:

	triton -v info
	{"name":"triton","hostname":"joyentmac12331.local","pid":4488,"level":10,"config":{"cacheDir":"cache","profile":"jpc_manta_monitor","oldProfile":"us-sw-1","_user":{"profile":"jpc_manta_monitor","oldProfile":"us-sw-1"},"_defaults":{"cacheDir":"cache"},"_configDir":"/Users/sachingupta/.triton"},"msg":"loaded config","time":"2019-04-10T00:13:09.887Z","src":{"file":"/Users/sachingupta/.nvm/versions/node/v8.11.0/lib/node_modules/triton/lib/cli.js","line":271,"func":"getConfig"},"v":0}
	{"name":"triton","hostname":"joyentmac12331.local","pid":4488,"level":10,"profile":{"url":"https://us-sw-1.api.joyent.com","account":"manta_monitor","keyId":"ea:6e:21:00:f8:89:b6:75:6b:f0:3b:90:67:26:94:5b","name":"jpc_manta_monitor"},"msg":"loaded profile","time":"2019-04-10T00:13:09.889Z","src":{"file":"/Users/sachingupta/.nvm/versions/node/v8.11.0/lib/node_modules/triton/lib/cli.js","line":308,"func":"getProfile"},"v":0}
	{"name":"triton","hostname":"joyentmac12331.local","pid":4488,"level":10,"cacheDir":"/Users/sach