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Include details of abbreviations seen in exceptions #1190

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Include details of abbreviations seen in exceptions #1190

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Include details of abbreviations seen in exceptions
marafiq Jul 21, 2019
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Update Timeouts.md
marafiq Jul 21, 2019
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24 changes: 24 additions & 0 deletions docs/Timeouts.md
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Expand Up @@ -72,3 +72,27 @@ How to configure this setting:
- Outside of ASP.NET, use the [ThreadPool.SetMinThreads(…)](https://docs.microsoft.com/en-us/dotnet/api/system.threading.threadpool.setminthreads?view=netcore-2.0#System_Threading_ThreadPool_SetMinThreads_System_Int32_System_Int32_) API.

- In .Net Core, add Environment Variable COMPlus_ThreadPool_ForceMinWorkerThreads to overwrite default MinThreads setting, according to [Environment/Registry Configuration Knobs](https://github.com/dotnet/coreclr/blob/master/Documentation/project-docs/clr-configuration-knobs.md) - You can also use the same ThreadPool.SetMinThreads() Method as described above.

Explnation for abbrivations appearing in exception messages
---
By default Redis Timeout exception(s) includes useful information, which can help in uderstanding & diagnosing the timeouts. Some of the abbrivations are as follows:

| Abbrivation | Long Name | Meaning |
| ------------- | ---------------------- | ---------------------------- |
| inst | OpsSinceLastHeartbeat : {int} | |
|qu | Queue-Awaiting-Write : {int}|There are x operations currently waiting in queue to write to the redis server.|
|qs | Queue-Awaiting-Response : {int}|There are x operations currently awaiting replies from redis server.|
|aw | Active-Writer: {bool}||
|rs | Read-State: {enum}|Possible values are NotStarted, Init, RanToCompletion, Faulted, ReadSync, ReadAsync, UpdateWriteTime, ProcessBuffer, MarkProcessed, TryParseResult, MatchResult, PubSubMessage, PubSubPMessage, Reconfigure, InvokePubSub, DequeueResult, ComputeResult, CompletePendingMessage, NA|
|ws | Write-State: {enum}| Possible values are Initializing, Idle, Writing, Flushing, Flushed, NA|
|in | Inbound-Bytes : {long}|there are x bytes waiting to be read from the input stream from redis|
|in-pipe | Inbound-Pipe-Bytes: {long}|Bytes waiting to be read|
|out-pipe| Outbound-Pipe-Bytes: {long}|Bytes waiting to be sent|
|mgr | 8 of 10 available|Redis Internal Dedicated Thread Pool State|
|IOCP | IOCP: (Busy=0,Free=500,Min=248,Max=500)| Runtime Global Thread Pool IO Threads. |
|WORKER | WORKER: (Busy=170,Free=330,Min=248,Max=500)| Runtime Global Thread Pool Worker Threads.|
|v | Redis Version: version |Current redis version you are currently using in your application.|
|active | Message-Current: {string} |Included in exception message when `IncludeDetailInExceptions=True` on multiplexer|
|next | Message-Next: {string} |When `IncludeDetailInExceptions=True` on multiplexer, it might include command and key, otherwise only command.|
|Local-CPU | %CPU or Not Available |When `IncludePerformanceCountersInExceptions=True` on multiplexer, Local CPU %age will be included in exception message. It might not work in all environments where application is hosted. |