iis 8 – Internet Information Services (IIS) pool reached Max size

Suddenly the website deployed in IIS given below :

System.InvalidOperationException: Timeout expired. The timeout period elapsed prior to obtaining a connection from the pool. This may have occurred because all pooled connections were in use and max pool size was reached.

NOTE : Database connections were available.

So i want to know how can i find the cause for this issue i.e. why i am getting this error.

Please help.

Windows Embedded 7 Memory Leak – Tag (poolmon) TD – Nonpaged Pool High Usage

I’ve been dealing with a memory leak and have been researching what the culprit is using Poolmon, Xperf and Windows Performance Analyzer.
The SO is a Windows Embedded 7 – 32 bit: I think that the nominal nonpaged pool limit is very low, maybe 256 MB (can’t find the actual limit, after 200/250 MB I have problems with my C# software).

I’ve found that the processes with the Poolmon tag ‘TD’ use most of the nonpaged pool:
I’ve tried to search for this TAG in C:WindowsSystem32drivers, C:WindowsSysWow64drivers and C:Program Files, but unsuccessfully.

For this research I followed this post:

Troubleshooting Nonpaged and Paged Pool Errors in Windows

Poolmon image

After generating a pool.etl file using xperf,
I opened it in WPA and located the non-paged processes using this unknown tag. I found the processes, but they are both ‘Unknown’ processes according to WPA:

WPA image

For this analysis, I followed this post
and I used this command:
xperf -on PROC_THREAD+LOADER+POOL -stackwalk PoolAlloc+PoolFree+PoolAllocSession+PoolFreeSession -BufferSize 2048 -MaxFile 1024 -FileMode Circular && timeout -1 && xperf -d C:pool.etl

Any suggestions? Where do I take it from here and what can I do?

bitcoin core – Can edit mining node pool transactions list?

if I have a mining node that is attached to a bitcoin mining pool, can edit the order of the transactions sent by the pool to be mined by my node, and edit it, and even add manually transactions to the list ?

if so there a a guide or example?

thanks a lot.

kvm virtualization – How do remove the default storage pool from a libvirt hypervisor, so that even after libvirtd restarts there is NO storage pool

I want to remove the default storage pool from my virt-manager AND NOT HAVE IT COME BACK BY ITSELF, EVER. I can destroy it and undefine it all I want, but when i restart libvirtd (for me thats “sudo systemctl restart libvirtd” in an arch linux terminal window), and restart virt-manager, the default storage pool is back, just like Frankenstein.

I don’t want a storage pool of any kind. I simply want to move from the dual-boot I have now (arch linux and windows) to running the two OS simultaneously. I intend to provision two physical disk partitions on the host to be disks on the guest, and I can do this via the xml that defines the domain.

Or am i required to have a storage pool no matter what?

Can someone configure a mining pool if the source code of the room is not published?

As simple as the title, can anyone set up a mining pool even if the only file published by the developers is the wallet? If not, what other options are available for extracting such a coin next to the wallet? Thank you.

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Is there a formula for the size of the connection pool?

I'm developing web services with an event architecture and wondering if there is a formula for counting the optimal size of the connection pool? Even if there are none, it would be very helpful to know what it depends on or to see actual measurements to know at least the order of magnitude. I tried to find scientific articles in the subject without success, but I may have used the wrong keywords.

AnyDice: second highest jet in the mixed pool

I just played with it (never used AnyDice before) and it seems like the problem is with what you think you are in your bands.

function: max A:n B:n C:n {
result: 2@(sort {A, B, C})
}
output (max 2d12 0d10 0d8)

Gives us a set A = d12 + d12 (range from 2 to 24) but we sort the 3 sets (A, B, C) not the individual dice so in first position is d12 + d12 but the second position would always be 0 because you have driven B or C 0 times.

If you use:

function: max A:n B:n C:n {
result: 2@(sort {A, B, C})
}
output (max 1d12 1d12 0d8)

You get the right answer, because the set B is now also a d12.

AnyDice: sum of the pool of dice + highest value of the same throw

In general, if you want to do things with a dice roll, you will want to use a function that takes a sequence. This function will be evaluated for each possible roll, so that your sequence in the function can be treated as a possible roll.

We then just need the highest (which will be the first for a generated sequence) and take its sum. There are many ways to convert a sequence to its sum; I have used here a secondary function that expects a number, and therefore the supplied sequence will be converted by summing it.

function: doublehighest POOL:s {
  result: 1@POOL + (sum POOL)
}

function: sum SEQ:n {result: SEQ}

output (doublehighest 2d6)
```

oracle – Java pool setting after obtaining ORA-04031

I am using Oracle 12.2.0.1 Standard Edition on Windows 2012 RC2.
I am NOT performing automatic memory management in Oracle.

We see them in the alert log:

ORA-04031: unable to allocate 4096 bytes of shared memory ("java pool","prv//////LBKLAGIMAAAAAAAA","JOXLE^aff7380e",":SGAClass")

The first thing I thought of trying was to empty the shared pool to fix the immediate problem, while the development team fixes the SQL code, so I executed:

ALTER SYSTEM FLUSH SHARED_POOL;

It was only then that I realized that the Java pool is not actually part of the shared pool. So I tried to take a look at the Java pool.

I think that tells me that my Java pool is around 32MB:

SQL> select * from v$javapool;

CATEGORY                                            MEMUSED     CON_ID
------------------------------------------------ ---------- ----------
:Intern                                              973440          0
:SGAClass                                          32103240          0
:SROState                                             81120          0

I have run this tuning tool, which, if I can interpret it correctly, says that there are not many benefits in increasing the size of the Java pool:

    select
       estd_lc_size,
       java_pool_size_for_estimate,
       java_pool_size_factor
    from
       v$java_pool_advice;

ESTD_LC_SIZE JAVA_POOL_SIZE_FOR_ESTIMATE JAVA_POOL_SIZE_FACTOR
------------ --------------------------- ---------------------
           8                          16                    .5
          24                          32                     1
          25                          48                   1.5
          25                          64                     2
          25                          80                   2.5
          25                          96                     3
          25                         112                   3.5
          25                         128                     4
          25                         144                   4.5
          25                         160                     5
          25                         176                   5.5

I can see that SGA_TARGET = 4928M and JAVA_POOL_SIZE = 0, so I am a little confused on how to fix this when we are not using AMM.

So how do you solve this problem?

  1. is my best option to increase the size of the Java pool?
  2. if so, what to do when you are not using AMM?