. The client program is not affected by the server cluster and requires no modification. The scalability of the system is achieved by transparently joining or deleting a node in the server cluster, by detecting node or service process failures and correctly resetting the system to high availability.The abstract architecture of LVS is divided into three tiers: Load Scheduler (Payload balancer), server pool, shared storage (GKFX storage)650) this.width=650; "src=" Http://s1.51cto.com/wyfs02/M02/7B
considered. The algorithm is: (the number of active connections +1) *256÷ weight, the same calculated value of the small server priority is selected.8,NQ never queue . Improved SED algorithm. We think about the situation in order to "never queue", that is, the number of connections to the server is 0, then if there is a server connection number of 0, the equalizer directly forwarded the request to it, without the SED calculation.9,LBLC based on the l
considered. The algorithm is: (the number of active connections +1) *256÷ weight, the same calculated value of the small server priority is selected.8,NQ never queue . Improved SED algorithm. We think about the situation in order to "never queue", that is, the number of connections to the server is 0, then if there is a server connection number of 0, the equalizer directly forwarded the request to it, without the SED calculation.9,LBLC based on the l
, except that the number of inactive connections is not considered. The algorithm is: (the number of active connections +1) *256÷ weight, the same calculated value of the small server priority is selected.8,NQ never queue . Improved SED algorithm. We think about the situation in order to "never queue", that is, the number of connections to the server is 0, then if there is a server connection number of 0, the equalizer directly forwarded the request t
, except that the number of inactive connections is not considered. The algorithm is: (the number of active connections +1) *256÷ weight, the same calculated value of the small server priority is selected.8,NQ never queue . Improved SED algorithm. We think about the situation in order to "never queue", that is, the number of connections to the server is 0, then if there is a server connection number of 0, the equalizer directly forwarded the request t
, then if there is a server connection number of 0, the equalizer directly forwarded the request to it, without the SED calculation.9, LBLC based on the least local connection. Based on the destination IP address of the request, the equalizer finds the server that the IP address was recently used, and forwards the request, if the server is overloaded, the least number of connection algorithms are used.10, L
activate your own special effects function
Many people in order to improve the sound effects of music, can be said to be racking their brains to do. But they often do not know is, in fact, a lot of software from the relevant functions, users need to activate these functions can experience a different feeling. Windows Media player playback software, for example, comes with a series of special effects features.
First, open the Windows Media Player playback software, click the right mouse button
cluster's equalization policy. The administrator binds the tag to the scope of the slice key and binds the tag directly to the Shard, and the equalizer distributes the data that satisfies the tag directly to the Shard to which it is bound. and ensure that the data that satisfies the tag is stored on the corresponding shard.Tags are the first condition that controls the behavior of the equalizer and the dis
-restart the computer after the update is complete. If both of these cases are not present, please see the following steps directly.
Step ③: If there is no small horn in the lower right corner of the desktop, start-control panel-sound and Audio devices-check "put the volume icon into the taskbar"-OK.
Step ④: Click on the lower right corner of the desktop small horn--options--attributes--All options tick tick click "OK", you will see a long window, and a lot of it has not been shown, pullin
The default music player on Debian 7.0 is Rhythmbox. At the first look, it appearance seems not so bad. Although it has the problem of displaying Chinese characters, this can is solved by changing the Exec line in
/usr/share/applications/rhythmbox.desktop:
Exec=env GST_ID3_TAG_ENCODING=GBK Rhythmbox%uStill, this player cannot play the lossless ape format normally although it's claimed it can. This are due to some bugs in the GStreamer codec. Then, audacious comes to my rescue, which
the client configuration, and all access entries are changed to MONGOs;
Select the slice key to enable fragmentation.
Note: In the existing set of fragments, you need to ensure that the TAB key on the index, if not, you need to create first.
A very important component in the MongoDB fragment is called The Equalizer (balancer), which is actually played by MONGOs. The equalizer
1: I don't want to go offline in my desktop. So I went to a certain East to buy a USB wireless network card. The WN725NUSB of tp is very small, which is about the same size as that of the Logitech USB adapter. 2: The driver can identify it by itself. since it is a usb Nic, after the USB is inserted, lsusb will see a new line of Realtek id0133: 8179root @ debian:/# lsusbBus00 added.
1: I don't want to go offline in my desktop. So I went to a certain Ea
Locality and causes some datanode to be relatively busier.The Equalizer is a Hadoop daemon that moves blocks from the busy DN to the relatively idle DN while persisting in the block replica placement strategy, spreading the replicas to different machines, racks.It is recommended to perform the equalizer regularly, such as daily or weekly.(1) Run the equalizer wi
In MongoDB (version 3.2.9), the distribution of data refers to splitting the collection data into chunks (chunk) and distributing them on different shards (shard). There are 2 main ways to distribute data: Balanced distribution based on the number of blocks (chunk) and directed distribution based on the Slice key range (range). The MongoDB built-in equalizer (balancer) is used to split blocks and move blocks, automatically achieving uniform distributi
difficult for some cases (IP and Mac binding, network management does not agree. In addition, the VM cannot communicate with the host through the network after the network cable is unplugged from the host. This problem does not occur in the next few cases. Therefore, the bridge mode is not used.
1) Host IP information
2) set the VMware network connection to bridged.
3) Virtual Machine System Network Settings
Multi-nic bridgingWhen I have dual NICs, although vmnet0: bridged to a
some cases (IP and MAC binding, network management does not agree. In addition, the VM cannot communicate with the host through the network after the network cable is unplugged from the host. This problem does not occur in the next few cases. Therefore, the bridge mode is not used.1) Host IP information
2) set the VMware network connection to Bridged.
3) Virtual Machine System Network Settings
Multi-nic bridgingWhen I have dual NICs, although VMnet0: Bridged to an automatically chosen adapter
machine can only bridge the "local connection" (via Nic), not the "local connection 2" (RealTek Nic)
InVirtual Network Editor-> In the briic bridging Tab
If we want to bridge the "local connection 2" (RealTek Nic), we need to add "via nic" in "exclude adapters" (local connection ), in this way, "Local Connection 2" can be bridging. However, "Local Connection" (via Nic) is not acceptable, even if you rem
Connection 2" (Realtek network card)In the virtual Network Editor, Automatic bridging tabIf we want to bridge the "local Connection 2" (Realtek network card) need to "Exclude adapters" add "via Network card" (local connection), so that "local connection 2" can be bridged. However, "local connection" (via network card) is not possible, even in "Exclude adapters" remove "via network card" is not, I guess VMw
Please note: before adjusting, please make sure your computer has a built-in microphone, the sound card driver is properly installed, and please temporarily turn off QQ or other software that needs to call the microphone before adjusting.
The sound card driver name is Realtek high Defenation Audio
Can be seen in the Start-Control Panel-programs (Programs and functions)-Uninstall Programs list
This article takes
"shortcut" four words
Integrated Drive: ===========================
It is a waste of time for the technician who is engaged in this task to spend the day in the drive. With integrated drive technology, the installed staff can be freed from this repetitive work. System home Fast installed CD can be more perfect for a variety of hardware installation drive. Automatic installation of the driver will not delay the time to install the system, and the effect is the same as the manual installation.
W
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.