crestron troubleshooting

the "Start" button4) Go to the main interface, click "Start", go to the following interface, fill out and click "OK" in the upper right corner.7) Home DirectoryThe Home Directory section presents the overall state of the DB instance, which is rendered graphically, while more specific metrics and content can be obtained by clicking on the appropriate content. For example, to get the CPU specifics, you can click the underlined data below the CPU graph. Other cases are similar, as shown in:8) Perf

] [ [ ]] Example:Iostat-dIostat-d 2 2Iostat-x 1 2NetstatTo pay special attention to the number of "established", if the more established, the more connections established, if always high, then it is necessary to pay attention, because the system to open the number of connections is limited.Common applications:1. View the IP with the highest number of connectionsNetstat-na | grep established | awk ' {print $} ' | Awk-f: ' {print $} ' | Sort | Uniq-c2. Count the number

[Plain] view plaincopy # wget http://repo.mysql.com/mysql-community-release-el7-5.noarch.rpm --http://repo.mysql.com/mysql-community-release-el7-5.noarch.rpmParsing host repo.mysql.com (repo.mysql.com) ... 23.4.241.142Connecting repo.mysql.com (repo.mysql.com) |23.4.241.142|:80 ... is connected.An HTTP request has been made and is waiting for a response ... OKLength: 6140 (6.0K) [Application/x-redhat-package-manager]Saving to: "mysql-community-release-el7-5.noarch.rpm"100%[=======

connection, is an important column;Info, which shows this SQL statement, because the length is limited, so long SQL statements are not complete, but an important basis for judging the problem statement."Waiting for Table metadata lock" appears when a user's SQL is causing another SQL to wait for a lock, and if that happens, it causes a lot of SQL build-up and an exception to the instance state. So at this point the user is required to kill the query that causes the other SQL to wait for the loc

backup:#innobackupex--user Root--password 123456--databases= "Db66"/db66bak--no-timestamp#ls/db66bak mysql> use db66;mysql> drop table A;Mysql> CREATE TABLE A (id int); #ls/var/lib/mysql/db66/A.frm A.IBD Export table Information#innobackupex--user Root--password 123456--databases= "Db66"--apply-log--export/db66bak#ls/db66bak/db66/Delete Table spaceMysql> ALTER TABLE db66.a discard tablespace;#ls/var/lib/mysql/db66/ Copy the exported table information file from the backup directory to the databa

the question, such as the official explanation that some of the cases are not automatically configured: some frameworks or generic code used it before the program called DbContext.How to understand this problem, the situation of our project team is:Legacy systems also use EF6, the new iteration of the development of the system needs to be embedded in the old system to use, then there are two dbcontext in the old system, if the new system DbContext first initialized, then the program will not ha

Tags: php mysql connection errorPHP background is not connected to the MySQL database, view phpinfo,mysql driver normal.View Logs650) this.width=650; "Src=" https://s3.51cto.com/wyfs02/M01/9D/70/wKioL1mALB-ykR1IAAAipn-2nrs045.png-wh_500x0-wm_ 3-wmp_4-s_2710672881.png "title=" Qq20170801152132.png "alt=" Wkiol1malb-ykr1iaaaipn-2nrs045.png-wh_50 "/>The problem that the configuration is correct, the connection is rejected, and the suspect may be a user rightAccessing the database to view users and

/etc/my.cnfOnce found, copy one out[Email protected]_mysql ~]# cp/usr/share/doc/mysql-server-5.1.61/my-medium.cnf/etc/my.cnfCP: Do you want to overwrite "/etc/my.cnf"? Y2. Open/ETC/MY.CNF To modify the configuration file:[Email protected]_mysql ~]# vim/etc/my.cnfAdd under [client]Default-character-set=utf8Add under [mysqld]Default-character-set=utf8: Wq #保存3. Restart MySQLDepending on how you install MySQL, use the unused commands to restart your MySQL. If you have configured to use the Mysqld s

(Kbytes,-D) UnlimitedScheduling Priority (-e) 0File size (blocks,-f) UnlimitedPending signals (-i) 1031898Max locked Memory (Kbytes, L) 64Max memory Size (Kbytes,-m) unlimitedOpen files (-N) 65536Pipe Size (bytes,-p) 8POSIX message queues (bytes,-Q) 819200Real-time priority (-R) 0Stack size (Kbytes,-s) 10240CPU time (seconds,-t) unlimitedMAX User Processes (-u) 16384Virtual Memory (Kbytes,-V) UnlimitedFile locks (-X) Unlimited[Email protected] ~]$You can use ulimit-u 4096 to modify the value of

selected, Oracle Home directory Name: f:\app\admin\product\instantclient_11_2 , OCI Library:F:\app\admin\product\instantclient_11_2\oci.dllClick Apply when the settings are complete. Not configured, the following error is reported:If you still have problems at this point, you can configure them further: System environment variablesRight-click on My Computer-computer Properties-Advanced system settings-environment variables.Nls_lang (no words to create a new, some words click-Edit).Change its

MongoDB was installed, user Rex with admin root and test database added, and user authentication turned on.Connect to the MongoDB database as documented: $mongo = new MONGO ("Mongodb://rex:[email protected]");Results found error after opening firebug: "networkerror:500 Internal Server error-http://192.168.202.132/montest.php"There are a lot of ways to try it out, and it's unclear why it went wrong, only to read the official PHP document (http://php.net/manual/zh/mongoclient.construct.php)By chan

skip the password2, keep the cmd of the previous step does not close, the administrator runs another cmd, directly enter Mysql-u root-p Enter, display the input password, the direct return can be password-free login3, you can change the root password in the second cmd (see two).Note: The process MySQL does not have a net start MySQL operation.Four, net start MySQL when there is no startCheck to see if it is started, or if there is a mysqld.exe process running in the process.MyEclipse Database E

scheduled Tasks[Email protected] ~]# crontab-u root-l[Email protected] ~]# Cat/etc/crontab[Email protected] ~]# ls/etc/cron.*9) Check the system back door[Email protected] ~]# Cat/etc/crontab[Email protected] ~]# ls/var/spool/cron/[Email protected] ~]# cat/etc/rc.d/rc.local[Email protected] ~]# LS/ETC/RC.D[Email protected] ~]# LS/ETC/RC3.D10) Check System services[Email protected] ~]# chkconfig-list[[email protected] ~]# rpcinfo-p (view RPC service)11) Check for rootkits[Email protected] ~]# rk

current operating system, one of which is Cpuinfo, which contains information about the CPU. /proc/cpuinfo files display information by logical CPU instead of real CPU , each logical CPU information occupies a paragraph, the first logical CPU is identified from 0 start. to understand the file in the CPU information, there are several related concepts to know, such as: Processor toindicate the identity of the logical CPU, model name to indicate the real CPU models Information ,the physical ID re

is that the actual data is returned, is it the reason why the data is empty? Well, I'll manually add a qualifying H-line data, and after adding the data, execute the first SQL again, as follows: The results show that 1s of time comes out, which seems to be the problem. Analyze the results: There is a more important factor, that is the target table in the amount of data, there are 100000000+ records, although the query with the top 1, but in the absence of eligible data, the entire table will

. When uploading the Web application, the first thin body, that is, delete unnecessary jar or JSP or Java files, can avoid jar conflicts can also save space (SAE stipulates that a project maximum of 100M);2. Create an application, generally only need to create two versions on it, unless it is necessary, the first version of the non-tube (if only one version is not allowed to overwrite, so at least two versions), the second can update the iteration of your application (direct upload overlay);3. C

' t find remote ref Master or fatal: ' Origin ' does not appear to be a git repository and fatal:could not Read from remote repository. 4. You need to re-enter GIT remote add origin [email protected]:d Jqiang/gitdemo.git 4: A repository was created with Git init. git clone to another location, "receive.denycurrentbranch" configuration variable to ' refuse ' when using git push in Clone's repository. To Ip-addr:testone.git "Command line $ git--bare init--shared5:ERROR:SRC Refspec Master

Tags: troubleshooting common Linux failures for operational troubleshootingA general approach to the failure of a Linux systemError Messages---> Review log files---> Analyze location problems---> Resolve issues.Reasons and solutions for the failure of Linux system to startThere are many reasons why the system cannot be started, and there are several common situations:1 file system is destroyed, often due to power outages and illegal shutdown caused by

program ape "born as a Bachelor, Die also write code," The solemn and tragic, but also has "Hoe wo Day Copse, as the operation of suffering" feeling. Every day to the computer and machine, the time has been inevitable for career development confusion and confusion. The advent of security+ international certification allows the pursuit of IT operations personnel to learn network security knowledge, to master network security practices. Career development in the direction of network security, to

sudo apt-get update prompts the following warning: W:duplicate sources.list entry http://archive.canonical.com/ubuntu/precise/ Partner AMD64 Packages (/var/lib/apt/lists/archive.canonical.com_ubuntu_dists_precise_partner_binary-amd64_ Packages) w:duplicate sources.list entry http://archive.canonical.com/ubuntu/precise/partner i386 Packages (/var /lib/apt/lists/archive.canonical.com_ubuntu_dists_precise_partner_binary-i386_packages) W: You may need to run apt- get update To resolve these issues: