How to Solve /usr/local/libexec/mecab/mecab-dict-index error:/usr/local/libexec/mecab/mecab-dict-index: error while loading shared libraries: libmecab.so.2: cannot open shared object file: No such file or directory
Solution:
(myconda) root@************:/mnt/mecab-0.996# /usr/local/libexec/</Premise: I install percona-server-shared-compat-8.0.23-14.1.el8.x86 in percona server for MySQL 8.0 bundle on CentOS 8_ 64. RPM package, even if the latest version of OpenSSL (version: 1:1.1.1g-15.el8) is installed_ 3) It doesn’t help
error:Failed Dependencies
libcrypto.so.10()(64bit) is needed by percona-server-shared-compat-8.0.23-14.1.el8.x86_64.rpm
libcrypto.so.10(libcrypto.so.10)(64bit) is needed by percona-server-shared-compat-8.0.23-14.1.el8.x86_64.rpm
libssl.so.10()(64bit) is needed by percona-server-shared-compat-8.0.23-14.1.el8.x86_64.rpm
libssl.so.10(libssl.so.10)(64bit) is needed by percona-server-shared-compat-8.0.23-14.1.el8.x86_64.rpm
Process : Found the library when googling
https://pkgs.org/download/libcrypto.so.10()(64bit)
I found compat-openssl10 and an explanation to the effect that compat-openssl10 contains only libraries and provides compatibility with earlier versions and software that does not support compilation with OpenSSL-1.1.
The OpenSSL toolkit provides support for secure communications between machines. This version of OpenSSL package contains only the libraries and is provided for compatibility with previous releases and software that does not support compilation with OpenSSL-1.1.
From stackoverflow, we can find that openssl provides libcrypto.so.10 without the module name, making the system think that the dependency is missing
In your case, openssl seems to provide only libcrypto.so.10 without any module name, making geramer-server believe that dependency is missing as it requires libcrypto.so.10 from module libcrypto.so.10.
https://stackoverflow.com/questions/20518183/dependency-resolution-fails-on-installed-library
Solution:
yum install compat-openssl10
or
yum install http://mirror.centos.org/centos/8/AppStream/x86_64/os/Packages/compat-openssl10-1.0.2o-3.el8.x86_64.rpm
Questions
Use git command to clone Android kernel from Tsinghua open source software image station in Ubuntu, but the following error is reported:
$ git clone https://aosp.tuna.tsinghua.edu.cn/kernel/goldfish
Cloning into 'goldfish'...
remote: Enumerating objects: 116, done.
remote: Counting objects: 100% (116/116), done.
remote: Compressing objects: 100% (69/69), done.
error: RPC failed; curl 56 GnuTLS recv error (-9): Error decoding the received TLS packet.
fatal: The remote end hung up unexpectedly
fatal: early EOF
fatal: index-pack failed
Treatment method
After querying some blogs, this error is summed up as the reason why the file is too large
According to the method of the first problem in reference 1, execute the following commands respectively to solve the problem:
Set git minimum speed
$ git config --global http.lowSpeedLimit 0
$ git config --global http.lowSpeedTime 999999
Set http cache
$ git config --global http.postBuffer 1048576000
Among them, postbuffer is used to set HTTP cache, which can be set larger, such as 1g: git config — global http.postbuffer 1048576000, or 3G 3194304000
Debugging error in ec20cehg Linux
Run quectel CM & amp
requestRegistrationState2 MCC: 460, MNC: 0, PS: Attached, DataCap: EDGE
requestSetupDataCall QMUXResult = 0x1, QMUXError = 0xe
requestSetupDataCall QMUXResult = 0x1, QMUXError = 0xe`
Solution
1: When the Internet of things is locked, it needs to be unblocked
2: does the receiving and transmitting frequency bands of the antenna match
I encountered the first situation, replace the IoT card to solve, try the following with their own cell phone card, get the IP address to connect to the Internet can communicate.
Import the model in IPython and use tab to complete it. If this error occurs, it will be reported as follows:
NotImplementedError: Python version None is currently not supported.
The reason may be that the Parso package is too old and lacks the grammar38.txt file. Just go to the next higher version.
reason:
The log has reached the maximum space on the primary copy or the disk is full.
analysis
The log block of the primary replica can only be reused after it is fixed and redo on other replicas.
So if
1. Transmission delay, due to network delay or bandwidth delay.
2. Copy redo is slow due to delay, blocking or insufficient resources.
Causes the log to grow and cannot be backed up.
log_ send_ queue_ Size: a log block that has not been received by the replica. More than one log block means delivery delay.
redo_ queue_ Size: there is no redo log block on the replica. If there is more, it means redo delay.
SELECT ag.name AS [availability_group_name]
, d.name AS [database_name]
, ar.replica_server_name AS [replica_instance_name]
, drs.truncation_lsn , drs.log_send_queue_size
, drs.redo_queue_size
FROM sys.availability_groups ag
INNER JOIN sys.availability_replicas ar
ON ar.group_id = ag.group_id
INNER JOIN sys.dm_hadr_database_replica_states drs
ON drs.replica_id = ar.replica_id
INNER JOIN sys.databases d
ON d.database_id = drs.database_id
WHERE drs.is_local=0
ORDER BY ag.name ASC, d.name ASC, drs.truncation_lsn ASC, ar.replica_server_name ASCresolvent:
1. Remove the DB from the most delayed replica and join it later.
2. If the redo thread on the replica is blocked by frequent read operations, set the replica as unreadable and change it back later.
3. If there is still space on the disk, the log file will grow automatically.
4. If the maximum space limit is reached and the disk still has space, increase the maximum space limit.
5. If the log file reaches the maximum value of 2T system and there are idle disks, add the log file.
reference material
https://docs.microsoft.com/en-US/troubleshoot/sql/availability-groups/error-9002-transaction-log-large
When compiling gem5, the following error was reported:
the most likely reason is that your version of GCC is not right. It is recommended to upgrade a higher version of GCC. The pro test shows that 10.2.0 is effective, and no version below 8 seems to work
Modifying cmake will set the C + + standard
set(CMAKE_CXX_FLAGS "-std=c++11")Replace with
set(CMAKE_CXX_STANDARD 11)It can be solved
In the new version of cmake, the following method is used to set C + + standard
WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!
root@node145:~# ssh-copy-id -i ~/.ssh/id_rsa.pub [email protected] /usr/bin/ssh-copy-id: INFO: Source of key(s) to be installed: "/root/.ssh/id_rsa.pub" /usr/bin/ssh-copy-id: INFO: attempting to log in with the new key(s), to filter out any that are already installed /usr/bin/ssh-copy-id: ERROR: @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ ERROR: @ WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! @ ERROR: @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ ERROR: IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY! ERROR: Someone could be eavesdropping on you right now (man-in-the-middle attack)! ERROR: It is also possible that a host key has just been changed. ERROR: The fingerprint for the ECDSA key sent by the remote host is ERROR: SHA256:PO6FFmEQ9kOL1nodp3vLqVvCRW00Rhnn6cD9+SxbfbU. ERROR: Please contact your system administrator. ERROR: Add correct host key in /root/.ssh/known_hosts to get rid of this message. ERROR: Offending ECDSA key in /root/.ssh/known_hosts:2 ERROR: remove with: ERROR: ssh-keygen -f "/root/.ssh/known_hosts" -R "10.17.20.144" ERROR: ECDSA host key for 10.17.20.144 has changed and you have requested strict checking. ERROR: Host key verification failed. ### Solution Reassign the name of the file where the key is saved root@node145:~# ssh-keygen -f "/root/.ssh/known_hosts" -R 10.17.20.144 # Host 10.17.20.144 found: line 2 /root/.ssh/known_hosts updated. Original contents retained as /root/.ssh/known_hosts.old root@node145:~# ssh-copy-id -i ~/.ssh/id_rsa.pub [email protected] /usr/bin/ssh-copy-id: INFO: Source of key(s) to be installed: "/root/.ssh/id_rsa.pub" The authenticity of host '10.17.20.144 (10.17.20.144)' can't be established. ECDSA key fingerprint is SHA256:PO6FFmEQ9kOL1nodp3vLqVvCRW00Rhnn6cD9+SxbfbU. Are you sure you want to continue connecting (yes/no)?yes /usr/bin/ssh-copy-id: INFO: attempting to log in with the new key(s), to filter out any that are already installed /usr/bin/ssh-copy-id: INFO: 1 key(s) remain to be installed -- if you are prompted now it is to install the new keys [email protected]'s password: Number of key(s) added: 1 Now try logging into the machine, with: "ssh '[email protected]'" and check to make sure that only the key(s) you wanted were added.
SSH keygen command is used to generate, manage and transform authentication key for SSH. It supports RSA and DSA
SSH keygen (option)
-b: specify the length of the key. -e : read the private or public key file of openssh. -C: add comment. -f: specify the name of the file used to save the key. -i : reads the unencrypted ssh-v2 compatible private/public key file and then displays the openssh compatible private/public key on the standard output device. -l: display the fingerprint data of the public key file. -N: provide a new cipher. -P: provide the (old) cipher. -q: silent mode. -t: specify the type of key to be created.
[root@centOS ~]# journalctl -xe[root@centOS ~]# systemctl start network.service
Restarting network (via systemctl): Job for network.service failed because the control process exited with error code.
See “systemctl status network.service” and “journalctl -xe” for details.
[root@centOS ~]# systemctl status network.service
[root@centOS ~]# journalctl -xe
Reason.
On CentOS system, there are currently two network management tools, NetworkManager and network. If both are configured, it will cause conflicts, and NetworkManager will clean up the routes when the network is disconnected. If some custom routes, which are not added to NetworkManager’s configuration file, the routes are cleaned up and need to be custom added on after the network is connected.
Solution.
1. Stop the networkmanager service
systemctl stop NetworkManager
systemctl disable NetworkManager
2. restart the network card, it is OK
systemctl restart network
systemctl status network
Solution
（ 1) Change Cnetos7 managed startup file ， When the configuration service starts, does the daemon use the Some profiles
vim /usr/lib/systemd/system/docker.service
[ Service]
ExecStart=/usr/bin/dockerd # delete – After H (including) All content
(2) There is a problem with the configuration of daemon.json
Look carefully. What’s wrong
I didn’t write that before ， number
{ # Turn on remote connection
” hosts”: [” tcp://0.0.0.0 :2375″,”unix:///var/run/docker.sock”],
# Image acceleration (write your own, alicloud, don’t write it)
” registry-mirrors”: [“https://*******.mirror.aliyuncs.com”]
}
systemctl daemon-reload
systemctl start docker
Wait for the startup to succeed,
ss -anput | grep ： two thousand three hundred and seventy-five Display, port open