细碎笔记-便签

netstat -s | egrep "listen|LISTEN"

netstat -an|awk '/^tcp/{++S[$NF]}END{for (a in S)print a,S[a]}'

#根据ip分组
netstat -na|grep ESTABLISHED|awk '{print $5}'|awk -F: '{print $1}'|sort -nr|uniq -c

cat /proc/sys/net/ipv4/ip_local_port_range

#进程打开线程数
pstree -p 进程号 | wc -l

netstat -anp|grep 'TIME_WAIT'|wc -l

tail -200f /root//dat/logs/server.log|grep -i error

jmap -dump:format=b,file=manager.hprof pid
jmap -dump:live,format=b,file=live.hprof 23

pstree -p pid |wc -l 线程数
cat /proc/pid/status
netstat -ntlp
/home/rpa/dat/logs

tail -200f /home/rpa/dat/logs/common.log |grep -i "error" -A 20

cat /etc/mysql/conf.d/mysql.cnf

docker exec -it $(docker ps -a | awk '{ print $1}' | tail -n +2) bash
qzcsbjvip215

 

redis-cli -a 72zLhgEvyI

keys *
LLEN DSU-TASK-QUEUE
del DSU-TASK-QUEUE

 

db.getCollection('interactions').find({status:{$in :['timeout','done','abort','lock']}}).count()

db.getCollection('interactions').stats().count

db.getCollection('interactions').find({"processName":"压测任务"}).count()

1、查看集合索引
db.col.getIndexes()
2、查看集合索引大小
db.col.totalIndexSize()
3、删除集合所有索引
db.col.dropIndexes()
4、删除集合指定索引
db.col.dropIndex("索引名称")

kubectl exec -ti <your-pod-name> -n <your-namespace> -- /bin/sh