Now let’s create an index named "customer" and then list all the indexes again: 现在让我们创建一个名为“customer”的索引,然后再次列出所有索引: PUT /customer?pretty GET /_cat/indices?v The first command creates the index named "customer" using the PUT verb. We s…
FATAL: UNABLE TO CREATE ‘…GIT/INDEX.LOCK’ FILE EXISTS Hi, Today I will share you my other experience using git control system, it happened to me after I’ve created a branch, when adding my changes to remote or even committed my file I’ve started to s…
db.collection.createIndex( { name: -1 } ) Indexes — MongoDB Manual https://docs.mongodb.com/manual/indexes/ The following example creates a single key descending index on the name field: db.collection.createIndex( { name: -1 } ) The db.collection.cre…
Git – fatal: Unable to create ‘/.git/index.lock’: File exists. fatal: Unable to create ‘/path/my_proj/.git/index.lock’: File exists. If no other git process is currently running, this probably means a git process crashed in this repository earlier. M…
有时候在提交的时候,中间提交出错,导致有文件被lock,所以会报下面的错误: fatal: Unable to create ‘/msg/.git/index.lock’: File exists. If no other git process is currently running, this probably means a git process crashed in this repository earlier. Make sure no other git process is…
println("Step 1: How to create a wrapper String class which will extend the String type") class DonutString(s: String) { def isFavoriteDonut: Boolean = s == "Glazed Donut" } println("\nStep 2: How to create an implicit function to…
