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504 Commits

Author SHA1 Message Date
Jason Tedor
a15ba75d93
Fix lock accounting in releasable lock 
Releasble locks hold accounting on who holds the lock when assertions
are enabled. However, the underlying lock can be re-entrant yet we mark
the lock as not held by the current thread as soon as the releasable is
closed. For a re-entrant lock this is not right because the thread could
have entered the lock multiple times. Instead, we have to count how many
times the thread has entered the lock and only mark the lock as not held
by the current thread when the counter reaches zero.

Relates #28202
 2018-01-12 16:17:30 -05:00
Igor Motov
c75ac319a6
Add ability to associate an ID with tasks (#27764) 
Adds support for capturing the X-Opaque-Id header from a REST request and storing it's value in the tasks that this request started. It works for all user-initiated tasks (not only search).

Closes #23250

Usage:
```
$ curl -H "X-Opaque-Id: imotov" -H "foo:bar" "localhost:9200/_tasks?pretty&group_by=parents"
{
  "tasks" : {
    "7qrTVbiDQKiZfubUP7DPkg:6998" : {
      "node" : "7qrTVbiDQKiZfubUP7DPkg",
      "id" : 6998,
      "type" : "transport",
      "action" : "cluster:monitor/tasks/lists",
      "start_time_in_millis" : 1513029940042,
      "running_time_in_nanos" : 266794,
      "cancellable" : false,
      "headers" : {
        "X-Opaque-Id" : "imotov"
      },
      "children" : [
        {
          "node" : "V-PuCjPhRp2ryuEsNw6V1g",
          "id" : 6088,
          "type" : "netty",
          "action" : "cluster:monitor/tasks/lists[n]",
          "start_time_in_millis" : 1513029940043,
          "running_time_in_nanos" : 67785,
          "cancellable" : false,
          "parent_task_id" : "7qrTVbiDQKiZfubUP7DPkg:6998",
          "headers" : {
            "X-Opaque-Id" : "imotov"
          }
        },
        {
          "node" : "7qrTVbiDQKiZfubUP7DPkg",
          "id" : 6999,
          "type" : "direct",
          "action" : "cluster:monitor/tasks/lists[n]",
          "start_time_in_millis" : 1513029940043,
          "running_time_in_nanos" : 98754,
          "cancellable" : false,
          "parent_task_id" : "7qrTVbiDQKiZfubUP7DPkg:6998",
          "headers" : {
            "X-Opaque-Id" : "imotov"
          }
        }
      ]
    }
  }
}
```
 2018-01-12 15:34:17 -05:00
Nhat Nguyen
55a14230a7
Do not keep 5.x commits once having 6.x commits (#28188) 
Currently we keep a 5.x index commit as a safe commit until we have a
6.x safe commit. During that time, if peer-recovery happens, a primary
will send a 5.x commit in file-based sync and the recovery will even
fail as the snapshotted commit does not have sequence number tags.

This commit updates the combined deletion policy to delete legacy
commits if there are 6.x commits.

Relates #27606
Relates #28038
 2018-01-11 18:34:17 -05:00
Tim Brooks
99f88f15c5
Rename core module to server (#28180) 
This is related to #27933. It renames the core module to server. This is
the first step towards introducing an elasticsearch-core jar.
 2018-01-11 11:30:43 -07:00