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Boaz Leskes ba59cf1262
Capture stack traces while issuing IndexShard operations permits to easy debugging (#28567) 
Today we acquire a permit from the shard to coordinate between indexing operations, recoveries and other state transitions. When we leak an  permit it's practically impossible to find who the culprit is. This PR add stack traces capturing for each permit so we can identify which part of the code is responsible for acquiring the unreleased permit. This code is only active when assertions are active. 

The output is something like:
```
java.lang.AssertionError: shard [test][1] on node [node_s0] has pending operations:
--> java.lang.RuntimeException: something helpful 2
	at org.elasticsearch.index.shard.IndexShardOperationPermits.acquire(IndexShardOperationPermits.java:223)
	at org.elasticsearch.index.shard.IndexShard.<init>(IndexShard.java:322)
	at org.elasticsearch.index.IndexService.createShard(IndexService.java:382)
	at org.elasticsearch.indices.IndicesService.createShard(IndicesService.java:514)
	at org.elasticsearch.indices.IndicesService.createShard(IndicesService.java:143)
	at org.elasticsearch.indices.cluster.IndicesClusterStateService.createShard(IndicesClusterStateService.java:552)
	at org.elasticsearch.indices.cluster.IndicesClusterStateService.createOrUpdateShards(IndicesClusterStateService.java:529)
	at org.elasticsearch.indices.cluster.IndicesClusterStateService.applyClusterState(IndicesClusterStateService.java:231)
	at org.elasticsearch.cluster.service.ClusterApplierService.lambda$callClusterStateAppliers$6(ClusterApplierService.java:498)
	at java.base/java.lang.Iterable.forEach(Iterable.java:75)
	at org.elasticsearch.cluster.service.ClusterApplierService.callClusterStateAppliers(ClusterApplierService.java:495)
	at org.elasticsearch.cluster.service.ClusterApplierService.applyChanges(ClusterApplierService.java:482)
	at org.elasticsearch.cluster.service.ClusterApplierService.runTask(ClusterApplierService.java:432)
	at org.elasticsearch.cluster.service.ClusterApplierService$UpdateTask.run(ClusterApplierService.java:161)
	at org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingRunnable.run(ThreadContext.java:566)
	at org.elasticsearch.common.util.concurrent.PrioritizedEsThreadPoolExecutor$TieBreakingPrioritizedRunnable.runAndClean(PrioritizedEsThreadPoolExecutor.java:244)
	at org.elasticsearch.common.util.concurrent.PrioritizedEsThreadPoolExecutor$TieBreakingPrioritizedRunnable.run(PrioritizedEsThreadPoolExecutor.java:207)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
	at java.base/java.lang.Thread.run(Thread.java:844)

--> java.lang.RuntimeException: something helpful
	at org.elasticsearch.index.shard.IndexShardOperationPermits.acquire(IndexShardOperationPermits.java:223)
	at org.elasticsearch.index.shard.IndexShard.<init>(IndexShard.java:311)
	at org.elasticsearch.index.IndexService.createShard(IndexService.java:382)
	at org.elasticsearch.indices.IndicesService.createShard(IndicesService.java:514)
	at org.elasticsearch.indices.IndicesService.createShard(IndicesService.java:143)
	at org.elasticsearch.indices.cluster.IndicesClusterStateService.createShard(IndicesClusterStateService.java:552)
	at org.elasticsearch.indices.cluster.IndicesClusterStateService.createOrUpdateShards(IndicesClusterStateService.java:529)
	at org.elasticsearch.indices.cluster.IndicesClusterStateService.applyClusterState(IndicesClusterStateService.java:231)
	at org.elasticsearch.cluster.service.ClusterApplierService.lambda$callClusterStateAppliers$6(ClusterApplierService.java:498)
	at java.base/java.lang.Iterable.forEach(Iterable.java:75)
	at org.elasticsearch.cluster.service.ClusterApplierService.callClusterStateAppliers(ClusterApplierService.java:495)
	at org.elasticsearch.cluster.service.ClusterApplierService.applyChanges(ClusterApplierService.java:482)
	at org.elasticsearch.cluster.service.ClusterApplierService.runTask(ClusterApplierService.java:432)
	at org.elasticsearch.cluster.service.ClusterApplierService$UpdateTask.run(ClusterApplierService.java:161)
	at org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingRunnable.run(ThreadContext.java:566)
	at org.elasticsearch.common.util.concurrent.PrioritizedEsThreadPoolExecutor$TieBreakingPrioritizedRunnable.runAndClean(PrioritizedEsThreadPoolExecutor.java:244)
	at org.elasticsearch.common.util.concurrent.PrioritizedEsThreadPoolExecutor$TieBreakingPrioritizedRunnable.run(PrioritizedEsThreadPoolExecutor.java:207)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
	at java.base/java.lang.Thread.run(Thread.java:844)

```
 		2018-02-08 22:59:02 +01:00
..
cli Rename core module to server (#28180) 2018-01-11 11:30:43 -07:00
licenses Introduce secure security manager to project 2018-01-31 18:23:28 -05:00
src Capture stack traces while issuing IndexShard operations permits to easy debugging (#28567) 2018-02-08 22:59:02 +01:00
build.gradle Introduce secure security manager to project 2018-01-31 18:23:28 -05:00