# Blocked by: \[FORBIDDEN/12/index read-only / allow delete (api)
**URL:** https://discuss.elastic.co/t/blocked-by-forbidden-12-index-read-only-allow-delete-api/121091
**Category:** Elasticsearch
**Created:** [February 22, 2018, 4:41pm UTC](https://discuss.elastic.co/t/blocked-by-forbidden-12-index-read-only-allow-delete-api/121091 "2018-02-22T16:41:07Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@kyle\_che](https://discuss.elastic.co/u/kyle_che)
#### Post date: [February 22, 2018, 4:41pm UTC](https://discuss.elastic.co/t/blocked-by-forbidden-12-index-read-only-allow-delete-api/121091/1 "2018-02-22T16:41:08Z")
I keep getting the following error in my cluster. What causes this error and how do I fix it?
Caused by: org.elasticsearch.cluster.block.ClusterBlockException: blocked by: [FORBIDDEN/12/index read-only / allow delete (api)];
at org.elasticsearch.cluster.block.ClusterBlocks.indexBlockedException(ClusterBlocks.java:182) ~[elasticsearch-6.2.0.jar:6.2.0]
at org.elasticsearch.action.support.replication.TransportReplicationAction$ReroutePhase.handleBlockExceptions(TransportReplicationAction.java:813) ~[elasticsearch-6.2.0.jar:6.2.0]
at org.elasticsearch.action.support.replication.TransportReplicationAction$ReroutePhase.doRun(TransportReplicationAction.java:713) ~[elasticsearch-6.2.0.jar:6.2.0]
at org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:37) ~[elasticsearch-6.2.0.jar:6.2.0]
at org.elasticsearch.action.support.replication.TransportReplicationAction.doExecute(TransportReplicationAction.java:170) ~[elasticsearch-6.2.0.jar:6.2.0]
at org.elasticsearch.action.support.replication.TransportReplicationAction.doExecute(TransportReplicationAction.java:98) ~[elasticsearch-6.2.0.jar:6.2.0]
at org.elasticsearch.action.support.TransportAction$RequestFilterChain.proceed(TransportAction.java:167) ~[elasticsearch-6.2.0.jar:6.2.0]
at org.elasticsearch.xpack.security.action.filter.SecurityActionFilter.apply(SecurityActionFilter.java:133) ~[?:?]
at org.elasticsearch.action.support.TransportAction$RequestFilterChain.proceed(TransportAction.java:165) ~[elasticsearch-6.2.0.jar:6.2.0]
at org.elasticsearch.action.support.TransportAction.execute(TransportAction.java:139) ~[elasticsearch-6.2.0.jar:6.2.0]
at org.elasticsearch.action.support.TransportAction.execute(TransportAction.java:81) ~[elasticsearch-6.2.0.jar:6.2.0]
at org.elasticsearch.action.bulk.TransportBulkAction$BulkOperation.doRun(TransportBulkAction.java:350) ~[elasticsearch-6.2.0.jar:6.2.0]
at org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:37) ~[elasticsearch-6.2.0.jar:6.2.0]
at org.elasticsearch.action.bulk.TransportBulkAction.executeBulk(TransportBulkAction.java:462) ~[elasticsearch-6.2.0.jar:6.2.0]
at org.elasticsearch.action.bulk.TransportBulkAction.doExecute(TransportBulkAction.java:175) ~[elasticsearch-6.2.0.jar:6.2.0]
at org.elasticsearch.action.bulk.TransportBulkAction.lambda$processBulkIndexIngestRequest$4(TransportBulkAction.java:514) ~[elasticsearch-6.2.0.jar:6.2.0]
at org.elasticsearch.ingest.PipelineExecutionService$2.doRun(PipelineExecutionService.java:103) ~[elasticsearch-6.2.0.jar:6.2.0]
at org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingAbstractRunnable.doRun(ThreadContext.java:635) ~[elasticsearch-6.2.0.jar:6.2.0]
at org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:37) ~[elasticsearch-6.2.0.jar:6.2.0]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) ~[?:1.8.0\_151]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) ~[?:1.8.0\_151]
... 1 more
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### Author:  [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)
#### Post date: [February 22, 2018, 4:43pm UTC](https://discuss.elastic.co/t/blocked-by-forbidden-12-index-read-only-allow-delete-api/121091/2 "2018-02-22T16:43:40Z")
How much disk space do you have left?
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### Author:  [@kyle\_che](https://discuss.elastic.co/u/kyle_che)
#### Post date: [February 22, 2018, 5:01pm UTC](https://discuss.elastic.co/t/blocked-by-forbidden-12-index-read-only-allow-delete-api/121091/3 "2018-02-22T17:01:56Z")
about 90% of the disk space is used so I have 10% left. Does it automatically get thrown into read only at 10%? How do you turn that feature off?
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### Author:  [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)
#### Post date: [February 22, 2018, 5:10pm UTC](https://discuss.elastic.co/t/blocked-by-forbidden-12-index-read-only-allow-delete-api/121091/4 "2018-02-22T17:10:33Z")
The watermarks are documented [here](https://www.elastic.co/guide/en/elasticsearch/reference/6.2/disk-allocator.html).
Disk usage will fluctuate while indexing, as merging takes place, so do not set these too high.
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### Author:  [@kyle\_che](https://discuss.elastic.co/u/kyle_che)
#### Post date: [February 22, 2018, 5:15pm UTC](https://discuss.elastic.co/t/blocked-by-forbidden-12-index-read-only-allow-delete-api/121091/5 "2018-02-22T17:15:14Z")
Thank you for the reply.
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [March 22, 2018, 5:15pm UTC](https://discuss.elastic.co/t/blocked-by-forbidden-12-index-read-only-allow-delete-api/121091/6 "2018-03-22T17:15:19Z")
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