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new 2e95575ca HDDS-14913. [Auto] Update configuration documentation (#422)
2e95575ca is described below
commit 2e95575ca85bc6da542dbe683bcbc88e775941ee
Author: asf-ci-deploy <[email protected]>
AuthorDate: Fri May 8 11:57:23 2026 +0200
HDDS-14913. [Auto] Update configuration documentation (#422)
---
docs/05-administrator-guide/02-configuration/99-appendix.md | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/docs/05-administrator-guide/02-configuration/99-appendix.md
b/docs/05-administrator-guide/02-configuration/99-appendix.md
index e18ec6cb5..c23842181 100644
--- a/docs/05-administrator-guide/02-configuration/99-appendix.md
+++ b/docs/05-administrator-guide/02-configuration/99-appendix.md
@@ -583,6 +583,9 @@ This page provides a comprehensive overview of the
configuration keys available
| `ozone.recon.db.dirs.permissions` | 700 | | Permissions for the metadata
directories for Recon. The permissions can either be octal or symbolic. If the
default permissions are not set then the default value of 700 will be used. |
| `ozone.recon.dn.metrics.collection.minimum.api.delay` | 30s | `OZONE`,
`RECON`, `DN` | Minimum delay in API to start a new task for Jmx collection. It
behaves like a rate limiter to avoid unnecessary task creation. |
| `ozone.recon.dn.metrics.collection.timeout` | 10m | `OZONE`, `RECON`, `DN` |
Maximum time taken for the api to complete. If it exceeds pending tasks will be
cancelled. |
+| `ozone.recon.export.directory` | | `OZONE`, `RECON` | Directory where Recon
stores exported TAR files containing unhealthy container CSVs. When empty
(default), the path is resolved at runtime as `{ozone.recon.db.dir}`/exports so
exports are co-located with Recon metadata. |
+| `ozone.recon.export.max.downloads` | 3 | `OZONE`, `RECON` | Maximum number
of times a completed export TAR file can be downloaded. Once the limit is
reached the download endpoint returns HTTP 429. Prevents repeated downloads
from misusing network bandwidth. |
+| `ozone.recon.export.max.jobs.total` | 4 | `OZONE`, `RECON` | Maximum number
of export jobs (waiting + executing) that can exist at once. Submissions beyond
this limit are rejected with HTTP 429. Kept small because export is
single-threaded and the number of distinct unhealthy-container states is
bounded. |
| `ozone.recon.filesizecount.flush.db.max.threshold` | 200000 | `OZONE`,
`RECON`, `PERFORMANCE` | Maximum threshold number of entries to hold in memory
for File Size Count task in hashmap before flushing to recon derby DB |
| `ozone.recon.heatmap.enable` | false | `OZONE`, `RECON` | To enable/disable
recon heatmap feature. Along with this config, user must also provide the
implementation of "org.apache.hadoop.ozone.recon.heatmap.IHeatMapProvider"
interface and configure in "ozone.recon.heatmap.provider" configuration. |
| `ozone.recon.heatmap.provider` | | `OZONE`, `RECON` | Fully qualified
heatmap provider implementation class name. If this value is not set, then
HeatMap feature will be disabled and not exposed in Recon UI. Please refer
Ozone doc for more details regarding the implementation of
"org.apache.hadoop.ozone.recon.heatmap.IHeatMapProvider" interface. |
@@ -635,6 +638,7 @@ This page provides a comprehensive overview of the
configuration keys available
| `ozone.recon.task.reprocess.max.workers` | 20 | `OZONE`, `RECON`,
`PERFORMANCE` | Maximum number of worker threads to use for parallel table
processing during reprocess |
| `ozone.recon.task.safemode.wait.threshold` | 300s | `RECON`, `OZONE` | The
time interval to wait for starting container health task and pipeline sync task
before recon exits out of safe or warmup mode. |
| `ozone.recon.task.thread.count` | 1 | `OZONE`, `RECON` | The number of Recon
Tasks that are waiting on updates from OM. |
+| `ozone.recon.unhealthy.container.fetch.size` | 10000 | `OZONE`, `RECON` |
Number of rows Derby returns per JDBC round-trip when streaming unhealthy
container records during a CSV export. Higher values reduce round-trip overhead
at the cost of slightly more memory per fetch batch. |
| `ozone.replication.allowed-configs` |
^((STANDALONE\|RATIS)/(ONE\|THREE))\|(EC/(3-2\|6-3\|10-4)-(512\|1024\|2048\|4096)k)$
| `STORAGE` | Regular expression to restrict enabled replication schemes |
| `ozone.rest.client.http.connection.max` | 100 | `OZONE`, `CLIENT` | This
defines the overall connection limit for the connection pool used in
RestClient. |
| `ozone.rest.client.http.connection.per-route.max` | 20 | `OZONE`, `CLIENT` |
This defines the connection limit per one HTTP route/host. Total max connection
is limited by `ozone.rest.client.http.connection.max` property. |
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