Github user chenliang613 commented on a diff in the pull request:
https://github.com/apache/incubator-carbondata/pull/602#discussion_r102396384
--- Diff: docs/faq.md ---
@@ -18,30 +18,124 @@
-->
# FAQs
-* **Auto Compaction not Working**
- The Property carbon.enable.auto.load.merge in carbon.properties need
to be set to true.
+* [Can we preserve Segments from
Compaction?](#can-we-preserve-segments-from-compaction)
+* [Can we disable horizontal
compaction?](#can-we-disable-horizontal-compaction)
+* [What is horizontal compaction?](#what-is-horizontal-compaction)
+* [How to enable Compaction while data
loading?](#how-to-enable-compaction-while-data-loading)
+* [Where are Bad Records Stored in
CarbonData?](#where-are-bad-records-stored-in-carbondata)
+* [What are Bad Records?](#what-are-bad-records)
+* [Can we use CarbonData on Standalone Spark
Cluster?](#can-we-use-carbondata-on-standalone-spark-cluster)
+* [What versions of Apache Spark are Compatible with
CarbonData?](#what-versions-of-apache-spark-are-compatible-with-carbondata)
+* [Can we Load Data from excel?](#can-we-load-data-from-excel)
+* [How to enable Single Pass Data
Loading?](#how-to-enable-single-pass-data-loading)
+* [What is Single Pass Data Loading?](#what-is-single-pass-data-loading)
+* [How to specify the data loading format for CarbonData
?](#how-to-specify-the-data-loading-format-for-carbondata)
+* [How to resolve store location canât be
found?](#how-to-resolve-store-location-can-not-be-found)
+* [What is carbon.lock.type?]()
+* [How to enable Auto Compaction?](#how-to-enable-auto-compaction)
+* [How to resolve Abstract Method
Error?](#how-to-resolve-abstract-method-error)
+* [Getting Exception on Creating a
View](#getting-exception-on-creating-a-view)
+* [Is CarbonData supported for
Windows?](#is-carbondata-supported-for-windows)
+* [How to handle Bad Records?](#how-to-handle-bad-records)
-* **Getting Abstract method error**
+## Can we preserve Segments from Compaction?
+If you want to preserve number of segments from being compacted then you
can set the property **carbon.numberof.preserve.segments** equal to the
**value of number of segments to be preserved**.
--- End diff --
Can you explain which case need to preserve segments?
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at infrastruct...@apache.org or file a JIRA ticket
with INFRA.
---
