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Posted to commits@predictionio.apache.org by do...@apache.org on 2017/03/13 16:53:52 UTC
[2/2] incubator-predictionio git commit: Minor editing
Minor editing
Closes #361
Project: http://git-wip-us.apache.org/repos/asf/incubator-predictionio/repo
Commit: http://git-wip-us.apache.org/repos/asf/incubator-predictionio/commit/ef0e2694
Tree: http://git-wip-us.apache.org/repos/asf/incubator-predictionio/tree/ef0e2694
Diff: http://git-wip-us.apache.org/repos/asf/incubator-predictionio/diff/ef0e2694
Branch: refs/heads/livedoc
Commit: ef0e26941fef7fda5c0fb23a4f1019f33c527156
Parents: 6975fc0
Author: Donald Szeto <do...@apache.org>
Authored: Mon Mar 13 09:53:22 2017 -0700
Committer: Donald Szeto <do...@apache.org>
Committed: Mon Mar 13 09:53:22 2017 -0700
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docs/manual/source/resources/faq.html.md | 61 +++++++++++++++------------
1 file changed, 33 insertions(+), 28 deletions(-)
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http://git-wip-us.apache.org/repos/asf/incubator-predictionio/blob/ef0e2694/docs/manual/source/resources/faq.html.md
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diff --git a/docs/manual/source/resources/faq.html.md b/docs/manual/source/resources/faq.html.md
index 455d06c..93cbb26 100644
--- a/docs/manual/source/resources/faq.html.md
+++ b/docs/manual/source/resources/faq.html.md
@@ -217,34 +217,39 @@ install a DNS server on your own computer. Some users have reported that using
[Google Public DNS](https://developers.google.com/speed/public-dns/) would also
solve the problem.
-### Q: How to fix Hbase issues after disk recovered from full state?
+### Q: How to fix HBase issues after cleaning up a disk that was full?
-You may receive error messages like `write error: No space left on device`
-when disk is full, and also receive error from `pio status` even after
-restarting pio services (due to
+You may receive error messages like `write error: No space left on device`
+when disk is full, and also receive error from `pio status` even after
+restarting PredictionIO services (due to
[an issue](https://issues.apache.org/jira/browse/ZOOKEEPER-1621) in ZooKeeper).
-The workaround is to delete newest `snapshot.xxxxx` and `log.xxxoo` under
-zookeeper data directory (ex: `$(HbaseRoot)/zookeeper/zookeeper_0/version-2`). Then
-restart all service with `pio-start-all`, and `pio status` will give you good answer.
-
-But If you still have problems connecting to event server, go checkout Hbase
-dashboard to see if there are `regions under transition`, then follow the steps:
-
-1. Try `hbase hbck -repair` and `hbase hbck -repairHoles`. If it solves the
-problem then you are all set, otherwise continue on.
-2. Find out the failing regions by `hbase hbck`.
-
- ```
- ...
- Summary:
- Table pio_event:events_1 is inconsistent.
- Number of regions: 2
- Deployed on: prediction.io,54829,1489213832255
- ...
- 2 inconsistencies detected.
- ```
-3. Shutdown Hbase process and delete `recovered.edits` folders under hbase data
-directory (ex: `$(HbaseRoot)/hbase/data/pio_event/events_1` in this example)
-for failing regions.
-4. Run `hbase hbck -repairHoles` and restart all pio services.
+One quick fix is to delete the newest `snapshot.xxxxx` and `log.xxxoo` in the
+ZooKeeper data directory (e.g. `$HBASE_HOME/zookeeper/zookeeper_0/version-2`).
+Restart all services with `pio-start-all`, and use `pio status` to check whether
+your setup is good to go again.
+
+If you still have problems connecting to the event server, take a look at the
+HBase dashboard to see if there are `regions under transition`. If so, try the
+following:
+
+1. Try `hbase hbck -repair` and `hbase hbck -repairHoles`. If it solves the
+ problem, you are all set. Otherwise, continue on.
+
+2. Find out failing regions by `hbase hbck`.
+
+ ```
+ ...
+ Summary:
+ Table pio_event:events_1 is inconsistent.
+ Number of regions: 2
+ Deployed on: prediction.io,54829,1489213832255
+ ...
+ 2 inconsistencies detected.
+ ```
+
+3. Shutdown HBase process and delete `recovered.edits` folders in the HBase
+ data directory (e.g. `$HBASE_HOME/hbase/data/pio_event/events_1` in this
+ example) for failing regions.
+
+4. Run `hbase hbck -repairHoles` and restart all PredictionIO services.