[
https://issues.apache.org/jira/browse/HDDS-1685?focusedWorklogId=268975&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-268975
]
ASF GitHub Bot logged work on HDDS-1685:
----------------------------------------
Author: ASF GitHub Bot
Created on: 28/Jun/19 01:56
Start Date: 28/Jun/19 01:56
Worklog Time Spent: 10m
Work Description: avijayanhwx commented on pull request #987: HDDS-1685.
Recon: Add support for 'start' query param to containers…
URL: https://github.com/apache/hadoop/pull/987#discussion_r298428634
##########
File path:
hadoop-ozone/ozone-recon/src/main/java/org/apache/hadoop/ozone/recon/spi/impl/ContainerDBServiceProviderImpl.java
##########
@@ -164,38 +206,49 @@ public Integer getCountForForContainerKeyPrefix(
return prefixes;
}
- /**
- * Get all the containers.
- *
- * @return Map of containerID -> containerMetadata.
- * @throws IOException
- */
- @Override
- public Map<Long, ContainerMetadata> getContainers() throws IOException {
- // Set a negative limit to get all the containers.
- return getContainers(-1);
- }
-
/**
* Iterate the DB to construct a Map of containerID -> containerMetadata
- * only for the given limit.
+ * only for the given limit from the given start key. The start containerID
+ * is skipped from the result.
*
* Return all the containers if limit < 0.
*
+ * @param limit No of containers to get.
+ * @param prevKey containerID after which the list of containers are scanned.
* @return Map of containerID -> containerMetadata.
* @throws IOException
*/
@Override
- public Map<Long, ContainerMetadata> getContainers(int limit)
+ public Map<Long, ContainerMetadata> getContainers(int limit, long prevKey)
throws IOException {
Map<Long, ContainerMetadata> containers = new LinkedHashMap<>();
TableIterator<ContainerKeyPrefix, ? extends KeyValue<ContainerKeyPrefix,
Integer>> containerIterator = containerKeyTable.iterator();
+ boolean skipPrevKey = false;
+ ContainerKeyPrefix seekKey;
+ if (prevKey > 0L) {
+ skipPrevKey = true;
Review comment:
I believe we don't need this skipPrevKey flag. If the value of prevKey < 0,
then the method will return at Line 238. Also, instead of iterating the entire
key space of the prevKey container, can we do something like setting seek key
to prevKey+1. By that way, we will always pick the next container.
----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
[email protected]
Issue Time Tracking
-------------------
Worklog Id: (was: 268975)
Time Spent: 2.5h (was: 2h 20m)
> Recon: Add support for "start" query param to containers and containers/{id}
> endpoints
> --------------------------------------------------------------------------------------
>
> Key: HDDS-1685
> URL: https://issues.apache.org/jira/browse/HDDS-1685
> Project: Hadoop Distributed Data Store
> Issue Type: Sub-task
> Components: Ozone Recon
> Affects Versions: 0.4.0
> Reporter: Vivek Ratnavel Subramanian
> Assignee: Vivek Ratnavel Subramanian
> Priority: Major
> Labels: pull-request-available
> Time Spent: 2.5h
> Remaining Estimate: 0h
>
> * Support "start" query param to seek to the given key in RocksDB.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
