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https://issues.apache.org/jira/browse/DRILL-5270?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16384048#comment-16384048
]
ASF GitHub Bot commented on DRILL-5270:
---------------------------------------
Github user kkhatua commented on a diff in the pull request:
https://github.com/apache/drill/pull/755#discussion_r171944701
--- Diff:
exec/java-exec/src/main/java/org/apache/drill/exec/store/sys/store/DrillSysFilePathFilter.java
---
@@ -0,0 +1,53 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.drill.exec.store.sys.store;
+
+import static org.apache.drill.exec.ExecConstants.DRILL_SYS_FILE_SUFFIX;
+
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.fs.PathFilter;
+
+/**
+ * Filter for Drill System Files
+ */
+public class DrillSysFilePathFilter implements PathFilter {
--- End diff --
Ok. I was thinking of using
```
List<FileStatus> fileStatuses = DrillFileSystemUtil.listFiles(fs, basePath,
false, sysFileSuffixFilter);
```
> Improve loading of profiles listing in the WebUI
> ------------------------------------------------
>
> Key: DRILL-5270
> URL: https://issues.apache.org/jira/browse/DRILL-5270
> Project: Apache Drill
> Issue Type: Improvement
> Components: Web Server
> Affects Versions: 1.9.0
> Reporter: Kunal Khatua
> Assignee: Kunal Khatua
> Priority: Major
> Fix For: 1.14.0
>
>
> Currently, as the number of profiles increase, we reload the same list of
> profiles from the FS.
> An ideal improvement would be to detect if there are any new profiles and
> only reload from the disk then. Otherwise, a cached list is sufficient.
> For a directory of 280K profiles, the load time is close to 6 seconds on a 32
> core server. With the caching, we can get it down to as much as a few
> milliseconds.
> To render the cache as invalid, we inspect the last modified time of the
> directory to confirm whether a reload is needed.
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