*Peter,*
I created the ticket in Ignite JIRA. Hope someone form community will be
able to throw a glance on it soon -
https://issues.apache.org/jira/browse/IGNITE-2568
Please keep an eye on it.
Cross-posting the issue to Drill dev list.
*Dear Drill folks,*
We have our own implementation of Hadoop FileSystem here in Ignite. It has
unique URI prefix ("igfs://") and is normally registered in Hadoop's
core-site.xml like this:
<property>
<name>fs.igfs.impl</name>
<value>org.apache.ignite.hadoop.fs.v1.IgniteHadoopFileSystem</value></property>
However, when we try to use this file system as data source in Drill, the
exception is thrown (see stack trace below). I suspect that default Hadoop
core-site.xml is not taken in consideration by Drill somehow. Could you
please give us a hint on how to properly configure custom Hadoop FileSystem
implementation in your system?
Thank you!.
Vladimir.
Stack trace:
java.io.IOException: No FileSystem for scheme: igfs
at org.apache.hadoop.fs.FileSystem.getFileSystemClass(FileSystem.java:2644)
~[hadoop-common-2.7.1.jar:na]
at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:2651)
~[hadoop-common-2.7.1.jar:na]
at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:92)
~[hadoop-common-2.7.1.jar:na]
at org.apache.hadoop.fs.FileSystem$Cache.getInternal(FileSystem.java:2687)
~[hadoop-common-2.7.1.jar:na]
at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:2669)
~[hadoop-common-2.7.1.jar:na]
at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:371)
~[hadoop-common-2.7.1.jar:na]
at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:170)
~[hadoop-common-2.7.1.jar:na]
at
org.apache.drill.exec.store.dfs.DrillFileSystem.<init>(DrillFileSystem.java:92)
~[drill-java-exec-1.4.0.jar:1.4.0]
at
org.apache.drill.exec.util.ImpersonationUtil$2.run(ImpersonationUtil.java:213)
~[drill-java-exec-1.4.0.jar:1.4.0]
at
org.apache.drill.exec.util.ImpersonationUtil$2.run(ImpersonationUtil.java:210)
~[drill-java-exec-1.4.0.jar:1.4.0]
at java.security.AccessController.doPrivileged(Native Method)
~[na:1.8.0_40-ea]
at javax.security.auth.Subject.doAs(Subject.java:422) ~[na:1.8.0_40-ea]
at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1657)
~[hadoop-common-2.7.1.jar:na]
at
org.apache.drill.exec.util.ImpersonationUtil.createFileSystem(ImpersonationUtil.java:210)
[drill-java-exec-1.4.0.jar:1.4.0]
at
org.apache.drill.exec.util.ImpersonationUtil.createFileSystem(ImpersonationUtil.java:202)
[drill-java-exec-1.4.0.jar:1.4.0]
at
org.apache.drill.exec.store.dfs.WorkspaceSchemaFactory.accessible(WorkspaceSchemaFactory.java:150)
[drill-java-exec-1.4.0.jar:1.4.0]
at
org.apache.drill.exec.store.dfs.FileSystemSchemaFactory$FileSystemSchema.<init>(FileSystemSchemaFactory.java:78)
[drill-java-exec-1.4.0.jar:1.4.0]
at
org.apache.drill.exec.store.dfs.FileSystemSchemaFactory.registerSchemas(FileSystemSchemaFactory.java:65)
[drill-java-exec-1.4.0.jar:1.4.0]
at
org.apache.drill.exec.store.dfs.FileSystemPlugin.registerSchemas(FileSystemPlugin.java:131)
[drill-java-exec-1.4.0.jar:1.4.0]
at
org.apache.drill.exec.store.StoragePluginRegistry$DrillSchemaFactory.registerSchemas(StoragePluginRegistry.java:403)
[drill-java-exec-1.4.0.jar:1.4.0]
at
org.apache.drill.exec.ops.QueryContext.getRootSchema(QueryContext.java:166)
[drill-java-exec-1.4.0.jar:1.4.0]
at
org.apache.drill.exec.ops.QueryContext.getRootSchema(QueryContext.java:155)
[drill-java-exec-1.4.0.jar:1.4.0]
at
org.apache.drill.exec.ops.QueryContext.getRootSchema(QueryContext.java:143)
[drill-java-exec-1.4.0.jar:1.4.0]
at
org.apache.drill.exec.ops.QueryContext.getNewDefaultSchema(QueryContext.java:129)
[drill-java-exec-1.4.0.jar:1.4.0]
at
org.apache.drill.exec.planner.sql.DrillSqlWorker.<init>(DrillSqlWorker.java:93)
[drill-java-exec-1.4.0.jar:1.4.0]
at org.apache.drill.exec.work.foreman.Foreman.runSQL(Foreman.java:907)
[drill-java-exec-1.4.0.jar:1.4.0]
at org.apache.drill.exec.work.foreman.Foreman.run(Foreman.java:244)
[drill-java-exec-1.4.0.jar:1.4.0]
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
[na:1.8.0_40-ea]
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
[na:1.8.0_40-ea]
at java.lang.Thread.run(Thread.java:745) [na:1.8.0_40-ea]
On Fri, Feb 5, 2016 at 4:18 PM, pshomov <[email protected]> wrote:
>
> Hi Vladimir,
>
> My bad about that ifgs://, fixed it but it changed nothing.
>
> I don’t think Drill cares much about Hadoop settings. It never asked me to
> point it to an installation or configuration of Hadoop. I believe they have
> their own storage plugin mechanism and one of their built-in plugins
> happens to be the HDFS one.
>
> Here is (part of) the Drill log
>
> 2016-02-05 13:14:03,507 [294b5fe3-8f63-2134-67e0-42f7111ead44:foreman]
> ERROR o.a.d.exec.util.ImpersonationUtil - Failed to create DrillFileSystem
> for proxy user: No FileSystem for scheme: igfs
> java.io.IOException: No FileSystem for scheme: igfs
> at
> org.apache.hadoop.fs.FileSystem.getFileSystemClass(FileSystem.java:2644)
> ~[hadoop-common-2.7.1.jar:na]
> at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:2651)
> ~[hadoop-common-2.7.1.jar:na]
> at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:92)
> ~[hadoop-common-2.7.1.jar:na]
> at org.apache.hadoop.fs.FileSystem$Cache.getInternal(FileSystem.java:2687)
> ~[hadoop-common-2.7.1.jar:na]
> at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:2669)
> ~[hadoop-common-2.7.1.jar:na]
> at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:371)
> ~[hadoop-common-2.7.1.jar:na]
> at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:170)
> ~[hadoop-common-2.7.1.jar:na]
> at
> org.apache.drill.exec.store.dfs.DrillFileSystem.<init>(DrillFileSystem.java:92)
> ~[drill-java-exec-1.4.0.jar:1.4.0]
> at
> org.apache.drill.exec.util.ImpersonationUtil$2.run(ImpersonationUtil.java:213)
> ~[drill-java-exec-1.4.0.jar:1.4.0]
> at
> org.apache.drill.exec.util.ImpersonationUtil$2.run(ImpersonationUtil.java:210)
> ~[drill-java-exec-1.4.0.jar:1.4.0]
> at java.security.AccessController.doPrivileged(Native Method)
> ~[na:1.8.0_40-ea]
> at javax.security.auth.Subject.doAs(Subject.java:422) ~[na:1.8.0_40-ea]
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1657)
> ~[hadoop-common-2.7.1.jar:na]
> at
> org.apache.drill.exec.util.ImpersonationUtil.createFileSystem(ImpersonationUtil.java:210)
> [drill-java-exec-1.4.0.jar:1.4.0]
> at
> org.apache.drill.exec.util.ImpersonationUtil.createFileSystem(ImpersonationUtil.java:202)
> [drill-java-exec-1.4.0.jar:1.4.0]
> at
> org.apache.drill.exec.store.dfs.WorkspaceSchemaFactory.accessible(WorkspaceSchemaFactory.java:150)
> [drill-java-exec-1.4.0.jar:1.4.0]
> at
> org.apache.drill.exec.store.dfs.FileSystemSchemaFactory$FileSystemSchema.<init>(FileSystemSchemaFactory.java:78)
> [drill-java-exec-1.4.0.jar:1.4.0]
> at
> org.apache.drill.exec.store.dfs.FileSystemSchemaFactory.registerSchemas(FileSystemSchemaFactory.java:65)
> [drill-java-exec-1.4.0.jar:1.4.0]
> at
> org.apache.drill.exec.store.dfs.FileSystemPlugin.registerSchemas(FileSystemPlugin.java:131)
> [drill-java-exec-1.4.0.jar:1.4.0]
> at
> org.apache.drill.exec.store.StoragePluginRegistry$DrillSchemaFactory.registerSchemas(StoragePluginRegistry.java:403)
> [drill-java-exec-1.4.0.jar:1.4.0]
> at
> org.apache.drill.exec.ops.QueryContext.getRootSchema(QueryContext.java:166)
> [drill-java-exec-1.4.0.jar:1.4.0]
> at
> org.apache.drill.exec.ops.QueryContext.getRootSchema(QueryContext.java:155)
> [drill-java-exec-1.4.0.jar:1.4.0]
> at
> org.apache.drill.exec.ops.QueryContext.getRootSchema(QueryContext.java:143)
> [drill-java-exec-1.4.0.jar:1.4.0]
> at
> org.apache.drill.exec.ops.QueryContext.getNewDefaultSchema(QueryContext.java:129)
> [drill-java-exec-1.4.0.jar:1.4.0]
> at
> org.apache.drill.exec.planner.sql.DrillSqlWorker.<init>(DrillSqlWorker.java:93)
> [drill-java-exec-1.4.0.jar:1.4.0]
> at org.apache.drill.exec.work.foreman.Foreman.runSQL(Foreman.java:907)
> [drill-java-exec-1.4.0.jar:1.4.0]
> at org.apache.drill.exec.work.foreman.Foreman.run(Foreman.java:244)
> [drill-java-exec-1.4.0.jar:1.4.0]
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> [na:1.8.0_40-ea]
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> [na:1.8.0_40-ea]
> at java.lang.Thread.run(Thread.java:745) [na:1.8.0_40-ea]
> 2016-02-05 13:14:03,556 [294b5fe3-8f63-2134-67e0-42f7111ead44:foreman]
> ERROR o.a.drill.exec.work.foreman.Foreman - SYSTEM ERROR: IOException: No
> FileSystem for scheme: igfs
>
>
> [Error Id: 6c95179a-6d26-498c-905f-dc18509c1651 on 192.168.1.42:31010]
> org.apache.drill.common.exceptions.UserException: SYSTEM ERROR:
> IOException: No FileSystem for scheme: igfs
>
>
> I copied the same ignite jars that go into Hadoop to Drill just in case
> but that did not help either.
> I think the only way is to write a Drill storage plugin for Ignite. Or
> somehow make the Ignite caching happen inside Hadoop and be totally
> transparent to Drill.
>
> Thank you for detailed help, any further ideas are as always welcome ;)
>
> Best regards,
>
> Petar
>
> ------------------------------
> View this message in context: Re: Apache Drill querying IGFS-accelerated
> (H)DFS?
> <http://apache-ignite-users.70518.x6.nabble.com/Apache-Drill-querying-IGFS-accelerated-H-DFS-tp2840p2859.html>
> Sent from the Apache Ignite Users mailing list archive
> <http://apache-ignite-users.70518.x6.nabble.com/> at Nabble.com.
>
