NihalJain commented on PR #15876:
URL: https://github.com/apache/pinot/pull/15876#issuecomment-2902290104
Built Pinot locally and tested the patch by running the failing scenario as
follows:
1. Create `dataDir` and `segmentDir` directories with incorrect permissions
```
mkdir -p data
mkdir -p data/index
mkdir -p data/segmentTar
chmod 700 data
chmod 400 data/index
chmod 400 data/segmentTar
```
2. Start `server` with incorrect permission for `dataDir` and `segmentDir`
```
bin/pinot-admin.sh StartServer -dataDir data/index -segmentDir
data/segmentTar -zkAddress localhost:2191
```
3. We get error as expected now for `dataDir`:
```
2025/05/23 00:25:36.619 ERROR [StartServiceManagerCommand] [Start a Pinot
[SERVER]] Failed to start a Pinot [SERVER] at 1.624 since launch
java.lang.IllegalStateException: Cannot write to the instance data
directory: data/index
at
org.apache.pinot.server.starter.helix.HelixInstanceDataManager.initInstanceDataDir(HelixInstanceDataManager.java:189)
~[pinot-all-1.4.0-SNAPSHOT-jar-with-dependencies.jar:1.4.0-SNAPSHOT-5ede5782d132c1b3dbe1ca81e94a69614e49af6e]
at
org.apache.pinot.server.starter.helix.HelixInstanceDataManager.init(HelixInstanceDataManager.java:132)
~[pinot-all-1.4.0-SNAPSHOT-jar-with-dependencies.jar:1.4.0-SNAPSHOT-5ede5782d132c1b3dbe1ca81e94a69614e49af6e]
at
org.apache.pinot.server.starter.ServerInstance.<init>(ServerInstance.java:109)
~[pinot-all-1.4.0-SNAPSHOT-jar-with-dependencies.jar:1.4.0-SNAPSHOT-5ede5782d132c1b3dbe1ca81e94a69614e49af6e]
at
org.apache.pinot.server.starter.helix.BaseServerStarter.start(BaseServerStarter.java:682)
~[pinot-all-1.4.0-SNAPSHOT-jar-with-dependencies.jar:1.4.0-SNAPSHOT-5ede5782d132c1b3dbe1ca81e94a69614e49af6e]
at
org.apache.pinot.tools.service.PinotServiceManager.startServer(PinotServiceManager.java:167)
~[pinot-all-1.4.0-SNAPSHOT-jar-with-dependencies.jar:1.4.0-SNAPSHOT-5ede5782d132c1b3dbe1ca81e94a69614e49af6e]
at
org.apache.pinot.tools.service.PinotServiceManager.startRole(PinotServiceManager.java:97)
~[pinot-all-1.4.0-SNAPSHOT-jar-with-dependencies.jar:1.4.0-SNAPSHOT-5ede5782d132c1b3dbe1ca81e94a69614e49af6e]
at
org.apache.pinot.tools.admin.command.StartServiceManagerCommand$1.lambda$run$0(StartServiceManagerCommand.java:267)
~[pinot-all-1.4.0-SNAPSHOT-jar-with-dependencies.jar:1.4.0-SNAPSHOT-5ede5782d132c1b3dbe1ca81e94a69614e49af6e]
at
org.apache.pinot.tools.admin.command.StartServiceManagerCommand.startPinotService(StartServiceManagerCommand.java:293)
[pinot-all-1.4.0-SNAPSHOT-jar-with-dependencies.jar:1.4.0-SNAPSHOT-5ede5782d132c1b3dbe1ca81e94a69614e49af6e]
at
org.apache.pinot.tools.admin.command.StartServiceManagerCommand$1.run(StartServiceManagerCommand.java:267)
[pinot-all-1.4.0-SNAPSHOT-jar-with-dependencies.jar:1.4.0-SNAPSHOT-5ede5782d132c1b3dbe1ca81e94a69614e49af6e]
```
4. Now fix `dataDir` permission and restart `server`
```
chmod 700 data/index
bin/pinot-admin.sh StartServer -dataDir data/index -segmentDir
data/segmentTar -zkAddress localhost:2191
```
5. We still get error for `segmentDir` as expected
```
2025/05/23 00:26:27.734 ERROR [StartServiceManagerCommand] [Start a Pinot
[SERVER]] Failed to start a Pinot [SERVER] at 1.408 since launch
java.lang.IllegalStateException: Cannot write to the instance segment tar
directory: data/segmentTar
at
org.apache.pinot.server.starter.helix.HelixInstanceDataManager.initInstanceSegmentTarDir(HelixInstanceDataManager.java:199)
~[pinot-all-1.4.0-SNAPSHOT-jar-with-dependencies.jar:1.4.0-SNAPSHOT-5ede5782d132c1b3dbe1ca81e94a69614e49af6e]
at
org.apache.pinot.server.starter.helix.HelixInstanceDataManager.init(HelixInstanceDataManager.java:135)
~[pinot-all-1.4.0-SNAPSHOT-jar-with-dependencies.jar:1.4.0-SNAPSHOT-5ede5782d132c1b3dbe1ca81e94a69614e49af6e]
at
org.apache.pinot.server.starter.ServerInstance.<init>(ServerInstance.java:109)
~[pinot-all-1.4.0-SNAPSHOT-jar-with-dependencies.jar:1.4.0-SNAPSHOT-5ede5782d132c1b3dbe1ca81e94a69614e49af6e]
at
org.apache.pinot.server.starter.helix.BaseServerStarter.start(BaseServerStarter.java:682)
~[pinot-all-1.4.0-SNAPSHOT-jar-with-dependencies.jar:1.4.0-SNAPSHOT-5ede5782d132c1b3dbe1ca81e94a69614e49af6e]
at
org.apache.pinot.tools.service.PinotServiceManager.startServer(PinotServiceManager.java:167)
~[pinot-all-1.4.0-SNAPSHOT-jar-with-dependencies.jar:1.4.0-SNAPSHOT-5ede5782d132c1b3dbe1ca81e94a69614e49af6e]
at
org.apache.pinot.tools.service.PinotServiceManager.startRole(PinotServiceManager.java:97)
~[pinot-all-1.4.0-SNAPSHOT-jar-with-dependencies.jar:1.4.0-SNAPSHOT-5ede5782d132c1b3dbe1ca81e94a69614e49af6e]
at
org.apache.pinot.tools.admin.command.StartServiceManagerCommand$1.lambda$run$0(StartServiceManagerCommand.java:267)
~[pinot-all-1.4.0-SNAPSHOT-jar-with-dependencies.jar:1.4.0-SNAPSHOT-5ede5782d132c1b3dbe1ca81e94a69614e49af6e]
at
org.apache.pinot.tools.admin.command.StartServiceManagerCommand.startPinotService(StartServiceManagerCommand.java:293)
[pinot-all-1.4.0-SNAPSHOT-jar-with-dependencies.jar:1.4.0-SNAPSHOT-5ede5782d132c1b3dbe1ca81e94a69614e49af6e]
at
org.apache.pinot.tools.admin.command.StartServiceManagerCommand$1.run(StartServiceManagerCommand.java:267)
[pinot-all-1.4.0-SNAPSHOT-jar-with-dependencies.jar:1.4.0-SNAPSHOT-5ede5782d132c1b3dbe1ca81e94a69614e49af6e]
```
6. Next, fix `segmentDir` permission and restart `server`
```
chmod 700 data/segmentTar
bin/pinot-admin.sh StartServer -dataDir data/index -segmentDir
data/segmentTar -zkAddress localhost:2191
```
7. `Server` starts smoothly!
CC: @xiangfu0
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