Blog categorized as Uncategorized
Issue:
- A few events are missing in Splunk Cloud. Most of the data is being ingested as expected. Missing events that should be forwarded by the forwarder, UF or HF. This issue happens intermittently.
Root Cause:
- Splunk forwarder queues are saturated. When it was released Splunk tailreader went to r...
14.07.24 01:46 PM - Comment(s)
Issue:
- When trying to upgrade Splunk UF on Windows, the upgrade installer wizard provides less options than normal and fails during the upgrade process.
Root Cause:
- Bad/corrupted registry entry within Windows which may even get deployed to multiple systems via Windows SCCM (System Center Configurat...
13.07.24 01:03 PM - Comment(s)
Issue:
- After upgrading UF to 9.1.2, data ingestion issues were found. Reverting to the previous version works fine. Data flow is stopped.
Root Cause:
- Version 9.1 and above are installed by default with a VSA (virtual service account), which can cause problems with certain paths and resources.
Soluti...
11.07.24 12:57 PM - Comment(s)
Issue:
- After upgrading to Splunk UF to v9.1.3 version, data flow is happening, but Windows instance is exhausting the CPU.
Root Cause:
- Version 9.1 and above are installed by default with a VSA (virtual service account), which can cause problems with certain paths and resources.
Solution:
- Enable the...
07.07.24 01:00 PM - Comment(s)
Issue:
- Splunk Add-on for Salesforce is unable to make API calls and no data is collected from the Forwarder. (Error messages from Add-on)
Root Cause:
- KV Store is down. Splunk Add-on for Salesforce uses the KV Store service in data collection, so KV Store should be up and running. The License is not...
07.07.24 12:54 PM - Comment(s)
Issue:
- Data cloning from a forwarder to two different indexers, there are gaps of data in one of the indexes, both receive the data but one of them maintains a latency.
Root Cause:
- Forwarder’s throughput was limited, so it is not able to send data to both of the indexers with proper cloning
INFO Tai...
07.07.24 12:50 PM - Comment(s)
Issue:
After Migration to cloud, On-Prem forwarders are not able to connect properly. (HTTP Event Collector Connection Fails)
Root Cause:
- Splunk App for Stream is not able to generate and detect HEC tokens automatically.
Solution:
- Need to do fresh installation of “Splunk App for Stream“ without putti...
07.07.24 12:43 PM - Comment(s)
Issue:
- Both internal logs and data from UF get delayed for about 30 seconds. (Event Indexing delay)
- Difference between _time and _indextime is about 30 seconds.
Root Cause:
- UF processes a larger number of files than it typically does.
- Increased size of the fishbucket & the processing of...
07.07.24 12:24 PM - Comment(s)
Issue:
The cluster was successfully created, but the apps could not be pushed to the search head members.
Root Cause:
pass4SymmKey mismatch between the Deployer & Search Head Cluster members.
Solution:
Update the pass4SymmKey, so that all components have the same value.
07.07.24 12:20 PM - Comment(s)
The activity that happened was Upgrade..
Upgrade from 8.2.5 version to 9.2.0 version
Issue:
When browsing the Forwarder Management, no Clients are displayed.
Root Cause:
Deployment Server’s outputs.conf was missing the new internal indexes (_dsclient, _dsphonehome, _dsappevent)
Solution:
Add new internal i...
15.06.24 03:13 PM - Comment(s)
The activity happened was Migration..
Migration from Standalone Splunk instance to a clustered indexer set-up of 2 indexers.
Issue:
After migration, one of the indexers keeps crashing the moment we enabled receiving on the Indexer.
Root Cause:
$SPLUNK_DB folder did not have the required permission. Only ...
15.06.24 03:11 PM - Comment(s)
Issue: Forwarder stopped sending data (after upgrading from 8.x to 9.0.x)
ERROR TcpOutputQ Unexpected event
Root cause:
1. Mostly after upgrading from 8.2.x to 9.0.x, you can see this errors.
2. If useACK set to true and batch mode is ON (default) with Splunk 9.0, there is a possibility of hitting...
15.06.24 02:54 PM - Comment(s)
Issue:
Splunk software is crashing too often
Splunk software is crashing too often
Root cause:
The host machine was having a low Ulimit setting (default)
The host machine was having a low Ulimit setting (default)
Note: The ulimits control the resources available to a *nix shell and any processes that the shell starts. A *nix host running Splunk software often needs a higher ulimit setting than...
14.06.24 09:16 PM - Comment(s)
Issue:
The TCP output processor has paused the data flow -Heavy Forwarder queues are blockedwhile the indexer is empty.
Errors seen on Indexer:
ERROR TcpInputProc [13891 FwdDataReceiverThread] - Encountered S2S Exception="Failed" to parse observed latency with value="18446744073709...
14.06.24 09:16 PM - Comment(s)
Issue:
Heavy forwarder Paused Data Flow with Warning: "The TCP output processor has paused the data flow".
WARN TcpOutputProc - The TCP output processor has paused the data flow. Forwarding to host_dest="xxx.xxx.xxx.xxx" inside output group default-autolb-group from host_src=...
14.06.24 09:16 PM - Comment(s)
Issue:
Unable to push a particular App from Deployer To Search Head
- Failing while using the flag -push-default-apps set to true
$SPLUNK_HOME/bin/splunk apply shcluster-bundle -target https://<target>:8089 -push-default-apps true
Error while deploying apps to first member, aborting ap...
14.06.24 07:23 PM - Comment(s)
Issue:
Splunk software is crashing too often
File name: $SPLUNK_HOME/splunk/var/log/splunk/crash.log
[build 6818ac46f2ec] 2023-12-11 15:43:29
Received fatal signal 6 (Aborted) on PID 20332.
Cause: Signal sent by PID 20332 running under UID 1002.
Cause: Signal sent by PID 20332 running under UID 1002.
Crashing thread: WebuiStartup
Root cause:
The ...
The ...
14.06.24 07:23 PM - Comment(s)
Issue:
Splunk Enterprise does not start due to unusable filesystem.
Root cause:
Splunk software does not know how to write to your machine's filesystem.
homePath='/opt/splunk/var/lib/splunk/audit/db' of index="_audit" on unusable filesystem.
Validating databases (splunkd valid...
14.06.24 07:23 PM - Comment(s)
Issue:
Log file monitoring is enabled in Windows, but data is not coming.
Root cause:
Splunk keeps ignoring it, stating that it's a binary file.
02-26-2016 09:26:54.574 -0500 WARN FileClassifierManager - The file C:\Temp\w32tmdebug.log' is invalid. Reason: binary
02-26-2016 09:26:54.574 -0500 INFO Tail...
14.06.24 07:23 PM - Comment(s)
Issue:
Indexed data is present only on 1 indexer and is not replicated across peers / indexers.
Root Cause:
“repFactor = auto” property is missing
Solution:
Add “repFactor=auto” under the index stanza, which requires replication.
Step-1: In Cluster Manager node, edit the “indexes.conf” file.
Step-2: Dep...
11.06.24 07:03 PM - Comment(s)
Categories
Tags
- Data Replication Issues
- Data Frowarding Issues
- App Deployment Issues
- Indexers down 3-member cluster
- Two Indexers down 3-member cluster
- All Indexers down 3-member cluster
- Search Heads down 3-member cluster
- Two Search heads down 3-member cluster
- All Search Heads down 3-member cluster
- Deployer is down
- Monitoring Console down
- Deployment Server down
- Universal Forwarder down
- License Server/Manager down
- Decide number Search Heads & Indexers
- how to choose forwarder (UF or HF)
- Intermediate Forwarder (IF))
- Licence Forwarders
- can't use single instance with huge size instead separatly
- How splunk stores Indexes
- Possible open flat files in Notepad++
- Possible rename index
- clean index splunk instances & indexer cluster
- Migrate index 1 splunk server to another splunk server
- Backup splunk configuration/data
- upgrade splunk enterprise
- upgrade splunk enterprise which clustered
- Upgrade the Splunk Universal Forwarder
- Deploy apps to search head clusters
- Deploy Apps indexer Cluster
- Connect Forwarders to indexer cluster
- Difference between Heavy forwarders & HTTP Event collector
- Cluster Master is down Then need a cluster master
- colocation of splunk components
- meant colocation splunk components
- Deployment server to distribute apps to search head cluster & indexer
- reduce licence in splunk
- why need license master/server
- Replication Factor lower than search factor
- Timestamp Issues
- Event Truncation Issues
- Retention Plicy Issues
- SAML Issues
- Parsing Issues
- File Monitoring Issue
- Configuration Issue
- Summary Index Issues
- Deployment Issues