Jan Høydahl janhoy

Deprecated Java Code in Apache Solr

Purpose: Inventory of every @Deprecated element in the Solr Java source tree, with the date and Solr release in which the deprecation first shipped, plus whether it is present in branch_10x. Use this to plan removal of deprecated code and to decide whether a removal applies to main only or also to branch_10x.

Scanned 2026-06-16. main base version 11.0.0-SNAPSHOT; latest GA 10.0.0. 162 @Deprecated annotations across 90 files, all under solr/.

Tracking removals

The first column is a checkbox. Tick it ([ ] → [x]) by editing this gist when the deprecation has been removed.

To align OpenSearch with the energy and recognition that comes from an iconic mascot, we should select a character that captures the essence of openness, collaboration, and search functionality while resonating with a broad audience. Here's a possible direction for the mascot:

Mascot Concept: "Scout"

Name: Scout
Species/Character: A curious and adventurous Fox
Symbolism:

Fox is often associated with intelligence, curiosity, and agility. These traits mirror the qualities of a search engine, particularly one that is highly performant and adaptable like OpenSearch.
Scout evokes the idea of searching, exploring, and discovering new possibilities—core themes of what OpenSearch does. The name also suggests reliability, as a scout typically leads the way, ensuring safety and success for others.

Splitting a shard in Solr

Split the old shard [1] This will split the shard in two on the existing node. Note you need enough disk space.
```
 https://solr1/admin/collections?action=SPLITSHARD&collection=name&shard=shardID&async=9999
```
Poll for completion [2]

https://solr1/admin/collections?action=REQUESTSTATUS&requestid=9999

	import java.nio.ByteBuffer;
	import java.util.Arrays;
	import java.util.concurrent.CountDownLatch;
	import java.util.concurrent.TimeUnit;
	import org.eclipse.jetty.client.HttpClient;
	import org.eclipse.jetty.client.InputStreamResponseListener;
	import org.eclipse.jetty.http2.client.HTTP2Client;
	import org.eclipse.jetty.http2.client.transport.HttpClientTransportOverHTTP2;
	import org.eclipse.jetty.http2.server.HTTP2CServerConnectionFactory;
	import org.eclipse.jetty.server.Handler;

	Usage: solr start [-f] [--user-managed] [--host host] [-p port] [--server-dir directory] [-z zkHost] [-m memory]
	[-e example] [--solr-home solr.solr.home] [--data-home solr.data.home] [--jvm-opts "jvm-opts"] [--verbose]

	-f/--foreground Start Solr in foreground; default starts Solr in the background
	and sends stdout / stderr to solr-PORT-console.log

	--user-managed Start Solr in user managed aka standalone mode
	See the Ref Guide for more details: https://solr.apache.org/guide/solr/latest/deployment-guide/cluster-types.html

	--host <host> Specify the hostname for this Solr instance

	2024-06-05 09:45:08.258 INFO (OverseerThreadFactory-169-thread-5) [c:jan-5 s: r: x: t:] o.a.s.c.a.c.CreateCollectionCmd Create collection jan-5
	2024-06-05 09:45:08.455 ERROR (OverseerThreadFactory-169-thread-5) [c:jan-5 s: r: x: t:] o.a.s.c.p.i.AttributeFetcherImpl Received unsolicited snitch tag heapUsage from node NodeImpl(test-solr-9-solrcloud-0.test-solr-9-solrcloud-headless.test-solr:8983_solr)
	2024-06-05 09:45:08.455 ERROR (OverseerThreadFactory-169-thread-5) [c:jan-5 s: r: x: t:] o.a.s.c.p.i.AttributeFetcherImpl Received unsolicited snitch tag sysLoadAvg from node NodeImpl(test-solr-9-solrcloud-0.test-solr-9-solrcloud-headless.test-solr:8983_solr)
	2024-06-05 09:45:08.455 ERROR (OverseerThreadFactory-169-thread-5) [c:jan-5 s: r: x: t:] o.a.s.c.p.i.AttributeFetcherImpl Received unsolicited snitch tag freedisk from node NodeImpl(test-solr-9-solrcloud-0.test-solr-9-solrcloud-headless.test-solr:8983_solr)
	2024-06-05 09:45:08.455 ERROR (OverseerThreadFactory-169-thread-5) [c:jan-5 s: r: x: t:] o.a.s.c.p.i.A

	> Task :dependencyUpdates

	------------------------------------------------------------
	: Project Dependency Updates (report to plain text file)
	------------------------------------------------------------

	The following dependencies are using the latest milestone version:
	- ca.cutterslade.analyze:ca.cutterslade.analyze.gradle.plugin:1.8.3
	- com.cybozu.labs:langdetect:1.1-20120112
	- com.diffplug.spotless:com.diffplug.spotless.gradle.plugin:6.3.0

	runtimeClasspath - Runtime classpath of source set 'main'.
	+--- project :solr:core
	\| +--- org.apache.lucene:lucene-core:9.0.0
	\| +--- org.apache.lucene:lucene-analysis-common:9.0.0
	\| \| \--- org.apache.lucene:lucene-core:9.0.0
	\| +--- org.apache.lucene:lucene-queries:9.0.0
	\| \| \--- org.apache.lucene:lucene-core:9.0.0
	\| +--- org.slf4j:slf4j-api:1.7.36
	\| +--- project :solr:solrj
	\| \| +--- org.eclipse.jetty.http2:http2-client:9.4.44.v20210927

	#!/bin/bash
	branctotag() {
	BRANCH=$1
	REMOTE=$2

	if [[ $# -lt 2 ]]; then
	echo "Usage: ./branchToTag.sh <branch-name> <remote>"
	echo "Example: ./branchToTag.sh jira/SOLR-123 origin"
	echo " ...will create tag history/branches/lucene-solr/jira/SOLR-123 and delete the branch"
	exit 0

	#### https://issues.apache.org/jira/browse/SOLR-10595


	# ############# NOTE TO INFRA ##################
	#
	# The RewriteCond/RewriteRules below were tested in a mocked up system where
	# they were placed in an .htaccess, and the following RewriteMap directives existed
	# for the VirtualHost being used...
	#
	RewriteMap solr_id_to_new "txt:/home/hossman/tmp/solr_id_to_new.map.txt"