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new 1eb26c668fc MINOR: [C++][CI] Bump ccache max size (#51259)
1eb26c668fc is described below
commit 1eb26c668fc33352422e0c8a744cf5770929851e
Author: Antoine Pitrou <[email protected]>
AuthorDate: Thu Sep 10 10:18:40 2026 +0200
MINOR: [C++][CI] Bump ccache max size (#51259)
### Rationale for this change
When trying to analyze the compilation caching behavior on
https://github.com/apache/arrow/pull/51255, I realized that our maximum ccache
size of 1GB had become too small for some builds. The result is that a single
build cannot be cached in its entirety, making identical rebuilds costlier than
they should be.
### What changes are included in this PR?
Bump ccache max size to 1.5 GB.
### Are these changes tested?
Yes, by existing builds.
### Are there any user-facing changes?
No.
Authored-by: Antoine Pitrou <[email protected]>
Signed-off-by: Antoine Pitrou <[email protected]>
---
ci/scripts/ccache_setup.sh | 2 +-
compose.yaml | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/ci/scripts/ccache_setup.sh b/ci/scripts/ccache_setup.sh
index 4006a63a739..4a0f4020cd9 100755
--- a/ci/scripts/ccache_setup.sh
+++ b/ci/scripts/ccache_setup.sh
@@ -25,6 +25,6 @@ set -eux
echo "CCACHE_COMPILERCHECK=content"
echo "CCACHE_COMPRESS=1"
echo "CCACHE_COMPRESSLEVEL=6"
- echo "CCACHE_MAXSIZE=1G"
+ echo "CCACHE_MAXSIZE=1.5G"
echo "CCACHE_NOHASHDIR=1"
} >> "$GITHUB_ENV"
diff --git a/compose.yaml b/compose.yaml
index 07dc2af2db9..1741d00db43 100644
--- a/compose.yaml
+++ b/compose.yaml
@@ -57,7 +57,7 @@ x-ccache: &ccache
CCACHE_COMPILERCHECK: content
CCACHE_COMPRESS: 1
CCACHE_COMPRESSLEVEL: 6
- CCACHE_MAXSIZE: 1G
+ CCACHE_MAXSIZE: 1.5G
CCACHE_DIR: /ccache
# Some builds (such as PyArrow) copy their source files in a temporary
directory,
# avoid hashing the current directory to make ccache useful on those builds.
